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Circuit Protection and
Power Management Solutions
Full Line Electronics Catalog

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

2007 Electronic Components

INTRODUCTION
From overcurrent and overvoltage protection to supercapacitors and magnetics, Cooper Bussmann
provides integrated solutions that meet the evolving needs of technology-driven markets. Cooper
Bussmann is a leader and an innovator in providing cost-effective, comprehensive solutions that
utilize the high quality brand names that customers know and trust.

Circuit Protection
The Cooper Bussmann® Electronic Fuse family offers fail-safe circuit protection devices in SMD,
Thru-Hole, and traditional Ferrule Fuse packages.
The Cooper Bussmann® PolySurg™ sub-branded family offers protection for sensitive electronic
circuits from the damaging effects of electrostatic discharge (ESD).

Power Management
The Cooper Coiltronics® family of transformers and inductors offers a broad range of solutions to
meet precise specifications in a variety of applications.
The Cooper PowerStor® family of aerogel capacitors offers ultra-low resistance supercapacitors,
unique high-energy storage devices.
Cooper Bussmann continues its 90-year history of blazing new trails of innovative technologies.
Cooper Bussmann manufactures the industry’s first truly global product line. Each item is backed
by an efficient worldwide network of distribution, customer service and technical support. Cooper
Bussmann products include the most extensive circuit protection solutions approved for use in
compliance with a variety of major standards: UL, CSA, IEC within wide range of applications:
industrial motor protection, power conversion, medium voltage, power distribution, telecommunications network equipment, electronics, and automotive. Manufacturing operations in North America,
Europe, and Asia have earned ISO 9000 certification. Cooper Bussmann customers are assured
of only the utmost quality across every product line. Our team is knowledgeable, responsive and
customer focused. Bussmann continues to set the standard for circuit protection solutions around
the world.
To receive further information on Cooper Bussmann products, visit www.cooperbussmann.com
or contact customer service at 888-414-2645.

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Circuit
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The Cooper Bussmann® Electronic Fuse family offers fail-safe circuit
protection devices in SMD, Thru-Hole, and traditional Ferrule Fuse

p

RoHS
2002/95/EC

packages.

CHIP™ Fuses (0603FA & 3216FF Series)
Cooper Bussmann's patented Solid Matrix CHIP™ fuses
provide reliable overcurrent protection to secondary
circuits found in mobile phone handsets, battery packs,
digital still cameras, PDA's, HDD's, printers, notebook
computers, televisions, automotive instrument panels,
battery packs, and more. Its excellent cycling
characteristics, small footprint, and SMD package provide
the most effective, reliable overcurrent protection solution
for today's - and tomorrow's - technologies.

Telecom Circuit Protector (TCP Series)
Cooper Bussmann is proud to be the first to offer a surface
mount telecom circuit protector designed to protect against
power cross faults and comply with surge requirements for
the telecom industry. Today, you will find the TCP Series
fuse in central office subscriber line interface cards,
basestations, set-top box modems, and xDSL modems
among other applications.

BRICK™ Fuses (6125FA/TD & 1025FA/TD Series)
Cooper Bussmann's patented BRICK™ fuses
provide the excellent inrush withstand
capabilities in a space saving SMD package
needed in many of today's more demanding
applications such as power supplies, base
stations, televisions, computers, white goods,
and motor control circuits among others.

SR-5 & SS-5 Series Radial Leaded Fuses
Cooper Bussmann is bringing the space-saving SR-5
and SS-5 family of radial leaded fuses to the global
market to provide cost-effective primary circuit
protection in space-constrained applications such as
power adapters, televisions, handheld consumer
products, white goods, and more.

IEC & UL Electronic Fuses
In addition to SMD and Thru-Hole Device Fuses, Cooper Bussmann offers a full range of traditional
electronic fuses designed to IEC standards (5mm product line) and UL standards (1/4" product line).
Both product lines offer a cost-efficient overcurrent protection solution for a wide range of applications
including power supplies, white goods, motor control equipment, and set-top boxes. Coupled with one
of Cooper Bussmann’s extensive fuse accessories product offerings, these fuses can be conveniently

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inserted into a circuit while allowing for end-user replacement if desired. And with Cooper Bussmann’s expansive global
distribution, your customers will have easy access to ensure safe, reliable, correct replacement parts available when needed.

Electrical Fuses
Cooper Bussmann® brand power fuses are the industry leader for your more demanding power applications.
From the innovative CUBEFuse™ product line – offering touch-safe, current-limiting fusible protection – to the time-honored
Fusetron® product line with class-leading time-delay performance, Cooper Bussmann® fuses set the standard for motor and
branch circuit protection. And now, with easyID™ technology available with the CUBEFuse™ and Low-Peak® product lines,
reliable permanent open fuse indication for reduced downtime and maintenance costs.
For more delicate semiconductor drive applications, Cooper Bussmann High Speed fuses provide rapid response to damaging
short circuits keeping your investment safe from damages. And look no further than the Cooper Bussmann Telpower® brand
fuses for protection of critical telecommunication infrastructure.

PolySurg™ ESD Suppression Devices
Cooper Bussmann PolySurg™ ESD Suppressors are bi-directional ESD overvoltage
protection devices that respond in less than 1ns and can protect against a threat voltage up
to 15kV per IEC standard 61000-4-2. With leakage current of less than 1nA and an ultra low capacitance less than 0.15pF,
these devices are an especially viable solution for high data rate applications. With an insertion loss
of less than -0.2dB at frequencies up to 6 GHz, the PolySurg™ ESD Suppressors are invisible to the
protected circuit, introducing no additional loading or signal distortion.

ESD Protection for High Frequency, Low Voltage Designs
PolySurg™ surface mount devices are ideally suited for ESD protection of data I/O ports, computers
and peripherals, media interfaces (DVI and HDMI), mobile communication products, hand-held test
equipment and other similar uses.

MLP Series Now Available
The MLP Series, comprised of the 0402ESDA-MLP and 0603ESDA-MLP ESD suppression devices, is now available as
discrete devices in an 0402 and 0603 footprint, respectively. This series utilizes Cooper Bussmann’s patented PolyFAMILY
design to deliver enhanced ESD protection using state of the art process and material technologies.

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A leading global brand name in the power magnetics
marketplace since 1977.
RoHS
2002/95/EC

Leading-Edge Technology
Cooper Coiltronics® brand magnetics specializes in standard and custom solutions offering the latest in
state-of-the-art low profile high power density magnetic components. In working closely with the
industry leaders in chipset and core development, we remain at the forefront of innovation and
new technology to deliver the optimal mix of packaging, high efficiency and unbeatable reliability.
Our designs utilize high frequency, low core loss materials, new and custom core shapes in
combination with innovative construction and packaging to provide designers with the highest
performance parts available on the market.

Market-Driven Products
Cooper Coiltronics brand magnetics is the first choice in power inductor and transformer solutions to
the ever-changing Digital Home, Office and Mobile electronics world. In support of this market, we
specialize in inductors and transformers for DC-DC power conversion and switch-mode applications
requiring high frequency. Our component solutions can be found in many products requiring power
conversion including cellular telephones, digital cameras, MP3 players, notebook and desktop
computers & peripherals & LCD displays across the Consumer, Communication, Computer,
Industrial and Automotive markets.

Standard Products
Cooper Coiltronics brand product line of power magnetics continually expands to satisfy shifts in
technology and related market needs. Categories of Standard Products include:
• Shielded Drum Inductors
• Low Profile Shielded Drum Inductors
• Unshielded Drum Inductors
• High Current Inductors
• Common-Mode Inductors
• Toroidal Inductors
• Transformers
• Custom Magnetics

Custom-Engineered Capabilities
• Inductors and Transformers for DC/DC Converters and Off-Line Switch Mode Power Supplies
(To 200 Watts at voltages up to 450Vac [640 Vdc] and Frequencies from 20Khz to 10Mhz)
• Custom SMT Inductors and Transformers
Cooper Coiltronics brand products can provide you with custom designs from print through manufacture.
Our design Engineers can take your designated specifications or help you determine what the specifications
should be. Either way, we’ll get you the right power magnetic solution to your design challenge.

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Shielded Drum Inductors and Low
Profile Shielded Drum Inductors
Cooper Coiltronics® brand magnetics put forward one of the largest variety of shielded drum
core inductors that utilize a magnetic shield
reducing EMI effects and have the best power
density versus size ratio on the market.
Features:
• Large variety of shapes and sizes
• Maximum Power Density
• Ultra Low Profile (as low as 1.0mm in height)
• Dual Winding: Coupled Inductor, SEPIC,
Flyback Transformer, 1:1 Isolation Transformer
• High current
• Magnetic Shielding, Reduced EMI
• Compact Footprint
Standard Product Families:
Shielded Drum:
DR, DRQ, DR124, DR1030, DR1040,
DR1050, LDS0705.
Low Profile Shielded Drum:
SD, SDQ, SD3110, SD3112, SD3114, SD3118,
SD52, SD53, SD38, SDH3812, SD6020,
SD6030, SD7030, SD8328, SD8350.

High Current Inductors
The Cooper Coiltronics® brand high current
inductor product lines provide an optimal mix
of innovative packaging, high efficiency and
unbeatable reliability.
Features:
• Large variety of shapes and sizes
• Low profile (as low as 3mm)
• Low DCR, High Efficiency
• Designed for High Current, Low Voltage
Applications
• Foil construction adds higher reliability factor
than traditional magnet wire used for higher
frequency circuits
• Gapped Ferrite: Maximum Efficiency,
Low core loss
• High Temperature Powder Iron: 155°C
Maximum Temperature Operation, Organic
Binder Eliminates Thermal Aging
Standard Product Families:
HC1, HC2LP, HC3, HC7, HC8,
HC8LP, HC9, HCP0703, HCP1104,
HCP1305, HCPT1309, HCF1305,
FLAT-PAC™(FP2), FLAT-PAC™ (FP3),
FLAT-PAC™ 4, (FP4), CPL.

Unshielded Drum Core Inductors

Transformers

Cooper Coiltronics® brand magnetics offer a
wide variety of unshielded drum core inductors
in different shapes and sizes to fit all board
space constraints.

Cooper Coiltronics® brand magnetics also offer
a variety of standard transformers that increase
versatility in design needs.

Features:
• Multiple sizes available
• Miniature Surface Mount Design
• Low Profile
• Small Footprint
• Ferrite Core Material
Standard Product Families:
UNI-PAC™ (UP1B, 2B, 3B, 4B),
UNI-PAC™ 0.4C (UP0.4C),
UNI-PAC™ 2.8B (UP2.8B),
UNI-PAC™ 2C (UP2C), LD.

Features:
• Multi-configurable transformer/Inductors
• Variety Of Sizes
• Multi-configurable Power Over Ethernet/PD
Flyback and Forward Transformers
• Cold Cathode Fluorescent Lamp (CCFL)
Transformers
Standard Product Families:
VERSA-PAC® (VP),
VERSA-PAC® High Inductance (VPH),
Power Over Ethernet/ PD Configurable
Transformer (PoE) Flyback and Forward,
Cold Cathode Fluorescent Lamp (CCFL)

Toroid Inductors
The Cooper Coiltronics® brand magnetics also
offer a mixture of toroid constructed inductors
available in surface mount, through hole, and
dual winding platforms.
Features:
• Surface Mount and Through-Hole Mounting
• Maximum Power Density
• Dual Winding: Coupled Inductor, SEPIC,
Flyback Transformer, 1:1 Isolation Transformer
• Low EMI
• Variety Of Core Materials: Powder Iron, MPP,
Gapped Ferrite, Amorphous

Custom Magnetics
Cooper Coiltronics® brand magnetics can be
customized to meet your application needs.
We specialize in designing product to specific
requirements and new technology, as well as
modifying our standard product platforms to
meet your requirements.

Standard Product Families:
ECONO-PAC™, OCTA-PAC®, ™, OCTA-PAC®
Plus, MICRO-PAC™, , MICRO-PAC™ Plus,
Low Cost Power Inductors (LCPI), Current
Sense (CS).

Common-Mode Inductors
Cooper Coiltronics® brand magnetics also offer
a variety of surface mount and through hole
inductors specifically for common-mode
circuits.
Features:
• Variety Of Sizes
• Surface mount and through hole packages
• Wide inductance offering
• Ferrite core material
Standard Product Families:
Common Mode Inductor SMT (CMS),
Common Mode Inductor THT (CMT)

Modifications to standard products are available.
All surface mount components are available in
tape-and-reel packaging for pick-and-place utilization.

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The Cooper PowerStor® family of aerogel capacitors offers ultra-low
resistance supercapacitors, unique high-energy storage devices.
RoHS
2002/95/EC

Supercapacitors Extend Battery Life
The Cooper PowerStor® A series supercapacitors are available in
values from 0.47F to 4.7F, 2.5V and offer equivalent series resistance
as low as 25mΩ. In remote battery powered applications that have
pulse current loads this low ESR can be utilized to prolong battery
life.
Low cost battery solutions tend to have high ESR and as a result large amounts of stored energy can’t
be used when supplying pulse currents. By combining a supercapacitor in parallel with the battery the
overall ESR is lowered and battery life, typically, increased by 300%. For remote applications such as
utility meters, weather & river level monitoring and hotel door locks this can dramatically reduce
replacement costs.

Offering Environmentally Friendly Alternative to Ni-CD Batteries
The Cooper PowerStor® B series is available in values from 0.22F to 50F,
2.5V and is fully compliant with the EC RoHS directive. For equipment that
is only required for short term use, up to several minutes, and has a local
charger the B series offers a realistic alternative to Ni-CD batteries.
Low equivalent series resistance allows the B series parts to be rapidly charged and discharged
without damage and low leakage current means they can hold their charge for weeks. Unlike batteries
PowerStor® supercapacitors have a very long cycle life, over 500,000 cycles, so they won’t need
replacing and at end of life there are no recycling or disposal issues.

Supercapacitors Provide Last Gasp Power
The Cooper PowerStor® P series is available in values from 0.1F to 1.0F,
5V and is ideal for hold-up and bridging power applications. For telecom
products such ADSL routers a P series supercapacitor can be used to
provide power for a ‘leaving network’ signal after a mains supply failure.
Unlike batteries the P series supercapacitors have a long cycle life, over 500,000 cycles, so they won’t
need replacing. In addition to this they have ESR as low as 0.2 Ohms and small package sizes from
0.75 cm3 to 4.7 cm3. All this makes the P series an ideal choice for supporting continued operation
during battery swap-out or for controlled shut down after a mains failure.

Providing Power Management Solutions
In addition to a broad range of standard products Cooper PowerStor®
also offer custom solutions for applications such as automated meter
reading, PCMCIA cards, handheld electronics, data storage systems
and toys.
These products include high integrity capacitor packs that incorporate
active voltage balancing, ultra thin ‘Flat Pack’ devices with low ESR
and optimized cylindrical components that meet specific customer
requirements.

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2007 Electronic Components

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CIRCUIT PROTECTION

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Overcurrent
Protection Group

TABLE OF CONTENTS
Fuse Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-3

Printed Circuit Board Fuses
Surface Mount Fuses
0603FA Chip™ Fuses
3216TD Chip™ Fuses
3216FF Chip™ Fuses
3216LV Chip™ Fuses
6125TD Brick™ Fuses
6125FF Brick™ Fuses
6125FA Brick™ Fuses
1025TD Brick™ Fuses
1025FA Brick™ Fuses
TCP™ Series Telecom

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-16
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-18
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-20
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-22
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-24
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-26
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-28
Circuit Protector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-30

Axial and Radial Leaded Fuses
MCRW Series Subminiature Microtron® Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-34
MCRS Series Subminiature Microtron® Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-36
PC-Tron® Series PCB Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-38
SR-5 Series Subminiature Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-40
SS-5 Series Subminiature Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-42
SR-5F Series Subminiature Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-44
SS-5F Series Subminiature Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-46
SR-5H Series Subminiature Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-48

Traditional Ferrule Fuses
Ferrule Type Fuses
C515 Series 5mm x 15mm Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-50
C517 Series 5mm x 15mm Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-52
C518 Series 5mm x 15mm Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-54
C519 Series 5mm x 15mm Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-56
C520 Series 5mm x 15mm Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-58
S500 Series 5mm x 20mm Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-60
S501 Series 5mm x 20mm Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-62
S505 Series 5mm x 20mm Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-64
S506 Series 5mm x 20mm Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-66
GMA Series 5mm x 20mm Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-68
GMC Series 5mm x 20mm Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-70
GMD Series 5mm x 20mm Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-72
AGA Series 1/4" x 5/8" Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-74
AGX Series 1/4" x 1" Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-76
TDC Series 1/4" x 1-1/4" Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-78
ABC Series 1/4" x 1-1/4" Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-80
AGC Series 1/4" x 1-1/4" Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-82
GBB Series 1/4" x 1-1/4" Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-84
OC-1

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Overcurrent
Protection Group

Ferrule Type Fuses (Cont.)
MDA Series 1/4" x 1-1/4" Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-86
MDL Series 1/4" x 1-1/4" Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-88
MDQ Series 1/4" x 1-1/4" Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-90

Automotive Fuses
Blade Fuses
ATM Series Blade-Type Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-92
ATC Series Blade-Type Automotive Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-93
MAX Series Blade-Type Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-94

Accessories
Fuseclips
5mm Diameter Fuseclips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-95
1/4" Diameter Fuseclips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-96
Fuseholders
HTC PCB Series 5mm x 20mm Fuseholders . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-97
HTC PM Series 5mm x 20mm Fuseholders . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-98
HB PCB Series 1/4" x 1-1/4" Fuseholders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-99
HKP PM Series 1/4" x 1-1/4" Fuseholders . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-100
HTB PM Series Fuseholders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-102
HHB In-Line Series 1/4" x 7/8" to 1-1/4" Fuseholders . . . . . . . . . . . . . . . . . . . . .OC-104
HFB In-Line Waterproof Series 1/4" x 1-1/4" Fuseholders . . . . . . . . . . . . . . . . .OC-105
HFA In-Line Waterproof Series 1/4" x 1-1/4" Fuseholders . . . . . . . . . . . . . . . . .OC-106
HRK Universal In-Line Series 1/4" x 7/8" to 1-1/4" Fuseholders . . . . . . . . . . . . .OC-107
MINI® Fuseholders (HHL & HHM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-108
ATC® Fuseholders (HHC, HHD, HHF, HHG) . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-109
MAXI® Fuseholders (HHX) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-110
Fuseblocks
HTC Series 5mm x 20mm Fuseblocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-111
S-8000 Series 1/4" x 1-1/4" Fuseblocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-112

Overvoltage Protection
PolySurg™ ESD Suppressors
ESD Suppression Selection Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-114
0402ESDA-MLP, MLP Series ESD Suppressor . . . . . . . . . . . . . . . . . . . . . . . . . .OC-118
0603ESDA-MLP, MLP Series ESD Suppressor . . . . . . . . . . . . . . . . . . . . . . . . . .OC-120
0603ESDA-TR, TR Series ESD Suppressor . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-122
Application Notes, ESD Suppression
ESD Protection of Set Top Appliances with PolySurg™ ESD Suppressors . . . . . . .OC-125
ESD Protection of High-Speed Data Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OC-127
ESD Protection for High Speed Digital Video Solutions (DVI & HDMI) . . . . . . . . . . .OC-129

OC-2

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FUSE TECHNOLOGY
This fuse technology guide will discuss basic fuse
operating, application, and selection criteria concepts.
The intended purpose of this section is to aid
designers with the operation and characteristics of
an overcurrent protection device and to assist in
device selection.

•

Ambient temperature

•

Overload conditions and opening times

•

Available short circuit current

•

Melting Integral (I2t)

•

Pulse and In-rush characteristics

•

Characteristics of equipment or components
to be protected

•

Physical size and available board space

•

Standards requirements

Fuse Technology

Overcurrent
Protection Group

Overcurrent fuses serve two main purposes:
a.

b.

To protect components, equipment and
people from risk of fire and shock caused
by overcurrents.
To isolate sub systems from the main
system once a fault has occurred.

Overcurrents
Voltage Ratings
Overcurrents exist when the normal load for a circuit is
exceeded. It can either be an overload or short circuit
condition.
An overload condition is any current flowing within the
circuit path that is higher than the circuit’s normal full
load current. An overload is typically 2 to 5 times the
magnitude of a circuit’s normal operating current.
A short circuit is an overcurrent condition that leaves
the normal current path and which greatly exceeds the
normal full load current of the circuit by a factor of tens,
hundreds, or thousands. Components and equipment
can be damaged by both types of overcurrents.
Selecting Overcurrent Protection
During normal load conditions, the fuse must carry the
normal operating current of the circuit without nuisance
openings. However, when an overcurrent occurs
the fuse must interrupt the overcurrent and withstand
the voltage across the fuse after internal arcing.
To properly select a fuse the following items must
be considered:
•

Voltage rating (ac or dc voltage)

•

Current rating

•

Normal operating current

The voltage rating of the fuse must be greater than or
equal to the maximum open circuit voltage. Because
the fuse has such low resistance, the voltage rating
becomes critical only when the fuse is trying to open.
The fuse must be able to open quickly, extinguish the
arc after the fuse element has melted and prevent the
system’s open-circuit voltage from re-striking across
the open fuse element.
Current Ratings
The current rating of a fuse identifies its currentcarrying capacity based on a controlled set of test
conditions. Each fuse is marked with its current rating.
This rating can be identified with a numeric, alpha, or
color code mark. Marking codes can be found in each
product’s data sheet.
Normal Operating Current
The normal operating current of a circuit is the level
of current drawn (in RMS or dc amperes) after it has
been energized and is operating under normal
conditions. An operating current of 80% or less of
rated current is recommended for operation at 25°C
to avoid nuisance openings. For example, a fuse with
a current rating of 1A is usually not recommended in
circuits with normal operating currents of more than
800mA. Further derating is required at elevated
ambient temperatures.

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Fuse Technology

Overcurrent
Protection Group
Ambient Temperature
Ambient temperature is the temperature of the
air immediately surrounding the fuse and is not
necessarily room temperature. All electrical
characteristics of a fuse are rated and validated at an
ambient temperature of 25°C. Both higher and lower
ambient temperatures will affect the fuse’s opening
and current carrying characteristics. This effect is
demonstrated in temperature re-rating curves. Please
refer to the re-rating curves for individual product
series found in the Engineering Product Specifications
located on the Cooper Electronic Technologies web
site, or contact CET directly for technical assistance.
Overload Conditions and Opening Times
Specific attention must be given to first overload
operating points. For fuses, the first overload point is
usually between 200% to 300% of rated current. 400%
is typically the first overload point for circuit protectors.
Breaking Capacity / Interrupting Rating
A fuse must be able to open the circuit under a short
circuit condition without endangering its surroundings.
The breaking capacity or interrupting rating of a
protective device is the maximum available current, at
rated voltage, that the device can safely open without
rupturing. The breaking capacity or interrupting rating
of a fuse must be equal to or greater than the available
short circuit current of the circuit.

Melting Integral
The melting integral of a fuse, termed melting I2t, is
the thermal energy required to melt a specific fuse
element. The construction, materials, and cross
sectional area of the fuse element will determine this
value. Each fuse series and ampere rating utilize
different materials and element configurations, and
therefore it is necessary to determine the I2t value for
each fuse. Tests to determine the I2t of a fuse are

usually performed with a fault current of at least 10x
the rated current with a time constant of less than 50
microseconds in a DC test circuit. High-speed
oscilloscopes and integral programs are used to
measure very accurate I2t values.
The melting I2t of a fuse is one of the values used to
assist circuit designers when selecting and properly
sizing a fuse in a specific application. It can be
compared to the thermal energy created by transient
surge currents in a circuit.
Surge and Pulse Current Characteristics
Transient surge or pulse currents are used to describe
wave shapes that result from any startup, inrush,
surge, or transient currents in a circuit. The pulse
currents are normal for some applications. It is
therefore important to size the fuse properly to allow
these pulses to pass without nuisance openings or
degradation of the fuse element. The fuse must then
open within the limits specified by UL and CSA if the
overload condition continues. The ability to resist
surges is a function of the fuse design and/or
classification relative to the surge pulse, duration
frequency etc.
Pulse currents can produce thermal energy that may
not be large enough to open the fuse but could
possibly cause element fatigue and decrease the life
of the fuse. To properly size a fuse and determine its
surge withstand capability, the circuit’s pulse energy
should be determined and compared to the time
current curve and I2t rating of the fuse. The fuse’s
melting I2t value must be greater than or equal to the
pulse I2t multiplied by a pulse factor.
The peak current and decay time define the pulse
current characteristic or waveform. Pulses can
generate different waveform shapes, which determines
the formula used to calculate the pulse energy or I2t.
Refer to Table 1 to select the appropriate waveform
and its corresponding pulse I2t calculation.

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Table 1. Pulse Waveshapes and I2t Calculations

Fuse Surge Withstand Capability
The fuse’s capability to withstand a surge pulse without
causing thermal stress to the fuse element, which may
result in nuisance openings, can be determined once
the circuit’s pulse I2t is calculated. The circuit designer
needs to properly size the fuse so that the fuse’s
melting I2t value is greater than or equal to the pulse I2t
multiplied by a pulse factor Fp (I2tfuse ≥ I2tpulse x Fp).
The pulse factor is dependent on the construction
of the fuse element. A wire-in-air constructed fuse
element (ferrule fuses, 6125 and 1025 series for
example) will be affected by the number and frequency
of surge pulses the fuse is subjected to over the
lifetime of the device. This construction design utilizes
low-melting-point metals plated or deposited on the
main element material to cause an “M” effect. If the
fuse is sized improperly, low level pulse currents may
cause the low-melting-point metals to alloy to the
element without completely opening the element.

Fuse Technology

Overcurrent
Protection Group

A series of pulse currents will eventually create
enough heat to shift resistance or even permanently
open the fuse. Thus it is important to take into account
the number of pulse currents to which the fuse will be
subjected.
Solid matrix fuses (for example 0603FA or 3216FF
sized surface mount fuses) do not currently use an “M”
effect for the element construction. The element will
only then be affected by the thermal energy of each
pulse, and will not normally degrade as a result of
the number or frequency of pulses. Please refer to
Table 2 to determine the pulse factor, Fp.
For example, a pulse current with an I2t of 0.0823 and
a pulse factor, Fp=1.25 would require the selection of
a fuse to have a melting I2t greater than or equal to
0.1029.
Melting I2tfuse ≥ I2tpulse x Fp
Melting I2tfuse ≥ 0.0823 x 1.25
Melting I2tfuse ≥ 0.1029

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Fuse Technology

Overcurrent
Protection Group
It is important to note that the melting I2t values of the
fuse and pulse current that are compared must be
calculated or tested at the same test conditions, most
importantly the magnitude of the peak current must be
the same. For example, if the pulse’s peak current is
15A, then the fuse’s melting I2t must be calculated at
15A as well to fully understand its electrical
characteristics at that magnitude of current. Please
contact CET directly for technical assistance.
Table 2. Pulse Factor, Fp

Fuse Resistance
In most applications, the voltage drop across the fuse
due to its internal and contact resistance is negligible.
There are, however, certain critical applications where
the fuse resistance must be considered and it is
important that the circuit designer understands the
fuse characteristics in order to select the proper fuse.
Applications that are powered by low voltage batteries,
typically 3V or less, and utilize fractional rated fuses
with high resistance may require special attention be
given to the voltage drop across the fuse.

Solid Matrix Construction
Number of
Surge Pulses
1 to 100,000

Physical Sizes
Pulse Factor, Fp
1.25

Wire-in-Air Construction
Number of
Surge Pulses
100
1,000
10,000
100,000

Pulse Factor, Fp
2.1
2.6
3.4
4.5

Time vs. Current Curves
A time current curve represents the relationship
between a fuse’s melting or clearing time and the
magnitude of RMS or dc current. The characteristics
represented on most published graphs usually indicate
a fuse’s average melting time when subjected to a
certain level of current. The curves will typically
demonstrate the ability to carry 100% of rated current,
and then also represent the fuse’s ability to open within
the maximum opening time at designated overload
points (typically 135% to 300% of the fuse rating).
Time vs. current curves are a useful design aid for
an engineer when specifying a fuse type or rating for
an application. It is however recommended that fuse
samples be tested in the actual application to verify
performance.

There are numerous physical sizes of electronic fuses,
including subminiature fuses. The most common ferrule designs are 5x15mm, 5x20mm and 6.3x32mm
(1/4” x 1 1/4”).
Subminiature fuses are often used when board space
is limited. For applications of this type, there are
through-hole and surface mount devices available.
Standard package sizes for surface mount fuses are
0402 (1005), 0603 (1608), 1206 (3216), 6125, and
1025. These sizes are standard throughout the electronic industry. Through-hole axial and radial leaded
products allow fuses to be PCB mounted. Standard
ferrule fuses fitted with leads can also be mounted in
this way.
Physical Sizes of Traditional Ferrule Fuses
5mmx20mm
1AG
2AG (5mmx15mm)
3AG
4AG
5AG
7AG
8AG

0.2" x .79"
1/4" x 5/8"
0.2" x .59"
1/4" x 1 1/4"
9/32" x 1 1/4"
13/32" x 1 1/2"
1/4" x 7/8"
1/4" x 1"

Standards
North American UL/CSA and IEC standards require
significantly different time vs. current characteristics for
overcurrent devices.

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Typically the physical dimensions and materials used
are similar; however, fuses built to different standards
are not interchangeable because their element melting
and opening times will differ when subjected to the
same magnitude of current. It is therefore important for
the circuit designer to consider that world standards
may require different fuses.

Glossary of Terms
Ampere squared seconds I2t
The melting, arcing, or clearing integral of a fuse,
termed I2t, is the thermal energy required to melt, arc,
or clear a specific current. It can be expressed as
melting I2t, arcing I2t or the sum of them, clearing I2t.
Arcing time
The amount of time from the instant the fuse link has
melted until the overcurrent is interrupted, or cleared.
Clearing time
The total time between the beginning of the overcurrent and the final opening of the circuit at rated voltage
by an overcurrent protective device. Clearing time is
the total of the melting time and the arcing time.
Fast acting fuse
A fuse which opens on overload and short circuits very
quickly. This type of fuse is not designed to withstand
temporary overload currents associated with some
electrical loads. UL listed or recognized fast acting
fuses would typically open within 5 seconds maximum
when subjected to 200% to 250% of its rated current.
IEC has two categories of fast acting fuses:
• F = quick acting, opens 10x rated current within
0.001 seconds to 0.01 seconds
• FF = very quick acting, opens 10x rated current in
less than 0.001 seconds
Fuse
An overcurrent protective device with a fusible link that
operates and permanently opens the circuit on an
overcurrent condition.

Overload
Can be classified as an overcurrent which exceeds the
normal full load current of a circuit by 2 to 5 times its
magnitude and stays within the normal current path.

Fuse Technology

Overcurrent
Protection Group

Resistive load
An electrical load which is characterized by not drawing any significant inrush current. When a resistive
load is energized, the current rises instantly to its
steady state value, without first rising to a higher value.
RMS Current
The R.M.S. (root mean square) value of any periodic
current is equal to the value of the direct current which,
flowing through a resistance, produces the same heating effect in the resistance as the periodic current
does.
Short circuit
An overcurrent that leaves the normal current path and
greatly exceeds the normal full load current of the circuit by a factor of tens, hundreds, or thousands times.
Time delay fuse
A fuse with a built-in time delay that allows temporary
and harmless inrush currents to pass without operating, but is so designed to open on sustained overloads
and short circuits. UL listed or recognized time delay
fuses typically open in 2 minutes maximum when subjected to 200% to 250% of rated current. IEC has two
categories of time delay fuses:
• T = time lag, opens 10x rated current within 0.01
seconds to 0.1 seconds
• TT = long time lag, opens 10x rated current within
0.1 seconds to 1 second
Voltage rating
A maximum open circuit voltage in which a fuse can be
used, yet safely interrupt an overcurrent. Exceeding the
voltage rating of a fuse impairs its ability to clear an
overload or short circuit safely.

Overcurrent
A condition which exists in an electrical circuit when
the normal load current is exceeded. Overcurrents take
on two separate characteristics-overloads and short
circuits.

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Fuse Technology

Overcurrent
Protection Group
Selection Guide
The following is a quick selection guide to assist in selecting the appropriate product series for your application.
Please refer to the corresponding catalog pages for a complete listing of product specifications.

Product
Series

Chip Fuses
Electrical
Characteristic

Voltage
Rating
32 VDC
24 VDC
32 VAC, 63 VDC
32 VAC, 32 VDC
63 VAC, 63 VDC
32 VAC, 32 VDC

Amp
Rating
250mA - 2A
2.5A-5A
250mA-3A
4A-7A
1A
1.5A-12A

3216LV

125 VAC/DC

250mA-1.5A

Product
Series

Voltage
Rating

Amp
Rating

6125TD

125VAC, 60VDC

250mA-7A

Time Delay

6125FF

125VAC, 72VDC

375mA-15A

Fast Acting

6125FA

125VAC, 125VDC
125VAC, 86VDC
86VDC

250mA-7A
10A-12A
15A

Fast Acting

1025TD

250AC, 125VDC

250mA-5A

Time Delay

1025FA

250VAC, 125VDC

250mA-15A

Fast Acting

Product
Series

Voltage
Rating

Amp
Rating

TCP

250VAC

500mA-2A

0603FA
3216FF
3216TD

Fast Acting
Fast Acting
Time Delay
Fast Acting

Brick Fuses
Electrical
Characteristic

Size
1.6mmx0.8mm
(.060"x.030")
3.2mmx1.6mm
(.120"x.060")
3.2mmx1.6mm
(.120"x.060")
3.2mmx1.6mm
(.120"x.060")

Size
6.1mmx2.5mm
(0.24"x0.1")
6.1mmx2.5mm
(0.24"x0.1")
6.1mmx2.5mm
(0.24"x0.1")
10.1mmx2.5mm
(0.4"x0.1")
10.1mmx2.5mm
(0.4"x0.1")

Telecom Fuses
Electrical
Size
Characteristic
Time Delay for
10.1mmx2.5mm
Telecom Applications
(0.4"x0.1")

Mounting
Method

3rd Party
Testing

Surface Mount

UL/CSA

Surface Mount

UL/CSA

Surface Mount

cRUus

Surface Mount

UL/CSA

Mounting
Method

3rd Party
Testing

Surface Mount

UL/CSA

Surface Mount

cRUus

Surface Mount

UL/CSA

Surface Mount

UL/CSA

Surface Mount

UL/CSA

Mounting
Method

3rd Party
Testing

Surface Mount

UL/CSA

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Product
Series

Voltage
Rating

MCRW

125VAC, 125VDC

MCRS

125VAC, 125VDC

PC-Tron

250VAC, 450VDC
250VAC, 350VDC
125VAC, 250VDC

SR-5

250VAC

SS-5

250VAC

SR-5F
SS-5F
SR-5H

250VAC
125VAC
250VAC
125VAC
300VAC
250VAC

Traditional Subminiature Fuses
Electrical
Size
Characteristic
Fast Acting,
7.1mmx3.18mm
1/10A-15A
Wire in Air
(.280"x.125")
Slow Blow,
7.1mmx3.18mm
250MA-7A
Wire in Air
(.280"x.125")
500mA-2.5A
Fast Acting,
8.89mmx8.89mm
3A
Solid Matrix
(.35"x.35")
5A
8.35mmx7.7mm
500mA-6.3A
Time Delay
(.33"x.3")
8.6mmx8.4mm
500mA-6.3A
Time Delay
(.34"x.33")
800mA-5A
8.35mmx7.7mm
Fast Acting
6.3A-10A
(.33"x.3")
800mA-5A
8.6mmx8.4mm
Fast Acting
6.3A-10A
(.34"x.33")
8.35mmx8.6mm
1A-6.3A
Time Delay
(.33"x.34")
Amp
Rating

Product
Series

Voltage
Rating

Amp
Rating

AGA

125VAC, 32VAC

63mA-30A

AGA-V

125VAC, 32VAC

63mA-30A

AGX
AGX-V

250VAC, 125VAC,
32VAC
250VAC, 125VAC,
32VAC

1/500mA-30A
1/500mA-30A

ABC

250VAC, 125VAC

1/4A-30A

ABC-V

250VAC, 125VAC

1/4A-30A

AGC

250VAC, 32VAC

1/20A-30A

AGC-V

250VAC, 32VAC

1/20A-30A

GBB

250VAC

1A-30A

GBB-V

250VAC

1A-30A

MDA

250VAC

2/10A-30A

MDA-V

250VAC

2/10A-30A

MDL

250VAC, 32VAC

1/16A-30A

MDL-V

250VAC, 32VAC

1/16A-30A

MDQ

250VAC

1/100A-15A

MDQ-V

250VAC

1/100A-15A

1/4" Diameter Ferrule Fuses
Electrical
Size
Characteristic
6.3mmx15.9mm
Fast Acting
(1/4"x5/8")
6.3mmx15.9mm
Fast Acting
(1/4"x5/8")
6.3mmx25.4mm
Fast Acting
(1/4"x1")
6.3mmx25.4mm
Fast Acting
(1/4"x1")
6.3mmx32mm
Fast Acting
(1/4"x1-1/4")
6.3mmx32mm
Fast Acting
(1/4"x1-1/4")
6.3mmx32mm
Fast Acting
(1/4"x1-1/4")
6.3mmx32mm
Fast Acting
(1/4"x1-1/4")
6.3mmx32mm
Very Fast Acting
(1/4"x1-1/4")
6.3mmx32mm
Very Fast Acting
(1/4"x1-1/4")
6.3mmx32mm
Time Delay
(1/4"x1-1/4")
6.3mmx32mm
Time Delay
(1/4"x1-1/4")
6.3mmx32mm
Time Delay
(1/4"x1-1/4")
6.3mmx32mm
Time Delay
(1/4"x1-1/4")
Dual Element
6.3mmx32mm
Time Delay
(1/4"x1-1/4")
Dual Element
6.3mmx32mm
Time Delay
(1/4"x1-1/4")

Mounting
Method
Axial
Through Hole
Axial
Through Hole
Radial
Through Hole
Radial
Through Hole
Radial
Through Hole
Radial
Through Hole
Radial
Through Hole
Radial
Through Hole

Mounting
Method
Clips, Blocks,
and Holders
Axial
Through Hole
Clips, Blocks,
and Holders
Axial
Through Hole
Clips, Blocks,
and Holders
Axial
Through Hole
Clips, Blocks,
and Holders
Axial
Through Hole
Clips, Blocks,
and Holders
Axial
Through Hole
Clips, Blocks,
and Holders
Axial
Through Hole
Clips, Blocks,
and Holders
Axial
Through Hole
Clips, Blocks,
and Holders
Axial
Through Hole

Fuse Technology

Overcurrent
Protection Group

3rd Party
Testing
UL/CSA
UL/CSA
UL/CSA
UL/CSA
SEMKO/VDE
UL/CSA
SEMKO/VDE
UL/CSA
UL/CSA
cURus
SEMKO/VDE

3rd Party
Testing
UL/UR
UL/UR
UL/UR/CSA
UL/UR/CSA
UL/UR/CSA
UL/UR/CSA
UL/UR/CSA
UL/UR/CSA
UR/CSA
UR/CSA
UL/CSA
UL/CSA
UL/UR/CSA
UL/UR/CSA
UL/UR/CSA
UL/UR/CSA

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Fuse Technology

Overcurrent
Protection Group

Product
Series

Voltage
Rating

Amp
Rating

C515

250VAC

125mA-7A

C517

350VAC

3A

C518

250VAC

100mA-5A

C519

250VAC

125mA-5A

C520

250VAC

100mA-5A

Product
Series

Voltage
Rating

Amp
Rating

GMA

250VAC, 125VAC

63mA-15A

GMA-V

250VAC, 125VAC

63mA-15A

GMC

250VAC, 125VAC

50mA-10A

GMC-V

250VAC, 125VAC

50mA-10A

GMD

250VAC

125mA-4A

GMD-V

250VAC

125mA-4A

S500

250VAC

32mA-10A

S500-V

250VAC

32mA-10A

S501

250VAC

50mA-10A

S501-V

250VAC

50mA-10A

S505

250VAC

500mA-12A

S505-V

250VAC

500mA-12A

S506

250VAC

32mA-15A

S506-V

250VAC

32mA-15A

5x15mm Ferrule Fuses
Electrical
Size
Characteristic
5.5mmx15.2mm
Time Delay
(0.22"x0.60")
5.5mmx15.2mm
Fast Acting
(0.22"x0.60")
5.5mmx15.2mm
Fast Acting
(0.22"x0.60")
5.2mmx15mm
Time Delay
(0.20"x0.59")
5.2mmx15mm
Fast Acting
(0.20"x0.59")

Mounting
Method
Axial
Through Hole
Axial
Through Hole
Axial
Through Hole
Clips, Blocks,
and Holders
Clips, Blocks,
and Holders

5x20mm Ferrule Fuses
Electrical
Size
Characteristic
5.2mmx20mm
Fast Acting
(0.20"x0.79")
5.5mmx21.1mm
Fast Acting
(0.22"x0.83")
Medium
5.2mmx20mm
Time Delay
(0.20"x0.79")
Medium
5.5mmx21.1mm
Time Delay
(0.22"x0.83")
5.2mmx20mm
Time Delay
(0.20"x0.79")
5.5mmx21.1mm
Time Delay
(0.22"x0.83")
Fast Acting, Low
5.2mmx20mm
Breaking Capacity
(0.20"x0.79")
Fast Acting, Low
5.5mmx21.1mm
Breaking Capacity
(0.22"x0.83")
Fast Acting, High
5.2mmx20mm
Breaking Capacity
(0.20"x0.79")
Fast Acting, High 5.5mmx21.1mm
Breaking Capacity
(0.22"x0.83")
Time Delay, High 5.5mmx21.1mm
Breaking Capacity
(0.22"x0.83")
Time Delay, High 5.5mmx21.1mm
Breaking Capacity
(0.22"x0.83")
Time Delay, Low
5.2mmx20mm
Breaking Capacity
(0.20"x0.79")
Time Delay, Low
5.5mmx21.1mm
Breaking Capacity
(0.22"x0.83")

Mounting
Method
Clips, Blocks,
and Holders
Axial
Through Hole
Clips, Blocks,
and Holders
Axial
Through Hole
Clips, Blocks,
and Holders
Axial
Through Hole
Clips, Blocks,
and Holders
Axial
Through Hole
Clips, Blocks,
and Holders
Axial
Through Hole
Clips, Blocks,
and Holders
Axial
Through Hole
Clips, Blocks,
and Holders
Axial
Through Hole

3rd Party
Testing
UL/UR/CSA
UL/UR/CSA
UL/CSA
UL/UR/CSA
UL/CSA

3rd Party
Testing
UL/UR/CSA/MITI
UL/UR/CSA/MITI
UL/UR/CSA/MITI
UL/UR/CSA/MITI
UL/UR/CSA/MITI
UL/UR/CSA/MITI
UR/CSA/Semko/
VDE/IMQ/BSI
UR/CSA/Semko/
VDE/IMQ/BSI
UR/Semko/
VDE/IMQ
UR/Semko/
VDE/IMQ
UR/BSI/MITI/
Semko/VDE/IMQ
UR/BSI/MITI/
Semko/VDE/IMQ
UR/BSI/MITI/
Semko/VDE/IMQ
UR/BSI/MITI/
Semko/VDE/IMQ

OC-10

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Fuse Accessory Selection Guide
Fuse

Size

PC Board
Fuse Clip

PC Board Mount
Holder

Panel Mount
Holder

In-Line Fuse
Holder

Fuseblock

HBH-I / HBV-I
HBH-I / HBV-I
HBH-I / HBV-I
HTC-45M / -50M
HTC-45M / -50M
HTC-45M / -50M
HBH-I / HBV-I
HBH-I / HBV-I
HBH-I / HBV-I
PCS
PCS
HTC-45M / -50M
HTC-45M / -50M
HTC-45M / -50M
HTC-45M / -50M
PCS
PCS
PCS
PCS
HTC-45M / -50M
HTC-45M / -50M
-

HTB / HKP
HTB / HKP
HPG
HJL
HPG
HPG
HPS-L
HPG
HPG
HPG
HPG
HPG
HLD
HTB / HKP
HLD
HTB / HTC
HTB / HTC
HTB / HTC
HPG
HPG
HPG
HPS-L
HPG
HTB / HKP
HTB / HKP
HTB / HKP
HPG
HPG
HTB / HTC
HTB / HTC
HTB / HTC
HTB / HTC
HPS-EE
HPS-JJ
HPS-FF
HTB / HKP
HTB / HKP
HJL

HRK / HHB / HFA
HRK / HHB / HFA
HEB
HRK / HHB / HFA
HRK / HHB / HFA
HHD
HHM
HEB
HEB
HEH
HHT
HHT
HEB
HEB
HEB
HEB
HEB
HRK / HHB / HFA
HRK / HHB / HFA
HRK / HHB / HFA
HHT
HHT
HHT
HEB
HEB
HEB
HEH
HEB
HRK / HHB / HFA
HRK / HHB / HFA
HRK / HHB / HFA
HEB
HEB
HHT
HHT
HHT
HHT
HEG
HEH
HEC
HEJ
HRK / HHB / HFA
HRK / HHB / HFA
HRK / HHB / HFA

S-8000
S-8000
BM6031PQ
3828-1
BM6031PQ
BM6031PQ
BM6031PQ
BM6031PQ
BM6031PQ
BM6031PQ
BM6031PQ
BC6031PQ
S-8000
S-8000
S-8000
HTC-15M
HTC-15M
HTC-15M
BM6031PQ
BM6031PQ
BC6031PQ
BM6031PQ
BC6031PQ
S-8000
S-8000
S-8000
BM6031PQ
BM6031PQ
HTC-15M
HTC-15M
HTC-15M
HTC-15M
BG3011PQ
BG3021PQ
BG3031PQ
G30060-1CR
S-8000
S-8000
3828-1

Fuse Technology

Overcurrent
Protection Group

(Qty. 2)

ABC
AGA
AGC
AGU
AGW
AGX
ATC
ATM
BAF
BAN
BBS
C519
C520
DCM
FNA
FNM
FNQ
FNQ-R
FWH
GBA
GBB
GLD
GMA
GMC
GMD
KLM
KTK
KTK-R
KTQ
LP-CC
MDA
MDL
MDQ
MIC
MIN
PCB
PCD
S500 / GDB
S501 / GDA
S505
S506 / GDC
SC-1 to 15
SC-20
SC-25 to 30
SC-35 to 60
SR-5
SR-5F
SS-5
SS-5F
TDC10
TDC11
TDC180

1/4" x 1-1/4"
1/4" x 5/8"
1/4" x 1-1/4"
13/32" x 1-1/2"
1/4" x 7/8"
1/4" x 1"
13/32" x 1-1/2"
13/32" x 1-1/2"
13/32" x 1-3/8"
5mm x 15mm
5mm x 15mm
13/32" x 1-1/2"
13/32" x 1-1/2"
13/32" x 1-1/2"
13/32" x 1-1/2"
13/32" x 1-1/2"
1/4" x 1-1/4"
1/4" x 1-1/4"
1/4" x 1-1/4"
1/4" x 1-1/4"
5mm x 20mm
5mm x 20mm
5mm x 20mm
13/32" x 1-1/2"
13/32" x 1-1/2"
13/32" x 1-1/2"
13/32" x 1-3/8"
13/32" x 1-1/2"
1/4" x 1-1/4"
1/4" x 1-1/4"
1/4" x 1-1/4"
13/32" x 1-1/2"
13/32" x 1-1/2"
5mm x 20mm
5mm x 20mm
5mm x 20mm
5mm x 20mm
13/32" x 1.31"
13/32" x 1.41"
13/32" x 1.63"
13/32" x 2-1/4"
1/4" x 1-1/4"
1/4" x 1-1/4"
1/4" x 1"

1A1907
1A1907
1A1907
1A3400
1A1907
1A1907
1A5600
1A5778
1A3400
1A3400
1A3400
1A3399
1A3399
1A3400
1A3400
1A3400
1A3400
1A3400
1A1907
1A1907
1A1907
1A1907
1A3399
1A3399
1A3399
1A3400
1A3400
1A3400
1A3400
1A3400
1A1907
1A1907
1A1907
1A3400
1A3400
1A3399
1A3399
1A3399
1A3399
1A3400
1A3400
1A3400
1A3400
1A1907
1A1907
1A1907

OC-11

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Chip™ Fuses
0603FA Series, Fast Acting

Printed Circuit Board Fuses - Surface Mount

Description
• Rapid interruption of excessive current
• Compatible with reflow and wave solder
• Rugged ceramic and glass construction
• Excellent environmental integrity
• One time positive disconnect
• Compatible with lead free solders and higher
temperature profiles

RoHS
2002/95/EC

ELECTRICAL CHARACTERISTICS
% of Amp Rating
Opening Time
100%
4 Hours Minimum
200%
60 Seconds Maximum

Agency Information
• UL Recognition Guide & File numbers:
JDYX2 &E19180
• CSA Component Acceptance: 053787 C 000 &
Class Number: 1422 30
Environmental Data
• Life Test: MIL-STD-202, Method 108A
• Load Humidity Test: MIL-STD-202, Method 103B
• Moisture Resistance Test: MIL-STD-202, Method 106E
• Terminal Strength Test: Downward force is applied to
cause a 1mm deflection for 1 minute
• Thermal Shock Test: MIL-STD-202, Method 107D
• Solderability: ANSI/J-STD-002
• Mechanical Shock Test: MIL-STD-202, Method 213B
• High Frequency Vibration Test: MIL-STD-202,
Method 204D
• Resistance to Solvents Test: MIL-STD-202, Method 215A
Ordering
• Specify packaging and product code
(i.e., TR/0603FA250-R)

Dimensions

mm

⁄(inches)

Drawing Not to Scale

Land Pattern

1.25
(0.05)

0.50
(0.02)

0.90
(0.035)

Soldering Method
• Wave Solder: 260°C, 10 sec max.
• Infrared Reflow: 260°C, 30 sec max.

SPECIFICATIONS
Product Code

Current
Rating

0603FA250-R
0603FA375-R
0603FA500-R
0603FA750-R
0603FA1-R
0603FA1.25-R
0603FA1.5-R
0603FA2-R
0603FA2.5-R
0603FA3-R
0603FA3.5-R
0603FA4-R
0603FA5-R

250mA
375mA
500mA
750mA
1A
1.25A
1.5A
2A
2.5A
3A
3.5A
4A
5A

Voltage
Rating
DC
32V
32V
32V
32V
32V
32V
32V
32V
24V
24V
24V
24V
24V

Interrupting
Rating at
Rated Voltage*
50A
50A
50A
50A
50A
35A
35A
35A
35A
35A
35A
35A
35A

DC Cold
Resistance** (ohms)
Typical
3.100
1.250
1.025
0.450
0.150
0.108
0.086
0.051
0.037
0.028
0.022
0.017
0.011

Typical
Melting
I2t***
0.0004
0.0009
0.00193
0.0090
0.0025
0.0130
0.0319
0.0491
0.0625
0.0699
0.1200
0.2430
0.6950

Typical
Voltage
Drop†
0.921
0.605
0.600
0.440
0.211
0.151
0.138
0.116
0.113
0.110
0.103
0.097
0.090

Alpha
Code
Marking‡
D
E
F
G
H
J
K
N
O
P
R
S
T

* DC Interrupting Rating (Measured at designated voltage, time constant of less than 50 microseconds, battery source)
** DC Cold Resistance (Measured at ≤10% of rated current)
*** Typical Melting I2t (Measured with a battery bank at rated DC voltage, 10x-rated current, not to exceed IR, time constant of calibrated circuit less than 50 microseconds) (0603FA4A and 5A measured at interrupting rating)
† Typical Voltage Drop (Measured at rated current after temperature stabilizes)
‡ Alpha code to be marked on the top of fuse body for all ratings
• Device designed to carry rated current for four hours minimum. An operating current of 80% or less of rated current is recommended, with
further derating required at elevated ambient temperatures.

OC-12

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Chip™ Fuses
0603FA Series, Fast Acting
TIME CURRENT CURVE

Printed Circuit Board Fuses - Surface Mount

PACKAGING CODE
Packaging Code
TR

Visit us on the web at:
www.cooperbussmann.com

Description
5,000 pieces of fuses in paper tape and reeled on a 178mm (7 inch) reel per EIA Standard 481-1

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-13

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Chip™ Fuses
3216TD Series, Time Delay

Printed Circuit Board Fuses - Surface Mount

Description
• Protects against harmful overcurrents in secondary
applications
• High inrush withstand capability
• Wire-in-Air performance
• Compatible with leaded and lead-free reflow
and wave solder
ELECTRICAL CHARACTERISTICS
% of Amp Rating
Opening Time
100%
4 Hours Minimum
200%
1 sec. minimum, 120 sec. maximum
300%
0.05 sec. minimum, 3 sec. maximum
800%
0.002 sec. minimum, 0.05 sec. maximum

RoHS
2002/95/EC

Dimensions

mm

⁄(inches)

Drawing Not to Scale
unit: mm(inch)
3.2±0.1
(0.125)

Agency Information
•
Recognition File number: E19180, Volume 13
Environmental Data
• Thermal Shock: Withstands 5 cycles of -55°C & 125°C
• Vibration: MIL-STD-202F, Method 201A, Method 204D
Condition D
• Solderability: ANSI/J-STD-002, Test B
Ordering
• Specify packaging and product code
(i.e. TR/3216TD1-R)
Soldering Method
• Wave Immersion: 260°C, 10 sec max.
• Infrared Reflow: 260°C, 30 sec max.
• Hand Solder: 350°C, 3 sec max.

5A

1.6±0.1
(0.063)

1.0±0.1
(0.038)
th. 0.1mm

0.4±0.1

1.0±0.05

Land Pattern

SPECIFICATIONS
Product Code

Current
Rating

3216TD1-R
3216TD1.5-R
3216TD2-R
3216TD2.5-R
3216TD3-R
3216TD4-R
3216TD5-R
3216TD6.3-R
3216TD7-R
3216TD10-R
3216TD12-R

1A
1.5A
2A
2.5A
3A
4A
5A
6.3A
7A
10A
12A

Voltage
Rating
AC
63 V
32 V
32 V
32 V
32 V
32 V
32 V
32 V
32 V
32 V
32 V

DC
63 V
32 V
32 V
32 V
32 V
32 V
32 V
32 V
32 V
32 V
32 V

Interrupting
Rating*
AC/DC
50 A
35 A
35 A
35 A
35 A
35 A
35 A
35 A
35 A
35 A
35 A

Resistance
(ohms)**
Typ.
0.075
0.050
0.030
0.022
0.018
0.0165
0.015
0.0120
0.0095
0.006
0.005

Typical
Melt I2t†
DC
0.32
0.62
1.30
2.25
3.30
5.20
8.40
13.8
16.9
54.4
64.0

Typical
Voltage
Drop (V)‡
75
75
60
55
55
56
66
75
67
65
65

* AC Interrupting Rating (Measured at rated voltage with a unity power factor); DC Interrupting Rating (Measured at rated voltage, time constant of less than 50
microseconds, battery source)
** DC Cold Resistance (Measured at 10% of rated current)
† Typical Melting I2t (Measured with a battery bank at rated DC voltage, 10x-rated current at 1 microsecond, not to exceed IR. Above 7a uses 70 micron thickness
copper layer test board of IEC 60127-3. Others uses 35 micron thickness copper layer.
‡ Typical Voltage Drop (Measured at rated current after temperature stabilizes)
Device designed to carry rated current for four hours minimum. An operating current of 80% or less of rated current is recommended, with further derating required at
elevated ambient temperatures.

OC-14

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Chip™ Fuses
3216TD Series, Time Delay
TIME CURRENT CURVE

Printed Circuit Board Fuses - Surface Mount

PACKAGING CODE
Packaging Code
TR

Visit us on the web at:
www.cooperbussmann.com

Description
2,500 pieces of fuses on 12mm tape-and-reel on a 180mm reel per EIA-481-A & IEC286-3

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-15

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Chip™ Fuses
3216FF Series, Fast Acting

Printed Circuit Board Fuses - Surface Mount

Description
• Fast acting surface mount fuse
• Ratings up to 20A
• Excellent temperature and cycling characteristics
• Compatible with reflow and wave solder
Agency Information

RoHS
2002/95/EC

ELECTRICAL CHARACTERISTICS
Ampere Rating % of Amp Rating
Opening Time
250mA - 7A
100%
4 Hours Minimum
1.25A - 3A
200%
60 Seconds Maximum
250mA - 3A
250%
5 Second Maximum
4A - 7A
350%
1 Second Maximum
15A - 20A
350%
5 Second Maximum

Dimensions

⁄(inches)

mm

Drawing Not to Scale

• UL Recognition Guide & File numbers:
JDYX2 & E19180.
• CSA Component Acceptance: 053787 C 000 &
Class No: 1422 30.
•
Recognition File number: E19180 (15A - 20A)
Environmental Data
• Thermal Shock: MIL-STD-202, Method 107,
Test Condition B
• Vibration: MIL-STD-202, Method 204, Test Condition C
• Moisture Resistance: MIL-STD-202, Method 106,
10 day cycle
• Solderability: ANSI/J-STD-002, Test B
Ordering
• Specify packaging and product code
(i.e. TR/3216FF250-R)
Soldering Method
• Wave Immersion: 260°C, 10 sec max.
• Infrared Reflow: 260°C, 30 sec max.

Land Pattern

SPECIFICATIONS
Product Code

Current
Rating

3216FF250-R
3216FF375-R
3216FF500-R
3216FF750-R
3216FF1-R
3216FF1.25-R
3216FF1.5-R
3216FF2-R
3216FF2.5-R
3216FF3-R
3216FF4-R
3216FF4.5-R
3216FF5-R
3216FF6.5-R
3216FF7-R
3216FF15-R
3216FF20-R

250mA
375mA
500mA
750mA
1A
1.25A
1.5A
2A
2.5A
3A
4A
4.5A
5A
6.5A
7A
15A
20A

Voltage
Rating
AC
32 V
32 V
32 V
32 V
32 V
32 V
32 V
32 V
32 V
32 V
32 V
32 V
32 V
32 V
32 V
24 V
24 V

DC
63 V
63 V
63 V
63 V
63 V
63 V
63 V
63 V
63 V
63 V
32 V
32 V
32 V
32 V
32 V
24 V
24 V

Interrupting
Rating*
AC/DC
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
150 A
150 A

Resistance
(ohms)**
Typ.
3.0
1.75
0.98
0.50
0.24
0.135
0.119
0.066
0.046
0.040
0.018
0.016
0.014
0.0082
0.0078
0.0031
0.0018

Typical
Melt I2t†
DC
0.00038
0.00077
0.0019
0.0053
0.030
0.060
0.093
0.126
0.260
0.275
0.337
0.405
0.534
2.294
3.623
25.5
48.6

Typical
Voltage
Drop (V)‡
1.4
0.73
0.66
0.63
0.20
0.19
0.18
0.16
0.14
0.13
0.11
0.10
0.09
0.076
0.078
0.065
0.058

* AC Interrupting Rating (Measured at rated voltage with a unity power factor); DC Interrupting Rating (Measured at rated voltage, time constant of less than 50
microseconds, battery source)
** DC Cold Resistance (Measured at 10% of rated current)
† Typical Melting I2t (Measured with a battery bank at rated DC voltage, 10x-rated current, not to exceed IR, time constant of calibrated circuit less than 50 microseconds) (6.5A & 7A measured at interrupting rating)
‡ Typical Voltage Drop (Measured at rated current after temperature stabilizes)
It is recommended that fuses be mounted with ceramic (white) side facing up.
Device designed to carry rated current for four hours minimum. An operating current of 80% or less of rated current is recommended, with further derating required at
elevated ambient temperatures.

OC-16

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Chip™ Fuses
3216FF Series, Fast Acting
TIME CURRENT CURVE

Printed Circuit Board Fuses - Surface Mount

PACKAGING CODE
Packaging Code
TR

Visit us on the web at:
www.cooperbussmann.com

Description
3,000 pieces of fuses on 8mm tape-and-reel on a 7 inch (178mm) reel per EIA Standard 481

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-17

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Chip™ Fuses
3216LV Series, Fast Acting, Line Voltage
Description
• Surface mount fuse, fast acting, 125 VAC
• Utilize thick and thin metal film technologies for
superior fusing action and enhanced reliability.

RoHS
2002/95/EC

ELECTRICAL CHARACTERISTICS
% of Amp Rating
Opening Time
100%
4 hours minimum
250%
5 seconds maximum

Printed Circuit Board Fuses - Surface Mount

Agency Information
• UL Recognition Guide & File numbers:
JDYX2 & E19180.
• CSA Component Acceptance: 053787 C 000 &
Class No: 1422 30.
Environmental Data
• Operating Temperature Range: -65 to +125°C,
with proper derating
• Thermal Shock: MIL-STD-202, Method 107, Test
Condition B (-65 to 125°C), 1000 cycles, fuses soldered
to FR-4 glass-epoxy circuit board
• Vibration: MIL-STD-202, Method 204, Test Condition C
(55 to 2000 HZ, 10G)
• Solderability: Withstands 60 seconds above 200°C,
260°C maximum
• Moisture Resistance: MIL-STD-202, Method 106,
10 day cycle
• Solder Leach Resistance & Terminal Adhesion:
EIA-576 (30 seconds submersion in 260°C
tin-lead solder)
Ordering
• Specify packaging and product code
(i.e. TR/3216LV1-R)

Dimensions

mm

⁄(inches)

Drawing Not to Scale
3.20 ± 0.2
(0.126 ± 0.008)

.75

1.60 ± 0.2
(0.063 ± 0.008)

0.50 ± 0.25
(0.020 ± 0.010)
0.90 + 0.20, -0.15
(0.035 + 0.008, -0.006)

Land Pattern
2.80

1.80 to
2.00

1.20 to 1.40

1.60

4.20 to 4.40

SPECIFICATIONS
Product Code

Current
Rating

Voltage
Rating
AC/DC

Interrupting
Rating
125V AC/DC

3216LV250-R
3216LV375-R
3216LV500-R
3216LV750-R
3216LV1-R
3216LV1.25-R
3216LV1.5-R

250mA
375mA
500mA
750mA
1A
1.25A
1.5A

125V
125V
125V
125V
125V
125V
125V

50A
50A
50A
50A
50A
50A
50A

Typical Melting
Integral @ 10X Rated
Current (A2 * sec)
AC
DC
.00016
.000084
.001
.0002
.0014
.0019
.0033
.00379
.020
.0084
.035
.021
.038
.024

Typ. Resistance
@ ≤ 10% Rated
Current (Ohms)

Typ. Voltage
Drop @ Rated
Current (Volts)

4.5
1.80
1.15
.75
.52
.40
.26

1.4
.73
.66
.63
.63
.62
.49

Notes:
1. AC interrupting rating, melting integral and total clearing integral measured at 125V, unity power factor
2. DC interrupting rating, melting integral and total clearing integral measured at 125V with a battery source
3. Voltage drop measured at 23 ± 3°C ambient temperature with the device mounted on a suitable circuit board trace
4. It is recommended that fuses be mounted with ceramic (white) side facing up
5. Device designed to carry rated current for four hours minimum. An operating current of 80% or less of rated current is recommended,
with further derating required at elevated ambient temperatures

OC-18

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Chip™ Fuses
3216LV Series, Fast Acting, Line Voltage
375mA
500mA
750mA
1A
1.25A
1.5A

250mA

TIME CURRENT CURVE

CURRENT
RATING

10

Printed Circuit Board Fuses - Surface Mount

TIME IN SECONDS

1

.1

.01

40

10

1

.1

.001
CURRENT IN AMPERES

PACKAGING CODE
Packaging Code
TR

Visit us on the web at:
www.cooperbussmann.com

Description
3,000 pieces of fuses on 8mm tape-and-reel on a 7 inch (178mm) reel per EIA Standard 481

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-19

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Brick™ Fuses
6125TD Series, Time Delay
Description
• Time Delay surface mount fuse
• Complies with EIA-IS-722 Standard
• Solder Immersion Compatible

RoHS
2002/95/EC

Printed Circuit Board Fuses - Surface Mount

ELECTRICAL CHARACTERISTICS
% of Amp Rating
Opening Time
100%
4 Hours Minimum
200%
1 Second Minimum
200%
2-4 Seconds Typical
200%
60 Seconds Maximum

Agency Information
• UL Recognition Guide & File numbers:
JDYX2 & E19180.
• CSA Component Acceptance: 053787 C 000 &
Class No: 1422 30.
Environmental Data
• Life Test: MIL-STD-202, Method 108A, Test Condition D
• Load Humidity: MIL-STD-202, Method 103B
• Moisture Resistance: MIL-STD-202, Method 106E
• Thermal Shock: MIL-STD-202, Method 107D, air-to-air
• Case Resistance: EIA/IS-722
• Resistance to Dissolution of Metallization:
ANSI J-STD-002, Test D
• Mechanical Shock: MIL-STD-202, Method 213B, Test
Condition A
• High Frequency Vibration: MIL-STD-202, Method 204D,
Test Condition D
• Resistance to Solvents: MIL-STD-202, Method 215A
Ordering
• Specify packaging and product code
(i.e., TR1/6125TD500-R)

Dimensions

mm

⁄(inches)

Land Pattern

2.6

3.0

(0.102)

(0.118)

4.0
(0.157)

8.6
(0.338)

Soldering Method
• Wave Immersion: 260°C, 10 sec max.
• Infrared: 260°C, 30 sec max.

SPECIFICATIONS
Product
Code

Current
Rating

6125TD500-R
6125TD750-R
6125TD1-R
6125TD1.5-R
6125TD2-R
6125TD2.5-R
6125TD3-R
6125TD3.5-R
6125TD4-R
6125TD5-R
6125TD7-R

500mA
750mA
1A
1.5A
2A
2.5A
3A
3.5A
4A
5A
7A

Voltage
Rating
AC
DC
125V
60V
125V
60V
125V
60V
125V
60V
125V
60V
125V
60V
125V
60V
125V
60V
125V
60V
125V
60V
125V
60V

Interrupting
Rating*
125VAC 60VDC
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A

Resistance
(ohms)**
Typ.
0.4025
0.2350
0.1680
0.0630
0.0480
0.0350
0.0263
0.0195
0.0185
0.0133
0.0087

Typical
Melting
I2t†
0.716
1.07
2.88
2.35
9.45
16.2
15.3
14.5
38.8
34.4
90.2

Typical
Voltage
Drop‡
245 mV
250 mV
256 mV
125 mV
133 mV
130 mV
97 mV
95 mV
106 mV
100 mV
99 mV

* AC Interrupting Rating (Measured at designated voltage, 100% power factor); DC Interrupting Rating (Measured at designated voltage, time constant of less than
50 microseconds, battery source)
** DC Cold Resistance (Measured at 10% of rated current)
† Typical Melting I2t (Measured with a battery bank at rated DC voltage, 10x-rated current (not to exceed IR), time constant of calibrated circuit less than 50 microseconds)
‡ Typical Voltage Drop (Measured at rated current after temperature stabilizes)
Device designed to carry rated current for four hours minimum. An operating current of 80% or less of rated current is recommended, with further derating required at elevated ambient temperatures.

OC-20

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Brick™ Fuses
6125TD Series, Time Delay
TIME CURRENT CURVE

Printed Circuit Board Fuses - Surface Mount

PACKAGING CODE
Packaging Code
TR1

Visit us on the web at:
www.cooperbussmann.com

Description
1,000 pieces of fuses on 12mm tape-and-reel on a 7 inch (177mm) reel per EIA Standard 481

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-21

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Brick™ Fuses
6125FF Series, Fast Acting
Description
RoHS
2002/95/EC

Printed Circuit Board Fuses - Surface Mount

• Fast Acting Surface Mount Fuse
• Overcurrent protection of systems up to
125VAC/72VDC
• High inrush withstand capability
• Solder immersion compatible
ELECTRICAL CHARACTERISTICS
% of Amp Rating
Opening Time
100%
4 Hours Minimum
200%
5 Second Maximum

Agency Information
•

Dimensions

mm

⁄(inches)

Recognition File number: E19180

Environmental Data
•
•
•
•
•
•
•

Operating Temperature: -55°C to 125°C
Mechanical Shock: MIL-STD-202, Method 213
High Frequency Vibration: MIL-STD-202, Method 204
Load Humidity: MIL-STD-202, Method 103
Moisture Resistance: MIL-STD-202, Method 106
Resistance to Solvents: MIL-STD-202, Method 215
Thermal Shock: MIL-STD-202, Method 107
Land Pattern

Ordering

2.6

3.0

(0.102)

(0.118)

• Specify packaging and product code
(i.e., TR2/6125FF500-R)

4.0
(0.157)

Soldering Method
8.6

• Wave Immersion: 260°C, 10 sec max.
• Infrared: 260°C, 30 sec max.

(0.338)

SPECIFICATIONS
Part
Number
6125FF500-R
6125FF750-R
6125FF1-R
6125FF1.25-R
6125FF1.5-R
6125FF2-R
6125FF2.5-R
6125FF3-R
6125FF3.5-R
6125FF4-R
6125FF5-R
6125FF6.3-R
6125FF7-R
6125FF10-R
6125FF12-R
6125FF15-R

Voltage
Rating
AC
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V

DC
72V
72V
72V
72V
72V
72V
72V
72V
72V
72V
72V
72V
72V
72V
72V
72V

Interrupting
Rating
125V AC
72V DC
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A

DC Cold
Resistance
32V DC (milliohms) Typ.
300A
1130
300A
350
300A
260
300A
171
300A
112
300A
49
300A
45
300A
35
300A
27
300A
26
300A
17
300A
14
300A
11
300A
7.3
300A
5.3
300A
4.2

Melting
I2t
(A2 sec)
0.090
0.152
0.180
0.355
0.456
1.67
5.20
8.00
15.00
15.80
17.20
22.50
37.25
67.75
210.59
296.10

Typical
Voltage
Drop (mV)
935
433
415
410
365
160
155
153
150
145
141
135
112
110
106
104

* AC Interrupting Rating (Measured at designated voltage, 100% power factor); DC Interrupting Rating (Measured at designated voltage, time constant of less than 50 microseconds, battery source)
** Typical Melting I2t (Measured at 72Vdc, 10X rated current (not exceed 50A - IR @ 72Vdc)

OC-22

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Brick™ Fuses
6125FF Series, Fast Acting
TIME CURRENT CURVE

Printed Circuit Board Fuses - Surface Mount

PACKAGING CODE
Packaging Code
TR2

Visit us on the web at:
www.cooperbussmann.com

Description
5,000 pieces of fuses on tape-and-reel on a 13 inch (330mm) reel

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-23

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Brick™ Fuses
6125FA Series, Fast Acting
Description
• Fast Acting Surface Mount Fuse
• Complies with the EIA-IS-722 Standard
• Solder Immersion Compatible
• Overcurrent protection of systems up to 125VAC/DC
• Wire-in-air design

Printed Circuit Board Fuses - Surface Mount

ELECTRICAL CHARACTERISTICS
% of Amp Rating
Opening Time
100%
4 Hours Minimum
200%
5 Seconds Maximum

Agency Information
• UL Listed Guide and File Numbers (250mA-12A):
JDYX & E19180
• UL Recognized Guide and File Numbers (15A):
JDYX2 & E195337
• CSA Component Acceptance: 053787 C 000 &
Class No: 1422 30
Environmental Data
• Shock: MIL-STD-202, Method 213, Test Condition 1
(100 G’s peak for 6 milliseconds)
• Vibration: MIL-STD-202, Method 201 (10-55 Hz, 0.06
inch, total excursion)
• Salt Spray: MIL-STD-202, Method 101, Test Condition
B (48 hrs)
• Insulation Resistance: MIL-STD-202, Method 302, Test
Condition A (After Opening) 10,000 ohms minimum
• Resistance to Solder Heat: MIL-STD-202, Method 210,
Test Condition F (20 sec, at 260° C)
• Thermal Shock: MIL-STD-202, Method 107, Test
Condition B (-65° C to +125° C)
Ordering
• Specify product and packaging code

RoHS
2002/95/EC

Dimensions

⁄(inches)

mm

Drawing Not to Scale
2.59+ .250
(0.102+.010)

End View

1.35+.25
(0.053+.010)

1.35 +.25
(0.053+.010)

2.59+.25
(0.102+.010)

2.59+ .250
(0.102+.010)

Land Pattern

Top View

6.10+.25
(0.240+.010)

2.6

3.0

(0.102)

(0.118)

4.0
(0.157)

8.6
(0.339)

Soldering Method
• Wave Solder: 260°C, 10 sec max.
(MIL-STD-202, Method 210)
• Infrared Reflow: 260°C, 30 sec max.

SPECIFICATIONS
Product
Code
6125FA250mA
6125FA375mA
6125FA500mA
6125FA750mA
6125FA1A
6125FA1.25A
6125FA1.5A
6125FA2A
6125FA2.5A
6125FA3A
6125FA3.5A
6125FA4A
6125FA5A
6125FA6.3A
6125FA7A
6125FA10A
6125FA12A
6125FA15A

AC
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
N/A

Voltage
Rating
DC
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
N/A
N/A
N/A

DC
86V
86V
86V
86V
86V
86V
86V
86V
86V
86V
86V
86V
86V
86V
86V
86V
86V
86V

Interrupting
Rating*
125V AC 125V DC 86V DC
50A
300A
10,000A
50A
300A
10,000A
50A
300A
10,000A
50A
300A
10,000A
50A
300A
10,000A
50A
300A
10,000A
50A
300A
10,000A
50A
300A
10,000A
50A
300A
10,000A
50A
300A
10,000A
50A
300A
10,000A
50A
300A
10,000A
50A
300A
10,000A
50A
300A
10,000A
50A
300A
10,000A
50A
N/A
10,000A
50A
N/A
10,000A
N/A
N/A
10,000A

Resistance
(ohms)**
Typ.
0.65
0.36
0.24
0.15
0.11
0.09
0.07
0.05
0.038
0.028
0.025
0.022
0.016
0.012
0.011
0.007
0.006
0.004

Typical
Melt
I2t†
0.01
0.03
0.06
0.07
0.14
0.24
0.41
0.80
1.4
2.4
3.3
4.4
7.8
14.0
19.0
44
69
124

Typical
Voltage
Drop (V)‡
0.30
0.25
0.22
0.17
0.17
0.16
0.15
0.15
0.14
0.13
0.13
0.13
0.12
0.12
0.114
0.107
0.103
0.098

* AC Interrupting Rating (Measured at designated voltage, 100% power factor); DC Interrupting Rating (Measured at designated voltage, time constant of less than 50 microseconds, battery source)
** DC Cold Resistance (Measured at 10% of rated current)
† Typical Melting I2t (Measured with a battery bank at rated DC voltage, 10x-rated current, time constant of calibrated circuit less than 50 microseconds)
‡ Typical Voltage Drop (Measured at rated current after temperature stabilizes)
Device designed to carry rated current for four hours minimum. An operating current of 80% or less of rated current is recommended, with further derating required at elevated
ambient temperatures.

OC-24

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Brick™ Fuses
6125FA Series, Fast Acting
TIME CURRENT CURVE

Printed Circuit Board Fuses - Surface Mount

PACKAGING CODE
Packaging Code
TR2

Visit us on the web at:
www.cooperbussmann.com

Description
5,000 pieces of fuses on 12mm tape-and-reel on a 13 inch (330mm) reel per EIA Standard 481

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-25

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Brick™ Fuses
1025TD Series, Time Delay
Description
• Time Delay Surface Mount Fuse
• Satisfies the EIA/IS-722 Standard
• Solder Immersion Compatible

RoHS
2002/95/EC

Printed Circuit Board Fuses - Surface Mount

ELECTRICAL CHARACTERISTICS
% of Amp Rating
Opening Time
100%
4 Hours Minimum
200%
1 Second Minimum
200%
60 Seconds Maximum
250% *
10 Seconds Maximum
* If fuse does not open @ 200% in 60 seconds, raise current to 250%
and the fuse must open in 10 seconds maximum.

Agency Information
• UL Recognition Guide & File numbers:
JDYX2 & E19180 (250mA - 5A)
• CSA Component Acceptance:
File # 053787 C000, Class # 1422 30
Environmental Data
• Life Test: MIL-STD-202, Method 108A, Test Condition D
• Load Humidity: MIL-STD-202, Method 103B
• Moisture Resistance: MIL-STD-202, Method 106E
• Terminal Strength: MIL-STD-202, Method 211A
• Thermal Shock: MIL-STD-202, Method 107D, air-to-air
• Case Resistance: EIA/IS-722
• Resistance to Dissolution of Metallization:
ANSI J-STD-002, Test D
• Mechanical Shock: MIL-STD-202, Method 213B with
exceptions per EIA/IS-722 Standard
• High Frequency Vibration: MIL-STD-202, Method 204D,
Test Condition D
• Resistance to Solvents: MIL-STD-202, Method 215A

Dimensions

mm

⁄(inches)

Drawing Not to Scale

Land Pattern

3.30
(0.130)

4.38
(0.172)

6.79
(0.267)

Ordering
• Specify packaging and product code
(i.e., TR2/1025TD250-R)
Soldering Method
• Wave Immersion: 260°C, 10 sec max.
• Infrared: 260°C, 30 sec max.

SPECIFICATIONS
Product Code

Current
Rating

1025TD250-R
1025TD500-R
1025TD750-R
1025TD1-R
1025TD1.5-R
1025TD2-R
1025TD2.5-R
1025TD3-R
1025TD3.5-R
1025TD4-R
1025TD5-R

250mA
500mA
750mA
1A
1.5A
2A
2.5A
3A
3.5A
4A
5A

Voltage
Rating
AC
DC
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V

Interrupting
Rating*
250VAC 125VDC
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A

DC Cold
Resistance** (ohms)
Typical
4.200
0.5500
0.317
0.2030
0.1025
0.0680
0.0420
0.0330
0.0270
0.0220
0.0160

Typical
Melting
I2t†
0.128
1.47
0.93
9.91
11.79
17.27
16.51
42.74
43.33
66.96
88.38

Typical
Voltage
Drop‡
1900 mV
455 mV
400 mV
387 mV
310 mV
250 mV
201 mV
184 mV
180 mV
152 mV
145 mV

* AC Interrupting Rating (Measured at designated voltage, 100% power factor random closing); DC Interrupting Rating (Measured at designated voltage, time constant of the calibrated circuit is less than 50 microseconds, battery source)
** DC Cold Resistance (Measured at ≤10% of rated current)
† Typical Melting I2t (Measured with a battery bank at rated DC voltage, 10x-rated current, time constant of calibrated circuit less than 50 microseconds)
‡ Typical Voltage Drop (Measured at rated current after temperature stabilizes)
‡‡ Marking Code - 3rd (U = USA, T = Taiwan and S = China)
• Device designed to carry rated current for four hours minimum. An operating current of 80% or less of rated current is recommended, with further derating required at elevated ambient temperatures.

OC-26

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Brick™ Fuses
1025TD Series, Time Delay
TIME CURRENT CURVE

Printed Circuit Board Fuses - Surface Mount

PACKAGING CODE
Packaging Code
TR2

Visit us on the web at:
www.cooperbussmann.com

Description
2,500 pieces of fuses on 24mm tape-and-reel on 13 inch (330mm) reel per EIA Standard 481

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-27

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Brick™ Fuses
1025FA Series, Fast Acting

Printed Circuit Board Fuses - Surface Mount

Description
• Fast Acting Surface Mount Fuse
• Satisfies the EIA/IS-722 Standard
• Solder Immersion Compatible

RoHS
2002/95/EC

ELECTRICAL CHARACTERISTICS
% of Amp Rating
Opening Time
100%
4 Hours Minimum
200% (250mA-5A)
5 Seconds Maximum
250% (250mA-5A fuse)
1 Second Maximum
200% (7A-15A fuse)
20 Seconds Maximum
250% (7A-15A fuse)
4 Seconds Maximum
Note: 30vde constant current source required for 200%
overload tests on 250ma-1a.

Agency Information
• UL Recognition Guide & File numbers:
JDYX2 & E19180 (250mA - 15A)
• CSA Component Acceptance:
File # 053787 C000, Class # 1422 30
Environmental Data
• Life Test: MIL-STD-202, Method 108A, Test Condition D
• Load Humidity: MIL-STD-202, Method 103B
• Moisture Resistance: MIL-STD-202, Method 106E
• Terminal Strength: MIL-STD-202, Method 211A
• Thermal Shock: MIL-STD-202, Method 107D, air-to-air
• Case Resistance: EIA/IS-722
• Resistance to Dissolution of Metallization:
ANSI J-STD-002, Test D
• Mechanical Shock: MIL-STD-202, Method 213B with
exceptions per EIA/IS-722 Standard
• High Frequency Vibration: MIL-STD-202, Method 204D,
Test Condition D
• Resistance to Solvents: MIL-STD-202, Method 215A

Dimensions

⁄(inches)

mm

Drawing Not to Scale

Land Pattern

3.30
(0.130)

4.38
(0.172)

6.79
(0.267)

Ordering
• Specify packaging and product code
(i.e., TR2/1025FA250-R)
Soldering Method
• Wave Solder: 260°C, 10 sec max.
• Infrared Reflow: 260°C, 30 sec max.

SPECIFICATIONS
Product Code

Current
Rating

1025FA250-R
1025FA500-R
1025FA750-R
1025FA1-R
1025FA1.5-R
1025FA2-R
1025FA2.5-R
1025FA3-R
1025FA3.5-R
1025FA4-R
1025FA5-R
1025FA7-R
1025FA10-R
1025FA12-R
1025FA15-R

250mA
500mA
750mA
1A
1.5A
2A
2.5A
3A
3.5A
4A
5A
7A
10A
12A
15A

Voltage
Rating
AC
DC
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
60V
250V
60V
250V
60V
250V
60V

Interrupting
Rating*
250VAC 125VDC 60VDC
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A

DC Cold
Resistance** (ohms)
Typical
5.0000
1.2000
0.6000
0.3000
0.1040
0.0800
0.0510
0.0390
0.0300
0.0270
0.0200
0.0116
0.0076
0.0550
0.0041

Typical
Melting
I2t†
0.1212
0.0415
0.143
1.750
1.460
6.086
8.48
18.15
17.83
23.32
38.74
138
457
498
1451

Typical
Voltage
Drop‡
2019 mV
1500 mV
880 mV
560 mV
260 mV
258 mV
232 mV
205 mV
185 mV
190 mV
180 mV
150 mV
146 mV
120 mV
110 mV

* AC Interrupting Rating (Measured at designated voltage, 100% power factor random closing); DC Interrupting Rating (Measured at designated voltage, time constant of
less than 50 microseconds, battery source)
** DC Cold Resistance (Measured at ≤10% of rated current)
† Typical Melting I2t (Measured with a battery bank at rated DC voltage, 10x-rated current, but not exceeding the interrupting rating. Time constant of calibrated circuit less
than 50 microseconds). Test current not to exceed interrupting rating of 50A.
‡ Typical Voltage Drop (Measured at rated current after temperature stabilizes)
• Device designed to carry rated current for four hours minimum. An operating current of 80% or less of rated current is recommended, with further derating required at
elevated ambient temperatures.

OC-28

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Brick™ Fuses
1025FA Series, Fast Acting
TIME CURRENT CURVE

Printed Circuit Board Fuses - Surface Mount

PACKAGING CODE
Packaging Code
TR2

Visit us on the web at:
www.cooperbussmann.com

Description
2,500 pieces of fuses on 24mm tape-and-reel on 13 inch (330mm) reel per EIA Standard 481

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-29

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

TCP™ Series

Printed Circuit Board Fuses - Surface Mount

TCP1.25A, Telecom Circuit Protector
Description
• The first and most reliable surface mount telecom circuit
protector designed to protect against power cross faults
and comply with all surge requirements.
• Allows compliance with telecom regulatory standards
including Bellcore GR 1089, UL 1950/60950, and FCC
part 68. Application circuit testing is recommended.
• Eliminates the need for a current limiting resistor.
• Protects against overcurrent conditions found in telecom
Subscriber Line Interface Cards (SLICs), xDSL Modem
Applications, Set-Top Boxes, and Consumer Premises
Equipment (CPE).
• TCP1.25A tested and confirmed compatible with
STMicroelectronics Trisil™ Transient Surge Arrestor
(list of part numbers below)

RoHS
2002/95/EC

Dimensions

⁄(inches)

mm

STMicroelectronics Trisil™ P/N’s
SMP100LC-XXX
SMP100MC-XXX
ELECTRICAL CHARACTERISTICS
% of Amp Rating
Opening Time
100%
4 Hours Minimum
250%
1 Second Minimum
250%
4-10 Seconds Typical
250%*
120 Seconds Maximum
300%
10 Seconds Maximum

Land Pattern

5.2

3.7

(0.204)

(0.145)

4.0
(0.157)

* If the device does not open at 250% within 120 seconds, increase current to 300% of amp rating. Device must open in 10 seconds max.

Environmental Data
• Life Test: MIL-STD-202, Method 108A, Test Condition D
• Load Humidity: MIL-STD-202, Method 103B
• Moisture Resistance: MIL-STD-202, Method 106E
• Thermal Shock: MIL-STD-202, Method 107D, air-to-air
• Case Resistance: EIA/IS-722
• Resistance to Dissolution of Metallization:
ANSI J-STD-002, Test D
• Mechanical Shock: MIL-STD-202, Method 213B, Test
Condition A
• High Frequency Vibration: MIL-STD-202, Method 204D,
Test Condition D
• Resistance to Solvents: MIL-STD-202, Method 215A

12.6
(0.496)

Agency Information
• UL Recognition Card: JDYX2/E19180
• CSA Component Certification Record and Class No.:
053787C000, 1422 30
Ordering
• Specify packaging, product and option code (refer to OC-35)
(i.e., TR2/TCP1.25-R)
Soldering Method
• Wave Immersion: 260°C, 10 sec max.
• Infrared: 260°C, 30 sec max.

LIGHTNING SURGE SPECIFICATIONS
Surge Specification

Surge

Repetitions

Waveform
(μSec.)

Current (A)

Voltage (V)

Performance
Requirement

FCC 47 Part 68
FCC 47 Part 68
Bellcore GR-1089-CORE
Bellcore GR-1089-CORE
Surge out
Surge out

Longitudinal Type A
Metallic Type B
First Level Lightning
First Level Lightning

2
2
50
50
1
1

10x160
10x560
10x1000
2x10
10x160
10x560

100 per fuse
100
100
500
160
115

1500
800
1000
2500
N/A
N/A

Fuse cannot open
Fuse cannot open
Fuse cannot open
Fuse cannot open
Fuse cannot open
Fuse cannot open

ELECTRICAL AND POWER CROSS SPECIFICATIONS
Product
Code
TCP1.25A

Voltage
Rating
AC
250 V

Interrupting
Rating*
250VAC 600VAC
50 A
60 A

DC Cold
Resistance** (ohms)
min. typ. max.
0.070 0.090 0.110

Typical
Melting
I2t†
22.2 A2s

Maximum
Total
Clearing
100 A2s

Typical
Voltage
Drop‡
150mV

Alpha Code
Marking
1st Code 2nd Code
J
R***

* AC Interrupting Rating (Measured at designated voltage, 100% power factor)
** DC Cold Resistance (Measured at 10% of rated current)
*** On RoHS Compliant Version (-R option)
† Typical Melting I2t (Measured with a battery bank at 60V DC, 10x-rated current, time constant of calibrated circuit less than 50 microseconds)
‡ Typical Voltage Drop (Measured at rated current after temperature stabilizes)

OC-30

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

TCP™ Series
TCP1.25A, Telecom Circuit Protector
Special Investigation
The TCP1.25A is designed to provide overcurrent protection for telecom SLIC, xDSL modem, and set-top box applications regardless of the overvoltage device selected. To provide an easier specification experience, Cooper Bussmann and STMicroelectronics
have joined together to provide a special test report confirming the coordination between the TCP1.25A
and SMP100MC-270 devices.

TEST CIRCUITS
Fuse TCP 1.25A
Tip L

Tip S

Printed Circuit Board Fuses - Surface Mount

Fuse TCP 1.25A
L1

SMP100MC-270*

T1

SMP100MC-270*

L2

Gnd

Gnd

SMP100MC-270*

T2
Fuse TCP 1.25A
Ring L

Test Circuit 1

Ring S

Test Circuit 2

* Note: or other STMicroelectronics Trisil™ part number listed in table on page 1

TEST PROGRAM
Test
Lightning Surge Tests
10/1000μs + and –1kV 100A (25 pulses of each polarity)
2/10μs + and –2.5 and 5kV 500A (10 pulses of each polarity)
10/560μs + and –800V 100A (1 pulse of each polarity)
10/160μs + and –1.5kV 200A (1 pulse of each polarity)
10/700μs + and –1.5kV 37.5A (5 pulses of each polarity)
Electrical and Power Cross Tests
600V 3A 1.1s (first level)
277V 25A (second level)
600V 60A 5s(second level)
600V 40A 1.5s
600V 2.2A 30min
600V 1A 0.2s (A criteria)
230V 1.44A/0.77A/0.38A 15min (A criteria)
230V 23A 15min (A criteria)

Standard

Results

Bellcore GR-1089
Bellcore GR-1089
FCC Part 68
FCC Part 68
K20

Passed
Passed
Passed
Passed
Passed

Bellcore GR-1089
Bellcore GR-1089
Bellcore GR-1089
UL 60950
UL 60950
K20
K20
K20

Passed
Passed
Passed
Passed
Passed
Passed
Passed
Passed

For additional information on STMicroelectronic’s Trisil™ Product line, please see www.st.com/protection

OC-31

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

TCP™ Series
TCP500MA & TCP2A, Telecom Circuit Protector

Printed Circuit Board Fuses - Surface Mount

Description
• Designed to protect Consumer Premises Equipment from
harmful overcurrents.
• Allows compliance with telecom regulatory standards
including UL 1950/60950, and FCC part 68. Application
circuit testing is recommended.
• Eliminates the need for a current limiting resistor.
ELECTRICAL CHARACTERISTICS
% of Amp Rating
Opening Time
100%
4 Hours Minimum
250%
1 Second Minimum
250%
4-10 Seconds Typical
250%*
120 Seconds Maximum
300%
10 Seconds Maximum

RoHS
2002/95/EC

Dimensions

⁄(inches)

mm

* If the device does not open at 250% within 120 seconds, increase
current to 300% of amp rating. Device must open in 10 seconds max.

Agency Information
• UL Recognition Card: JDYX2/E19180
• CSA Component Certification Record and Class No.:
053787C000, 1422 30
Environmental Data
• Life Test: MIL-STD-202, Method 108A, Test Condition D
• Load Humidity: MIL-STD-202, Method 103B
• Moisture Resistance: MIL-STD-202, Method 106E
• Thermal Shock: MIL-STD-202, Method 107D, air-to-air
• Case Resistance: EIA/IS-722
• Resistance to Dissolution of Metallization:
ANSI J-STD-002, Test D
• Mechanical Shock: MIL-STD-202, Method 213B, Test
Condition A
• High Frequency Vibration: MIL-STD-202, Method 204D,
Test Condition D
• Resistance to Solvents: MIL-STD-202, Method 215A

Land Pattern

5.2

3.7

(0.204)

(0.145)

4.0
(0.157)

12.6
(0.496)

Ordering
• Specify packaging, product and option code
(i.e., TR2/TCP500-R)
Soldering Method
• Wave Immersion: 260°C, 10 sec max.
• Infrared: 260°C, 30 sec max.

LIGHTNING SURGE SPECIFICATIONS
Surge Specification

Surge

Repetitions

FCC 47 Part 68
FCC 47 Part 68
Surge out

Longitudinal Type B
Metallic Type A

2
2
25

FCC 47 Part 68
FCC 47 Part 68
Bellcore GR-1089-CORE
Bellcore GR-1089-CORE
Surge out
Surge out

Longitudinal Type A
Metallic Type B
First Level Lightning
First Level Lightning

Waveform
(μSec.)

TCP 500mA tested
5x320
10x560
10x160
TCP2A tested
2
10x160
2
10x560
50
10x1000
50
2x10
1
10x160
1
10x560

Current (A)

Voltage (V)

Performance
Requirement

37.5
100
65

N/A
800
N/A

Fuse cannot open
Fuse must open safely
Fuse cannot open

100 per fuse
100
100
500
160
115

1500
800
1000
2500
N/A
N/A

Fuse cannot open
Fuse cannot open
Fuse cannot open
Fuse cannot open
Fuse cannot open
Fuse cannot open

ELECTRICAL AND POWER CROSS SPECIFICATIONS
Product
Code
TCP500mA
TCP2A

Voltage
Rating
AC
250 V
250 V

Interrupting
Rating*
250VAC 600VAC
50 A
40 A
50 A
60 A

DC Cold
Resistance** (ohms)
min. typ. max.
0.420 0.530 0.640
0.050 0.075 0.100

Typical
Melting
I2t†
1.3 A2s
30 A2s

Maximum
Total
Clearing
100 A2s
100 A2s

Typical
Voltage
Drop‡
471mV
205mV

Alpha Code
Marking
1st Code 2nd Code
F
R***
N

* AC Interrupting Rating (Measured at designated voltage, 100% power factor)
** DC Cold Resistance (Measured at 10% of rated current)
*** On RoHS Compliant Version (-R option)
† Typical Melting I2t (Measured with a battery bank at 60V DC, 10x-rated current, time constant of calibrated circuit less than 50 microseconds)
‡ Typical Voltage Drop (Measured at rated current after temperature stabilizes)

OC-32

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

TCP™ Series
TCP500MA & TCP2A, Telecom Circuit Protector
TIME CURRENT CURVE

Printed Circuit Board Fuses - Surface Mount

PACKAGING CODE
Packaging Code
TR2

Description
2,500 pieces of fuses on 24mm tape-and-reel on 13 inch (330mm) reel per EIA Standard 481, 8mm pitch

OPTION CODE
Option Code
-R

Visit us on the web at:
www.cooperbussmann.com

Description
RoHS Compliant Version (Sn plating w/ Ni barrier)

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-33

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Subminiature Microtron® Fuses
MCRW Series, Fast Acting, Wire-in-Air
Description
RoHS
2002/95/EC

• Axial Leaded Fast Acting Thru-Hole Fuse
• Tin-lead Plated Copper Lead Wires
• High Temperature Epoxy Plastic Body, UL 94 VO
• Low resistance values
ELECTRICAL CHARACTERISTICS
% of Amp Rating
Opening Time
100%
4 hours minimum
200%
5 seconds maximum

Agency Information

Dimensions

• UL Recognition Guide & File numbers: JDYX2 &
E195337.
• CSA Certification Record No: LR 701159 & Class No:
1422 30 and 1422 01.

mm

⁄(inches)
3.18 ± 0.1___
(0.125 ± 0.004)

7.1 ± 0.5
(0.280 ± 0.020)

“B”

Environmental Data

“A”

Amperage
100mA - 7A
10A - 15A

Printed Circuit Board Fuses - Axial and Radial Leaded

• Shock Resistance: MIL-STD-202, Method 213, Test
Condition 1 (Sawtooth)
• Vibration Resistance: MIL-STD-202, Method 201
(10-55 Hz x 3 axis/ no load)
• Moisture Resistance: MIL-STD-202F, Method 106
• Soldering Heat Resistance: 260°C, 10 seconds per
IEC 68-2-20
• Salt Spray: MIL-STD-202, Method 101, Test Condition
B (48 Hours)

“A” Diameter
0.025"
0.032"

Packaging Code
BK1
TR1

“B” Length
1.5"
1.13"

3.18 ± 0.1
diameter
(0.125 ± 0.004)

End View

“A” diameter

Construction

Ordering
• Specify packaging and product code
(i.e., TR1/MCRW100mA)
Soldering Method
• Heat Resistance: 260°C, 10 sec per IEC 68-2-20

SPECIFICATIONS
Product Code
MCRW100mA
MCRW125mA
MCRW150mA
MCRW200mA
MCRW250mA
MCRW300mA
MCRW375mA
MCRW500mA
MCRW750mA
MCRW1A
MCRW1.5A
MCRW2A
MCRW2.5A
MCRW3A
MCRW4A
MCRW5A
MCRW7A
MCRW10A
MCRW12A
MCRW15A
*
**
†
‡

Voltage
Rating
AC/DC
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V

Interrupting
Rating*
AC
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A

DC
300 A
300 A
300 A
300 A
300 A
300 A
300 A
300 A
300 A
300 A
300 A
300 A
300 A
300 A
300 A
300 A
300 A
300 A
300 A
300 A

Resistance
(ohms)**
Typ.
15.5
2.2
1.6
1.2
0.85
0.62
0.49
0.33
0.19
0.13
0.07
0.054
0.041
0.031
0.023
0.018
0.012
0.007
0.006
0.004

Typical
Melt
I2t†
0.0006
0.0009
0.0015
0.002
0.004
0.008
0.012
0.023
0.056
0.10
0.25
0.27
0.50
0.9
1.6
3
7
21
35
63

Typical
Voltage
Drop (V)‡
0.68
0.61
0.54
0.48
0.43
0.39
0.35
0.31
0.25
0.22
0.18
0.24
0.22
0.20
0.19
0.17
0.15
0.098
0.093
0.088

AC Interrupting Rating (Measured at designated voltage, 100%) DC Interrupting Rating (Measured at designated voltage, rise time of less than 50 microseconds, battery source)
DC Cold Resistance (Measured at 10% of rated current)
Typical Melting I2t (Measured with a battery bank at rated DC voltage, 10x-rated current, rise time of calibrated circuit less than 50 microseconds)
Typical Voltage Drop (Measured at rated current after temperature stabilizes)

OC-34

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Subminiature Microtron® Fuses
MCRW Series, Fast Acting, Wire-in-Air
TIME CURRENT CURVE

Printed Circuit Board Fuses - Axial and Radial Leaded

PACKAGING CODE
Packaging Code
BK1
TR1

Visit us on the web at:
www.cooperbussmann.com

Description
1,000 pieces in bulk
2,500 pieces on tape-and-reel per EIA-296-E @ 5 mm pitch and 52.4mm inside tape spacing

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-35

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Subminiature Microtron® Fuses
MCRS Series, Slow Blow, Wire-in-Air
Description
RoHS
2002/95/EC

• Axial Leaded Slow Blow Thru-Hole Fuse
• Tin-lead Plated Copper Lead Wires
• High Temperature Epoxy Plastic Body, UL 94 VO
ELECTRICAL CHARACTERISTICS
% of Amp Rating
Opening Time
100%
4 hours minimum
200%
30 seconds maximum

Agency Information
• UL Recognition Guide & File numbers: JDYX2 &
E195337.
• CSA Certification Record No: LR 701159 & Class No:
1422 30 and 1422 01.

Dimensions

mm

⁄(inches)
7.1 ± 0.5
(0.280 ± 0.020)

"A"

3.18 ± 0.1__ _
(0.125 ± 0.004)

Environmental Data
• Shock Resistance: MIL-STD-202, Method 213, Test
Condition 1 (Sawtooth)
• Vibration Resistance: MIL-STD-202, Method 201
(10-55 Hz x 3 axis/ no load)
• Moisture Resistance: MIL-STD-202F, Method 106
• Soldering Heat Resistance: 260°C, 10 seconds per
IEC 68-2-20
• Salt Spray: MIL-STD-202, Method 101, Test
Condition B (48 Hours)

Packaging Code
BK1
TR1

End View

0.81 dia.
(0.032)

“A” Length
1.5"
1.13"

3.18 ± 0.1
diameter
(0.125 ± 0.004)
0.81
diameter
(0.032)

Construction

Printed Circuit Board Fuses - Axial and Radial Leaded

Ordering
• Specify packaging and product code
(i.e., TR1/MCRS250mA)
Soldering Method
• Heat Resistance: 260°C, 10 sec per IEC 68-2-20

SPECIFICATIONS
Product Code
MCRS250mA
MCRS300mA
MCRS375mA
MCRS500mA
MCRS750mA
MCRS1A
MCRS1.25A
MCRS1.5A
MCRS2A
MCRS2.5A
MCRS3A
MCRS4A
MCRS5A
MCRS7A

Voltage
Rating
AC/DC
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V

Interrupting
Rating*
AC
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A
50 A

DC
300 A
300 A
300 A
300 A
300 A
300 A
300 A
300 A
300 A
300 A
300 A
300 A
300 A
300 A

Resistance
(ohms)**
Typ.
3.20
2.57
1.66
1.07
0.55
0.36
0.23
0.18
0.12
0.08
0.06
0.04
0.02
0.01

Typical
Melt
I2t†
0.042
0.056
0.101
0.18
0.44
0.78
1.41
1.9
3.4
6.1
8.1
15
35
63

Typical
Voltage
Drop (V)‡
2.20
2.02
1.69
1.42
1.09
0.91
0.77
0.7
0.59
0.5
0.45
0.38
0.29
0.25

* AC Interrupting Rating (Measured at designated voltage, 100%) DC Interrupting Rating (Measured at designated voltage, rise time of less than 50 microseconds, battery source)
** DC Cold Resistance (Measured at 10% of rated current)
† Typical Melting I2t (Measured with a battery bank at rated DC voltage, 10x-rated current, rise time of calibrated circuit less than 50 microseconds)
‡ Typical Voltage Drop (Measured at rated current after temperature stabilizes)

OC-36

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Subminiature Microtron® Fuses
MCRS Series, Slow Blow, Wire-in-Air
TIME CURRENT CURVE

Printed Circuit Board Fuses - Axial and Radial Leaded

PACKAGING CODE
Packaging Code
BK1
TR1

Visit us on the web at:
www.cooperbussmann.com

Description
1,000 pieces in bulk
2,500 pieces on tape-and-reel per EIA-296-E @ 5 mm pitch and 52.4mm inside tape spacing

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-37

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Printed Circuit Board Fuses
PC-Tron® Series
Description
• Radial Leaded Fast Acting Thru-Hole Fuse
• Ideal for high voltage DC applications
• Board washable
• Optional mounting socket available (PCS)
• Available in different lead configurations

RoHS
2002/95/EC

Printed Circuit Board Fuses - Axial and Radial Leaded

AC TIME-CURRENT CHARACTERISTICS
% of Amp Rating
Opening Time
100%
4 hours minimum
200%
10 second maximum

Agency Information
• UL Recognized: E19180
• CSA: 42731
Ordering
• Specify packaging, product, and option code
(i.e., BK/PCB-1/2-R)
DC Application
The PC-Tron subminiature fuse is UL Recognized for
DC supplementary overcurrent protection to provide
individual protection for components or internal circuits
in equipment. Suitability for a specific application is
dependent on time constants and capacitance values.
It is the responsibility of the customer to evaluate the
information provided for applicability to their particular
application.

Dimensions

mm

⁄(inches)

Dimensional Data: All tolerances

± .005"
± .13 mm

Mounting Socket (RoHS compliant)
• Available as option. Specify catalog number BK/PCS
(100-in) and short fuse lead length — PCC or PCE
Socket (PCS)
.030"
(2.41mm)

.300"
(7.62mm)

.200"
(5.08mm)

.095"
(2.41mm)

.290"
(7.37mm)

.12" ± .010"

(3.05mm ± 0.25mm)

SPECIFICATIONS
Product Code / Amp Rating
PCB - 1/2, 3/4, 1, 1-1/2, 2, 2-1/2

Lead
Length
Full - 0.750" (straight)

Voltage
Rating AC
250V

PCB - 3
PCC - 1/2, 3/4, 1, 1-1/2, 2, 2-1/2

Full - 0.750" (straight)
Short 0.100" (straight)

250V
250V

PCC - 3

Short 0.100" (straight)

250V

PCD - 5
PCE - 5
PCF - 1/2, 3/4, 1, 1-1/2, 2, 2-1/2

Full - 0.750" (straight)
Short 0.100" (straight)
0.475"

125V
125V
250V

PCF - 3

0.475"

250V

PCG - 5
PCH - 1/2, 3/4, 1, 1-1/2, 2, 2-1/2

0.475"
0.125"

125V
250V

PCH - 3

0.125"

250V

PCI - 5

0.125"

125V

AC
Interrupting
50A @ 250V
10kA @ 125V
50A @ 250V
50A @ 250V
10kA @ 125V
50A @ 250V
10kA @ 125V
10kA @ 125V
10kA @ 125V
50A @ 250V
10kA @ 125V
50A @ 250V
10kA @ 125V
10kA @ 125V
50A @ 250V
10kA @ 125V
50A @ 250V
10kA @ 125V
10kA @ 125V

Voltage
Rating DC
450V

DC Interrupting
Min.
Max.
300
5900A

350V
450V

300
300

4400A
5900A

350V

300

4400A

250V
250V
450V

300
300
300

4200A
4200A
5900A

350V

300

4400A

250V
450V

300
300

4200A
5900A

350V

300

4400A

250V

300

4200A

Device designed to carry rated current for four hours minimum. An operating current of 80% or less of rated current is recommended, with further derating required at
elevated ambient temperatures.

OC-38

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Printed Circuit Board Fuses
PC-Tron® Series

TIME IN SECONDS

Dimensional Data (PCH, PCI)
.350"

.184"

(8 89
(8.89mm)

(4.67mm)

.345"

.15"

(0.38mm)

Max. Total Clearing I2t (Amps2 Sec.)
Amp
Rating

.184"

.345"

0.25"

R

.500"
0
MIN.

.020"

Volts AC
125 Volts

50A
1/2A
0.006
3/4A
0.016
1A
0.020
1-1/2A
0.090
2A
0.200
2-1/2A
0.300
3A
0.750
5A
5.0
Note—Power Factor > .90.

250 Volts
10,000A
35A & 50A
0.006
0.006
0.016
0.016
0.020
0.020
0.090
0.090
0.200
0.200
0.300
0.300
0.750
0.750
5.0
—

.015"

.400"
REF.

PACKAGING CODE
Packaging Code
Blank
BK
TR*
* Only for PCB and PCD

Visit us on the web at:
www.cooperbussmann.com

1,000A
0.006
0.016
0.020
0.090
0.200
0.300
0.750
5.0

Description
5 pieces of fuses
100 pieces of fuses in a carton
500 pieces of fuses on tape and Reel

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

OPTION CODE
Option Code
-R

Printed Circuit Board Fuses - Axial and Radial Leaded

.350"

CURRENT IN AMPERES

(1.91mm) (3.81mm)

Dimensional Data (PCF, PCG)

200

.015"
+ .127mm)

100

(0.51mm)

10

.01

.020"

1

(0.64mm)

250V

125V

.1

.0.25"

(
(8.76mm
m)
m

BUSS
PCG

1

.4

BUSS
PC_

AMPERE
RATING

5

10

1.5
2
2.5
3

Standard Fuse (PCB, PCD)

0.75
1

Time-Current Characteristic Curves–Average Melt
0.5

± .005"
± .13 mm

Dimensional Data: All tolerances

Description
RoHS Compliant Version

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-39

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Subminiature Fuses
SR-5 Series, Time Lag
Description
• Radial Leaded Time Lag Thru-Hole Fuse
• Designed to IEC 60127-3, Sheet 4
• Internationally accepted for primary and secondary
overcurrent protection

RoHS
2002/95/EC

• Place directly into PCB or plug into BK/PCS holder

• High inrush withstand capability
• Compatible with leaded and lead-free reflow and wave
solder
• Base/Cap is Nylon #66, UL 94V0

• Pins are Tin Plated Copper

Dimensions

mm

⁄(inches)

Printed Circuit Board Fuses - Axial and Radial Leaded

ELECTRICAL CHARACTERISTICS
Rated
1.5 In 2.1 In
2.75 In
4 In
10 In
Current
min max min max min max min
max
400mA-6.3A 1hr 2 min 400 ms 10 sec 150 ms 3 sec 20 ms 150 ms

Agency Information
• UL Recognition: E146895 (400mA thru 6.3A)
• CSA: LR98127 (400mA thru 5A)
• VDE: 122052 (500mA thru 4A, 6.3A)
• SEMKO: 0035176 (500mA thru 4A)
• CCC 2003010207072514 (500mA thru 4A)
• METI: 32-1966 (500mA thru 5A)
• EK: KTL SA05004 (500mA thru 4A)
• Remaining 5-6.3A Approvals Pending
Specifications
• Solderability: EIA-186-9E Method 9
• High Frequency Vibration: MIL-STD-202F,
Method 201A
• Operating Temperature: -40°C to +125°C
• Soldering Heat Resistance: 260°C, 10S
(IEC 60068-2-20)
Ordering
• Specify product and packaging code
(i.e., SR-5-1A-AP)

SPECIFICATIONS
Product
Code

Voltage Rating
AC

SR-5-500mA
SR-5-630mA
SR-5-800mA
SR-5-1A
SR-5-1.25A
SR-5-1.6A
SR-5-2A
SR-5-2.5A
SR-5-3.15A
SR-5-4A
*SR-5-5A
*SR-5-6.3A

250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V

Interrupting
Rating @
Rated Voltage
35A
35A
35A
35A
35A
35A
35A
35A
35A
40A
50A
63A

Typical DC Cold
Resistance
(ohms)
0.270
0.175
0.125
0.083
0.061
0.047
0.031
0.028
0.023
0.015
0.011
0.009

Typical Melting
I2t (A2s)
at 1ms
2
3.5
6.5
9
13
24
30
45
57
80
120
140

Maximum Power
Dissipation
(mW)
310
360
430
500
600
730
870
1000
1200
1400
1800
2000

* Conducting Path min. 0.2mm2

OC-40

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Subminiature Fuses
SR-5 Series, Time Lag

4000

6000

8000
8000

60 80 100

6000

30 40

4000

20

2000

4 5 6 7 8 9 10

1000

3

600

2

800

0. 6 0. 8 1

400

0. 2 0. 3 0.4

200

TIME CURRENT CURVE

2000

1000
900
800
700
600
500
400
300
200

100
90
80
70
60
50
40
30

TIME IN SECONDS

20

10
9
8
7
6
5
4
3
2

1
0.9
0.8
0.7
0.6
0.5
0.4

Printed Circuit Board Fuses - Axial and Radial Leaded

0.3
0.2

0.1
0.09
0.08
0.07
0.06
0.05
0.04

SR- 5 T1.6A

SR- 5 T1.25A

SR- 5 T2A

SR- 5 T1A

SR- 5 T2.5A

0.03
0.02

0.01
0.009
0.008
0.007
0.006
0.005
0.004
0.003

SR- 5 T800mA

SR- 5 T3.15A

SR- 5 T500mA

SR- 5 T4A

SR- 5 T400mA

SR- 5 T5A
SR- 5 T6.3A

0.002

2

3

4 5 6 7 8 9 10

20

30

40

60 80 100

200

400

600

2000

0. 6 0. 8 1

1000

0. 2 0. 3 0.4

800

0.001

CURRENT IN AMPERES

PACKAGING CODE
Packaging Code
-AP
-BK

Visit us on the web at:
www.cooperbussmann.com

Description
Ammo-pack taped 1,000 per box
In bulk 200 per bag

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-41

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Subminiature Fuses
SS-5 Series, Time Lag
Description
• Radial Leaded Time Lag Thru-Hole Fuse
• Rectangular shape with reduced foot print
• Designed to IEC 60127-3, Sheet 4
• Internationally accepted for primary and secondary
overcurrent protection

RoHS
2002/95/EC

• Place directly into PCB or plug into BK/PCS holder

• High inrush withstand capability
• Compatible with leaded and lead-free reflow and wave
solder
• Base/Cap is Nylon #66, UL 94V0

• Pins are Tin Plated Copper

Printed Circuit Board Fuses - Axial and Radial Leaded

ELECTRICAL CHARACTERISTICS
Rated
1.5 In 2.1 In
2.75 In
4 In
10 In
Current
min max min max min max min
max
400mA-6.3A 1hr 2 min 400 ms 10 sec 150 ms 3 sec 20 ms 150 ms

Dimensions

⁄(inches)

mm

Agency Information
• UL Recognition: E146895 (400mA thru 6.3A)
• CSA: LR98127 (400mA thru 5A)
• VDE: 122052 (500mA thru 4A, 6.3A)
• SEMKO: 603891 (630mA thru 4A)
• CQC 05012014933 (630mA thru 4A)
• METI: 32-1966 (500mA thru 5A)
• Remaining 5-6.3A Approvals Pending
Specifications
• Solderability: EIA-186-9E Method 9
• High Frequency Vibration: MIL-STD-202F,
Method 201A
• Operating Temperature: -40°C to +125°C
• Soldering Heat Resistance: 260°C, 10S
(IEC 60068-2-20)
Ordering
• Specify product and packaging code
(i.e., SS-5-1A-AP)

SPECIFICATIONS
Product
Code

Voltage Rating
AC

SS-5-500mA
SS-5-630mA
SS-5-800mA
SS-5-1A
SS-5-1.25A
SS-5-1.6A
SS-5-2A
SS-5-2.5A
SS-5-3.15A
SS-5-4A
*SS-5-5A
*SS-5-6.3A

250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V

Interrupting
Rating @
Rated Voltage
35A
35A
35A
35A
35A
35A
35A
35A
35A
40A
50A
63A

Typical DC Cold
Resistance
(ohms)
0.270
0.175
0.125
0.083
0.061
0.047
0.031
0.028
0.023
0.015
0.011
0.009

Typical Melting
I2t (A2s)
at 1ms
2
3.5
6.5
9
13
24
30
45
57
80
120
140

Maximum Power
Dissipation
(mW)
310
360
430
500
600
730
870
1000
1200
1400
1800
2000

* Conducting Path min. 0.2mm2

OC-42

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Subminiature Fuses
SS-5 Series, Time Lag

4000

6000

8000
8000

60 80 100

6000

30 40

2000

20

4000

4 5 6 7 8 9 10

600

3

800

2

1000

0. 6 0. 8 1

400

0. 2 0. 3 0.4

200

TIME CURRENT CURVE

2000

1000
900
800
700
600
500
400
300
200

100
90
80
70
60
50
40
30

TIME IN SECONDS

20

10
9
8
7
6
5
4
3
2

1
0.9
0.8
0.7
0.6
0.5
0.4

Printed Circuit Board Fuses - Axial and Radial Leaded

0.3
0.2

0.1
0.09
0.08
0.07
0.06
0.05
0.04

SS- 5 T1.6A

SS- 5 T1.25A

SS- 5 T2A

SS- 5 T1A

SS- 5 T2.5A

0.03
0.02

0.01
0.009
0.008
0.007
0.006
0.005

SS- 5 T800mA

SS- 5 T3.15A

SS- 5 T500mA

SS- 5 T4A

0.004

SS- 5 T5A

0.003

SS- 5 T6.3A

0.002

2

3

4 5 6 7 8 9 10

20

30

40

60 80 100

200

400

600

2000

0. 6 0. 8 1

800

0. 2 0. 3 0.4

1000

0.001

CURRENT IN AMPERES

PACKAGING CODE
Packaging Code
-AP
-BK

Visit us on the web at:
www.cooperbussmann.com

Description
Ammo-pack taped 1,000 per box
In bulk 200 per bag

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-43

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Subminiature Fuses
SR-5F Series, Fast Acting
Description
• Radial Leaded Fast Acting Thru-Hole Fuse
• Designed to UL 248-14
• Accepted for primary and secondary overcurrent
protection

RoHS
2002/95/EC

• Place directly into PCB or plug into BK/PCS holder
• Compatible with leaded and lead-free reflow and wave
solder
• Base/Cap is Nylon #66, UL 94V0

• Pins are Tin Plated Copper

Printed Circuit Board Fuses - Axial and Radial Leaded

ELECTRICAL CHARACTERISTICS
Rated
1 In
1.5 In
Current
min
max
400mA-10A
1hr
10 min

Dimensions

mm

⁄(inches)

2 In
max
2 min

Agency Information
• UL Listed: E146895 (400mA thru 10A)
• CSA: LR98127 (400mA thru 10A)
Specifications
• Solderability: EIA-186-9E Method 9
• High Frequency Vibration: MIL-STD-202F,
Method 201A
• Operating Temperature: -40°C to +125°C
• Soldering Heat Resistance: 260°C, 10S
(IEC 60068-2-20)
Ordering
• Specify product and packaging code
(i.e., SR-5F-1A-AP)

SPECIFICATIONS
Product
Code
SR-5F-800mA
SR-5F-1A
SR-5F-1.6A
SR-5F-2A
SR-5F-2.5A
SR-5F-3.15A
SR-5F-4A
*SR-5F-5A
*SR-5F-6.3A
*SR-5F-7A
*SR-5F-8A
*SR-5F-10A

Voltage Rating
AC
250V
250V
250V
250V
250V
250V
250V
250V
125V
125V
125V
125V

Interrupting
Rating @
Rated Voltage
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A

Typical DC Cold
Resistance
(ohms)
210
120
73
50
40
32
25
17
14
11
9
7

Typical Melting
I2t (A2s)
at 1ms
2.7
4.9
8.0
12.1
16.8
32.4
48.4
75.0
108
160
190
270

* Conducting Path min. 0.2mm2

OC-44

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Subminiature Fuses
SR-5F Series, Fast Acting

60

80 100

8000

40

6000

30

8000

10

6000

5 6 7 8 9

4000

4

2000

3

1000

2

600

0 . 6 0.8 1

800

0.4

400

0. 2 0. 3

20
0

TIME CURRENT CURVE

2000

1000
900
800
700
600
500
400
300
200

100
90
80
70
60
50
40
30

TIME IN SECONDS

20

10
9
8
7
6
5
4
3
2

1
0.9
0.8
0.7
0.6
0.5
0.4

SR-5F, 2.5A

0.2

0.1
0.09
0.08
0.07
0.06
0.05
0.04

SR-5F, 3.15A

SR-5F, 2A

SR-5F, 1.5A

SR-5F, 4A

SR-5F, 1A

SR-5F, 5A

0.03
0.02

0.01
0.009
0.008
0.007
0.006
0.005

Printed Circuit Board Fuses - Axial and Radial Leaded

0.3

SR-5F 6.3A

SR-5F 7A

SR-5F, 800mA

SR-5F 8A

0.004
0.003

SR-5F 10A

0.002

0.6

0.8 1

2

3

4

5 6 7 8 9

10

30

40

60

80 1 0 0

200

400

600

2000

0.4

1000

0. 2 0. 3

800

0.001

CURRENT IN AMPERES

PACKAGING CODE
Packaging Code
-AP
-BK

Visit us on the web at:
www.cooperbussmann.com

Description
Ammo-pack taped 1,000 per box
In bulk 200 per bag

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-45

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Subminiature Fuses
SS-5F Series, Fast Acting
Description
• Radial Leaded Fast Acting Thru-Hole Fuse
• Rectangular shape with reduced foot print
• Designed to UL 248-14
• Accepted for primary and secondary overcurrent
protection

RoHS
2002/95/EC

• Place directly into PCB or plug into BK/PCS holder
• Compatible with leaded and lead-free reflow and wave
solder
• Base/Cap is Nylon #66, UL 94V0

• Pins are Tin Plated Copper

Printed Circuit Board Fuses - Axial and Radial Leaded

Rated
Current
400mA-10A

ELECTRICAL CHARACTERISTICS
1 In
1.5 In
min
max
1hr
10 min

2 In
max
2 min

Dimensions

Agency Information
• UL Listed: E146895 (400mA thru 10A)
• CSA: LR98127 (400mA thru 10A)
Specifications
• Solderability: EIA-186-9E Method 9
• High Frequency Vibration: MIL-STD-202F,
Method 201A
• Operating Temperature: -40°C to +125°C
• Soldering Heat Resistance: 260°C, 10S
(IEC 60068-2-20)
Ordering
• Specify product and packaging code
(i.e., SS-5F-1A-AP)

⁄(inches)

mm

SPECIFICATIONS
Product
Code
SS-5F-800mA
SS-5F-1A
SS-5F-1.6A
SS-5F-2A
SS-5F-2.5A
SS-5F-3.15A
SS-5F-4A
*SS-5F-5A
*SS-5F-6.3A
*SS-5F-7A
*SS-5F-8A
*SS-5F-10A

Voltage Rating
AC
250V
250V
250V
250V
250V
250V
250V
250V
125V
125V
125V
125V

Interrupting
Rating @
Rated Voltage
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A

Typical DC Cold
Resistance
(ohms)
210
120
73
50
40
32
25
17
14
11
9
7

Typical Melting
I2t (A2s)
at 1ms
2.7
4.9
8.0
12.1
16.8
32.4
48.4
75.0
108
160
190
270

* Conducting Path min. 0.2mm2

OC-46

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Subminiature Fuses
SS-5F Series, Fast Acting

40

60

80 100

8000

30

6000

10

8000

5 6 7 8 9

4000

4

4000

3

6000

2

1000

0.8 1

2000

0 .6

600

0.4

800

0 .3

400

0 .2

20
0

TIME CURRENT CURVE

2000

1000
900
800
700
600
500
400
300
200

100
90
80
70
60
50
40
30

TIME IN SECONDS

20

10
9
8
7
6
5
4
3
2

1
0.9
0.8
0.7
0.6
0.5
0.4

SS-5F, 2.5A

0.2

SS-5F, 3.15A

SS-5F, 2A

0.1
0.09
0.08
0.07
0.06
0.05

SS-5F, 1.5A

SS-5F, 4A

SS-5F, 1A

0.04

Printed Circuit Board Fuses - Axial and Radial Leaded

0.3

SS-5F, 5A

0.03
0.02

SS-5F 6.3A

0.01
0.009
0.008
0.007
0.006
0.005

SS-5F 7A

SS-5F, 800mA

SS-5F 8A

0.004
0.003

SS-5F 10A

0.002

0.4

0.6

0.8

1

2

3

4

5 6 7 8 9

10

30

40

60

80 1 0 0

200

400

600

2000

0 .3

1000

0 .2

800

0.001

CURRENT IN AMPERES

PACKAGING CODE
Packaging Code
-AP
-BK

Visit us on the web at:
www.cooperbussmann.com

Description
Ammo-pack taped 1,000 per box
In bulk 200 per bag

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-47

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Subminiature Fuses
SR-5H Series, Time Lag
Description
• Radial Leaded Time Lag Thru-Hole Fuse
• Designed to IEC 60127-3, Sheet 4
• Ideal for electronic lighting ballasts
• cURus Recognized at 300V/100A
• Internationally accepted for primary and secondary
overcurrent protection

RoHS
2002/95/EC

• Place directly into PCB or plug into BK/PCS holder

• High inrush withstand capability
• Compatible with leaded and lead-free reflow and wave
solder
• Base/Cap is Nylon #66, UL 94V0

Dimensions

mm

⁄(inches)

• Pins are Tin Plated Copper

Printed Circuit Board Fuses - Axial and Radial Leaded

Rated
Current
1A-6.3A

ELECTRICAL CHARACTERISTICS
1.5 In 2.1 In
2.75 In
4 In
10 In
min max min max min max min
max
1hr 2 min 400 ms 10 sec 150 ms 3 sec 20 ms 150 ms

Agency Information
• cURus: E146895 (1A thru 5A @ 300V/100A)
• PSE: (1A thru 6.3A @ 300V/100A)
• VDE: (1A thru 5A)
• SEMKO: (1A thru 5A) Pending
• CCC (1A thru 6.3A) Pending
• EK: KTL (1A thru 6.3A) Pending
Specifications
• Solderability: EIA-186-9E Method 9
• High Frequency Vibration: MIL-STD-202F,
Method 201A
• Operating Temperature: -40°C to +125°C
• Soldering Heat Resistance: 260°C, 10S
(IEC 60068-2-20)
Ordering
• Specify product and packaging code
(i.e., SR-5H-1A-AP)

SPECIFICATIONS
Product
Code

Voltage Rating
AC

SR-5H-1A
SR-5H-1.25A
SR-5H-1.6A
SR-5H-2A
SR-5H-2.5A
SR-5H-3.15A
SR-5H-4A
*SR-5H-5A
*SR-5H-6.3A

250V
250V
250V
250V
250V
250V
250V
250V
250V

Interrupting
Rating @
Rated Voltage
100A
100A
100A
100A
100A
100A
100A
100A
100A

Typical DC Cold
Resistance
(ohms)
0.083
0.061
0.047
0.031
0.028
0.023
0.015
0.011
0.009

Typical Melting
I2t (A2s)
at 1ms
9
13
24
30
45
57
80
120
140

Maximum Power
Dissipation
(mW)
500
600
730
870
1000
1200
1400
1800
2000

* Conducting Path min. 0.2mm2

OC-48

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Subminiature Fuses
SR-5H Series, Time Lag

60

80 100

8000

40

6000

30

8000

10

4000

5 6 7 8 9

6000

4

2000

3

1000

2

600

0 . 6 0.8 1

800

0.4

400

0. 2 0. 3

20
0

TIME CURRENT CURVE

2000

1000
900
800
700
600
500
400
300
200

100
90
80
70
60
50
40
30

TIME IN SECONDS

20

10
9
8
7
6
5
4
3
2

1
0. 9
0. 8
0.7
0.6
0.5
0.4

0.2

0.1
0. 09
0. 08
0.07
0.06
0.05
0.04

Printed Circuit Board Fuses - Axial and Radial Leaded

0.3

SR-5H T1.6A

SR-5H T1.25A

SR-5H T2A

SR-5H T1A

SR-5H T2.5A

0.03
0.02

SR-5H T3.15A
0.01
0. 009
0. 008
0.007
0.006
0.005

SR-5H T4A

0.004

SR-5H T5A

0.003

SR-5H T6.3A

0.002

##

1

2

3

4

5 6 7 8 9

10

30

40

60

80 1 0 0

200

400

600

4000

0.6

2000

0.4

1000

0. 2 0. 3

800

0.001

CURRENT IN AMPERES

PACKAGING CODE
Packaging Code
-AP
-BK

Visit us on the web at:
www.cooperbussmann.com

Description
Ammo-pack taped 1,000 per box
In bulk 200 per bag

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-49

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 15mm Fuses
C515 Series, Time Delay, Glass Tube
Description
• Axial leaded, time delay
• 5mm x 15mm physical size
• Glass tube, nickel-plated brass endcap construction
• Leads are tin coated
• Optional sleeve is flexible flouropolymer
(U.L. flammability rating VW-1).
• UL Listed product meets standard UL 248-14
ELECTRICAL CHARACTERISTICS
Rated Current
Amp Rating
Opening Time
135%
60 minutes max.
125mA - 250mA
3 seconds min.
200%
120 seconds max.
100%
4 hours min.
470mA
30 minutes max.
350mA
600mA
90 seconds max.
2A
2 seconds max.
6A
500 milliseconds max.
135%
60 minutes max.
375mA - 7A
3 seconds min.
200%
120 seconds max.

Agency Information
• UL Listed Card: C515 125mA-250mA and 375mA-3A
(Guide JDYX, File E19180)
• UL Recognized Card: C515 350mA, and 3.5A-7A
(Guide JDYX2, File E19180)
• CSA Certification Card: C515 125mA-250mA and
375mA-3A (Class 1422-01, LR65063)

RoHS
2002/95/EC

Dimensions (mm)
Drawing Not to Scale

Ordering
• Specify packaging, product, and option code
• For -R option, drop mA or A from product code
(i.e. C515-1-R)
• With TR2 packaging code, lead wire length is 20.3mm

SPECIFICATIONS

Traditional Ferrule Fuses - Ferrule Type

Product Code
C515-125mA
C515-250mA
C515-350mA
C515-375mA
C515-500mA
C515-600mA
C515-750mA
C515-800mA
C515-1A
C515-1.25A
C515-1.5A
C515-1.6A
C515-2A
C515-2.25A
C515-2.5A
C515-3A
C515-3.5A
C515-4A
C515-5A
C515-6A
C515-7A
*
†
‡

Voltage
Rating
AC
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
125V
125V
125V
125V
125V

600V
25A
-

AC Interrupting
Rating
250V
35A
35A
35A
35A
35A
35A
35A
35A
35A
100A
100A
100A
100A
100A
100A
100A
-

125V
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
400A
400A
400A
400A
400A

Typical DC Cold
Resistance*
(ohms)
4.72
1.32
1.04
0.81
0.54
0.38
0.26
0.23
0.14
0.13
0.100
0.090
0.059
0.057
0.046
0.035
0.028
0.023
0.019
0.014
0.013

Typical
Melting I2t†
AC
0.101
0.467
1.169
1.531
2.280
6.982
9.162
10.544
14.289
22.961
31.989
35.156
60.256
97.724
78.163
80.426
149.279
233.346
354.813
471.360
710.500

Typical
Voltage
Drop (mV)‡
770
430
530
470
440
350
310
260
230
220
240
200
170
180
190
150
130
130
150
125
100

DC Cold Resistance (Measured at <10% of rated current)
Typical Melting I2t (A2Sec) (Minimum I2t at 10 times rated current)
Typical Voltage Drop (Voltage drop was measured at 25°C ambient temperature at rated current)

OC-50

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 15mm Fuses
C515 Series, Time Delay, Glass Tube
TIME CURRENT CURVE

7A

5A

1.25A
1.5A
1.6A
2A
2.25A
2.5A
3A
3.5A
4A

750mA

1A

500mA
600mA

250mA

10000

350mA
375mA

125mA

Nominal Time/Current Characteristics

1000

Pre-arcing time (s)

100

10

1

0.1

0.01

0.001
0.01

0.1

1

10

100

1000

Current (A)

PACKAGING CODE
Packaging Code
BK
TR2

Description
100 pieces of fuses packed into a cardboard carton
1,500 pieces of fuses packed into tape on a reel (20.3mm lead wire length)

OPTION CODE
Option Code
S
-R

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

Traditional Ferrule Fuses - Ferrule Type

Visit us on the web at:
www.cooperbussmann.com

Description
Insulation Sleeve
RoHS compliant version

OC-51

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 15mm Fuses
C517 Series, Fast Acting, Glass Tube
Description
• Axial leaded fast acting
• 5mm x 15mm physical size
• Glass tube, nickel-plated brass endcap construction
• Leads are plated with 95% tin, 5% lead
• Optional sleeve is flexible flouropolymer
(U.L. flammability rating VW-1).
• UL Listed product meets standard UL 248-14
• High breaking capacity for lighting ballast applications
ELECTRICAL CHARACTERISTICS
Rated Current
Amp Rating
Opening Time
100%
None
3A
135%
60 minutes max.
200%
2 seconds max.

RoHS
2002/95/EC

Dimensions (mm)
Drawing Not to Scale

Agency Information
• UL Listed Card: C517 3A (Guide JDYX, File E75865)
• UL Recognition Card: C517 3A
(Guide JDYX2, File E75865)
• CSA Certification Card: 3A (Class 1422-01, LR65063)
Ordering
• Specify packaging, product, and option code
• For -R option, drop mA or A from product code
(i.e. C517-3-R)

• With TR2 packaging code, lead wire length is 20.3mm

SPECIFICATIONS
Product Code

C517-3A

Interrupting Rating
at Rated Voltage
AC
100A
100A
10,000A

Typical DC Cold
Resistance*
(ohms)

Typical
Melting I2t†
AC

Typical
Voltage
Drop (mV)‡

0.34

5.87

141.7

DC Cold Resistance (Measured at <10% of rated current)
Typical Melting I2t (A2Sec) (Minimum I2t at 10 times rated current)
Typical Voltage Drop (Voltage drop was measured at 25°C ambient temperature at rated current)
350VAC is UL Recognized

Traditional Ferrule Fuses - Ferrule Type

*
†
‡
**

Voltage
Rating
AC
350V**
250V
125V

OC-52

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 15mm Fuses
C517 Series, Fast Acting, Glass Tube
TIME CURRENT CURVE

PACKAGING CODE
Packaging Code
BK
TR2

Description
100 pieces of fuses packed into a cardboard carton
1,500 pieces of fuses packed into tape on a reel (20.3mm lead wire length)

OPTION CODE

Visit us on the web at:
www.cooperbussmann.com

Description
Insulation Sleeve
RoHS compliant version

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

Traditional Ferrule Fuses - Ferrule Type

Option Code
S
-R

OC-53

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 15mm Fuses
C518 Series, Fast Acting, Glass Tube
Description
• Axial leaded fast acting
• 5mm x 15mm physical size
• Glass tube, nickel-plated brass endcap construction
• Leads are plated with 95% tin, 5% lead
• Optional sleeve is flexible flouropolymer
(U.L. flammability rating VW-1).
• UL Listed product meets standard UL 248-14
ELECTRICAL CHARACTERISTICS
Rated Current
Amp Rating
Opening Time
100%
None
100mA-5A
135%
60 minutes max.
200%
2 seconds max.

RoHS
2002/95/EC

Dimensions (mm)
Drawing Not to Scale

Agency Information
• UL Listed Card: Guide JDYX, File E19180
• CSA Certification Card: Class 1422-01, LR65063
Ordering
• Specify packaging, product, and option code
• For -R option, drop mA or A from product code
(i.e. C518-3-R)

• With TR2 packaging code, lead wire length is 20.3mm

SPECIFICATIONS
Product Code

Traditional Ferrule Fuses - Ferrule Type

C518-100mA
C518-125mA
C518-250mA
C518-375mA
C518-500mA
C518-750mA
C518-1.5A
C518-2A
C518-2.5A
C518-3A
C518-3.5A
C518-4A
C518-5A

Voltage
Rating
AC
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V

Interrupting Rating
at Rated Voltage
250VAC
125VAC
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
200A
10,000A
200A
10,000A

Typical DC Cold
Resistance*
(ohms)
22.30
15.20
5.66
2.53
1.66
0.91
0.900
0.064
0.046
0.038
0.032
0.022
0.018

Typical
Melting I2t†
AC
0.0010
0.0019
0.012
0.039
0.059
0.264
0.800
1.9
2.9
6.1
9.7
16.6
22.4

Typical
Voltage
Drop (mV)‡
2230
1930
1450
968
845
686
135
136
121
116
115
88
91

* DC Cold Resistance (Measured at <10% of rated current)
† Typical Melting I2t (A2Sec) (Minimum at 10 times rated current)
‡ Typical Voltage Drop (Voltage drop was measured at 20°C ambient temperature at rated current)

OC-54

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 15mm Fuses
C518 Series, Fast Acting, Glass Tube
TIME CURRENT CURVE

PACKAGING CODE
Packaging Code
BK
TR2

Description
100 pieces of fuses packed into a cardboard carton
1,500 pieces of fuses packed into tape on a reel (20.3mm lead wire length)

OPTION CODE

Visit us on the web at:
www.cooperbussmann.com

Description
Insulation Sleeve
RoHS compliant version

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

Traditional Ferrule Fuses - Ferrule Type

Option Code
S
-R

OC-55

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 15mm Fuses
C519 Series, Time Delay, Glass Tube
Description
• Time delay
• 5mm x 15mm physical size
• Glass tube, nickel-plated brass endcap construction
• Optional sleeve is flexible flouropolymer
(U.L. flammability rating VW-1).
• UL Listed product meets standard UL 248-14

RoHS
2002/95/EC

ELECTRICAL CHARACTERISTICS
Rated Current
Amp Rating
Opening Time
135%
60 minutes max.
125mA - 250mA
3 seconds min.
200%
120 seconds max.
100%
4 hours min.
470mA
30 minutes max.
350mA
600mA
90 seconds max.
2A
2 seconds max.
6A
500 milliseconds max.
135%
60 minutes max.
375mA - 5A
3 seconds min.
200%
120 seconds max.

Agency Information
• UL Listed Card: C519 125mA-250mA and 375mA-3A
(Guide JDYX, File E19180)
• UL Recognized Card: C519 350mA, and 3.5A-7A
(Guide JDYX2, File E19180)
• CSA Certification Card: C519 125mA-250mA and
375mA-3A (Class 1422-01, LR65063)

Dimensions
Drawing Not to Scale

Ordering
• Specify packaging, product, and option code
• For -R option, drop mA or A from product code
(i.e. C519-3-R)

SPECIFICATIONS

Traditional Ferrule Fuses - Ferrule Type

Product Code
C519-125mA
C519-250mA
C519-350mA
C519-375mA
C519-500mA
C519-600mA
C519-750mA
C519-1A
C519-1.25A
C519-1.5A
C519-1.6A
C519-2A
C519-2.25A
C519-2.5A
C519-3A
C519-3.5A
C519-4A
C519-5A

Voltage
Rating
AC
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
125V
125V
125V

Interrupting Rating
at Rated Voltage
600V
250V
125V
35A
10,000A
35A
10,000A
25A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
400A
400A
400A

Typical DC Cold
Resistance*
(ohms)
4.72
1.32
1.04
0.81
0.54
0.38
0.26
0.14
0.13
0.10
0.09
0.059
0.057
0.046
0.035
0.028
0.023
0.019

Typical
Melting I2t†
AC
0.101
0.467
1.169
1.531
2.280
6.982
9.162
14.289
22.961
31.989
31.156
60.256
97.724
78.163
80.426
149.279
233.346
354.813

Typical
Voltage
Drop (mV)‡
770
430
530
470
440
350
310
230
220
240
200
170
180
190
150
130
130
150

* DC Cold Resistance (Measured at <10% of rated current)
† Typical Melting I2t (A2Sec) (Typical I2t at 10 times rated current)
‡ Typical Voltage Drop (Voltage drop was measured at 25°C±3°C ambient temperature at rated current)

OC-56

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 15mm Fuses
C519 Series, Time Delay, Glass Tube
TIME CURRENT CURVE

PACKAGING CODE
Packaging Code
BK
BK1

Description
100 pieces of fuses packed into a cardboard carton
1,000 pieces of fuses packed into a cardboard carton

OPTION CODE

Visit us on the web at:
www.cooperbussmann.com

Description
Insulation Sleeve
RoHS compliant version

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

Traditional Ferrule Fuses - Ferrule Type

Option Code
S
-R

OC-57

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 15mm Fuses
C520 Series, Fast Acting, Glass Tube
Description
• Fast acting
• 5mm x 15mm physical size
• Glass tube, nickel-plated brass endcap construction
• Optional sleeve is flexible flouropolymer
(U.L. flammability rating VW-1).
• UL Listed product meets standard UL 248-14
ELECTRICAL CHARACTERISTICS
Rated Current
Amp Rating
Opening Time
100%
None
100mA - 5A
135%
1 hours max.
200%
2 seconds max.

RoHS
2002/95/EC

Dimensions
Drawing Not to Scale

Agency Information
• UL Listed Card: Guide JDYX, File E19180
• CSA Certification Card: Class 1422-01, LR65063
Ordering
• Specify packaging, product, and option code
• For -R option, drop mA or A from product code
(i.e. C520-3-R)

SPECIFICATIONS
Product Code
C520-100mA
C520-125mA
C520-250mA
C520-375mA
C520-500mA
C520-750mA
C520-1.5A
C520-2A
C520-2.5A
C520-3A
C520-3.5A
C520-4A
C520-5A

Voltage
Rating
AC
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V

Interrupting Rating
at Rated Voltage
250VAC
125VAC
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
200A
10,000A
200A
10,000A

Typical DC Cold
Resistance*
(ohms)
22.30
15.20
5.60
2.53
1.66
0.91
0.900
0.064
0.046
0.038
0.032
0.022
0.018

Typical
Melting I2t†
AC
0.0010
0.0019
0.012
0.039
0.059
0.264
0.800
1.9
2.9
6.1
9.7
16.6
22.4

Typical
Voltage
Drop (mV)‡
2230
1930
1450
968
845
686
135
136
121
116
115
88
91

Traditional Ferrule Fuses - Ferrule Type

* DC Cold Resistance (Measured at <10% of rated current)
† Typical Melting I2t (A2Sec) (maximum I2t at 10 times rated current)
‡ Typical Voltage Drop (Voltage drop was measured at 25°C±3°C ambient temperature at rated current)

OC-58

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 15mm Fuses
C520 Series, Fast Acting, Glass Tube
TIME CURRENT CURVE

PACKAGING CODE
Packaging Code
BK
BK1

Description
100 pieces of fuses packed into a cardboard carton
1,000 pieces of fuses packed into a cardboard carton

OPTION CODE

Visit us on the web at:
www.cooperbussmann.com

Description
Insulation Sleeve
RoHS compliant version

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

Traditional Ferrule Fuses - Ferrule Type

Option Code
S
-R

OC-59

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 20mm Fuses
S500 Series, Fast Acting, Glass Tube
Description
• Fast acting, low breaking capacity
• Optional Axial leads available
• 5mm x 20mm physical size
• Glass tube, nickel-plated brass endcap construction
• Designed to IEC 60127-2 (32mA-6.3A)
ELECTRICAL CHARACTERISTICS
1.5 In 2.1 In
2.75 In
4 In
10 In
In
min
max
min
max
min
max
max
32mA-100mA 60 min 30 min 10 ms 500 ms 3 ms 100 ms 20 ms
125mA-6.3A 60 min 30 min 50 ms 2 sec 10 ms 300 ms 20 ms

RoHS
2002/95/EC

Dimensions
Drawing Not to Scale

Agency Information
• UL Recognized Card: (32mA-10A) Guide JDYX2,
File E19180
• CSA Component Acceptance: File 53787
• cURus Recognition: Guide JDYX8, File E19180
• SEMKO Approval 160mA-10A
• VDE Approval 160mA-10A
• BSI Approval 160mA-10A
• IMQ Approval 160mA-10A
• CCC Approval 160mA-6.3A
Ordering
• Specify packaging, product, and option code
• For -R option, drop mA or A from product code
(i.e. S500-2-R)

• Ratings above 6.3A have a 0.8mm diameter lead
• With TR2 packaging code, lead wire length is 19.05mm

SPECIFICATIONS

Traditional Ferrule Fuses - Ferrule Type

Product Code
S500-32mA
S500-40mA
S500-50mA
S500-63mA
S500-80mA
S500-100mA
S500-125mA
S500-160mA
S500-200mA
S500-250mA
S500-315mA
S500-400mA
S500-500mA
S500-630mA
S500-800mA
S500-1A
S500-1.25A
S500-1.6A
S500-2A
S500-2.5A
S500-3.15A
S500-4A
S500-5A
S500-6.3A
S500-8A
S500-10A

Voltage
Rating
AC
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V

Interrupting Rating
at Rated Voltage (50Hz)
AC
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
40A
50A
63A
80A
100A

Typical DC
Cold Resistance
(ohms)*
41.5
25.5
17.5
12.9
5.2
3.9
2.9
9.2
7.0
4.5
3.2
1.9
0.27
0.21
0.15
0.13
0.098
0.068
0.044
0.035
0.026
0.022
0.015
0.010
N/A
N/A

Typical
Melting I2t (A2Sec)
AC†
0.000047
0.00011
0.00020
0.00057
0.0012
0.003
0.005
0.008
0.016
0.28
0.58
0.18
0.18
0.35
0.67
0.60
0.84
1.6
4.2
6.1
13
22
42
69
N/A
N/A

Maximum
Voltage
Drop (mV)‡
3200
2500
2400
2000
1200
1100
1000
2000
1700
1400
1300
1100
220
220
190
200
200
190
150
150
130
130
120
120
N/A
N/A

* DC Cold Resistance (Measured at <10% of rated current)
† Typical Melting I2t (I2t was measured at listed interrupting rating and rated voltage)
‡ Maximum Voltage Drop (Voltage drop was measured at 20°C ambient temperature at rated current)

OC-60

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 20mm Fuses
S500 Series, Fast Acting, Glass Tube
TIME CURRENT CURVE

PACKAGING CODE
Packaging Code
BK
BK1
TR2

Description
100 pieces of fuses packed into a cardboard carton
1,000 pieces of fuses packed into a poly bag
1,500 pieces of fuses packed into tape on a reel (19.05mm lead wire length)

OPTION CODE

Visit us on the web at:
www.cooperbussmann.com

Description
Axial leads - copper tinned wire with nickel plated brass overcaps
RoHS compliant version

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

Traditional Ferrule Fuses - Ferrule Type

Option Code
V
-R

OC-61

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 20mm Fuses
S501 Series, Fast Acting, Ceramic Tube
Description
• Fast acting
• Optional axial leads available
• 5mm x 20mm physical size
• Ceramic tube, nickel brass endcap construction
• Designed to IEC 60127-2

RoHS
2002/95/EC

ELECTRICAL CHARACTERISTICS
1.5 In 2.1 In
2.75 In
4 In
10 In
In
min
max
min
max
min
max
max
50mA-3.15A 60 min 30 min 10 ms 2 sec 3 ms 300 ms 20 ms
4A-10A
60 min 30 min 10 ms 3 sec 3 ms 300 ms 20 ms

Dimensions

Agency Information
• UL Recognized Card: (50mA-10A) Guide JDYX2,
File E19180
• CSA Component Acceptance: File 53787
• cURus Recognition: Guide JDYX8, File E19180
• SEMKO Approval 50mA, 160mA-10A
• VDE Approval 160mA-10A
• IMQ Approval 50mA-10A
• CCC Approval 160mA-10A
Ordering
• Specify packaging, product, and option code
• For -R option, drop mA or A from product code
(i.e. S501-2-R)

• Ratings above 6.3A have a 0.8mm diameter lead
• With TR2 packaging code, lead wire length is 19.05mm

Drawing Not to Scale

SPECIFICATIONS

Traditional Ferrule Fuses - Ferrule Type

Product Code
S501-50mA
S501-63mA
S501-80mA
S501-100mA
S501-125mA
S501-160mA
S501-200mA
S501-250mA
S501-315mA
S501-400mA
S501-500mA
S501-630mA
S501-800mA
S501-1A
S501-1.25A
S501-1.6A
S501-2A
S501-2.5A
S501-3.15A
S501-4A
S501-5A
S501-6.3A
S501-8A
S501-10A

Voltage
Rating
AC
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V

Interrupting Rating
at Rated Voltage
AC
1500A
1500A
1500A
1500A
1500A
1500A
1500A
1500A
1500A
1500A
1500A
1500A
1500A
1500A
1500A
1500A
1500A
1500A
1500A
1500A
1500A
1500A
1500A
1500A

Typical
Melting I2t (A2Sec)
AC
0.0017
0.0005
0.0011
0.0018
0.0037
0.008
0.020
0.027
0.010
0.018
0.038
0.064
0.097
0.480
0.9
1.9
2.0
3.9
8.1
14
25
48
N/A
N/A

Typical
Voltage
Drop (mV)‡
9000
3300
2600
2300
1900
1600
1350
1300
1400
1200
1050
1200
490
230
200
180
205
190
160
160
155
150
N/A
N/A

‡ Typical Voltage Drop (Voltage drop was measured at 20°C ambient temperature at rated current)

OC-62

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 20mm Fuses
S501 Series, Fast Acting, Ceramic Tube
TIME CURRENT CURVE

PACKAGING CODE
Packaging Code
BK
BK1
TR2

Description
100 pieces of fuses packed into a cardboard carton
1,000 pieces of fuses packed into a poly bag
1,500 pieces of fuses packed into tape on a reel (19.05mm lead wire length)

OPTION CODE

Visit us on the web at:
www.cooperbussmann.com

Description
Axial leads - copper tinned wire with nickel plated brass overcaps
RoHS compliant version

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

Traditional Ferrule Fuses - Ferrule Type

Option Code
V
-R

OC-63

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 20mm Fuses
S505 Series, Time Delay, Ceramic Tube
Description
• Time delay, high breaking capacity
• Optional axial leads available
• 5mm x 20mm physical size
• Ceramic tube, nickel plated brass endcap construction
• Designed to IEC 60127-2 (1A-12A)
ELECTRICAL CHARACTERISTICS
1.5 In 2.1 In
2.75 In
4 In
10 In
In
min max
min
max min max min max
<1A
60 min 30 min 250 ms 80 sec 50 ms 5 sec 5 ms 55 ms
1A-3.15A 60 min 30 min 1 sec 80 sec 95 ms 5 sec 10 ms 100 ms
4A-10A 60 min 30 min 1 sec 80 sec 150 ms 5 sec 20 ms 100 ms
12.5A
-30 min 1 sec 80 sec 150 ms 5 sec 20 ms 100 ms

Agency Information
• UL Recognized Card: (500mA-12A) Guide JDYX2,
File E19180
• CSA Component Acceptance: File 53787, 500mA-10A
• SEMKO Approval, 500mA-10A
• VDE Approval, 500mA-10A
• BSI Approval, 500mA-10A
• IMQ Approval, 500mA-10A
• CCC Approval, 500mA-6.3A
Ordering
• Specify packaging, product, and option code
• For -R option, drop mA or A from product code
(i.e. S505-3-R)

RoHS
2002/95/EC

Dimensions
Drawing Not to Scale

• Ratings above 6.3A have a 0.8mm diameter lead
• With TR2 packaging code, lead wire length is 19.05mm

SPECIFICATIONS
Product Code

Traditional Ferrule Fuses - Ferrule Type

S505-500mA
S505-800mA
S505-1A
S505-1.25A
S505-1.6A
S505-2A
S505-2.5A
S505-3.15A
S505-4A
S505-5A
S505-6.3A
S505-8A
S505-10A
S505-12A
*
†
‡
x

Voltage
Rating
AC
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V

Interrupting Rating
at Rated Voltage (50Hz)
AC
1500A
1500A
1500A
1500A
1500A
1500A
1500A
1500A
1500A
1500A
1500A
1500A
1500A
1000A

Typical DC
Cold Resistance
(ohms)*
0.507
0.237
0.138
0.089
0.060
0.041
0.030
0.021
0.015
0.011
0.008
0.007
0.006
0.005

Typical
Melting I2t (A2Sec)
AC†
0.74
1.6
3.5
7.6
14
27
52
98
197
311
397
714x

Typical
Voltage
Drop (mV)‡
295
189
170
150
130
110
100
90
85
80
75
75
72
77

DC Cold Resistance (Measured at <10% of rated current)
Typical Melting I2t (I2t was measured at listed interrupting rating and rated voltage)
Typical Voltage Drop (Voltage drop was measured at 20°C ambient temperature at rated current)
Typical Melting I2t was measured at 10 times the rated current under DC

OC-64

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 20mm Fuses
S505 Series, Time Delay, Ceramic Tube
TIME CURRENT CURVE

PACKAGING CODE
Packaging Code
BK
BK1
TR2

Description
100 pieces of fuses packed into a cardboard carton
1,000 pieces of fuses packed into a poly bag
1,500 pieces of fuses packed into tape on a reel (19.05mm lead wire length)

OPTION CODE

Visit us on the web at:
www.cooperbussmann.com

Description
Axial leads - copper tinned wire with nickel plated brass overcaps
RoHS compliant version

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

Traditional Ferrule Fuses - Ferrule Type

Option Code
V
-R

OC-65

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 20mm Fuses
S506 Series, Time Delay, Glass Tube
Description
• Time delay, low breaking capacity
• Optional axial leads available
• 5mm x 20mm physical size
• Glass tube, nickel-plated brass endcap construction
• Designed to IEC 60127-2 (32mA-10A)
S506 ELECTRICAL CHARACTERISTICS
2.1 In
2.75 In
4 In
10 In
In
max
min
max
min
max
min
max
32mA-100mA 2 min 200 ms 10 sec 40 ms 3 sec 10 ms 300 ms
125mA-6.3A 2 min 600 ms 10 sec 150 ms 3 sec 20 ms 300 ms
8A-15A
2 min 600 ms 10 sec 150 ms 3 sec 20 ms 300 ms

Agency Information
• UL Recognized Card: (32mA-15A) Guide JDYX2,
File E19180
• CSA Component Acceptance: File 53787
• cURus Recognition: Guide JDYX8, File E19180
• SEMKO Approval, 32mA-10A
• VDE Approval, 32mA-10A
• BSI Approval, 32mA-10A
• IMQ Approval, 32mA-10A
• MITI Approval, 32mA-6.3A
• CCC Approval, 32mA-6.3A
Ordering
• Specify packaging, product, and option code
• For -R option, drop mA or A from product code
(i.e. S506-2-R)

RoHS
2002/95/EC

Dimensions
Drawing Not to Scale

• Ratings above 6.3A have a 0.8mm diameter lead
• With TR2 packaging code, lead wire length is 19.05mm

SPECIFICATIONS

Traditional Ferrule Fuses - Ferrule Type

Product Code
S506-32mA
S506-40mA
S506-50mA
S506-63mA
S506-80mA
S506-100mA
S506-125mA
S506-160mA
S506-200mA
S506-250mA
S506-315mA
S506-400mA
S506-500mA
S506-630mA
S506-800mA
S506-1A
S506-1.25A
S506-1.6A
S506-2A
S506-2.5A
S506-3.15A
S506-4A
S506-5A
S506-6.3A
S506-8A
S506-10A
S506-12.5A
S506-15A

Voltage
Rating
AC
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V

Interrupting Rating
at Rated Voltage (50Hz)
AC
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
40A
50A
63A
80A
100A
125A
125A

Typical DC
Cold Resistance
(ohms)*
21.0
13.90
9.24
6.96
4.42
2.74
1.97
1.27
1.00
0.640
0.450
0.308
0.183
0.186
0.128
0.062
0.045
0.038
0.028
0.023
0.017
0.012
0.008
0.008
0.006
0.004
0.004
0.004

Minimum
Pre-Arching I2t
(A2Sec) AC†
0.0014
0.0034
0.006
0.012
0.015
0.022
0.034
0.052
0.078
0.17
0.41
0.61
0.67
1.0
2.2
2.7
6.7
9.7
15
25
51
88
150
214
192
420
812
1029

Typical
Voltage
Drop (mV)‡
1050
920
800
760
580
490
390
320
340
270
250
210
140
150
75
80
70
70
68
68
66
66
66
60
55
54
45
73

* DC Cold Resistance (Measured at <10% of rated current)
† Minimum Pre-Arching I2t (Measured at 10 In and rated voltage)
‡ Typical Voltage Drop (Voltage drop was measured at 20°C ambient temperature at rated current)

OC-66

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 20mm Fuses
S506 Series, Time Delay, Glass Tube
TIME CURRENT CURVE

PACKAGING CODE
Packaging Code
BK
BK1
TR2

Description
100 pieces of fuses packed into a cardboard carton
1,000 pieces of fuses packed into a poly bag
1,500 pieces of fuses packed into tape on a reel (19.05mm lead wire length)

OPTION CODE

Visit us on the web at:
www.cooperbussmann.com

Description
Axial leads - copper tinned wire with nickel plated brass overcaps
RoHS compliant version

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

Traditional Ferrule Fuses - Ferrule Type

Option Code
V
-R

OC-67

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 20mm Fuses
GMA Series, Fast Acting, Glass Tube
Description
• Fast acting, low breaking capacity
• Optional axial leads available
• 5mm x 20mm physical size
• Glass tube, nickel-plated brass endcap construction
• Designed to UL/CSA 248-14

RoHS
2002/95/EC

ELECTRICAL CHARACTERISTICS
Rated Current % of Amp Rating
Opening Time
100%
None
63mA - 10A
135%
60 minutes maximum
200%
2 minutes maximum

Agency Information
• UL Listed, Guide JDYX, File E19180, 63mA-6A
• UL Recognized Card: (7A-15A) Guide JDYX2,
File E19180
• CSA Certified, Class 1422-01, File E65063, 63mA-6A
• MITI Approval, 1A-15A
• CCC Approval, 63mA-6A
Ordering
• Specify packaging, product, and option code
• For -R option, drop mA or A from product code
(i.e. GMA-2-R)

Dimensions

⁄(inches)

mm

38.10mm
10
(±
±.38)
.3
5.54mm
(±.20)

(±

21.10mm
0m
(±.81)
81

(±

5.2mm
(+0.1/-0.2)

38.10mm
0m
(±.3
38)
0.65mm
(REF)

• Ratings above 6.3A have a 0.8mm diameter lead
• With TR2 packaging code, lead wire length is 19.05mm

SPECIFICATIONS

Traditional Ferrule Fuses - Ferrule Type

Product Code
GMA-63mA
GMA-100mA
GMA-125mA
GMA-200mA
GMA-250mA
GMA-300mA
GMA-315mA
GMA-500mA
GMA-600mA
GMA-750mA
GMA-800mA
GMA-1A
GMA-1.25A
GMA-1.5A
GMA-1.6A
GMA-2A
GMA-2.5A
GMA-3A
GMA-3.15A
GMA-3.5A
GMA-4A
GMA-5A
GMA-6A
GMA-7A
GMA-8A
GMA-10A
GMA-15A
*
**
†
‡

Voltage
Rating
AC
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
125V
125V
125V
125V
125V
125V
125V
125V
125V

AC Interrupting
Rating*
250V
125V
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
200A
200A
200A
150A

Typical DC Cold
Resistance
(ohms)**
0.454
0.256
0.186
0.170
0.163
0.122
0.090
0.080
0.066
0.046
0.039
0.036
0.030
0.026
0.021
0.017
0.012
0.009
0.006
0.004

Typical
Pre-Arc I2t
AC†
0.00024
0.0001
0.0024
0.001
0.018
0.019
0.019
0.15
0.32
0.47
0.70
0.48
0.84
1.6
2.0
3.1
4.9
8.8
9.7
13
19
29
45
150
280
280
950

Maximum
Voltage
Drop (mV)‡
4700
4300
2600
3400
2200
470
450
230
200
200
180
300
290
270
260
250
240
215
210
210
205
200
180
110
110
110
100

Interrupting ratings: Interrupting ratings for 63mA - 6A were measured at 70% - 80% power factor on AC. The interrupting ratings for 7A - 15A were measured at 100% power factor on AC.
DC Cold Resistance (Measured at <10% of rated current)
Typical Pre-Arching I2t (I2t was measured at listed interrupting rating and rated voltage)
Maximum Voltage drop (Voltage drop was measured at 20°C ambient temperature at rated current)

OC-68

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 20mm Fuses
GMA Series, Fast Acting, Glass Tube

3A
4A
5A
6A

2.5A

1.5A

1A

1.25A
2A

TIME CURRENT CURVE

100

AMPERE
RATING

TIME IN SECONDS

10

1

200

100

10

1

.01

.4

.1

CURRENT IN AMPERES

PACKAGING CODE
Packaging Code
BK
BK1
TR2

Description
100 pieces of fuses packed into a cardboard carton
1,000 pieces of fuses packed into a poly bag
1,500 pieces of fuses packed into tape on a reel (19.05mm lead wire length)

OPTION CODE

Visit us on the web at:
www.cooperbussmann.com

Description
Axial leads - copper tinned wire with nickel plated brass overcaps
RoHS compliant version

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

Traditional Ferrule Fuses - Ferrule Type

Option Code
V
-R

OC-69

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 20mm Fuses
GMC Series Medium Time Delay, Glass Tube
Description
• Medium time delay, low breaking capacity
• Optional axial leads available
• 5mm x 20mm physical size
• Glass tube, nickel-plated brass endcap construction
• Designed to UL/CSA 248-14

RoHS
2002/95/EC

ELECTRICAL CHARACTERISTICS
Rated Current % of Amp Rating
Opening Time
100%
None
63mA - 10A
135%
60 minutes maximum
200%
2 minutes maximum

Agency Information
• UL Listed, Guide JDYX, File E19180, 63mA-6.3A
• UL Recognized Card: (7A-10A) Guide JDYX2,
File E19180
• CSA Certified, Class 1422-01, File E65063, 63mA-6.3A
• MITI Approval, 1A-10A
• CCC Approval, 500mA-6.3A
Ordering
• Specify packaging, product, and option code
• For -R option, drop mA or A from product code
(i.e. GMC-2-R)

Dimensions

⁄(inches)

mm

38.10mm
0m
(±
±.38)
.3
5.54mm
(±.20)

(±

21.10mm
0m
(±.81)
81

±0.5)

5.2mm
(+0.1/-0.2)

38.10mm
0m
(±.38)
38
0.65mm
(REF)

• Ratings above 6.3A have a 0.8mm diameter lead
• With TR2 packaging code, lead wire length is 19.05mm

SPECIFICATIONS

Traditional Ferrule Fuses - Ferrule Type

Product Code
GMC-63mA
GMC-80mA
GMC-100mA
GMC-125mA
GMC-150mA
GMC-160mA
GMC-200mA
GMC-250mA
GMC-300mA
GMC-315mA
GMC-400mA
GMC-500mA
GMC-600mA
GMC-630mA
GMC-700mA
GMC-750mA
GMC-800mA
GMC-1A
GMC-1.25A
GMC-1.5A
GMC-1.6A
GMC-2A
GMC-2.5A
GMC-3A
GMC-3.15A
GMC-3.5A
GMC-4A
GMC-5A
GMC-6A
GMC-6.3A
GMC-7A
GMC-8A
GMC-10A
*
**
†
‡

Voltage
Rating
AC
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
125V
125V
125V
125V
125V
125V
125V
125V

AC Interrupting
Rating*
250V
125V
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
200A
200A
200A

Typical DC Cold
Resistance
(ohms)**
10.350
4.775
3.400
2.555
2.295
1.395
0.965
0.838
0.685
0.615
0.335
0.282
0.246
0.213
0.213
0.180
0.156
0.098
0.076
0.067
0.043
0.035
0.026
0.025
0.022
0.019
0.014
0.013
0.012
0.012
0.009
0.007

Typical
Pre-Arc I2t
AC†
0.0027
0.0050
0.0094
0.014
0.022
0.022
0.032
0.046
0.081
0.081
0.18
0.41
0.60
0.66
0.85
0.85
0.85
1.8
3.4
5.4
5.8
8.9
13
19
23
25
36
58
88
110
150
200
300

Maximum
Voltage
Drop (mV)‡
1400
1400
1200
1000
800
730
650
490
580
480
510
370
360
360
340
320
290
250
200
190
160
130
130
130
130
130
120
120
120
120
120
110
110

Interrupting ratings: Interrupting ratings for 63mA - 6.3A were measured at 70% - 80% power factor on AC. The interrupting ratings for 7A - 10A were measured at 100% power factor on AC.
DC Cold Resistance (Measured at <10% of rated current)
Typical Pre-Arching I2t (I2t was measured at listed interrupting rating and rated voltage)
Maximum Voltage drop (Voltage drop was measured at 20°C ambient temperature at rated current)

OC-70

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 20mm Fuses
GMC Series Medium Time Delay, Glass Tube

62mA
80mA

100mA
125mA
150mA
200mA
250mA
315mA 300mA
400mA
500mA
750mA
800mA
1A
1.5A
1.6A
2A
2.5A
3A
3.5A
4A
5A
6A
6.3A
7A
8A
10A

TIME CURRENT CURVE

100

AMPERE
RATING

TIME IN SECONDS

10

1

100

10

1

.01

.1

.1

CURRENT IN AMPERES

PACKAGING CODE
Packaging Code
BK
BK1
TR2

Description
100 pieces of fuses packed into a cardboard carton
1,000 pieces of fuses packed into a poly bag
1,500 pieces of fuses packed into tape on a reel (19.05mm lead wire length)

OPTION CODE

Visit us on the web at:
www.cooperbussmann.com

Description
Axial leads - copper tinned wire with nickel plated brass overcaps
RoHS compliant version

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

Traditional Ferrule Fuses - Ferrule Type

Option Code
V
-R

OC-71

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 20mm Fuses
GMD Series, Time Delay, Glass Tube
Description
• Time delay, low breaking capacity
• Optional axial leads available
• 5mm x 20mm physical size
• Glass tube, nickel-plated brass endcap construction
• Designed to UL/CSA 248-14

RoHS
2002/95/EC

ELECTRICAL CHARACTERISTICS
Rated Current % of Amp Rating
Opening Time
100%
None
135%
60 minutes maximum
100mA - 4A
5 seconds minimum
200%
2 minutes maximum

Dimensions

mm

⁄(inches)

38.10mm
(±.38)
5.54mm
(±.20)

Agency Information
• UL Listed, Guide JDYX, File E19180, 125mA-3A
• UL Recognition Card: (4A) Guide JDYX2, File E19180
• CSA Certified, Class 1422-01, File E65063
Ordering
• Specify packaging, product, and option code
• For -R option, drop mA or A from product code
(i.e. GMD-3-R)

21.10mm
(±.81)
(±

( 0.5)

5.2mm
(+0.1/-0.2)

(±.38)
0.65mm
(REF)

• With TR2 packaging code, lead wire length is 19.05mm

SPECIFICATIONS

Traditional Ferrule Fuses - Ferrule Type

Product Code
GMD-125mA
GMD-150mA
GMD-200mA
GMD-250mA
GMD-300mA
GMD-315mA
GMD-375mA
GMD-400mA
GMD-500mA
GMD-600mA
GMD-630mA
GMD-750mA
GMD-800mA
GMD-1A
GMD-1.2A
GMD-1.25A
GMD-1.5A
GMD-1.6A
GMD-2A
GMD-2.5A
GMD-3A
GMD-4A
*
**
†
‡

Voltage
Rating
AC
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V

AC Interrupting
Rating*
250V
125V
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
200A
10,000A

Typical DC Cold
Resistance
(ohms)**
-

Typical
Pre-Arc I2t
AC†
0.043
0.046
0.20
0.40
0.65
0.89
0.89
1.2
1.4
3.1
3.1
4.7
6.6
12
16
16
25
27
42
94
145
300

Maximum
Voltage
Drop (mV)‡
1600
1200
1100
950
800
750
650
600
550
450
450
410
380
310
280
245
240
220
200
195
190
190

Interrupting ratings: Interrupting ratings for 125mA - 3A were measured at 70% - 80% power factor on AC. The interrupting ratings for 4A were measured at 100% power factor on AC.
DC Cold Resistance (Measured at <10% of rated current)
Typical Pre-Arching I2t (I2t was measured at listed interrupting rating and rated voltage)
Maximum Voltage drop (Voltage drop was measured at 20°C ambient temperature at rated current)

OC-72

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 20mm Fuses
GMD Series, Time Delay, Glass Tube

1.6A
1.5A
2A
2.5A
3A

1A

300mA
400mA
500mA
630mA

125mA
160mA
200mA

750mA
800mA

TIME CURRENT CURVE

AMPERE
RATING

100

TIME IN SECONDS

10

1

100

10

1

.01

.1

.1

CURRENT IN AMPERES

PACKAGING CODE
Packaging Code
BK
BK1
TR2

Description
100 pieces of fuses packed into a cardboard carton
1,000 pieces of fuses packed into a poly bag
1,500 pieces of fuses packed into tape on a reel (19.05mm lead wire length)

OPTION CODE

Visit us on the web at:
www.cooperbussmann.com

Description
Axial leads - copper tinned wire with nickel plated brass overcaps
RoHS compliant version

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

Traditional Ferrule Fuses - Ferrule Type

Option Code
V
-R

OC-73

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

1/4" x 5/8" Fuses
AGA Series, Fast Acting, Glass Tube
Description
• Fast acting
• 1/4" x 5/8" (6.3mm x 15.9mm) physical size
• Glass tube, nickel-plated brass endcap construction
• Optional leaded version available
• UL Listed product meets standard 248-14
ELECTRICAL CHARACTERISTICS
Rated Current % of Amp Rating
Opening Time
100%
4 hours minimum
1/16 - 10A
135%
60 minutes maximum
200%
120 seconds maximum

Dimensions

mm

⁄(inches)

Agency Information
• UL Listed, Guide JDYX, File E19180 (AGA 0-1 1/2A)
• UL Listed, Guide JDYX, File E19180 (AGA-V 0-5A)
• UL Recognized, Guide JDYX2, File E19180
(AGA 2A-12A)
• UL Recognized, Guide JDYX2, File E19180
(AGA-V 6A-12A)
Ordering
• Specify packaging, product, and option code

SPECIFICATIONS

Traditional Ferrule Fuses - Ferrule Type

Product Code
AGA-1/16
AGA-1/10
AGA-1/8
AGA-1/4
AGA-3/8
AGA-1/2
AGA-6/10
AGA-3/4
AGA-1
AGA-1-1/2
AGA-2
AGA-2-1/2
AGA-3
AGA-5
AGA-6
AGA-7
AGA-7-1/2
AGA-10
AGA-15
AGA-20
AGA-25
AGA-30

Voltage
Rating
AC
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V
125 V
32 V
32 V
32 V
32 V
32 V
32 V
32 V
32 V

AC Interrupting
Rating*
125V
32V
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
200A
200A
200A
200A
1,000A
1,000A
1,000A
1,000A
1,000A
1,000A
1,000A
1,000A

Typical DC Cold
Resistance
(ohms)**
13.250
6.250
4.000
1.740
0.925
0.300
0.250
0.179
0.118
0.077
0.054
0.040
0.031
0.017
0.014
0.012
0.010
0.007
0.005
0.003
0.003
0.002

Typical
Melt
AC
DC
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
-

Typical
Voltage
Drop (V)‡
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD

* Interrupting Rating: Interrupting ratings for 2A-5A has been measured at 70%-80% power factor. ratings for 5.1A-12A were measured at 80% power factor.
** DC Cold Resistance (Measured at <10% of rated current)
‡ Typical Voltage Drop (Measured at 25°C±3°C ambient temperature at rated current)

OC-74

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

1/4" x 5/8" Fuses
AGA Series, Fast Acting, Glass Tube
TIME CURRENT CURVE

30

15
20

10

5

2
3

6/10

15/100

1

TIME IN SECONDS

TIME IN SECONDS

1/16

CURRENT IN AMPERES

CURRENT IN AMPERES

PACKAGING CODE
Packaging Code
BK
BK8

Description
100 pieces of fuses packed into a cardboard carton
8,000 pieces of fuses packed into a cardboard carton

OPTION CODE

Visit us on the web at:
www.cooperbussmann.com

Description
Board Washable - Hermetically sealed to withstand aqueous cleaning
Axial leads - copper tinned wire with nickel plated brass overcaps

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

Traditional Ferrule Fuses - Ferrule Type

Option Code
B
V

OC-75

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

1/4" x 1" Fuses
AGX Series, Fast Acting, Glass Tube
Description
• Fast acting
• 1/4" x 1 (6.3mm x 25.4mm) physical size
• Glass tube, nickel-plated brass endcap construction
• For instruments, electronic and small appliance circuits
• UL Listed product meets standard 248-14
ELECTRICAL CHARACTERISTICS
Rated Current % of Amp Rating
Opening Time
110%
4 hours minimum
1/500 - 30A
135%
60 minutes maximum
1/500 - 2A
200%
5 seconds maximum
2.5A - 30A
200%
2 minutes maximum

Dimensions

mm

⁄(inches)

Agency Information
• UL Listed Card: AGX 0-5A (Guide JDYX, File E19180)
• UL Recognized Card: AGX 6-20A (Guide JDYX2,
File E19180)
• CSA Component Acceptance Card
(Class No. 1422-01, File 53787)
Ordering
• Specify packaging, product, and option code

SPECIFICATIONS

Traditional Ferrule Fuses - Ferrule Type

Product Code
AGX-1/500
AGX-1/200
AGX-1/100
AGX-1/32
AGX-1/16
AGX-1/10
AGX-1/8
AGX-3/16
AGX-2/10
AGX-1/4
AGX-3/10
AGX-3/8
AGX-4/10
AGX-1/2
AGX-3/4
AGX-1
AGX-1-1/4
AGX-1-1/2
AGX-2
AGX-2-1/2
AGX-3
AGX-4
AGX-5
AGX-6
AGX-7
AGX-8
AGX-10
AGX-15
AGX-20
AGX-25
AGX-30

Voltage
Rating
AC
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
125V
125V
125V
125V
125V
125V
32V
32V
32V
32V
32V
32V

250VAC
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
100A
100A
100A
100A
100A
-

Interrupting
Rating
125VAC
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
1,000A
1,000A
-

32VAC
1,000A
1,000A
1,000A
1,000A
1,000A
1,000A

Typical DC Cold
Resistance
(ohms)**
1750.00000
285.00000
155.00000
35.00000
22.50000
10.25000
5.41000
3.11500
2.66000
2.79000
1.42500
0.93050
0.89900
0.47850
0.26000
0.16250
0.12750
0.09400
0.06825
0.04930
0.03825
0.02700
0.02050
0.01475
0.01275
0.01100
0.00867
0.00510
0.00358
0.00275
0.00215

** DC Cold Resistance (Measured at <10% of rated current)

OC-76

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

1/4" x 1" Fuses
AGX Series, Fast Acting, Glass Tube
TIME CURRENT CURVE

5

2

1

1/4

CURRENT IN AMP ERES

TIME IN SECONDS

TIME IN SECONDS

CURRENT IN AMP ERES

PACKAGING CODE
Packaging Code
BK

Description
100 pieces of fuses packed into a cardboard carton

OPTION CODE

Visit us on the web at:
www.cooperbussmann.com

Description
Board Washable - Hermetically sealed to withstand aqueous cleaning
Axial leads - copper tinned wire with nickel plated brass overcaps

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

Traditional Ferrule Fuses - Ferrule Type

Option Code
B
V

OC-77

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

1/4" x 1-1/4" Fuses
TDC Series, Glass Tube
Description
TDC10
• Fast Acting
• 1/4" x 1-1/4" physical size
• Glass tube, electroplated brass endcap construction
• Interrupting rating equals 10 times rated current
• Designed to British Standard BS2950A
TDC11
• Time Delay
• 1/4" x 1-1/4" physical size
• Glass tube, electroplated brass endcap construction
• Interrupting rating equals 10 times rated current
Ordering
• Specify packaging and product code

Dimensions

mm

⁄(inches)

6.35mm
35m

31.8mm

SPECIFICATIONS - TDC10
Product Code
TDC10-50MA
TDC10-60MA
TDC10-100MA
TDC10-150MA
TDC10-250MA
TDC10-500MA
TDC10-750MA
TDC10-1A
TDC10-1.5A
TDC10-2A
TDC10-3A
TDC10-5A
TDC10-7A
TDC10-10A
TDC10-12A
TDC10-15A
TDC10-20A
TDC10-25A

Voltage
Rating
AC
1000V
1000V
1000V
1000V
1000V
750V
500V
350V
250V
250V
250V
250V
150V
100V
32V
32V
32V
32V

1000V
500MA
600MA
1A
1.5A
2.5A
-

750V
5A
-

500V
7.5A
-

Interrupting
Rating*
350V
250V
10A
15A
20A
30A
50A
-

150V
70A
-

100V
100A
-

32V
120A
150A
200A
250A

SPECIFICATIONS - TDC11

Traditional Ferrule Fuses - Ferrule Type

Product Code
TDC11-50MA
TDC11-60MA
TDC11-100MA
TDC11-150MA
TDC11-250MA
TDC11-500MA
TDC11-750MA
TDC11-1A
TDC11-1.5A
TDC11-2A
TDC11-3A
TDC11-5A
TDC11-7A
TDC11-10A

Voltage
Rating
AC
1000V
1000V
1000V
1000V
1000V
750V
500V
350V
250V
250V
250V
250V
150V
100V

1000V
500MA
600MA
1A
1.5A
2.5A
-

750V
5A
-

500V
7.5A
-

Interrupting
Rating*
350V
10A
-

250V
15A
20A
30A
50A
-

150V
70A
-

100V
100A

* Interrupting Rating: Interrupting rating is 10 times the rated current.
** DC Cold Resistance (Measured at <10% of rated current)

OC-78

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

1/4" x 1-1/4" Fuses
TDC Series, Glass Tube
TIME CURRENT CURVE
TDC10

TDC11

10

10

.1

100

.01

10

.01

1

.1

.1

.1

TIMES RATED CURRENT

100

1

10

1

1

TIME IN SECONDS

100

TIME IN SECONDS

100

TIMES RATED CURRENT

PACKAGING CODE
Packaging Code
BK
BK1

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

Traditional Ferrule Fuses - Ferrule Type

Visit us on the web at:
www.cooperbussmann.com

Description
100 pieces of fuses packed into a cardboard carton
1,000 pieces of fuses packed into a cardboard carton

OC-79

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

1/4" x 1-1/4" Fuses
ABC Series, Fast Acting, Ceramic Tube
Description
• Fast-acting, ceramic tube
• Optional axial leads available
• 1/4 x 1-1/4 (6.3mm x 32mm) physical size
• Ceramic tube, nickel-plated brass endcap construction
• UL Listed product meets standard 248-14

RoHS
2002/95/EC

ELECTRICAL CHARACTERISTICS
% of Amp Rating
Opening Time
100%
4 Hours Minimum
135%
60 Minutes maximum
200%
120 Seconds Maximum

Agency Information
• UL Listed Guide & File numbers (ABC 1/4 - 15A):
JDYX & E19180.
• UL Recognition Guide & File numbers (ABC 18 - 30A):
JDYX2 & E19180.
• CSA Certification Record No: 053787 C 000 &
Class No: 1422 01 & 1422 30.
Environmental Data
• Shock: 1/4A and 1/2A – MIL-STD-202,
Method 213, Test Condition I;
1A thru 30A – MIL-STD-202, Method 207,
(HI Shock)
• Vibration: 1/4A thru 30A – MIL-STD-202,
Method 204, Test Condition C (Except 5g, 500HZ)
Ordering
• Specify packaging, product, and option code

Dimensions (mm⁄in)
Drawing Not to Scale

SPECIFICATIONS

Traditional Ferrule Fuses - Ferrule Type

Product
Code
ABC-1/4
ABC-1/2
ABC-3/4
ABC-1
ABC-1-1/2
ABC-2
ABC-2-1/2
ABC-3
ABC-4
ABC-5
ABC-6
ABC-7
ABC-8
ABC-10
ABC-12
ABC-15
ABC-20
ABC-25
ABC-30

Voltage
Rating
AC
DC
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
125V
125V
125V
125V

AC Interrupting
Rating
250V
125V
35A
10000A
35A
10000A
35A
10000A
35A
10000A
100A
10000A
100A
10000A
100A
10000A
100A
10000A
200A
10000A
200A
10000A
200A
10000A
200A
10000A
200A
10000A
200A
10000A
750A
10000A
750A
10000A
400A
1000A
1000A
1000A

DC Interrupting
Rating
125V
75V
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
400A
1000A
400A
1000A

Typical DC Cold
Resistance**
(ohms)
3.000
0.788
0.303
0.197
0.1175
0.0755
0.05875
0.0435
0.02975
0.0286
0.02315
0.0183
0.0146
0.01205
0.0068
0.005425
0.00366
0.00263
0.002225

Typical
Melting I2t†
AC
0.02
0.19
0.8
1.4
2.9
4.2
8.53
19.5
29.1
16.4
31.6
73.2
111.9
215.6
129.6
200.2
550.8
839.3
1,429

Typical
Voltage
Drop‡
3.25
0.51
0.42
0.35
0.35
0.25
0.26
0.25
0.25
0.23
0.24
0.20
0.17
0.15
0.11
0.12
0.13
0.12
0.14

** DC Cold Resistance (Measured at ≤10% of rated current)
† Typical Melting I2t (A2Sec) (I2t was measured at listed interrupting rating and rated voltage. Measured at 70% to 80% power factor on AC)
‡ Typical Voltage Drop (Voltage drop was measured at 25°C±3°C ambient temperature at rated current)

OC-80

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

1/4" x 1-1/4" Fuses
ABC Series, Fast Acting, Ceramic Tube
TIME CURRENT CURVE

PACKAGING CODE
Packaging Code
BK
BK1
BK8

Description
100 pieces of fuses packed into a cardboard carton
1,000 pieces of fuses packed into a cardboard carton
8,000 pieces of fuses packed into a cardboard carton

OPTION CODE

Visit us on the web at:
www.cooperbussmann.com

Description
Board Washable - Hermetically sealed to withstand aqueous cleaning
Axial leads - copper tinned wire with nickel plated brass overcaps
RoHS compliant version

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

Traditional Ferrule Fuses - Ferrule Type

Option Code
B
V
-R

OC-81

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

1/4" x 1-1/4" Fuses
AGC Series, Fast Acting, Glass Tube
Description
• Fast-acting, glass tube
• Optional axial leads available
• 1/4 x 1-1/4 (6.3mm x 32mm) physical size
• Glass tube, nickel-plated brass endcap construction
• UL Listed product meets standard 248-14

RoHS
2002/95/EC

ELECTRICAL CHARACTERISTICS
% of Amp Rating
Opening Time
100%
None
135%
60 Minutes Maximum
200%
120 Seconds Maximum

Dimensions (mm⁄in)
Drawing Not to Scale

Agency Information
• UL Listed Card: AGC 1/500-10
• UL Recognition Card: AGC 11-45
• CSA Component Acceptance Card (Class No. 1422 30)
• CSA Certification Card (Class No. 1422 01)
Environmental Data
• Shock: 1/100A thru 3/4A – MIL-STD-202,
Method 213, Test Condition I; 1A thru 30A –
MIL-STD-202, Method 207, (HI Shock)
• Vibration: 1/100A thru 30A – MIL-STD-202,
Method 204, Test Condition A (Except 5g, 500HZ)
Ordering
• Specify packaging, product, and option code

Traditional Ferrule Fuses - Ferrule Type

Product Code
AGC-1/20
AGC-1/16
AGC-1/10
AGC-1/8
AGC-3/16
AGC-2/10
AGC-1/4
AGC-3/10
AGC-3/8
AGC-1/2
AGC-3/4
AGC-1
AGC-1-1/4
AGC-1-1/2
AGC-2
AGC-2-1/4
AGC-2-1/2
AGC-3
AGC-4
AGC-5
AGC-6
AGC-7
AGC-7-1/2
AGC-8
AGC-9
AGC-10
AGC-12
AGC-14
AGC-15
AGC-20
AGC-25
AGC-30
AGC-35
AGC-40

Voltage
Rating
AC
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
32V
32V
32V
32V
32V
32V
32V
32V

SPECIFICATIONS

250V
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
100A
100A
100A
100A
100A
100A
200A
200A
200A
200A
200A
200A
200A
200A
-

AC Interrupting
Rating
125V
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
-

32V
1000A
1000A
1000A
1000A
1000A
1000A
70A
80A

Typical DC Cold
Resistance**
(ohms)
4.500
29.000
12.565
6.800
4.900
3.360
2.300
1.670
1.203
0.615
0.312
0.190
0.145
0.115
0.078
0.067
0.057
0.045
0.030
0.024
0.020
0.017
0.0146
0.014
0.012
0.008
0.0070
0.0062
0.006
0.004
0.003
0.002
0.0014
0.0019

Typical
Melting I2t†
AC
0.00773
0.000181
0.000787
0.00131
0.00637
0.00435
0.0148
0.0208
0.0321
0.269
0.815
1.615
0.018
0.0149
0.00509
0.00588
0.00879
0.0167
0.0305
0.045
0.071
0.105
0.152
0.21
0.492
0.566
1.438
2.109
3.807
-

Typical
Voltage
Drop‡
0.67
10.41
6.00
4.67
4.12
4.51
0.89
2.88
4.59
0.59
0.37
0.31
0.35
0.27
0.28
0.26
0.31
0.25
0.22
0.23
0.23
0.23
0.19
0.18
0.20
0.14
0.12
0.11
0.12
-

** DC Cold Resistance (Measured at ≤10% of rated current)
† Typical Melting I2t (A2Sec) (I2t was measured at listed interrupting rating and rated voltage.)
‡ Typical Voltage Drop (Voltage drop was measured at 25°C ambient temperature at rated current)

OC-82

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

1/4" x 1-1/4" Fuses
AGC Series, Fast Acting, Glass Tube
TIME CURRENT CURVE

1-1/2
2
2-1/2
3
4

3/4
1

2/10
1/4
3/10
3/8
1/2

1/10
1/8

TIME IN SECONDS

TIME IN SECONDS

1/16

CURRENT IN AMPERES

CURRENT IN AMPERES

PACKAGING CODE
Packaging Code
BK
BK1
BK8

Description
100 pieces of fuses packed into a cardboard carton with flaps folded
1,000 pieces of fuses packed into a cardboard carton with flaps folded
8,000 pieces of fuses packed into a cardboard carton with flaps folded

Option Code
B
V
-R

Description
Board Washable - Hermetically sealed to withstand aqueous cleaning
Axial leads - copper tinned wire with nickel plated brass overcaps
RoHS compliant version

OPTION CODE

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

Traditional Ferrule Fuses - Ferrule Type

Visit us on the web at:
www.cooperbussmann.com

OC-83

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

1/4" x 1-1/4" Fuses
GBB Series Very Fast Acting, Ceramic Tube
Description
• Very fast-acting
• Optional axial leads available
• 1/4" x 1-1/4" (6.3mm x 32mm) physical size
• Ceramic tube, nickel-plated brass endcap construction
• 100pc-carton quantity weighs 1.0 lb (0.45 kg)
• UL recognized product meets standard 248-14
ELECTRICAL CHARACTERISTICS
Rated Current % of Amp Rating
Opening Time
100%
None
150%
2 minutes maximum
1 - 20A
250%
1 seconds maximum
400%
100%
None
150%
2 minutes maximum
25, 30A
250%
6 seconds maximum
400%
-

RoHS
2002/95/EC

Dimensions

mm

⁄(inches)

Agency Information
• UL Recognized Card: GBB 1-30A (JFHR2, E56412)
• CSA Component Certified Card
(Class 1422-01 File 53787)
Ordering
• Specify packaging, product, and option code

SPECIFICATIONS
Product Code

Traditional Ferrule Fuses - Ferrule Type

GBB-1
GBB-1-1/4
GBB-2
GBB-3
GBB-4
GBB-5
GBB-6
GBB-7
GBB-8
GBB-9
GBB-10
GBB-12
GBB-15
GBB-20
GBB-25
GBB-30

Voltage
Rating
AC
DC
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V
250V
125V

AC Interrupting
Rating*
250V
125V
200A
10,000A
200A
10,000A
200A
10,000A
200A
10,000A
200A
10,000A
200A
10,000A
200A
10,000A
200A
10,000A
200A
10,000A
200A
10,000A
200A
10,000A
200A
10,000A
200A
10,000A
200A
200A
200A
200A
200A
200A

DC Interrupting
Rating*
125V
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
10,000A
200A
200A
200A

Typical DC Cold
Resistance
(ohms)**
0.17750
0.17900
0.06620
0.04475
0.03175
0.02125
0.01800
0.01550
0.01360
0.01070
0.00934
0.00620
0.00472
0.00330
0.00252
0.00206

Typical
Melt I2t †
AC
DC
-

Typical
Voltage
Drop (V)‡
0.17750
0.17900
0.07000
0.04475
0.03175
0.02125
0.01800
0.01550
0.01360
0.01070
0.00934
0.08620
0.00472
0.00365
0.00252
0.00206

* Interrupting ratings: Interrupting ratings for 1-15A at 125Vdc was measured at 10,000A, 3.5 ms maximum, with time constant. Ratings 20-30A at 125Vdc were measured at 200A, 0.5 ms
maximum, with time constant. Ratings 1-15A at 125Vac were measured at 10,000A, and 70% - 80% power factor. The interrupting ratings for 1-30A at 250Vac were measured at 90% 100% power factor.
** DC Cold Resistance (Measured at <10% of rated current)
† Typical Melting I2t (I2t was measured at listed interrupting rating and rated voltage) Interrupting ratings were measured at 70% to 80% power factor on AC.
‡ Typical Voltage drop (Voltage drop was measured at 25°C±3°C ambient temperature at rated current)

OC-84

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

1/4" x 1-1/4" Fuses
GBB Series Very Fast Acting, Ceramic Tube
TIME CURRENT CURVE

2

3
5
6
7
8
9
10
12
15
20
25
30

TIME IN SECONDS

TIME IN SECONDS

1
1-1/4

CURRENT IN AMPERES

CURRENT IN AMPERES

PACKAGING CODE
Packaging Code
BK
BK1

Description
100 pieces of fuses packed into a cardboard carton
1,000 pieces of fuses packed into a cardboard carton

OPTION CODE

Visit us on the web at:
www.cooperbussmann.com

Description
Board Washable - Hermetically sealed to withstand aqueous cleaning
Axial leads - copper tinned wire with nickel plated brass overcaps
RoHS compliant version

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

Traditional Ferrule Fuses - Ferrule Type

Option Code
B
V
-R

OC-85

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

1/4" x 1-1/4" Fuses
MDA Series, Time Delay, Ceramic Tube
Description
• Time Delay, ceramic tube
• Optional axial leads available
• 1/4 x 1-1/4 (6.3mm x 32mm) physical size
• Ceramic tube, nickel-plated brass endcap construction
• UL Listed product meets standard 248-14
ELECTRICAL CHARACTERISTICS
Rated Current
Amp Rating
Opening Time
100%
None
1/4 - 30A
135%
60 Minutes Max.
200%
120 Seconds Max.

Agency Information
• UL Listed Card: MDA 2/10 - 20A (Guide JDYX,
File E19180)
• UL Recognized Card: MDA 25 - 30A (Guide JDYX2,
File E19180)
• CSA Certification Card: MDA 2/10 - 20
(Class No. 1422-01)
• CSA Component Acceptance: MDA 25-30A
(Class No. 1422-30)
Environmental Data
• Shock: 1/100A and 8/10A – MIL-STD-202,
Method 213, Test Condition I;
1A thru 30A – MIL-STD-202, Method 207,
(HI Shock)
• Vibration: 1/100A and 8/10A – MIL-STD-202,
Method 201; 1/4A thru 30A – MIL-STD-202,
Method 204, Test Condition C (Except 5g, 500HZ)
Ordering
• Specify packaging, product, and option code

RoHS
2002/95/EC

Dimensions (mm⁄in)
Drawing Not to Scale

SPECIFICATIONS

Traditional Ferrule Fuses - Ferrule Type

Product
Code
MDA-1/4
MDA-1/2
MDA-3/4
MDA-1
MDA-1-1/2
MDA-2
MDA-2-1/2
MDA-3
MDA-4
MDA-5
MDA-6
MDA-7
MDA-8
MDA-10
MDA-12
MDA-15
MDA-20
MDA-25A
MDA-30A
*
**
†
‡

Voltage
Rating
AC
DC
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
125V
250V
125V
250V
125V

AC Interrupting
Rating*
250V
125V
35A
10000A
35A
10000A
35A
10000A
35A
10000A
100A
10000A
100A
10000A
200A
10000A
200A
10000A
200A
10000A
200A
10000A
200A
10000A
200A
10000A
200A
10000A
200A
10000A
750A
10000A
750A
10000A
1500A
10000A
1500A
10000A
1500A
10000A

DC Interrupting
Rating
125V
10000A
10000A
10000A

Typical DC Cold
Resistance**
(ohms)
9.325
1.925
0.8555
0.560
0.2585
0.1645
0.06685
0.0507
0.0346
0.02355
0.01850
0.01475
0.01230
0.00858
0.00725
0.00543
0.00358
0.00309
0.00243

Typical
Melting I2t†
AC
0.68
2.3
7.8
11.1
25.0
64.0
28.9
40.9
134.0
345.9
534.3
580.3
944.0
1491.3
113.8
206.2
439.5
667.9
997.0

Typical
Voltage
Drop‡
4.00
1.42
1.31
1.03
0.691
0.623
0.213
0.182
0.162
0.145
0.141
0.137
0.134
N/A
0.114
0.107
0.095
0.105
0.110

Interrupting Ratings (Measured at 70% - 80% power factor on AC. The interrupting ratings for 25Amp, 30Amp were measured at 90% - 100% power factor on AC)
DC Cold Resistance (Measured at ≤10% of rated current)
Typical Melting I2t (A2Sec) (I2t was measured at listed interrupting rating and rated voltage)
Typical Voltage Drop (Voltage drop was measured at 25°C ambient temperature at rated current)

OC-86

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

1/4" x 1-1/4" Fuses
MDA Series, Time Delay, Ceramic Tube
TIME CURRENT CURVE

10
12
15
20
25
30

3-2/10
4
5
6-1/4

2

1

1/2

TIME IN SECONDS

TIME IN SECONDS

1/4

CURRENT IN AMPERES

CURRENT IN AMPERES

PACKAGING CODE
Packaging Code
BK
BK1
BK8

Description
100 pieces of fuses packed into a cardboard carton
1,000 pieces of fuses packed into a cardboard carton
8,000 pieces of fuses packed into a cardboard carton

OPTION CODE

Visit us on the web at:
www.cooperbussmann.com

Description
Board Washable - Hermetically sealed to withstand aqueous cleaning
Axial leads - copper tinned wire with nickel plated brass overcaps
RoHS compliant version

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

Traditional Ferrule Fuses - Ferrule Type

Option Code
B
V
-R

OC-87

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

1/4" x 1-1/4" Fuses
MDL Series, Time Delay, Glass Tube
Description
• Time delay, glass tube
• Optional axial leads available
• 1/4 x 1-1/4 (6.3mm x 32mm) physical size
• Glass tube, nickel-plated brass endcap construction
• UL Listed product meets standard 248-14

RoHS
2002/95/EC

ELECTRICAL CHARACTERISTICS
Rated Current
Amp Rating
Opening Time
100%
None
1/16 - 30A
135%
60 minutes max.
200%
120 seconds max.
1/16 - 3A
200%
5 seconds min.
3-2/10 - 8A
200%
12 seconds min.

Dimensions (mm⁄in)
Drawing Not to Scale

Agency Information
• UL Listed Card: MDL 1/16 - 8A (Guide JDYX, File E19180)
• UL Recognized Card: MDL 9 - 30A (Guide JDYX2,
File E19180)
• CSA Certification Card: MDL 1/16 - 8A
(Class No. 1422-01)
• CSA Component Acceptance: MDL 9-30A
(Class No. 1422-30)
Environmental Data
• Shock: 1/100A and 8/10A – MIL-STD-202,
Method 213, Test Condition I; 1A thru 30A –
MIL-STD-202, Method 207, (HI Shock)
• Vibration: 1/100A and 8/10A – MIL-STD-202,
Method 201; 1/4A thru 30A – MIL-STD-202,
Method 204, Test Condition C (Except 5g, 500HZ)
Ordering
• Specify packaging, product, and option code

Traditional Ferrule Fuses - Ferrule Type

Product Code
MDL-1/16
MDL-1/10
MDL-1/8
MDL-3/16
MDL-2/10
MDL-1/4
MDL-3/10
MDL-3/8
MDL-1/2
MDL-3/4
MDL-1
MDL-1-1/4
MDL-1-1/2
MDL-2
MDL-2-1/4
MDL-2-1/2
MDL-3
MDL-4
MDL-5
MDL-6
MDL-6-1/4
MDL-7
MDL-8
MDL-9
MDL-10
MDL-15
MDL-20
MDL-25
MDL-30
*
**
†
‡

Voltage
Rating
AC
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
32V
32V
32V
32V
32V
32V

SPECIFICATIONS

250V
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
100A
100A
100A
100A
100A
100A
200A
200A
200A
200A
200A
200A
-

AC Interrupting
Rating*
125V
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
-

32V
1000A
1000A
1000A
1000A
1000A
1000A

Typical DC Cold
Resistance**
(ohms)
38.000
15.900
9.850
4.680
4.115
3.200
2.300
2.800
1.725
0.822
0.525
0.320
0.250
0.173
0.068
0.096
0.067
0.035
0.023
0.018
0.018
0.018
0.011
0.009
0.008
0.006
0.002
0.001
0.001

Typical
Melting I2t†
AC
0.0046
0.0420
0.0422
0.116
0.314
0.447
0.412
0.982
1.656
4.343
11.498
86.2
22.7
62.3
49.6
63.1
67.5
19.3
32.0
37.4
38.7
42.7
47.8
51.5
64.4
354.0
2914.0
15221.0
15581.0

Typical
Voltage
Drop‡
2.79
1.95
1.52
1.05
0.972
0.965
0.808
1.46
1.27
1.01
0.995
0.722
0.721
0.644
0.535
0.410
0.345
0.187
0.160
0.155
0.152
0.140
0.119
0.124
0.114
0.130
0.530
0.30
0.40

Interrupting Ratings (Interrupting ratings were measured at 70% - 80% power factor on AC)
DC Cold Resistance (Measured at ≤10% of rated current)
Typical Melting I2t (A2Sec) (I2t was measured at listed interrupting rating and rated voltage.)
Typical Voltage Drop (Voltage drop was measured at 25°C±3°C ambient temperature at rated current)

OC-88

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

1/4" x 1-1/4" Fuses
MDL Series, Time Delay, Glass Tube
TIME CURRENT CURVE
1000
900
800
700

500

500
400
300

2

1-1/2

300

1-6/10

600

400

200

40

20
25
30

15

10

5
6-1/4

1-1/4

3-2/10

200

100
90
80
70
60

100
90
80
70
60

50

50

40

40

30

30

20

20

10
9
8
7
6

10
9
8
7
6

5

5

4

4

3

3

2

2

1
.9
.8
.7
.6

1
.9
.8
.7
.6

.5

.5

.4

.4

.3

.3

.2

.2

.1
.09
.08
.07
.06

TIME IN SECONDS

.1
.09
.08
.07
.06

.05

.05

.04

.04

5000

4000

3000

2000

600
700
800
900
1000

500

400

200

300

60
70
80
90
100

50

40

30

20

5

6
7
8
9
10

4

.01
3

.01
2

.03

.02

1

.03

.02

6000
7000
8000
9000
10000

TIME IN SECONDS

6000
7000
8000
9000
10000

5000

4000

3000

2000

600
700
800
900
1000

500

400

300

200

60
70
80
90
100

50

40

30

20

5

6
7
8
9
10

4

3

2

1

CURRENT IN AMPERES
1000
900
800
700
600

CURRENT IN AMPERES

PACKAGING CODE
Packaging Code
BK
BK1
BK8

Description
100 pieces of fuses packed into a cardboard carton
1,000 pieces of fuses packed into a cardboard carton
8,000 pieces of fuses packed into a cardboard carton

OPTION CODE

Visit us on the web at:
www.cooperbussmann.com

Description
Board Washable - Hermetically sealed to withstand aqueous cleaning
Axial leads - copper tinned wire with nickel plated brass overcaps
RoHS compliant version

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

Traditional Ferrule Fuses - Ferrule Type

Option Code
B
V
-R

OC-89

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

1/4" x 1-1/4" Fuses
MDQ Series Dual Element, Time Delay, Glass Fuse
Description
• Dual element, time delay
• 1/4" x 1-1/4" (6.3mm x 32mm) physical size
• Glass tube, nickel-plated brass endcap construction
• UL Listed product meets standard 248-14
ELECTRICAL CHARACTERISTICS
Rated Current % of Amp Rating
Opening Time
100%
None
1/16A - 30A
135%
60 minutes maximum
200%
120 seconds maximum

Agency Information
• UL Listed Card: MDQ-1/16 - 7A (Guide JDYX,
File E19180)
• UL Recognition Card: MDQ-7.5 - 30A
(Guide JDYX2, File E19180)
• CSA Component Acceptance Card:
MDQ-1/100 - 30 (Class 1422-01)
Ordering
• Specify packaging, product, and option code

Dimensions

mm

⁄(inches)

SPECIFICATIONS

Traditional Ferrule Fuses - Ferrule Type

Product Code
MDQ-1/16
MDQ-1/10
MDQ-1/8
MDQ-3/16
MDQ-2/10
MDQ-1/4
MDQ-3/10
MDQ-3/8
MDQ-1/2
MDQ-3/4
MDQ-1
MDQ-1-1/4
MDQ-1-1/2
MDQ-2
MDQ-2-1/4
MDQ-2-1/2
MDQ-3
MDQ-4
MDQ-5
MDQ-6
MDQ-6-1/4
MDQ-7
MDQ-8
MDQ-9
MDQ-10
MDQ-15
MDQ-20
MDQ-25
MDQ-30

Voltage
Rating
AC
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
32V
32V
32V
32V
32V
32V
32V

Interrupting
Rating
AC
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
100A
100A
100A
100A
100A
100A
200A
200A
200A
200A
200A
1,000A
1,000A
1,000A
1,000A
1,000A
1,000A
1,000A

Typical DC Cold
Resistance
(ohms)**
83.30000
35.00000
21.50000
10.00000
8.65000
5.77500
4.20000
2.35000
1.40000
0.39685
0.37400
0.36000
0.27000
0.13250
0.11450
0.10050
0.05715
0.03510
0.02650
0.01715
0.01690
0.01375
0.01200
0.00888
0.00720
0.00410
0.00150
0.00123
0.00105

** DC Cold Resistance (Measured at <10% of rated current)

OC-90

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

1/4" x 1-1/4" Fuses
MDQ Series Dual Element, Time Delay, Glass Fuse
TIME CURRENT CURVE

15

20
25
30

10

5
6-1/4

3-2/10

1
1-1/4

3/10

1/2

2/10

TIME IN SECONDS

TIME IN SECONDS

1/10

1-1/2
1-6/10
2

CURRENT IN AMPERES

CURRENT IN AMPERES

PACKAGING CODE
Packaging Code
BK
BK1

Description
100 pieces of fuses packed into a cardboard carton
1,000 pieces of fuses packed into a cardboard carton

OPTION CODE

Visit us on the web at:
www.cooperbussmann.com

Description
Board Washable - Hermetically sealed to withstand aqueous cleaning
Axial leads - copper tinned wire with nickel plated brass overcaps

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

Traditional Ferrule Fuses - Ferrule Type

Option Code
B
V

OC-91

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Automotive Fuses - Blade

Blade-Type Fuses
ATM Series, Fast Acting

15A
20A
25A
30A

7.5A
10A

2A

3A
4A
5A

Time-Current Characteristic Curves–Average Melt
RoHS
2002/95/EC

100

AMPERE
RATING

10

Dimensional Data
.430"
10.92mm

TIME IN SECONDS

.15"
3.81mm

.347" ( 0.016)
±0.41)

1

.295" ( 0.012)
±0.30)

.1

Catalog Symbol: ATM
Fast-Acting
Ampere Ratings: 2 to 30 Amperes
Interrupting Rating: 1,000 Amperes
Ordering: Specify packaging and product code

CURRENT IN AMPERES

200

Voltage
Rating DC
32V
32V
32V
32V
32V
32V
32V
32V
32V
32V

100

Body
Color
Gray
Violet
Pink
Tan
Brown
Red
Lt. Blue
Yellow
Natural White
Green

10

SPECIFICATIONS
Product
Code
ATM-2
ATM-3
ATM-4
ATM-5
ATM-7 1/2
ATM-10
ATM-15
ATM-20
ATM-25
ATM-30

1

.4

.01

Recommended Bussmann Fuseholders
Blade-Type

ATM

Part

Description

HHM

Fuseholder w/Cover

HHM-B

Body Only

HHM-C

Cover Only

HHL

Fuseholder w/Cover

HHL-B

Body Only

Fuse Size
3-30 Amps
—
2-20 Amps

Wire Size
#12 Lead Wire;
4" Length
—
#16 Lead Wire;
4" Length

PACKAGING CODE
Packaging Code
Blank
BK

Visit us on the web at:
www.cooperbussmann.com

Description
5 pieces of fuses packed in a tin
500 pieces of fuses packed in a carton

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-92

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

ATC Series, Fast Acting
Time-Current Characteristic Curves–Average Melt
AMPERE
RATING

7.5
10
15
20
25
30
40

3
4
5

RoHS
2002/95/EC

Automotive Fuses - Blade

Blade-Type Automotive Fuses

100

Dimensional Data

5.25mm
.207”

12.5mm
.5m
.492”

6.67mm
.263”

SPECIFICATIONS
Product
Code
ATC-1
ATC-2
ATC-3
ATC-4
ATC-5
ATC-7 1/2
ATC-10
ATC-15
ATC-20
ATC-25
ATC-30
ATC-40

Visit us on the web at:
www.cooperbussmann.com

Body
Color
Black
Gray
Violet
Pink
Tan
Brown
Red
Blue
Yellow
Clear
Green
Amber

.01

100

Catalog Symbol: ATC
Fast-Acting
Ampere Rating: 1 to 40 Amperes
Interrupting Rating: 1,000 Amperes
Agency Approvals: U.L. Recognized, (3-40A)
Guide JFHR2, File E56412
Ordering: Specify packaging and product code

1,000

.1

10

14.6mm
.575”
16.7mm
.657”

1

1

4.13mm
.163”

19.1mm
1m
.752”

TIME IN SECONDS

11.7mm
.460”
19.3mm
93
.760”

10

CURRENT IN AMPERES

Recommended Bussmann Fuseholders*

Voltage
Rating DC
32V
32V
32V
32V
32V
32V
32V
32V
32V
32V
32V
32V

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Blade-Type

ATC

Part

Description

Fuse Size

Wire Size

HHC

Yellow Fuseholder

3-20 Amps

#16 Lead Wire

HHF

Black Fuseholder w/cover

3-20 Amps

#14 Lead Wire

HHD

Black Fuseholder

3-30 Amps

#12 Lead Wire

HHG

Black Fuseholder w/cover

3-30 Amps

#12 Lead Wire

HHD-C

Cover Only

—

—

*Also used in Bussmann 1A5600 Fuse Clips (0-20A)

PACKAGING CODE
Packaging Code
Blank
BK

Description
5 pieces of fuses packed in a tin
2,000 pieces of fuses packed in a carton

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-93

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Automotive Fuses - Blade

Blade-Type Fuses
MAX Series
Time-Current Characteristic Curves–Average Melt

100

10
All tolerances: ±0.008"/-.005"
±0.20mm/-0.13mm

30

3322 V
V

.350
0"
0
.850
850
0"

(8.9mm)
8.9m

(21.6mm)
1.6m

TIME IN SECONDS

Dimensional Data

BUSS
M
MA
AX
XII--FFU
US
SE
E

AMPERE
RATING

30
40
50
60

20

RoHS
2002/95/EC

1

0.5""
(12.7mm)
2.7m

.315"
(8.0mm)

.1

Voltage
Rating DC
32V
32V
32V
32V
32V
32V
32V

CURRENT IN AMPERES

2,000

Body
Color
Yellow
Green
Orange
Red
Blue
Tan
Natural

1,000

Product
Code
MAX-20
MAX-30
MAX-40
MAX-50
MAX-60
MAX-70
MAX-80

100

SPECIFICATIONS

20
30
40
50

10

.01

4

Catalog Symbol: MAX
Fast-Acting
Ampere Rating: 20 to 80 Amperes
Interrupting Rating: 1,000 Amperes
Ordering: Specify packaging and product code

Recommended Bussmann Fuseholders
Blade-Type
MAX

Part

Description

HHX

Fuseholder w/Cover

HHX-B

Body Only

HHX-C

Cover Only

Fuse Size
20-60 Amps
—

Wire Size
#6 Lead Wire;
5" Length
—

PACKAGING CODE
Packaging Code
Blank
BK

Visit us on the web at:
www.cooperbussmann.com

Description
1 pieces of fuses packed in a tin
250 pieces of fuses packed in a carton

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-94

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

PC Board Fuseclips
for 5mm Diameter Fuses
HTC-15M, HTC-140M

RoHS
2002/95/EC

PCB Mounted Fuse Holder & Snap-On Cover
.531"

.345"
.571"

866"
.866"
.866
Dia. (Typ.)
T

.177"

217"

(4.5mm)

.319"

.177"

.50"

BUSS

(12.7mm)

PCB Mounted Fuseclip

RoHS
2002/95/EC

.157"
(3.99mm)

.929"
2
(23.6mm)
6

.61"
6
(15.5mm)
.5

.031"
(.79mm)

.012"

.217"

(.3mm)

(5.5mm)

.50"

.50"

(12.7mm)

(12.7mm)

HTC-211M

RoHS
2002/95/EC

PCB Mounted Fuseclip with End Stops
Construction: Tin-plated brass
*Equivalent replacement to HTC-210M

1A3399 Series**
PCB Fuseclips with
Catalog Numbers
1A3399-01
1A3399-04
1A3399-10

End Stops & Straight Leads
Clip Material*
Finish
Beryllium copper* Silver
Beryllium copper* Bright tin
Spring bronze
Bright tin

.062"

.115"

(1.6mm)

(2.9mm)

.254"

(5.7mm)

(3.2mm)

.237"

(6.5mm)

.030"
(1.6mm)

.060"

.125"

(1.5mm)

(3.2mm)

(6.0mm)

RoHS
2002/95/EC

.225"

.125"

Accessories - Fuseclips

Construction: Tin-plated bronze
Tape and Fan Fold packed
Ammo Pack (AP/HTC-200M) 1000 pieces per box

Mounting Holes
.890"

Cover

(22.0mm)

(4.5mm)

(5.5mm)

(9.0mm)

BUSS

HTC-200M

.217"
1.047"
1.047
(26.6mm)

BUSS

Voltage Rating: 250V, 6.3A, 1.6W
HTC-15M (fuse holder), HTC-140M (natural cover),
HTC-150M* (transparent cover)
*Available in bulk only. Use this format: BK/HTC-150M

.188"
(4.8mm)

*Beryllium copper recommended for amps higher than 15 amps (1⁄4” clips).

1A5018 Series**

.180"
(4.57mm)

RoHS
2002/95/EC

.440"
4
(1

PCB High Profile Fuseclips with End Stops & Straight Leads
Catalog Numbers
Clip Material*
Finish
1A5018-07
Spring bronze
Silver
1A5018-10
Spring bronze
Bright tin

.230"
(5.84mm)

.047"
(1.2mm)

.140"

.180"

(3.7mm)

(4.6mm)

*Beryllium copper recommended for amps higher than 15 amps (1⁄4” clips).

1A5601 Series
PCB Fuseclips (0-7A)
Catalog Number
Clip Material
1A5601
Cartridge brass

.246"

.344" + .015"

(6.3mm)

(8.73mm + 0.38mm)

RoHS
2002/95/EC

.344" + .015"

(8.73mm + 0.38mm)

Finish
Bright tin

.141" + .015"

(3.58mm + 0.38mm)

.060"

.266"

(1.5mm)

(6.75mm)

.022" + .002"

.032" + .002"

(0.56mm + 0.05mm)

1A5602 Series
PCB Fuseclips (0-7A)
Catalog Number
Clip Material
1A5602
Cartridge brass

.250"
(6.35mm)

(.81mm + .05mm)

.219"

RoHS
2002/95/EC

(5.57mm)

Finish
Bright tin

.500"

.250"

(12.70mm)

(6.35mm)

.140"
(3.56mm)

.093"
(2.36mm)

.047"

.216"
(5.48mm)

LEGS TO FIT
IN .052" (1.3mm) DIA.
HOLES ON CENTER

(1.19mm)

**For RoHS compliant version, add “-R” option code suffix to part number.

OC-95

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

PC Board Fuseclips
for 1/4" Diameter Fuses
1A3398 Series**

(2.6mm)

(7.1mm)

.255"
(6.5mm)

PCB Fuseclips without End Stops or Straight Leads
Catalog Numbers
Clip Material
Finish
1A3398-07
Cartridge brass
Bright tin

.155"

.245"

(3.94mm)

(6.2mm)

RoHS
2002/95/EC

.410"
1
( 4
(10.4mm)

.280"
(7.1mm)

(2.6mm)

.060"
(1.5mm)

.320"

.140"

.280"

(3.6mm) (7.1mm)

(8.13mm)

Accessories - Fuseclips

1A1907 Series**
PCB Fuseclips with
Catalog Numbers
1A1907-02
1A1907-03
1A1907-05
1A1907-06

.155"

.280"
(2.6mm)

End Stops & Straight Leads
Clip Material*
Finish
Cartridge brass
None/bright dipped
Beryllium copper* Bright tin
Beryllium copper* Silver
Cartridge brass
Bright tin

(3.94mm)

(7.1mm)

.255"
(6.5mm)

(6.2mm)

.280"

.410"
1

.060"
(1.5mm)

.320"

*Beryllium copper recommended for amps higher than 15A ⁄4” clips).

.140"

.245"
(6.2mm)

.155"
(3.94mm)

.102"
(2.6mm)

RoHS
2002/95/EC

.410"
1
(10.4mm)
4m

.255"
.060"

.280"
8
(7.11mm)
1m

(5.79mm)

(3.81mm)

.323"

(1.5mm)

(8.20mm)

1A4534 Series**

.245"
(6.2mm)

End Stops & Angled Out Leads
Clip Material*
Finish
Beryllium copper* Bright tin
Cartridge brass
Bright tin

.320"
(8.13mm)

.228"

(6.5mm)

*Beryllium copper recommended for amps higher than 15A (1⁄4” clips).

.155"
(3.94mm)

.102"
(2.6mm)

RoHS
2002/95/EC

.410"
1
(10.4mm)
4m

.255"
.060"

.280"
8
(7.11mm)
1m

(5.79mm)

(3.81mm)

.323"

(1.5mm)

1A1119 Series**

.320"
(8.13mm)

.228"

(6.5mm)

*Beryllium copper recommended for amps higher than 15A (1⁄4” clips).

Stops & Angled In
Clip Material*
Beryllium copper*
Beryllium copper*
Cartridge brass

.280"

(8.13mm)

PCB Fuseclips without End Stops or Angled Out Leads
Catalog Numbers
Clip Material*
Finish
1A4533-01
Beryllium copper* Bright tin
1A4533-06
Cartridge brass
Bright tin

Fuseclips with End
Catalog Numbers
1A1119-04
1A1119-05
1A1119-10

(7.1mm)

(3.6mm) (7.1mm)

1A4533 Series**

PCB Fuseclips with
Catalog Numbers
1A4534-01
1A4534-06

(2.6mm)

( 4
(10.4mm)

1

RoHS
2002/95/EC

.245"

(8.20mm)

.132"

.285"

(3.4mm)

(7.24mm)

Leads
Finish
Bright tin
Silver
Bright tin

.420"

.187"

(10.67mm)

(4.8mm)

.080"

.290"
(7.4mm)

.155"
(3.9mm)

.360"

(2.03mm)

*Beryllium copper recommended for amps higher than 15A (1⁄4” clips).

1A1120 Series**

(9.14mm)

(

)

.132"

.265"

PCB Fuseclips without End Stops or Angled In Leads
Catalog Numbers
Clip Material*
Finish
1A1120-02
Cartridge brass
None/bright dipped
1A1120-05
Beryllium copper* Silver
1A1120-06
Beryllium copper* Bright tin
1A1120-09
Cartridge brass
Bright tin

.410"

.187"

(10.4mm)

(4.8mm)

.080"

.312"
(7.9mm)

.255"

(2.03mm)

RoHS
2002/95/EC

(3.4mm)

(6.7mm)

(6.5mm)

.312"
(7.9mm)

.250"
(6.5mm)

RoHS
2002/95/EC

.290"
.155"
(3.9mm)

(7.4mm)

.360"
(9.14mm)

*Beryllium copper recommended for amps higher than 15A (1⁄4” clips).

**For RoHS compliant version, add “-R” option code suffix to part number.

Visit us on the web at:
www.cooperbussmann.com

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-96

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 20mm Fuseholders
HTC Printed Circuit Board Series
Description
• For 5mm x 20mm fuses
• Fuse carriers are interchangeable
• Both vertical and horizontal mounting features
• Fuse carrier and knob are spring loaded
bayonet type with screwdriver slot
• Solderability in accordance with IEC 68-2-20
• Shock safety of PC2
• High temperature thermoplastic meets:
• UL 94-VO
• Glow wire test: 960°C per IEC 695-2-1
HTC series printed circuit board fuseholders accept
5 x 20mm fuses.
Agency Information
• UL Recognized: IZLT2, E14853A
• CSA Component Certified: Class 6225-01, File 47235
Ordering
• Specify packaging and product code

RoHS
2002/95/EC

Dimensions
Drawing Not to Scale

Material
Tin Plating
Copper, Tin Plated
Thermoplastic

SPECIFICATIONS
Product
Code
HTC-45M
HTC-50M

Voltage
Rating
AC
250V
250V

UL
6.3A
6.3A

Current Rating
Agency Approval
CSA
6.3A
6.3A

SEMKO
6.3A
6.3A

Ambient
Temperature
24C
24C

Temperature
Rise
41C
41C

Mounting
Vertical
Horizontal

Accessories - Fuseholders

Component
Clip
Terminals
Body

PACKAGING CODE
Packaging Code
Blank
BK

Visit us on the web at:
www.cooperbussmann.com

Description
10 pieces of fuseholder packed into a carton
100 pieces of fuseholders packed into a cardboard shelf package

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-97

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

5mm x 20mm Fuseholders
HTC Panel Mount Series
Description
• For 5mm x 20mm fuses
• Tin-plated brass terminals
• Shock safety of PC2
• High temperature Thermoplastic meets:
• UL 94 VO
• Glow wire test: 960°C IEC 695-2-1
• Designed to IEC 68-2-20
Agency Information
• UL Recognized: IZLT2, E14853A
• CSA Component Certified: Class 6225-01, File 47235

RoHS
2002/95/EC

Ordering
• Specify packaging and product code

SPECIFICATIONS
Product
Code
HTC-35M
HTC-40M
HTC-55M
HTC-70M

Cap
Type
Threaded Cap/Carrier
Screwdriver Slot
Bayonet Cap/Carrier
Bayonet Cap/Carrier

Voltage
Rating
AC
250V
250V
250V
250V

Current
Rating
AC
6.3A
6.3A
6.3A
10A

Ambient
Temperature
24C
24C
24C
24C

Temperature
Rise
43C
43C
43C
43C

Maximum
Temperature
(C)
75
75
65
65

Dimensions

Accessories - Fuseholders

Drawing Not to Scale
HTC-35M

HTC-55M

HTC-40M

HTC-70M

Component
Terminal
Body
Cap
Nut

Material
Tin-Plated Brass
Thermoplastic
Thermoplastic
Polycarbonate

Visit us on the web at:
www.cooperbussmann.com

PACKAGING CODE
Packaging Code
Blank
BK

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Description
10 pieces of fuseholders packed into a carton
100 pieces of fuseholders packed into a cardboard shelf package

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-98

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Fuseholders
HB PCB Series (HBH, HBV, HBW)
Description
• For 1/4" x 1-1/4" and 5mm x 20mm fuses
• Fuse carriers are interchangeable
• Carriers are color coded for easy identification:
• Gray for 1/4" fuses
• Black for 5mm fuses
• Both vertical and horizontal mounting features
• Fuse carrier and knob are spring loaded
bayonet type with screwdriver slot
• “Kicked” terminals (all models) for optimum
wave-soldering
• Stabilizer pins on HBV model
• High dielectric molded thermoplastic meets UL 94 VO
Resistance Ratings
• Insulation Resistance: 10,000 megaohm at 500Vdc
• Contact Resistance: Less than 0.005 ohms at 200mV
Dielectric Strength
• Dielectric Strength: Over 200mV
Agency Information
• UL Recognized: IZLT2, E14853
• CSA Component Acceptance: Class 6225-01,
File 47235

RoHS
2002/95/EC

Environmental Data
• Temperature Rating (RTI): The mounting body for all
devices has a temperature rating of 150°C. The knob for
all devices has a temperature rating of 130°C.
Ordering
• Specify packaging, product, and option code

SPECIFICATIONS
Product
Code

Body
Mount
Horizontal
Horizontal
Vertical w/ Stability Pins
Vertical w/ Stability Pins
Vertical w/o Stability Pins
Vertical w/o Stability Pins
Horizontal
Vertical w/ Stability Pins
Vertical w/o Stability Pins
na
na

Carrier
Size
1/4" x 1-1/4"
5mm x 20mm
1/4" x 1-1/4"
5mm x 20mm
1/4" x 1-1/4"
5mm x 20mm
na
na
na
1/4" x 1-1/4"
5mm x 20mm

Voltage
Rating
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V

UL
16A
16A
16A
16A
16A
16A
16A
16A
16A
16A
16A

Current Rating
Agency Approval
CSA
VDE
12A
6.3A
12A
6.3A
12A
6.3A
12A
6.3A
12A
6.3A
12A
6.3A
12A
6.3A
12A
6.3A
12A
6.3A
12A
6.3A
12A
6.3A

SEMKO
10A
10A
10A
10A
10A
10A
10A
10A
10A
10A
10A

Accessories - Fuseholders

HBH-I
HBH-M
HBV-I
HBV-M
HBW-I
HBW-M
HBH
HBV
HBW
FBI
FBM

Fuseholder

PACKAGING CODE
Packaging Code
Blank
BK

Description
10 pieces of fuseholders packed into a carton
100 pieces of fuseholders packed into a cardboard shelf package

OPTION CODE
Option Code
-R

Visit us on the web at:
www.cooperbussmann.com

Description
RoHS compliant version

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-99

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

1/4" x 1-1/4" Fuseholders
HKP Panel Mount Series
Description
• For 1/4" x 1-1/4" (6.3mm x 32mm) fuses
• Maximum panel thickness 5/16" (7.9mm) thick
• Bayonet-type Knob
• Vibration Resistant
• Military version is designated FHN26G1
• Plastic nut – BK/1A4287
• Metal nut – BK/1A4806-2
• Cap – 9435-1/2
• Neoprene washer – 9732
Agency Information
• UL Recognized: IZLT2, E14853
• CSA Component Acceptance:
Class 6225-01, File 47235
Ordering
• Specify packaging, product, and option code

RoHS
2002/95/EC

Environmental Data
• Temperature rating (RTI): The mounting body for
all devices has a temperature rating of 150°C.
The knob for these devices are molded plastic
with a temperature rating of 150°C.
• Thermoplastic meets UL 94 HB
• Terminal Strength: 5 pounds
• Torque: Mounting – 20 inch-pound
• Salt Spray (corrosion): Test condition B

Dimensions
Drawing Not to Scale
HKP-BBHH, HKP-HH, HKP-LW-HH

Accessories - Fuseholders

HKP, HKP-L, and HKP-W

HKP-OO

Component
Terminal
Body
Cap
Nut

Material
Tin-Plated Brass
Thermoset
Thermoset
Thermoplastic

OC-100

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

1/4" x 1-1/4" Fuseholders
HKP Panel Mount Series
SPECIFICATIONS
Product
Code
HKP
HKP-BBHH
HKP-HH
HKP-L
HKP-LW-HH
HKP-OO
HKP-W

Feature
Standard
1/4" Quick Connects, nut and washer assembled
1/4" Quick Connects
2250 stand-off barrier
Drip-proof knob, 2250V stand-off barrier and 1/4" quick connects
Snap-lock
Drip-proof knob

Voltage
Rating
250V
250V
250V
250V
250V
250V
250V

Current
Rating
30A
20A
20A
30A
20A
30A
30A

PACKAGING CODE
Packaging Code
Blank
BK

Description
10 pieces of fuseholders packed into a carton
100 pieces of fuseholder components packed separately into a carton

OPTION CODE
Option Code
-R

Description
RoHS compliant version

Accessories - Fuseholders

Visit us on the web at:
www.cooperbussmann.com

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-101

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Fuseholders
HTB Panel Mount Series
Description
• For 1/4" x 1-1/4" and 5mm x 20mm fuses
• All holder bodies have the option of using
1/4" x 1-1/4" or 5mm x 20mm carriers
• Withstands 15 to 20 lbs-in torque to mounting
nut when mounting fuseholder to panel
• High temperature, flame retardant,
Thermoplastic meets UL 94 VO

RoHS
2002/95/EC

SPECIFICATIONS
Product Current
Code
Rating
HTB-X2I
15A
HTB-X4I
15A
HTB-X6I
20A
HTB-X8I
20A
HTB-X2M
15A
HTB-X4M
15A
HTB-X6M
16A
HTB-X8M
16A

Voltage
Rating
250V
250V
250V
250V
250V
250V
250V
250V

Fuse
Size
1/4" x 1-1/4"
1/4" x 1-1/4"
1/4" x 1-1/4"
1/4" x 1-1/4"
5mm x 20mm
5mm x 20mm
5mm x 20mm
5mm x 20mm

Quick
Connect
3/16"
3/16"
1/4"
1/4"
3/16"
3/16"
1/4"
1/4"

Maximum Panel Thickness
Body Type
HTB-2
HTB-3
HTB-4
HTB-5
HTB-6
HTB-8
HTB-9

Inch
0.30
0.30
0.125
0.125
0.30
0.125
0.125

Agency Information
• UL Recognized: IZLT2, E14853
• CSA Component Acceptance:
Class 6225-01, File 47235
• VDE Certified: 136128, HTB-XXM
• SEMKO Certification: Ref. #0146149/01, HTB-XXM

Mounting Dimensions

Replacement Parts

Millimeters
7.62
7.62
3.18
3.18
7.62
3.18
3.18

Dimensional Data
Accessories - Fuseholders

Terminal Options
Knob Type Carrier

Solder/
‹Ω¡ §∑ Quick-Connect

Common Dimensional Data:
Length (Knob Type) - 1.69∑
(42.9mm) Plus In-Line Terminal
(Screwdriver Slotted)
1.75∑ (44.5mm)
NOTE: Plus In-Line Terminal
0.47"

1.125"

(11.9mm)

(28.6mm)

Maximum
Panel
Thickness

0.30∑
7.62mm
Low Profile
Rear Hex Nut

0.09" NOM.
(2.4mm)

0.69"

0.91"

(17.5mm)

(23.0mm)

HTB-2

In-Line

Rt. Angle

Carrier Options
⁄Ω¢∑ Quick-Connect
In-Line

Rt. Angle

Knob

0.34"

0.33"

(8.7mm)

(8.3mm)

0.47"
(11.9mm)

HTB-4

0.67"

0.92"

(17.1mm)

(23.4mm)

5mm x 20mm
(“M” Equals Metric)
Knob

0.45"
(11.5mm)

HTB-22I

HTB-24I

HTB-26I

HTB-28I

✓

—

HTB-22M

HTB-24M

HTB-26M

HTB-28M

—

✓

HTB-42I

HTB-44I

HTB-46I

HTB-48I

✓

—

HTB-42M

HTB-44M

HTB-46M

HTB-48M

—

✓

HTB-62I

HTB-64I

HTB-66I

HTB-68I

✓

—

HTB-62M

HTB-64M

HTB-66M

HTB-68M

—

✓

HTB-82I

HTB-84I

HTB-86I

HTB-88I

✓

—

HTB-82M

HTB-84M

HTB-86M

HTB-88M

—

✓

0.125∑
3.18mm

High
Profile
Rear Hex Nut

⁄Ω¢∑ x 1⁄Ω¢∑
(“I” Equals Inches)

0.30∑
7.62mm
Front
Hex Nut

HTB-6

0.47"

1.125"

(11.9mm)

(28.6mm)

0.125∑
3.18mm
Low Profile
Snap-In

HTB-8

Fuseholders and fuse carriers may be ordered separately.

OC-102

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Fuseholders
HTB Panel Mount Series
Dimensional Data
Terminal Options
Knob Type Carrier

Carrier Options

Solder/
‹Ω¡ §∑ Quick-Connect

Common Dimensional Data:
Length (Knob Type) - 1.69∑
(42.9mm) Plus In-Line Terminal
(Screwdriver Slotted)
1.75∑ (44.5mm)
NOTE: Plus In-Line Terminal
0.17"

1.58"

(4.37mm)

(40.03mm)

Maximum
Panel
Thickness

0.41"

1.34"
(34.13mm)

In-Line

Rt. Angle

⁄Ω¢∑ ≈ 1⁄Ω¢∑
(“I” Equals Inches)

0.47"

0.33"

HTB-5

0.17"

1.59"

(4.37mm)

(40.08mm)

Screwdriver

0.45"

(11.9mm)

(8.3mm)

(11.5mm)

HTB-32I

HTB-34I

HTB-36I

HTB-38I

✓

—

HTB-32M

HTB-34M

HTB-36M

HTB-38M

—

✓

HTB-52I

HTB-54I

HTB-56I

HTB-58I

✓

—

HTB-52M

HTB-54M

HTB-56M

HTB-58M

—

✓

HTB-92I

HTB-94I

HTB-96I

HTB-98I

✓

—

HTB-92M

HTB-94M

HTB-96M

HTB-98M

—

✓

0.125∑
3.18mm
High Profile
Rear Hex Nut

5mm ≈ 20mm
(“M” Equals Metric)

Screwdriver

0.34"

HTB-3

(10.31mm)

Rt. Angle

(8.7mm)

0.30∑
7.62mm
Low Profile
Rear Hex Nut

In-Line

⁄Ω¢∑ Quick-Connect

0.125∑
3.18mm
Low-Profile
Snap-In

HTB-9

Fuseholders and fuse carriers may be ordered separately.

Ordering Information
FUS
E CARRIER ONLY
HTB-

Product
ymbol
S

Body Configuration and Mounting
Finger Grip Holders
2 — Low Profile (Rear Panel Hex-Nut)
4 — High Profile
* 6 — (Front Panel Hex-Nut)
8 — Low Profile (Snap-In)
crewdriver S
S
lotted Holders
3 — Low Profile
5 — High Profile
9 — Low Profile (Snap-In)

Fuse Carrier
I — ⁄Ω¢∑ x 1-1⁄Ω¢∑
M — 5mm x 20mm
Rear Terminal Configuration
2 — Solder / ‹Ω¡§∑ Quick-Connect
(In-Line)
4 — Solder / ‹Ω¡§∑ Quick-Connect
(Right Angle)
6 — ⁄Ω¢∑ Quick-Connect (In-Line)
8 — ⁄Ω¢∑ Quick-Connect (Right Angle)

P

Slash Proof
p
(Optional on -2,
-4, -6, and -8)

-R

RoHS
Compliant
Version

Packaging
(Blank) – Std.
BK/ – Bulk

Product
y
Smbol
FT — Knob Type
(For 20, 40, 60,
and 80 Series
Only)
T
S — Screwdriver
Slotted (For 30,
50, and 90 Series
Only)

Fuse Carrier
I — ⁄Ω¢∑ x 1⁄Ω¢∑
M — 5mm x 20mm

Accessories - Fuseholders

Packing
(Blank) – Std.
BK/ – Bulk

S

*Profile varies with panel thickness. Holder installs thru rear of panel.

PACKAGING CODE
Packaging Code
Blank
BK

Visit us on the web at:
www.cooperbussmann.com

Description
10 pieces of fuseholders packed into a carton
100 pieces of fuseholders packed into a cardboard shelf package

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-103

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

1/4" x 7/8" to 1-1/4" Fuseholders
HHB In-Line Series
Description
• For 1/4" x 7/8" to 1/4" x 1-1/4" fuses
• Accepts #16 to #12 AWG copper wire
• Simple crimp assembly
• “Snap-Lock” feature provides strong positive union
• High visibility yellow color
• Recommended crimp tools:
• Thomas & Betts – ERG-2002
• Channelock No. 909
• General Electric – U.S. & Metric Electrical
Terminal Tool
• UL flammability rating 94 V2
Environmental Data
• Pull Force: 5 pounds minimum to separate
fuseholder housing with fuse inside
Ordering
• Specify packaging, product, and option code

RoHS
2002/95/EC

Dimensions
Drawing Not to Scale

SPECIFICATIONS
Product
Code
HHB

Voltage
Rating
AC
32V

Component
Body
Crimp

Current
Rating
AC
30A

Material
Nylon
Copper Tin-Plated

PACKAGING CODE
Accessories - Fuseholders

Packaging Code
Blank
BK

Description
10 pieces of fuseholders packed into a carton
1,000 pieces of fuseholders packed into a cardboard shelf package

OPTION CODE
Option Code
Y408
R408
B408
Y419
R419
B419
-R

Visit us on the web at:
www.cooperbussmann.com

Description
#14 AWG insulated wire with 8 inch yellow leads
#14 AWG insulated wire with 8 inch red leads
#14 AWG insulated wire with 8 inch black leads
#14 AWG insulated wire with 19 inch yellow leads
#14 AWG insulated wire with 19 inch red leads
#14 AWG insulated wire with 19 inch black leads
RoHS Compliant version

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-104

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

1/4" x 1-1/4" Fuseholders
HFB In-Line Waterproof Series
Description
• For 1/4" x 1-1/4" (6.35mm x 31.8mm) fuses
• Ideal for harsh environments
• Water
• Salt Spray
• Ultraviolet Light
• Ozone
• -40° to 150°C temperature range
• Withstands many organic solvents
and rigorous shock and vibration
• Accepts #18 to #12 AWG copper wire
• High visibility yellow color
• Recommended crimp tools:
• Thomas & Betts – WT-112M
• California Terminal Products No. 1250
• Channelock No. 909
• Replacement contact clip: BK/1A2294
• UL flammability rating 94 HB
Ordering
• Specify packaging, product, and option code

Component
Body
Crimp

RoHS
2002/95/EC

Environmental Data
• Temperature Rating (RTI): 100°C
• Waterproof typically to a depth of 1 foot for 2 hours
• Vibration Resistance: Per MIL STD 810C
• Humidity: 85°C/85% relative humidity for 96 hours
• Brittle Point: Less than -60°C
• Abrasion: 54% NBS index
• Fluid resistance: Type and Class AA, BA, BC, BE, CA,
CE per ASTM D-2000 Standard Classification System
for rubbers
• Flame Resistance: Pass FMVSS302 and related slow
burning when tested in accordance with UL 94HB
• Ozone Resistance: Passed 70 Hours in 50 ppm ozone
per ASTM D-5
• Salt Spray: 15% for 166 hours = 0% volume swell
• Xenon Arc Weatherometer

Material
Thermoplastic Rubber
Copper Tin-Plated

SPECIFICATIONS
Product
Code
HFB

Voltage
Rating
AC
32V

Current
Rating
AC
30A

Tensile
Strength
(psi)
1100
1130
1190

100%
Mod.
(psi)
470
520
520

Elong.
(%)
375
350
350

• Heat Aging (% Retention of Mechanical
Properties at 125°C)
Parameters
Tensile Strength
% Elongation
100% Mod.

1
100
90
105

7
105
90
110

Days
15
115
90
120

30
120
90
120

41.7
120
90
120

Accessories - Fuseholders

Time
(Hrs)
0
500
1000

PACKAGING CODE
Packaging Code
Blank
BK

Description
10 pieces of fuseholders packed into a carton
100 pieces of fuseholders packed into a poly bag

OPTION CODE
Option Code
-R

Visit us on the web at:
www.cooperbussmann.com

Description
RoHS compliant version

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-105

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

1/4" x 1-1/4" Fuseholders
HFA In-Line Waterproof Series
Description
• For 1/4" x 1-1/4" (6.35mm x 31.8mm) fuses
• Waterproof for exposed locations
• Accepts #16 to #12 copper wire
• Copper crimp lead material
• Recommended crimp tools:
• Thomas & Betts – WT-112M
• Thomas & Betts – ERG-2002
• Channelock No. 909
• High temperature, flame retardant,
phenolic meets UL 94 HB
• Crimp or 1/4" quick connect terminals
• In-line connection
Agency Information
• UL Recognized: (IZLT2, E14853) HFA recognized with
use of No. 12 AWG copper conductors secured with
Thomas & Betts crimping tool WT-180 or WT-112M
• HFA-HH not UL Recognized
Environmental Data
• Temperature Rating (RTI): 150°C
Ordering
• Specify packaging, product, and option code

RoHS
2002/95/EC

Dimensions
Drawing Not to Scale

Component
Body
Crimp

Material
Phenolic
Copper, Tin-Plated

Accessories - Fuseholders

SPECIFICATIONS
Product
Code
HFA
HFA-HH

Voltage
Rating
250V
250V

Current
Rating
20A
20A

Terminal
Crimp
1/4 Quick Connect

PACKAGING CODE
Packaging Code
Blank
BK

Description
10 pieces of fuseholders packed into a carton
20 pieces of fuseholders packed into a carton

OPTION CODE
Option Code
-R

Visit us on the web at:
www.cooperbussmann.com

Description
RoHS compliant version

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-106

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

1/4" x 7/8" to 1-1/4" Fuseholders
HRK Universal In-Line Series
Description
• For 1/4" x 7/8" to 1/4" x 1-1/4" fuses
• #14 AWG copper wire leads
• 8" (203mm) leads
• Three springs furnished to accept different fuse lengths
• Wire leads are staked and soldered to the contacts of
the fuseholder
Ordering
• Specify packaging, product, and option code

RoHS
2002/95/EC

Dimensions
Drawing Not to Scale

SPECIFICATIONS
Product
Code
HRK

Voltage
Rating
32V

Current
Rating
15A

PACKAGING CODE
Packaging Code
Blank
BK

Description
10 pieces of fuseholder packed into a carton
100 pieces of fuseholder packed into a carton

Visit us on the web at:
www.cooperbussmann.com

Accessories - Fuseholders

OPTION CODE
Option Code
-R

Description
RoHS compliant version

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-107

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

MINI® Fuseholders
HHL & HHM
Description
• In-Line Fuseholders for MINI® Fuses.
• Voltage Rating: 32Vdc maximum
• Current Rating: See Table
• Body material withstands high temps. Protective cover
has removable straps.
Ordering
• Specify packaging and product code

RoHS
2002/95/EC

1.56"

.59"
.25"

.25"
4.75"

.41"

4.75"

MINI® Fuse Blade Type Holder

Accessories - Fuseholders

Catalog
No.

Description

HHL

Black fuseholder w/cover

HHL-B

Black fuseholder - Body only

HHM

Black fuseholder w/cover

HHM-B

Black fuseholder - Body only

HHM-C

Black cover only

Electrical
Connection

Fuse Size
2-20A
2-30A

#16 black lead wire;
4" length stripped to 1/4"
#12 red lead wire;
4" length stripped to 1/4"

Maximum Continuous
Current Rating
16A*
24A*

Bulk Products (Bulk Quantity - 1000 Pieces)
Catalog
No.
BK/HHL-R

Description
Black fuseholder - Body only

Electrical
Connection

Fuse Size
2-20A

#16 red lead wire;
4" length stripped to 1/4"

Maximum Continuous
Current Rating
16A*

* or 80% of fuse rating, whichever is less

A fuse must be properly and fully inserted into the holder to provide a solid connection. Poor or
improper insertion of the fuse can result in failure of the fuse and holder, thus not protecting the
device for which it was intended.

PACKAGING CODE
Packaging Code
BK

Visit us on the web at:
www.cooperbussmann.com

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Description
1,000 pieces in a box

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-108

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

ATC® Fuseholders
HHC, HHD, HHF, HHG
Description
• In-Line Fuseholders
• Voltage Rating: 32Vdc maximum
• Current Rating: See Table
Ordering
• Specify packaging and product code

RoHS
2002/95/EC

Dimensional Data
0.78"

0.91"

0.364"

0.5"
0.38" 0.30"

0.25"

4.0" + 0.25"

1.125"

Cover for HHD Fuseholder
Catalog Symbol: HHD-C

4.0" + 0.25"

Electrical Ratings
Description
Yellow fuseholder
Black fuseholder
Cover only
Black fuseholder
Black fuseholder w/ cover

Fuse
Size
3-20A
3-30A
Fits HHD only
3-20A
3-30A

Electrical
Connection
#16 black leadwire
#12 yellow leadwire
Clear polycarbonate
#16 yellow leadwire
#12 yellow leadwire

Maximum Continuous
Current Rating
16A*
24A*
16A*
24A*

Accessories - Fuseholders

Catalog
Code
HHC
HHD
HHD-C
HHF
HHG

* or 80% of fuse rating, whichever is less.
• For ATC® blade-type fuses.
• “Write-in” space for circuit identification on HHC holders (bright yellow)

Bulk Products (Bulk Quantity - 1000 Pieces)
Catalog
Code
BK/HHC-R
BK/HHF-B

Description
Yellow fuseholder
Black fuseholder w/ cover

Fuse
Size
3-20A
3-20A

Electrical
Connection
#16 red leadwire
#16 black leadwire

Maximum Continuous
Current Rating
16A*
16A*

* or 80% of fuse rating, whichever is less.

A fuse must be properly and fully inserted into the holder to provide a solid connection. Poor or
improper insertion of the fuse can result in failure of the fuse and holder, thus not protecting the
device for which it was intended.

PACKAGING CODE
Packaging Code
BK

Visit us on the web at:
www.cooperbussmann.com

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Description
1,000 pieces in a box

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-109

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

MAXI® Fuseholders
HHX
Description
• In-Line Fuseholders for MAXI® Fuses.
• Voltage Rating: 32Vdc maximum
• Current Rating: See Table
• Firewall mounting hole permits two or more holders to
be mounted together. Cover comes with a removable
strap.
Ordering
• Specify packaging and product code

RoHS
2002/95/EC

3.35"

6.70"

6.70"
1.37"

.265" DIA. HOLE

MAXI® Fuse Blade Type Holder
Catalog
Code

Description

HHX

Black fuseholder w/cover

HHX-B

Black fuseholder - Body only

HHX-C

Black cover only

Electrical
Connection

Fuse Size
20-60A

Maximum Continuous
Current Rating

#6 red lead wire;
5" length with blunt ends

48A*

Accessories - Fuseholders

* or 80% of fuse rating, whichever is less

A fuse must be properly and fully inserted into the holder to provide a solid connection. Poor or
improper insertion of the fuse can result in failure of the fuse and holder, thus not protecting the
device for which it was intended.

PACKAGING CODE
Packaging Code
BK

Visit us on the web at:
www.cooperbussmann.com

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Description
100 pieces in a box

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-110

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5 x 20mm Fuse Blocks
HTC Series
Description
• For 5 x 20mm fuses
• With snap-on cover
• BK/HTC-150M (Transparent Cover)
• Tight cluster mounting
• Clips made of nickel-tin plated spring-bronze
• Available only in bulk of 100 and 1,000 pieces
• High temperature thermoplastic meets:
• UL 94-VO
• Glow wire test: 960°C per IEC 695-2-1
Environmental Data
• Maximum suitable temperature: 110°C
• MSL Level 1 (conditions < 30°C / 85% RH)
Ordering
• Specify packaging and product code

RoHS
2002/95/EC

Mounting Holes

SPECIFICATIONS
Catalog
Number
HTC-15M

Voltage
Rating
AC
250V

Current
Rating
AC
6.3A

Watts
1.6W

Agency Information
• UL Recognized: IZLT2, E14853
• SEMKO Certificate: 204805
• VDE Certificate: 40004439

Dimensions - in (mm)
HTC-15M Fuse Block Only
Drawing Not to Scale

Dimensions - in (mm)
HTC-150M Fuse Block with Cover
Drawing Not to Scale

Component
Clip
Body

Material
Spring-Bronze, Bright Tin Plate
Thermoplastic

PACKAGING CODE
Packaging Code
BK
BK1

North America
Cooper Bussmann
Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Bussmann
Cooper Bussmann
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Bussmann
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

Accessories - Fuseblocks

Visit us on the web at:
www.cooperbussmann.com

Description
100 pieces of fuse blocks packed into a cardboard shelf package
1,000 pieces of fuse blocks packed into a carton

OC-111

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

1/4" x 1-1/4" Fuseblocks
S-8000 Series
Description
• For 1/4" x 1-1/4" (6.3mm x 32mm) fuses
• Bolt-in and snap-in mounting available
• Tight cluster mounting
• All types of terminal configurations
• Clips made of spring-bronze
• Anti-rotational pin provided
• Flame retardant thermoplastic meets UL 94 VO
Environmental Data
• Temperature Rating (RTI): The mounting body for all
devices (except those with Suffix –1-SNP or –W-SNP),
has a temperature rating of 130°C. The mounting body
for all devices with Suffix –1-SNP has a temperature rating of 110°C.
Agency Information
• UL Recognized: E14853
• CSA Certified: 47235

RoHS
2002/95/EC

Multiple Pole

SPECIFICATIONS

S-8000
S-8100
S-8200
S-8300

Voltage
Rating
AC
300V
300V
300V
300V

Voltage
Rating
DC
300V
300V
300V
300V

Dimensions
S-8000 Single Pole Bolt-In Mounting Series

Dimensions
No. of
Poles
1
2
3
4
5
6
7
8
9
10
11
12

Inches
A
*
1 1/8"
1 3/4"
2 3/8"
3"
3 5/8"
4 1/4"
4 7/8"
5 1/2"
6 1/8"
6 3/4"
7 3/8"

B
*
5/8"
1 1/4"
1 7/8"
2 1/2"
3 1/8"
3 3/4"
4 3/8"
5"
5 5/8"
6 1/4"
6 7/8"

Millimeters
A
B
*
*
28.6
15.9
44.4
31.8
60.3
47.6
76.2
63.5
92.1
79.4
108
95.2
123.8
111.1
139.7
127.0
155.6
142.9
171.4
158.8
187.3
174.6

Accessories - Fuseblocks

S-8000 Single Pole Snap-In Mounting Series

Component
Clip
Body

Material
Spring-Bronze, Bright Tin-Lead Plate
Thermoplastic

OC-112

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1/4" x 1-1/4" Fuseblocks
S-8000 Series

PACKAGING CODE
Packaging Code
Blank
BK/

Description
Varies with number of poles. Contact customer service.
Varies with number of poles. Contact customer service.

Ordering
• Specify packaging, product, and
option code

1. Packaging Code:
2. Series Number:
3. Type Terminal:

Example: BK/S-8001-01-SNP
BK/ S-8 0

 
1
2
3

01 – 01 – SNP



4
5
6

-R

7

BK/
S-8
0 = Solder
1 = 3/16" Quick Connect
2 = 1/4" Quick Connect
3 = Screw
4. Terminal Angle:
01 = Straight (0°)
02 = 40° Angle
03 = Side*
5. Number of Poles:
(01 – 12)
1X = One pole, No Mounting Stud
6. Mounting Style:
SNP = Snap-in Mounting
7. RoHS Compliant Version -R
*Available only in single pole

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

Accessories - Fuseblocks

Visit us on the web at:
www.cooperbussmann.com

OC-113

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

ESD Suppression Selection Guide

ESD Suppression Selection Guide
Polymer ESD Suppressors
Features:

RoHS
2002/95/EC

• Outstanding ESD protection for high frequency,
low voltage applications.
• Exceeds testing requirements outlined in IEC 61000-4-2
• Extremely low capacitance
• Very low leakage current
• Fast response time
• Bi-directional
• Surface mount
• Solder Termination
What is it:
Our Voltage Variable Material (VVM) has unique
properties that are highly preferred in ESD suppression applications. The polymer matrix responds to
an over-voltage condition by rapidly changing from
a high impedance state to a low impedance state.

Cooper Bussmann utilizes this polymeric matrix in
PolySurg ESD Suppressors for fast response, ultra
low capacitance, and very low current leakage. The
device is activated by over-voltage threat and clamps
to a low value to protect sensitive circuit components.

How it Works:
The PolySurg TR and MLP Series are board level
circuit protection devices designed exclusively for the
fast, transient over-voltages associated with ESD.
When a sufficient over-voltage occurs it exhibits a dramatic increase in the ability to conduct electrons. The
nature of the material creates a bi-directional part,
which means that only one device is required to provide complete ESD protection regardless of the surge
polarity. In a typical application, the device is placed
across a signal line leading to an integrated circuit
and ground. The device exhibits minimal capacitance

and is “invisible” to the circuit during the normal operation. Under normal operating voltages (typically 3 to
15V) the high impedance of the device insulates each
signal line from ground. When an ESD event occurs,
the voltage variable material switches to a conductive
state within nanoseconds. The voltage across signal
line collapses to the clamping level, and current is
shunted through the device to the ground. When the
overvoltage event ends, the circuit returns to its
normal operating state as the device switches back to
its >1012Ohm, high resistance state and “invisibility.”

PolySurg™ ESD Suppressor Selection Guide:
Part
Number

Package
Size

Lines

0402ESDA-MLP7
0603ESDA-MLP7
0603ESDA-TR1

0402
0603
0603

1
1
1

Operating
Voltage
(VDC)
0 ~ 30
0 ~ 30
0 ~ 24

Capacitance
(pF @ 1KHz ~

Current
Leakage

1.8GHz)

(nA @ 12VDC)

< 0.15
< 0.15
< 0.15

< 0.1
< 0.1
< 0.1

Clamp
Voltage
V
35
35
35

Specification
IEC61000-4-2, Level 4
IEC61000-4-2, Level 4
IEC61000-4-2, Level 4

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Device Marking
PolySurg™ ESD Suppressors are marked on the tape and reel packages, not individually. Since the product is bidirectional and symmetrical, no orientation marking is required.

ESD Suppression Selection Guide

ESD Suppression Selection Guide
Polymer ESD Suppressors

Test Methodology
Full product characterization requires use of multiple test methods. Each test method reveals unique information
about the device response. The results of all of the tests must be analyzed to fully understand the PolySurg™ ESD
Suppressor response to an over-voltage event.

Electrostatic Discharge (ESD) Pulse
(per IEC 61000-4-2)
100
90
80
Percent Current

The ESD pulse is the defining test for an ESD protective device. The ESD pulse is an extremely fast rising
transient event. The pulse, as characterized in IEC
61000-4-2, has a rise time of less than 1ns, peak currents up to 45A, and voltage levels to 15 kV.
Characteristics determined by this test are those such
as voltage overshoot, peak voltage, clamping voltage,
peak current, and device resistance.
Due to the extremely fast rate of rise of the ESD pulse,
the test setup can have a definite impact on the above
factors. Variables such as wiring inductance and probe
capacitance can produce inaccurate readings on an
otherwise capable oscilloscope.

70
60
50
40
30
20
10
0
-10

0

10

20

30

40

50

60

70

80

90

Time (nS)

Transmission Line Pulse (TLP)

The actual implementation of this technique produces a
waveform that has a slightly slower rise time that the
ESD pulse but can be correlated to the deliver approximately the same surge current and energy. This controlled impedance pulse provides a more accurate depiction of the trigger voltage of the device because of the
reduced voltage overshoot caused by a fast rising transient and the reactive components of the test fixture.

110
90
Percent Voltage

The Transmission Line Pulse tester implements a controlled impedance cable to deliver a square wave current
pulse. The advantage of this technique is that the constant current of the square wave allows the behavior of
the protection structure to be more accurately studied.

70
50
30
10
-10
-10

40

90

140

190

Time (nS)
Input Voltage

Output Voltage Activated

Definition of Terms
Clamp Voltage – The voltage at which the PolySurg™ device stabilizes during the transition from high to low impedance. This is the voltage
experienced by the circuit, after stabilizing, for the duration of the ESD transient.
Trigger Voltage – The voltage at which the PolySurg™ device begins to function. When the ESD threat voltage reaches this level,
the PolySurg™ device begins the transition from high impedance to low impedance, shunting the ESD energy to ground.
Threat Voltage – The voltage that the test equipment is set to operate (i.e. the voltage across the discharge capacitor).
Peak Current – The maximum instantaneous current level that a device will receive. IEC-61000-4-2 states that the peak current should be
30A at 8kV ESD and 45A at 15kV ESD.

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Selected Characterization Data
Figure 1. Typical Device Response to 8kV ESD

ESD Transient Pulse Energy Controlled by
PolySurg™
Figure 1 shows typical PolySurg™ ESD Suppressor
response to an 8 kV contact ESD pulse. Triggered
polymer in the device conducts excess energy to ground
and prevents system damage by ESD transient threat. As
the polymer resistance drops current flows to ground.
The top scope trace indicates current, and the bottom
scope trace indicates voltage.

Protects against ESD Voltage Transient
without Affecting Signal Quality

Figure 2. ESDA device induced interference with Signal Quality
0
-0.1

PolySurg™ ESD Suppressors have an ultra low capacitance of <0.15pF and when typically installed from the
signal line to ground have a negligible effect on the signal.

drop in attenuation (dB)

-0.2

As Figure 2 shows, the test conducted with a precision
network analyzer on a 50 Ω circuit at up to 6GHz. Only a
0.2dB deviation from the original signal was recorded.
The setup was similar to the addition of the PolySurg™
ESD Suppressor to a circuit with very fast digital signal or
a cellular phone antenna.

-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
-0.9
-1

Signal Frequency does not affect the
Capacitance of the Device
The device capacitance is very low and constant over
wide frequency range. The typical capacitance is less than
0.15pF over the tested range of 0.1MHz to 1.8GHz. In
addition, as shown in Figure 3, the capacitance will
remain same over the life cycle of the device (i.e. the
number of the ESD pulse does not change the device
capacitance.)

0

1

2

3
GHz

4

5

6

Figure 3. Capacitance vs. Frequency
0.20
0.19
0.18
Capacitance (pF)

ESD Suppression Selection Guide

ESD Suppression Selection Guide
Polymer ESD Suppressors

0.17
0 Pulse
0.16

100 Pulse
200 Pulse

0.15

300 Pulse
400 Pulse

0.14

500 Pulse
0.13
0.12
0.11
0.10
0

500

1000

1500

2000

Frequency (MHz)

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Clamp Voltage Remains Consistent
Despite Repeated ESD Pulses

PolySurg™ ESD Suppressors have been tested with
fast rate ESD pulses at 8kV contact discharge.
Clamping voltage measured at every pulse shows
minimal changes throughout the test.

60

ESD Clamping Voltage (V)

As Figure 4 shows, PolySurg™ ESD Suppressors are
highly reliable and stable over hundreds of pulses.

Figure 4. ESD Clamping Voltage vs. Number of 8 kV ESD Pulse
70

ESD Suppression Selection Guide

ESD Suppression Selection Guide
Polymer ESD Suppressors

50

40

30

20

10

0
0

100

200

300

400

500

600

Number of 8 kV ESD Pulses

Typical non-triggered (Off State) Current
Leakage is Very Low at Normal Operating
Voltages and Temperatures

Reference Temperature

0.8

Leakage Current (nA)

As shown by Figure 5 the current leakage of the
PolySurg™ ESD Suppressor is typically very low, well
under 1nA, even over 12VDC operating voltage.
Some increase in the current leakage may be
expected at much higher operating voltage and
elevated temperature.

Figure 5. Average Off State Current Leakage vs. Temperature
1

0.6

0.4

0.2
24 VDC
12 VDC
6 VDC

0
-55

-30

-5

20

45

70

95

120

Temperature (°C)

Visit us on the web at:
www.cooperbussmann.com

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-117

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0402ESDA-MLP
MLP Series ESD Suppressor
Features & Benefits

0402ESDA-MLP, MLP Series ESD Suppressor

• Ultra-low capacitance (0.05pF typ.) ideal for high
speed data applications
• Provides ESD protection with fast response time
(<1ns) allowing equipment to pass IEC 61000-4-2 level 4 test
• Single-line, bi-directional device for placement flexibility
• Low profile 0402/1005 design for board space savings
• Low leakage current (<0.1nA typ.) reduces power consumption

RoHS
2002/95/EC

Applications
• Computers & Peripherals

• PDA’s

• HDTV Equipment

• Digital Still Cameras

• USB 2.0

• DVD Players

• Digital Camcorders

• IEEE 1394

• A/V Equipment

• MP3 / Multimedia Players

• HDMI

• Satellite Radio

• Set Top Boxes

• DVI

• Cell Phones

• External Storage

• High Speed Ethernet

• DSL Modems

• Infiniband®

Description
The PolySurg™ 0402ESDA-MLP ESD Suppressors
protect valuable high-speed data circuits from ESD
damage without distorting data signals as a result of
its ultra-low (0.05pF typical) capacitance.

Product Dimensions: mm [inches]

• High Speed Data Ports

Ordering Information
Catalog Number
0402ESDA-MLP7
0402ESDA-MLP8

Packaging
10,000 pieces in paper tape on
7" (178mm) reel
2,500 pieces in paper tape on
7" (178mm) reel

Solder Pad Recommendation:
mm [inches]
2.20

0.70

0.40

Design Considerations
The location in the circuit for the MLP series has to be carefully determined. For better performance, the device should be placed
as close to the signal input as possible and ahead of any other component. Due to the high current associated with an ESD
event, it is recommended to use a “0-stub” pad design (pad directly on the signal/data line and second pad directly on common
ground).

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0402ESDA-MLP
MLP Series ESD Suppressor
Electrical Characteristics
Characteristic

Notes:
1. Per IEC61000-4-2, Level 4 waveform (8kV direct, 30A)
measured 30ns after initiation of pulse.
2. Trigger measurement made using Transmission Line Pulse
(TLP) method.
3. Minor shifting in characteristics may be observed over
multiple ESD pulses at very rapid rate.

Value

Rated Voltage

30VDC maximum
35V typical

Trigger Voltage2

300V typical

Capacitance (@1MHz)

0.05pF typ., 0.15pF max.

Attenuation Change (0-6GHz)

-0.2dB typical

Leakage Current (@12VDC)

<0.1nA typical

0402ESDA-MLP, MLP Series ESD Suppressor

Clamping Voltage

1

ESD Capability
IEC61000-4-2 Direct Discharge

8kV typical

IEC61000-4-2 Air Discharge

15kV typical

ESD Pulse Withstand1

>1000 typical

Environmental Specifications:
• Load Humidity: 12VDC per EIA/IS-772 Para. 4.4.2, +85°C, 85% RH for 1000 hours
• Thermal Shock: EIA/IS-722 Para 4.6, Air to Air -55°C to +125°C, 5 cycles
• Moisture Resistance Test: MIL-STD-202G Method 106G, 10 cycles
• Mechanical Shock: EIA/IS-722 Para. 4.9
• Vibration: EIA/IS-722 Para. 4.10
• Resistance to Solvent: EIA/IS-722 Para. 4.11
• Operating & Storage Temperature Range: -55°C to +125°C

Soldering Recommendations
• Compatible with lead and lead-free solder reflow processes
• Peak reflow temperatures and durations:
• IR Reflow = 260°C max for 10 sec. max.
• Wave Solder = 260°C max. for 10 sec. max.
• Recommended IR Reflow Profile:

Visit us on the web at:
www.cooperbussmann.com

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-119

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0603ESDA-MLP
MLP Series ESD Suppressor
Features & Benefits
• Ultra-low capacitance (0.05pF typ.) ideal for high
speed data applications
• Provides ESD protection with fast response time
(<1ns) allowing equipment to pass IEC 61000-4-2 level 4 test
• Single-line, bi-directional device for placement flexibility
• Low profile 0603/1608 design for board space savings
• Low leakage current (<0.1nA typ.) reduces power consumption

RoHS
2002/95/EC

0603ESDA-MLP, MLP Series Suppressor

Applications
• Computers & Peripherals

• PDA’s

• HDTV Equipment

• Digital Still Cameras

• USB 2.0

• DVD Players

• Digital Camcorders

• IEEE 1394

• A/V Equipment

• MP3 / Multimedia Players

• HDMI

• Satellite Radio

• Set Top Boxes

• DVI

• Cell Phones

• External Storage

• High Speed Ethernet

• DSL Modems

• Infiniband®

Description
The PolySurg™ 0603ESDA-MLP ESD Suppressors
protect valuable high-speed data circuits from ESD
damage without distorting data signals as a result of
its ultra-low (0.05pF typical) capacitance.

Product Dimensions: mm [inches]

• High Speed Data Ports

Ordering Information
Catalog Number

Packaging

0603ESDA-MLP7

5,000 pieces in paper tape on
7" (178mm) reel

Solder Pad Recommendation:
mm [inches]
1.25
(0.05)

0.90
(0.035)

0.50
(0.02)

Design Considerations
The location in the circuit for the MLP series has to be carefully determined. For better performance, the device should be placed
as close to the signal input as possible and ahead of any other component. Due to the high current associated with an ESD
event, it is recommended to use a “0-stub” pad design (pad directly on the signal/data line and second pad directly on common
ground).

OC-120

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0603ESDA-MLP
MLP Series ESD Suppressor
Electrical Characteristics
Characteristic

Notes:
1. Per IEC61000-4-2, Level 4 waveform (8kV direct, 30A)
measured 30ns after initiation of pulse.
2. Trigger measurement made using Transmission Line Pulse
(TLP) method.
3. Minor shifting in characteristics may be observed over
multiple ESD pulses at very rapid rate.

Value

Rated Voltage

30VDC maximum

Clamping Voltage

35V typical

Trigger Voltage2

300V typical

Capacitance (@1MHz)

0.05pF typ., 0.15pF max.

Attenuation Change (0-6GHz)

-0.2dB typical

Leakage Current (@12VDC)

<0.1nA typical

1

ESD Capability
IEC61000-4-2 Direct Discharge

8kV typical

IEC61000-4-2 Air Discharge

15kV typical

ESD Pulse Withstand1

>1000 typical

Environmental Specifications:
• Load Humidity: 12VDC per EIA/IS-772 Para. 4.4.2, +85°C, 85% RH for 1000 hours
• Thermal Shock: EIA/IS-722 Para 4.6, Air to Air -55°C to +125°C, 5 cycles
• Moisture Resistance Test: MIL-STD-202G Method 106G, 10 cycles
• Mechanical Shock: EIA/IS-722 Para. 4.9
• Vibration: EIA/IS-722 Para. 4.10
• Resistance to Solvent: EIA/IS-722 Para. 4.11
• Operating & Storage Temperature Range: -55°C to +125°C
0603ESDA-MLP, MLP Series Suppressor

Soldering Recommendations
• Compatible with lead and lead-free solder reflow processes
• Peak reflow temperatures and durations:
• IR Reflow = 260°C max for 10 sec. max.
• Wave Solder = 260°C max. for 10 sec. max.
• Recommended IR Reflow Profile:

Visit us on the web at:
www.cooperbussmann.com

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-121

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0603ESDA-TR
TR Series ESD Suppressor
Features:

RoHS
2002/95/EC

• 0603/1608 foot print
• Ideal ESD protection for high frequency, low voltage applications.
• Exceeds testing requirements outlined in IEC 61000-4-2
• Ultra low capacitance (0.15pF maximum)
• Very low leakage current
• Fast response time
• Bi-directional
• Surface mount

Applications
• Computers & Peripherals

• PDA’s

• HDTV Equipment

• Digital Still Cameras

• USB 2.0

• DVD Players

• Digital Camcorders

• IEEE 1394

• A/V Equipment

• MP3 / Multimedia Players

• HDMI

• Satellite Radio

• Set Top Boxes

• DVI

• Cell Phones

• External Storage

• High Speed Ethernet

• DSL Modems

• Infiniband®

Description

• High Speed Data Ports

Ordering Information

The PolySurg™ 0603ESDA-TR ESD Suppressors
protect valuable high-speed data circuits from ESD
damage without distorting data signals as a result of

Catalog Number

Packaging

0603ESDA-TR1

5,000 pieces in paper tape on
7" (178mm) reel

its ultra-low (0.15pF maximum) capacitance.

Part Ratings and Characteristics:
Performance Characteristics

Units

Continuous operating voltage

VDC

-

-

24

V

-

35

60

0603ESDA-TR, TR Series ESD Suppressor

Clamping voltage2

Min

Typ

Max

Trigger voltage3

V

-

125

-

ESD Threat voltage capability4

kV

-

8

15

Capacitance (@ 1 KHz ~ 1.8GHz)

pF

-

-

0.15

Leakage current (@ 12 VDC)

nA

0.01

<0.1

-

2

Peak current

A

-

30

45

Operating temperature

°C

-56

+25

+105

ESD pulse withstand 2

# pulses

20

>5001

-

Notes:
1. Some shifting in characteristics may occur when tested over
several hundred ESD pulses at very rapid rate of 1 pulse per
second or faster.
2. Per IEC 61000-4-2, 30A @ 8kV, level 4, clamp measurement
made 30ns after initiation of pulse, all tests in contact discharge
mode.
3. Trigger measurement made using Transmission Line Pulse
(TLP) method
4. PolySURG™ devices are capable of withstanding up to a 15 kV,
45A ESD pulse. Device ratings are given at 8kV per Note 1,
unless otherwise specified.

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0603ESDA-TR
TR Series ESD Suppressor
Product Dimension
R
Recommended Solder
Pad Outline
(per IPC-SM-782)

H

T

L

0.60 min
(.023 min)

W
EIA Size

L

W

H

T

1.1 ref
(.043 ref)

R

mm (in)

1.60 ± 0.10 0.80 ± 0.10 0.50 ± 0.10 0.30 ± 0.20 0.70 ± 0.10
(.063 ± .004) (.031 ± .004) (.020 ± .004) (.012 ± .008) (.028 ± .004)

0603ESDA

1.0 max
(.039 max)

Tape-and-Reel Specification
4.0±0.1
(.157±.004)

mm (inches)
2.0±0.05
(.079±.002)

B

2.0±0.75
(.079±.030)

3.5±0.05
(.138±.002)

A

8.0±0.30
(.315±.012)

4.0±0.1
(.157±.004)

1.5±0.10
(.059±.004)

Dimension

0603

A

1.90±0.20
(.075±0.008)

B

1.10±0.20
(.043±0.008)

1.75±0.1
(.069±.004)

2.0±0.5
(.080±.020)

178.0±2.0
(7.008±.080)

21±0.8
(.827±.032)
13.0±0.5
(.512±.020)

60.0±1.5
(2.362±.059)

9.0±1.5
(.354±.059)

Environmental Specifications:

OC-123

0603ESDA-TR, TR Series ESD Suppressor

• Moisture Resistance per EIA/IS-722 Paragraph 4.4.2. This standard is based upon MIL-STD-202G Method 103B but with temperature and relative humidity at +85°C and 85% RH respectively. Test condition ‘A’ (240Hr) per MIL-STD-202G
• Thermal shock: MIL-STD-202, Method 107G, -55°C to 125°C, 30 min. cycle, 10 cycles
• Vibration: MIL-STD-202F, Method 201A,(10 to 55 to 10 Hz, 1 min. cycle, 2 hrs each in X-Y-Z)
• Chemical resistance: ASTM D-543, 4 hrs @ 40°C, 3 solutions (H2O, detergent solution, defluxer)
• Operating temperature characteristics, measurement at +25°C, +105°C and -56°C
• Full load voltage: 14.4VDC, 18VDC & 24VDC for 1000 hrs, 25°C
• Solder leach resistance and terminal adhesion: Per EIA-576
• Solderability: MIL-STD-202, Method 208 (95% coverage)

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

0603ESDA-TR
TR Series ESD Suppressor
Device Marking
PolySurg™ ESD Suppressors are marked on the tape and reel packages, not individually. Since the product is bi-directional and
symmetrical, no orientation marking is required.

Design Consideration
The location in the circuit for the TR series has to be carefully determined. For better performance, the device should be placed
as close to the signal input as possible and ahead of any other component. Due to the high current associated with an ESD
event, it is recommended to use a “0-stub” pad design (pad directly on the signal/data line and second pad directly on common
ground).

Processing Recommendations
The TR series currently has a convex profile on the top surface of the part. This profile is a result of the construction of the deice.
They can be processed using standard pick-and-place equipment. The placement and processing techniques for these devices are
similar to those used for chip resistors and chip capacitors.

Soldering Recommendations

0603ESDA-TR, TR Series ESD Suppressor

• Compatible with lead and lead-free solder reflow processes
• Peak reflow temperatures and durations:
• IR Reflow = 260°C max for 10 sec. max.
• Wave Solder = 260°C max. for 10 sec. max.
• Recommended IR Reflow Profile:

Visit us on the web at:
www.cooperbussmann.com

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-124

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ESD Protection of Set Top Appliances with PolySurg™ ESD Suppressors
Why are Set Top boxes vulnerable to ESD
The more sophisticated boxes include a variety of I/O jacks
such as front panel USB, Audio/Video, S-Video, rear panel
Satellite, cable, TV antenna, Wireless transmitter connection,
home networking HPNA option, Toslink digital input, connections for CD, DVD,VCR, Outputs for Video, Audio, and more.
Most of these jacks are susceptible to ESD threat.

What Are Set Top Boxes?
The continuing trend is to link broadband signal delivery to the
home entertainment display, and other devices via set top
boxes. Set top boxes used to be just an analog cable
tuner/decoder but now it includes the likes of digital cable,
satellite controller, internet service controllers, digital video
recording systems and home networking.
These devices allow the various cable and satellite signal operators to deliver a wide variety of services from television to
internet and the hardware manufacturers can provide many
features and benefits including home networking capabilities.
There is digital video recording onto hard disk drives, replacing
the cassette format, allowing pause and replay of and live television, or interactive TV. There are new standards being created to facilitate the design of the boxes such as a recent reference blueprint development by communications chipmaker
Broadcom using the Microsoft interactive TV software system.
The set top box is going to be a high volume commodity with
many forms and functions.

Application Notes, ESD Suppression

Application Notes
ESD Suppression

The PolySurg™ solution to the ESD protection problem
Utilize the 0402ESDA-MLP, 0603ESDA-MLP, or 0603ESDATR1 PolySurg™ devices to protect the set top box electronics
from catastrophic ESD damage at each potential outside metal
contact or connector on each line. Audio, Video, RF, USB and
RS-232 lines may be protected from ESD TVS occurrences on
set top systems.
Design Wins with Set Top boxes
Cooper Bussmann has recorded some notable design wins
already with it’s PolySurg™ ESD Suppressors in applications
involving the protection of set top systems.

Protection Against ESD Threat for Set Top System Input/Output Ports with PolySurg™
Audio Port

AC Input

Video Port

RF Input
Antenna
Cable
Satellite
Front
Panel
I/O Port
Smart Card
RS-232
Keyboard
Audio Port

Video Port
S-Video Port

Set-Top Box
Digital Satellite Receiver
High Definition Digital Receiver
Digital Cable TV Converter
Interactive Internet TV Terminal
Digital Video Recorder

S-Video Port

Digital Audio Port

RJ - 45, Network

Future
Protection
Requirements

RF Out
TV / VCR
Other Device
USB / USB 2.0

IEEE-1284,
Parallel

A Typical Set Top Box Rear View

Digital Audio Port

RJ - 11

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Application Notes, ESD Suppression

Application Notes
ESD Suppression

Typical ESD Protection Applications with
PolySurg™ 0402ESDA-MLP, 0603ESDA-MLP, or 0603ESDA-TR
USB Controller
V+ Data (+)

Data (-)

GND

USB
Port

Amplifier

Audio Output

Video Processor

Video Output

RF
Modulator

RF
Controller
RF Input
RF Output

Visit us on the web at:
www.cooperbussmann.com

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-126

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ESD Protection of High-Speed Data Lines
DVI/HDMI High Speed Date Rates
Communication data lines continue to be increasingly vulnerable to ESD transients. The ever-increasing bandwidth
of the faster data lines such as the 10/100 or Gigabit
Ethernet, USB 2.0, IEEE-1394b, make the traditional ESD
protection schemes such as silicon based devices, or multi
layer varistors less desirable, due to signal distortion from
the relatively high capacitance of these components.

-0.1
-0.2
drop in attenuation (dB)

PolySurg™ ESD Suppressors
The typical capacitance of the device (0402ESDA-MLP,
0603ESDA-MLP, or 0603ESDA-TR) is measured to be
below 0.15pF, in a range of 0.1 kHz to nearly 2 GHz. The
low capacitance throughout this wide frequency range
makes these devices suitable for ESD protection of low
analog signals to fast digital data lines.

0

Application Notes, ESD Suppression

Application Notes
ESD Suppression

-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
-0.9
-1

0

1

2

3
GHz

4

5

6

Chart 2. Additional Attenuation in a 50Ohm System
due to the PolySurg™ ESD Suppressor

1

Example of devices that PolySurg™ ESD Suppressors can
protect from ESD:
• Network interface cards for desktops
• PC cards for laptops
• DSL / Cable modems.
• Routers and switches /hubs

0.9

C a pac it an ce (p F)

0.8
0.7
0.6
0.5
0.4
0.3

Selected Protection Applications

0.2
0.1
0
0.1

1

10

100

1000

10000

Frequency (MHz)

Chart 1. The Capacitance of a PolySurg™ ESD
Suppressor from 0.1MHz to 1.8GHz
Another special characteristic of the PolySurg™ ESD
Suppressor is that it is virtually invisible to the circuit at
normal operation. The off-state resistance of the device is
over 1013 Ohms, and the typical current leakage of the
device is a negligible, 0.01nA at 12VDC. As Chart 2 shows,
the additional attenuation in a 50ohm circuit measured at
frequencies up to 6GHz is less than -0.2dbB.

Ethernet ports: The RJ-45 is the most common Ethernet
connection. The typical 10Base-T/100Base-TX uses 4 out
of 8 lines. Each line in use can be protected with one
PolySurg™ ESD Suppressor installed between the data line
and the ground. For the best performance, place the devices
at the closest location to the RJ-45 port (See Figure 1)

RX+

Filter
Transformer

RX TX +
TX -

Controller

RJ -45

Figure 1. The ESD Protection of 10 / 100 Ethernet (RJ-45)
device with a PolySurg™ ESD Suppressor
Firewire: The IEEE-1394 (Firewire) series are the newest
serial ports for computer and other instruments with data
transfer rates up to 1,600Mbp (1394a is 400Mbps, and
1394b will be 800~1,6000Mbps.) This higher transfer
speed data is more easily subject to distortion (Chart 3).
The PolySurg™ ESD Suppressor can protect data lines
from ESD without distorting the high speed signal possible
from IEEE-1394 connection. All data lines should be
protected individually. (See Figure 2)

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Application Notes, ESD Suppression

Application Notes
ESD Suppression
800M bps

PWR
Data
Data
GND

(IEE1394)

USB 2.0
Controller
USB 2.0

Figure 3. ESD protection of USB 2.0 devices
with a PolySurg™ ESD Suppressor
Ideal Signal

50pF Capacitance

0603ESDA

Chart 3. Signal distortion comparisons at 800Mbps

PWR
GND
Data
Data
Data
Data

Controller

Special Applications
When the unused data port is connected to a higher operating voltage such as 24V or higher for special applications, the PolySurg™ ESD Suppressor can be installed in
series for ESD protection on the higher voltage line. The
operating voltage capability will be increased without
changing total capacitance or the current leakage of the
devices.

IEEE-1394
High Voltage
RX+
RXTX +
TX -

Filter
Transformer

Controller

RJ-45

Figure 2. The ESD Protection of Typical IEEE-1394a device
with a PolySurg™ ESD Suppressor
Example of devices that PolySurg™ ESD Suppressor can
protect from ESD:
• Firewire interface cards
• Digital camcorders
• Printers / scanners
• Other peripherals with Firewire capability

Figure 4. The Parallel connection for high voltage line
protection using a PolySurg™ ESD Suppressor on RJ-45

USB 2.0: The USB 2.0 has a fast data transfer rate of
400Mbps. A device equipped with USB 2.0 will give the
best performance when protected with the ultra low capacitance PolySurg ESD Suppressor.This will result in much
less data distortion than if zener diodes or multi layer
varistors are used for ESD protection (See Figure 3)

Visit us on the web at:
www.cooperbussmann.com

North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645

Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719

Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160

OC-128

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

ESD Protection for High Speed Digital Video Solutions (DVI & HDMI)
High speed, uncompressed, digital video solutions such as Digital
Visual Interface (DVI) and High Definition Multimedia Interface
(HDMI) utilize small geometry CMOS processes in order to provide maximum performance in a small package. However these
geometries are more susceptible to electrostatic discharge (ESD)
and the high-speed digital signals present a real challenge when
selecting an appropriate protection device.
DVI/HDMI High Speed Date Rates
DVI equipment can, currently, transmit at up to 1.6 Gbps for a
1600 x 1200 resolution signal. The receiver end can support up to
1.08 Gbps for 1280 x 1024 resolution but will soon increase to
1.65 Gbps. HDMI is an advancement of DVI that handles both
audio and video signals with enough bandwidth for data rates of
up to 5 Gbps. These high-speed data rates require any ESD protection device to have low capacitance in order to minimize signal
distortion. At high frequency any capacitance will be seen as a low
impedance path to ground, thus loading the data signal. Figure 1
shows the minimal effect of of a PolySurg™ ESD Suppressor on
an 800 Mbps data signal compared to a 50pF capacitor.
800Mbps
(IEE1394)

Vcc

I1

Application Notes, ESD Suppression

Application Notes
ESD Suppression

I2

GND

Figure 2 – Rail to Rail Diode Connection
In order to make a low capacitance diode a small junction area is
used which presents a high resistance during ESD transients.
Also, diode response time is slow compared to the ESD voltage
rise time and the complete solution has significant parasitic inductance associated with the device leads and tracking. All this results
in a large amount of voltage overshoot and a much higher clamping voltage. With the HDMI/DVI chip still exposed to several hundred or even one thousand volts following an ESD event, using
this protection technique, there is potentially enough stress to
damage the device.
Other solutions such as zener diodes, multi-layer varistors (MLV’s)
and TVS all exhibit levels of capacitance that are too large for
them to be practical solutions in DVI and HDMI applications. With
capacitance values from 25pF to 500pF coupled with leakage currents of 0.5-50μA the level of loading on the signal lines becomes
unacceptable.

Ideal Signal

50pF Capacitance

0603ESDA

Figure 1 – IEE1394 Signal Distortion due to 50pF and
0603ESDA PolySurg™ ESD Suppressor
Traditional low capacitance steering diode solutions have a number of problems when used in high-speed data applications such
as HDMI & DVI. Diodes are typically connected rail to rail as
shown in Figure 2. During a negative voltage transient the bottom
diode conducts clamping the voltage to a diode drop below
ground. During a positive voltage transient the top diode will conduct the surge current (I1) into the power rail. Dumping the surge
current into an unprotected supply rail can cause latch up of the
protection circuit, so an additional transient voltage suppression
(TVS) device between the supply rail and ground is required.
Typically discrete steering diodes are not rated for the high transient currents associated with ESD. This misuse results in a short
cycle life and eventual diode failure, which is commonly in short
circuit mode. This short circuit failure mode usually results in the
equipment no longer functioning, even though the ESD event has
passed. The preferred failure mode is open, since the equipment
will certainly not operate with a shorted device, but has a potential
to operate longer if the device were to fail open.

PolySurg™ ESD Suppressor Product Family
The Cooper Bussmann PolySurg™ ESD Suppressor provides the
solution to the problem of providing ESD protection for these new
high-speed circuits. This product is a bi-directional device that has
leakage current of less than 1nA and capacitance less than
0.15pF. This ultra-low capacitance makes the PolySurg™ ESD
Suppressor a viable solution for high data rate protocols like HDMI
and DVI. With an insertion loss of less than -0.2dB at frequencies
up to 6GHz the PolySurg™ ESD Suppressor is invisible to the
circuit, introducing no additional loading or signal distortion.
The PolySurg™ ESD Suppressor product family is comprised of
the 0402ESDA-MLP, 0603ESDA-MLP, and 0603ESDA-TR series
ESD suppression devices. All are discrete devices exhibiting
ultra-low capacitance to maintain signal integrity while protecting
all but the most sensitive IC’s from the harmful effects of ESD
strikes up to 15kV (air discharge).
Summary
Commercial products require ESD surge protection of all the interface hardware schemes. New higher end consumer electronics
are increasingly using high data rate protocols such as DVI and
HDMI. The traditional protection devices have all been used with
varying success, however the increase in data rates now indicates
a need for ultra low capacitance devices, such as Cooper
Bussmann’s PolySurg™ ESD Suppressors.

OC-129

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Overcurrent
Protection Group

NOTES

OC-130

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Overcurrent
Protection Group

NOTES

OC-131

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Overcurrent
Protection Group

NOTES

OC-132

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POWER MANAGEMENT

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Table of Contents
Inductor Selection Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-8
FP2 Series, FLAT-PAC™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-10
High Current
7.2 x 6.7 x 3.0 & 5.0 mm Inductors
FP3 Series, FLAT-PAC™ 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-13
High Current
7.25 x 6.5 x 3 mm Powder Iron Inductors
FP4 Series, FLAT-PAC™ 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-15
High Current
6.8 x 10.2 x 5.0 mm Inductors
FP1308 Series, FLAT-PAC™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-18
High Current
NEW
13.7 x 12.95 x 8.0 mm Inductors
HCP0703 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-21
High Current
NEW
7.3 x 7.0 x 3.0 mm Pressed Power Inductors
HCP1104 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-25
High Current
NEW
11.5 x 10.25 x 4.0 mm Pressed Power Inductors
HCP1305 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-28
High Current
NEW
13.8 x 12.9 x 5.0 mm Pressed Power Inductors
HCF1305 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-31
High Current
12.5 x 12.5 x 5.0 mm Power Inductors
HC1 Series, HIGH CURRENT 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-34
High Current
13.0 x 13.0 x 10.0 mm Power Inductors
HC2LP Series, HIGH CURRENT 2LP . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-37
High Current
19.2 x 19.2 x 11.18 mm Power Inductors
PM-1

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Table of Contents

HC3 Series, HIGH CURRENT 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-39
High Current
30.0 x 25.3 x 17.5 mm High Power Inductors
HC7 Series, HIGH CURRENT 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-41
High Current
13.0 x 13.8 x 5.5 mm Powder Iron, Power Inductors
HC8 Series, HIGH CURRENT 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-43
High Current
10.4 x 10.4 x 4.0 mm Powder Iron, Power Inductors
HC8LP Series, HIGH CURRENT 8LP . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-45
High Current
10.4 x 10.4 x 3.5 mm Powder Iron, Power Inductors
HC9 Series, HIGH CURRENT 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-48
High Current
NEW
13.8 x 13.1 x 7.5 mm Powder Iron, Power Inductors
HCPT1309 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-50
High Current
NEW
13.2 x 14.0 x 9.0 mm Through-Hole, Powder Iron Inductor
CPL Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-52
High Current
NEW
Multi-Phase Power Inductors
DR1030 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-56
Shielded Drum
NEW
10.5 x 10.3 x 3.0 mm Shielded Power Inductors
DR1040 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-59
Shielded Drum
NEW
10.5 x 10.3 x 4.0 mm Shielded Power Inductors
DR1050 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-62
Shielded Drum
NEW
10.5 x 10.3 x 5.0 mm Shielded Power Inductors
PM-2

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Table of Contents

DR Series (DR73, DR74, DR125, DR127) . . . . . . . . . . . . . . . . . . . . . . . . Page PM-65
Shielded Drum
Shielded Power Inductors
DR124 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-70
Shielded Drum
NEW
12.3 x 12.3 x 4.5 mm Shielded Power Inductors
DRQ Series (DRQ73, DRQ74, DRQ125, DRQ127) . . . . . . . . . . . . . . . . Page PM-73
Shielded Drum
Dual Winding, Shielded Inductor/Transformer
LDS0705 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-80
Shielded Drum
NEW
8.0 x 7.2 x 5.0 mm Shielded Power Inductors
SD3110 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-83
Low Profile Shielded Drum
NEW
3.1 x 3.1 x 1.0 mm Shielded Inductors
SD3112 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-86
Low Profile Shielded Drum
NEW
3.1 x 3.1 x 1.2 mm Shielded Inductors
SD3114 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-89
Low Profile Shielded Drum
NEW
3.1 x 3.1 x 1.4 mm Shielded Inductors
SD3118 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-92
Low Profile Shielded Drum
NEW
3.1 x 3.1 x 1.8 mm Shielded Inductors
SD38 Series (SD3812, SD3814) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-95
Low Profile Shielded Drum
4.0 x 4.0 x 1.2 & 1.4 mm High Power, Shielded Inductors
SDH3812 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-98
Low Profile Shielded Drum
NEW
4.0 x 4.0 x 1.2 mm High Power, Shielded Inductors
PM-3

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Table of Contents

SD Series (SD10, SD12, SD14, SD18, SD20, SD25) . . . . . . . . . . . . . . Page PM-101
Low Profile Shielded Drum
5.2 x 5.2 x (6) Various Heights, Shielded Inductors
SDQ Series (SDQ12, SDQ25) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-108
Low Profile Shielded Drum
Dual Winding, Shielded Inductor/Transformer
SD52 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-111
Low Profile Shielded Drum
5.2 x 5.2 x 2.0 mm Shielded Inductors
SD53 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-114
Low Profile Shielded Drum
NEW
5.2 x 5.2 x 3.0 mm Shielded Inductors
SD6020 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-117
Low Profile Shielded Drum
NEW
6.0 x 6.0 x 2.0 mm Shielded Inductors
SD6030 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-120
Low Profile Shielded Drum
NEW
6.0 x 6.0 x 3.0 mm Shielded Inductors
SD7030 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-123
Low Profile Shielded Drum
NEW
7.0 x 7.0 x 3.0 mm Shielded Inductors
SD8328 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-126
Low Profile Shielded Drum
NEW
9.5 x 8.3 x 3.0 mm Shielded Inductors
SD8350 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-129
Low Profile Shielded Drum
NEW
9.5 x 8.3 x 4.5 mm Shielded Inductors
UP2.8B Series, UNI-PAC™ 2.8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-132
Unshielded Drum Core
12.9 x 9.4 x 2.8 mm Power Inductors
PM-4

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Table of Contents

UP0.4C Series, UNI-PAC™ 0.4C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-134
Unshielded Drum Core
6.60 x 4.55 x 2.92 mm Power Inductors
UP2C Series, UNI-PAC™ 2C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-135
Unshielded Drum Core
12.9 x 9.4 x 5.2 mm Power Inductors
UNI-PAC™ Series (UP1B, UP2B, UP3B, UP4B) . . . . . . . . . . . . . . . . . Page PM-137
Unshielded Drum Core
4 Available Sizes, Power Inductors
LD Series (LD1, LD2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-143
Unshielded Drum Core
2 Available Sizes, Metalized, Power Inductors
MP2 Series, MICRO-PAC™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-146
Toroid
7.5 x 5.2 x 1.8 mm Low Profile Inductor
MP2A Series, MICRO-PAC PLUS™ . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-147
Toroid
7.5 x 5.2 x 1.8 mm High Power, Low Profile Inductor
ECONO-PAC™/OCTA-PAC®/OCTA-PAC® PLUS Series . . . . . . . . . . . Page PM-149
Toroid
Dual Winding, Inductors/Transformers
VERSA-PAC® (VP1-5, VPH1-5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-157
Transformers
Multi Winding, Configurable, Inductors/Transformers
PoE4W, 7W, 13W Series, Power Over Ethernet Transformer . . . . . . Page PM-165
Transformers
PoE/PD, Configurable, Flyback Transformer
PoE26W, Power Over Ethernet Transformer . . . . . . . . . . . . . . . . . . . Page PM-168
Transformers
NEW
PoE/PD, Configurable, Forward Transformer
PM-5

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Table of Contents

CCFL TRANSFORMERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-170
Transformers
Cold Cathode Fluorescent Lamp Inverter Transformers
STANDARD GEOMETRIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-173
Standard Geometries Custom
Low Cost Magnetic Components
CMS-SERIES (CMS1, CMS2, CMS3) . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-178
Common-Mode
3 Available Sizes, Surface Mount, Common Mode Inductors
CMT-SERIES (CMT1, CMT2, CMT3, CMT4) . . . . . . . . . . . . . . . . . . . . . Page PM-182
Common-Mode
4 Available Sizes, Through-Hole, Common Mode Inductors
CS Series, Current Sense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-186
Toroid
Through Hole, Current Sense Inductors
LCPI Series, LOW COST POWER INDUCTORS . . . . . . . . . . . . . . . . . Page PM-187
Toroid
Toroidal Power Iron Inductors
Application Notes
Recommended Solder Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-191
Using the Versa-Pac as a Flyback Transformer . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-192
Using the Versa-Pac as a Forward Converter Transformer . . . . . . . . . . . . . . . . . . Page PM-195
Power Inductors Improve Reliability in High Temperature Designs . . . . . . . . . . . Page PM-198
Switching Regulator Inductor Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-200
Inductor Selection for SEPIC Designs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-202
PoE Power Magnetics - Options and Trends . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-204
High Current Inductors for DC-DC Converters . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-206

Magnetics Design Specification Form . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page PM-207

PM-6

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Table of Contents

This bulletin is intended to present product design solutions and technical information that will help the end user with design applications. Cooper Bussmann
reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Cooper Bussmann
also reserves the right to change or update, without notice, any technical information contained in this bulletin. Once a product has been selected, it should
be tested by the user in all possible applications.
Life Support Policy: Cooper Bussmann does not authorize the use of any of its products for use in life support devices or systems without the express
written approval of an officer of the Company. Life support systems are devices which support or sustain life, and whose failure to perform, when properly used
in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user.

PM-7

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INDUCTOR SELECTION GUIDE

Inductor Selection Guide
Product Family

High Current
Shielded Drum (DR Style)
Low Profile Shielded Drum (SD Style)

HC3
HC2 LP
HCP1305
HC9
HCF1305
FLAT-PAC (FP1308)
HCP1104
HCPT1309
HC7
HC1
HC7 (HC7-R20)
HC8
HC8LP
FLAT-PAC Single (FP4-S_)
HCP0703
FLAT-PAC 5mm (FP2-V_)
FLAT-PAC Single (FP3-S)
FLAT-PAC Single (FP2-S_)
FLAT-PAC Dual (FP2-D_)
FLAT-PAC Dual (FP2-D_)
CPL (Multi-Phase)
DRQ127
DRQ127
DR127
DRQ125
DR125
DRQ125
DR124
DR1050
DR1040
DRQ74
DRQ74
DR74
DR1030
DRQ73
LDS0705
DRQ73
DR73
SD8350
SD8328
SD7030
SD53
SD6030
SDQ25
SDQ25
SD25
SD14
SD6020
SD52
SD18
SDQ12
SDQ12
SD20
SD12
SD3118
SD3814
SD10
SDH3812
SD3812
SD3114
SD3112
SD3110

Maximum
Maximum
Winding
Current Rating
Inductance Rating Configuration
Inductance Current1 Inductance Current1 (if applicable)
0.50
0.47
0.470
0.200
0.470
0.110
0.200
0.200
0.47
0.22
0.20
0.15
0.15
0.100
0.150
0.050
0.100
0.047
0.188
0.047

78.00
52.90
38.00
46.70
32.00
68.00
32.00
43.10
23.40
40.50
35.80
39.00
29.00
40.00
26.00
70.00
19.00
39.00
16.00
37.00

6.0
6.0
2.200
47.000
4.700
0.440
0.900
3.310
4.7
10.0
0.20
47.0
47.0
0.200
10.000
0.200
15.0
0.120
0.480
0.120

30.00
16.50
20.00
3.65
10.40
32.00
22.00
11.40
9.20
5.30
35.80
2.40
1.70
30.00
3.00
19.00
2.00
18.00
9.00
18.00

1.68
0.47
0.47
0.47
0.47
1.82
0.47
0.80
1.50
1.18
0.33
0.33
1.10
1.22
0.82
0.33
0.33
1.80
2.50
3.30
1.10
2.70
0.47
1.57
0.47
0.58
3.90
1.20
0.47
1.96
0.47
0.47
0.47
1.00
0.47
0.47
0.47
0.47
1.00
1.00
0.50

8.94
17.90
17.90
17.60
17.60
8.80
16.00
9.70
6.50
3.10
6.20
6.26
7.00
3.10
7.68
6.19
6.21
5.50
4.50
3.00
3.25
2.60
3.71
1.86
3.88
3.52
1.95
2.33
3.58
1.39
2.78
3.59
3.19
2.01
2.81
2.59
2.69
2.53
1.60
1.39
1.54

4020.0
1000.0
1000.0
1000.0
1000.0
4032.0
1000.0
1000.0
330.0
4036.0
1000.0
1000.0
150.0
3980.0
470.0
1000.0
1000.0
100.0
100.0
680.0
100.0
680.0
1000.0
4032.0
1000.0
1000.0
100.0
150.0
1000.0
331.0
82.0
1000.0
1000.0
1000.0
680.0
470.0
220.0
220.0
330.0
220.0
220.0

0.307
0.610
0.610
0.570
0.570
0.283
0.440
0.430
0.520
0.135
0.270
0.270
0.680
0.128
0.368
0.250
0.250
0.800
0.800
0.210
0.440
0.160
0.127
0.063
0.126
0.117
0.360
0.280
0.102
0.154
0.309
0.088
0.086
0.083
0.100
0.110
0.160
0.160
0.113
0.117
0.106

Note 1 = Current ratings listed are the lower value of the Isat and Irms ratings
Note 2 = EMI Rating: 1) Closed magnetic path - best EMI shield; 2) Small gap,
or external shield - some EMI fringing; 3) No shield - Highest EMI
Note 3 = Alternate sizes, terminal styles available

Series
Parallel
See Data Sheet
Series
Parallel
Parallel
Series
Series
Parallel
Series
Parallel
Parallel
Series
Series
Parallel
-

Product Size (mm)
L
W
H
30.00
19.20
13.80
13.80
12.50
13.70
11.50
13.20
13.00
13.00
13.00
10.40
10.40
6.80
7.30
7.20
7.25
7.20
7.20
7.20

25.30 17.50
19.20 11.18
12.90 5.00
13.10 7.50
12.50 5.00
12.95 8.00
10.25 4.00
14.00 9.00
13.80 5.50
13.00 10.00
14.25 6.00
10.40 4.00
10.40 3.50
10.20 5.00
7.00 3.00
6.70 5.00
6.50 3.00
6.70 3.00
6.70 3.00
6.70 3.00

12.50
12.50
12.50
12.50
12.50
12.50
12.30
10.50
10.50
7.60
7.60
7.60
10.50
7.60
8.00
7.60
7.60
9.50
9.50
7.00
5.20
6.00
5.20
5.20
5.20
5.20
6.00
5.60
5.20
5.20
5.20
5.20
5.20
3.10
4.00
5.20
4.00
4.00
3.10
3.10
3.10

12.50
12.50
12.50
12.50
12.50
12.50
12.30
10.30
10.30
7.60
7.60
7.60
10.30
7.60
7.20
7.60
7.60
8.30
8.30
7.00
5.20
6.00
5.20
5.20
5.20
5.20
6.00
5.20
5.20
5.20
5.20
5.20
5.20
3.10
4.00
5.20
4.00
4.00
3.10
3.10
3.10

General information needed to select proper inductor:
___I. Inductance and Current requirements
___II. Mounting style (surface mount or thru hole) and
size constraints

8.00
8.00
8.00
6.00
6.00
6.00
4.50
5.00
4.00
4.35
4.35
4.35
3.00
3.55
5.00
3.55
3.55
4.50
3.00
3.00
3.00
3.00
2.50
2.50
2.50
1.40
2.00
2.00
1.80
1.20
1.20
2.00
1.20
1.80
1.40
1.00
1.20
1.20
1.40
1.20
1.00

Core
EMI
Structure Rating2 SMT/THT
UI
UI
EI
EI
EI
UI
EI
EI
EI
UI
EI
EI
EI
UI
EI
UI
EI
UI
UI
UI

2
2
1
2
1
2
1
1
1
2
1
1
1
2
1
2
1
2
2
2

SMT
SMT
SMT
SMT
SMT
SMT
SMT
THT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT

Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum
Shld Drum

2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2

SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT

___III. Frequency of operation (switching frequency)
___IV. Circuit susceptibility to EMI
___V. Consider using two parts in series for lower
profiles, higher current ratings or higher
inductance values

PM-8

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Product Family

Unshielded Drum Core
Toroid
Transformers
Common-Mode

UNI-PAC 4B
UNI-PAC 3B (UP3B)
UNI-PAC 2C (UP2C)
LD2
UNI-PAC 2B (UP2B)
UNI-PAC 2.8B (UP2.8B)
UNI-PAC 1B (UP1B)
LD1
UNI-PAC 0.4C (UP0.4C)
OCTA-PAC Plus 4 (CTX_-4A)
OCTA-PAC Plus 4 (CTX_-4A)
OCTA-PAC 4 (CTX_-4)
OCTA-PAC 4 (CTX_-4)
OCTA-PAC Plus 2 (CTX_-2A)
OCTA-PAC Plus 2 (CTX_-2A)
ECONO-PAC 4P (CTX_-4P)
OCTA-PAC Plus 3 (CTX_-3A)
ECONO-PAC 4P (CTX_-4P)
OCTA-PAC Plus 3 (CTX_-3A)
ECONO-PAC 3P (CTX_-3P)
ECONO-PAC 3P (CTX_-3P)
OCTA-PAC Plus 1 (CTX_-1A)
OCTA-PAC Plus 1 (CTX_-1A)
ECONO-PAC 2P (CTX_-2P)
ECONO-PAC 2P (CTX_-2P)
OCTA-PAC 3 (CTX_-3)
OCTA-PAC 3 (CTX_-3)
OCTA-PAC 2 (CTX_-2)
OCTA-PAC 2 (CTX_-2)
ECONO-PAC 1P (CTX_-1P)
ECONO-PAC 1P (CTX_-1P)
Micro-Pac Plus (MP2A)
OCTA-PAC 1 (CTX_-1)
OCTA-PAC 1 (CTX_-1)
Micro-Pac (MP2)
Large Toroid (LCPI) Vertical
Large Toroid (LCPI) Horizontal
Large Toroid (LCPI) w/ Header Vert.
Large Toroid (LCPI) w/ Header Horiz.
Current Sense
Versa-Pac (VP5/VPH5)
Versa-Pac (VP4/VPH4)
Versa-Pac (VP3/VPH3)
Versa-Pac (VP2/VPH2)
Versa-Pac (VP1/VPH1)
Power Over Ethernet/PD 26W (Forward)
PowerOver Ethernet/PD 13W (Flyback)
Power Over Ethernet/PD 7W (Flyback)
Power Over Ethernet/PD 4W (Flyback)
CCFL 14W
CCFL 6W
CCFL 4W
CCFL 2.5W
Common-Mode SMT (CMS3)
Common-Mode SMT (CMS2)
Common-Mode SMT (CMS1)
Common-Mode Thru-hole (CMT4) Vert
Common-Mode Thru-hole (CMT3) Horz
Common-Mode Thru-hole (CMT2)
Common-Mode Thru-hole (CMT1)

Maximum
Maximum
Winding
Current Rating
Inductance Rating Configuration
1
1
Inductance Current Inductance Current (if applicable)
0.47
0.47
0.47
10.00
0.47
1.00
0.47
1.00
1.00
0.33
1.25
0.47
1.76
1.14
0.33
0.47
0.33
1.95
1.47
0.47
1.85
0.33
1.61
2.18
0.47
1.54
0.47
1.69
0.47
0.47
1.67
0.47
1.60
0.47
0.47
various
various
various
various
various
multiple
multiple
multiple
multiple
multiple
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
78.0
30.0
5.50
530
530
1600
940

Note 1 = Current ratings listed are the lower value of the Isat and Irms ratings
Note 2 = EMI Rating: 1) Closed magnetic path - best EMI shield; 2) Small gap,
or external shield - some EMI fringing; 3) No shield - Highest EMI
Note 3 = Alternate sizes, terminal styles available

19.20
16.00
12.20
3.45
10.60
3.60
6.00
2.60
2.88
12.20
6.09
7.00
3.50
5.47
10.90
7.90
11.40
3.95
5.72
6.20
3.10
10.00
4.98
2.95
5.90
3.00
6.00
3.25
6.50
5.50
2.75
3.52
2.75
5.50
2.02
various
various
various
various
various
multiple
multiple
multiple
multiple
multiple
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
4.75
5.35
7.00
6.50
6.50
5.75
6.05

470.0
330.0
1000.0
470.0
1000.0
150.0
330.0
68.0
100.0
300.0
1211.0
300.0
1192.0
1215.0
300.0
300.0
300.0
1195.0
1185.0
300.0
1193.0
300.0
1203.0
1201.0
300.0
1204.0
300.0
1203.0
300.0
300.0
1199.0
100.0
1210.0
300.0
47.0
various
various
various
various
various
multiple
multiple
multiple
multiple
multiple
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
1600
1600
250
5400
5400
30,000
66,000

0.914
0.750
0.380
0.550
0.300
0.620
0.280
0.460
0.350
0.75
0.37
0.62
0.31
0.29
0.58
0.54
0.54
0.27
0.27
0.50
0.25
0.47
0.23
0.21
0.42
0.20
0.40
0.19
0.38
0.32
0.16
0.39
0.11
0.22
0.31
various
various
various
various
various
multiple
multiple
multiple
multiple
multiple
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
0.75
0.50
0.85
2.00
2.00
1.50
0.74

Parallel
Series
Parallel
Series
Series
Parallel
Parallel
Parallel
Series
Series
Parallel
Series
Parallel
Series
Series
Parallel
Series
Parallel
Series
Parallel
Parallel
Series
Series
Parallel
6 windings
6 windings
6 windings
6 windings
6 windings
-

Product Size (mm)
L
W
H
22.10
19.30
12.90
7.80
13.79
12.90
8.89
4.50
6.60
13.97
13.97
13.97
13.97
11.43
11.43
13.97
13.97
13.97
13.97
13.97
13.97
11.43
11.43
11.43
11.43
13.97
13.97
11.43
11.43
11.43
11.43
7.50
11.43
11.43
7.50
various
various
various
various
17.15
28.50
24.60
22.30
16.80
13.00
28.50
24.60
22.30
22.30
28.503
26.003
26.003
20.603
13.97
11.43
9.40
25.00
25.00
36.50
29.50

General information needed to select proper inductor:
___I. Inductance and Current requirements
___II. Mounting style (surface mount or thru hole) and
size constraints

15.00
13.21
9.40
7.00
10.41
9.40
6.10
4.00
4.45
11.43
11.43
11.43
11.43
8.89
8.89
11.43
11.43
11.43
11.43
11.43
11.43
8.89
8.89
8.89
8.89
11.43
11.43
8.89
8.89
8.89
8.89
5.20
8.89
8.89
5.20
various
various
various
various
9.53
21.00
18.00
17.10
16.30
12.90
21.50
18.00
17.10
17.10
25.403
16.503
16.503
14.353
11.43
8.89
7.20
15.40
25.00
22.00
22.00

7.87
6.80
5.20
5.00
6.00
2.80
5.00
3.20
2.92
6.35
6.35
6.35
6.35
5.97
5.97
6.35
4.83
6.35
4.83
4.83
4.83
4.19
4.19
5.97
5.97
4.83
4.83
5.97
5.97
4.19
4.19
1.80
4.19
4.19
1.80
various
various
various
various
20.32
10.80
10.00
8.40
7.80
6.20
10.80
10.00
8.40
8.40
15.003
7.103
5.503
8.003
6.00
6.00
2.60
25.50
14.00
44.50
36.50

Core
EMI
Structure Rating2 SMT/THT
Drum
Drum
Drum
Drum
Drum
Drum
Drum
Drum
Drum
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
Toroid
E
E
E
E
E
E
E
E
E
E
E
E
E
Toroid
Toroid
Toroid
Toroid
Toroid
E
E

3
3
3
3
3
3
3
3
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
1
1
1
1
1
2
2

SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
THT
THT
THT
THT
THT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
THT
SMT
SMT
SMT
SMT
SMT
SMT
THT
THT
THT
THT

INDUCTOR SELECTION GUIDE

Inductor Selection Guide

___III. Frequency of operation (switching frequency)
___IV. Circuit susceptibility to EMI
___V. Consider using two parts in series for lower
profiles, higher current ratings or higher
inductance values

PM-9

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

HIGH CURRENT (FP2) FLAT-PAC™

FLAT-PAC™
Low Profile Inductors
(Surface Mount)
Description
RoHS
2002/95/EC
• 125°C maximum total temperature operation
• Surface mount inductors designed for higher
speed switch mode applications requiring
lower inductance and high current
• Dual conductors allow for low inductance and high current or high inductance and lower current
• Inductance range from .047uH to 0.480uH
• Current range up to 42 Amps
• Meets UL 94V-0 flammability standard
• Ferrite core material
Applications
• Next generation microprocessors
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating ambient temperature range: -40°C to +125°C
(range is application specific).
• Solder reflow temperature: +260°C max. for 10 seconds
max.

Part
Number
Single Conductor
FP2-S047-R
FP2-S068-R
FP2-S082-R
FP2-S100-R
FP2-S120-R
FP2-S200-R
FP2-V050-R
FP2-V100-R
FP2-V120-R
FP2-V150-R
Double Conductor
FP2-D047-R
FP2-D068-R
FP2-D082-R
FP2-D100-R
FP2-D120-R
Part
Number
Double Conductor
FP2-D047-R
FP2-D068-R
FP2-D082-R
FP2-D100-R
FP2-D120-R

Inductance
μH
(rated)

OCL(1)
μH±
15%

0.047
0.068
0.082
0.100
0.120
0.200
0.050
0.100
0.120
0.150

0.047
0.068
0.082
0.100
0.120
0.200
0.050
0.100
0.120
0.150

0.047
0.068
0.082
0.100
0.120

0.047
0.068
0.082
0.100
0.120

Inductance
μH ref.
(rated)

OCL(1)
μH
ref.

0.188
0.272
0.328
0.400
0.480

0.188
0.272
0.328
0.400
0.480

Packaging
• Supplied in tape and reel packaging, 1700 (FP2-S and
FP2-D) and 950 (FP2-S200 and FP2-VXXX) per reel

Parallel Mode
I RMS(2)
I SAT(3)
Amps
Amps

39.0
39.0
39.0
39.0
39.0
37.0
37.0
37.0
37.0
37.0

42.0
32.0
26.0
22.0
18.0
19.0
70.0
40.0
33.0
25.5

37.0
42.0
37.0
32.0
37.0
26.0
37.0
22.0
37.0
18.0
Series Mode
I RMS(2)
I SAT(3)
Amps
Amps

16.0
16.0
16.0
16.0
16.0

Notes: (1) Open Circuit Inductance Test Parameters: 1MHz, .100Vrms, 0.0Adc.
(2) RMS current for an approximate ΔT of 40°C without core loss. It is recommended that the temperature of the part not exceed 125°C.
(3) Peak current for approximately 30% rolloff at 20°C.

21.0
16.0
13.0
11.0
9.0

DCR(4)
Ω
nom.

Height

Volt-μ
Sec (VμS)
ref.(5)

0.00024
0.00024
0.00024
0.00024
0.00024
0.00028
0.00028
0.00028
0.00028
0.00028

3.00
3.00
3.00
3.00
3.00
5.00
5.00
5.00
5.00
5.00

0.75
0.75
0.75
0.75
0.75
0.99
0.99
0.99
0.99
0.99

0.00026
0.00026
0.00026
0.00026
0.00026

3.00
3.00
3.00
3.00
3.00

0.75
0.75
0.75
0.75
0.75

DCR(4)
Ω
ref.

Height

Volt-μ(5)
Sec (VμS)
ref.

0.0013
0.0013
0.0013
0.0013
0.0013

3.00
3.00
3.00
3.00
3.00

1.50
1.50
1.50
1.50
1.50

(4) DCR limits 20°C.
(5) Applied Volt-Time product (V-μS) across the inductor. This value represents the applied V-μS at 500KHz necessary to generate a core loss
equal to 10% of the total losses for 40°C temperature rise.

PM-10

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

FLAT-PAC™
Low Profile Inductors
(Surface Mount)
Mechanical Diagrams
Single Conductor
TOP VIEW

PCB PAD LAYOUT

SIDE VIEW

1

FRONT VIEW

(S or V)XXX
yww

SCHEMATIC

1

1.0 min.
(2x)

1

Height
mm Max

7.20
Max

7.50

1.30 ref.
(2x)

2

2.50 (2x)

2

3.0 ref.
6.50
(4x)

6.70
Max

Dual Conductor
PCB PAD LAYOUT
TOP VIEW
1

SIDE VIEW

4

0.50 (typ)

0.50

SCHEMATIC

FRONT VIEW
1

DXXX
yww

4

1

(4x)
3.00 mm
Max

7.20
Max

7.50

1.50

2

3 2.50 (2x)

1.25 (2x)
ref.

3

Winding 1

7.50

4
Winding 2

4.50
(2x)

1.30 ref.
(2x)

1.00 ref.
2

1

4

HIGH CURRENT (FP2) FLAT-PAC™

2

6.70
Max

3.00
(4x)

2

3 2.50 (2x)

2

3

3.00
(4x)

Series Mode

2 Winding Mode
(3) For parallel mode operation, connect terminals 1 to 4 and 2 to 3 on
PCB (use Single Conductor PCB Layout) For series mode operation,
connect terminals 2 to 4 on PCB (Dual Conductor Model).

Notes: (1) Marking SXXX = S: Single Conductor Style, DXXX = D: Dual
Conductor Style, XXX - last three digits of part number. Date Code:
yww = y: Last Digit of year, ww: week of year.
(2) All Dimensions are in millimeters unless otherwise specified.

Packaging Information
1.5 Dia
min.

1.5 Dia.
+0.1/-0.0

4.0
2.0

1.75

A

1

7.5
16.0
+/-0.3

Bo

ACTUAL SIZE
FLAT-PAC’S

2

Ao=6.6mm
Bo=7.1mm
Ko=3.2mm
Ko=5.2mm
(FP2-S200
& FP2V)

Ko

A

Ao

Direction of Feed
12.0

➞

PM-11

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FLAT-PAC™
Low Profile Inductors
(Surface Mount)

HIGH CURRENT (FP2) FLAT-PAC™

Inductance
Characteristics

Core Loss
IRMS DERATING WITH CORE LOSS
20
40
50
60

z

z

10
0K
H

20
0K
H

30
0K
H

z

50
0K
Hz

80

z

70

1M
H

% of Losses from Irms (maximum)

0

90
92
94
95
96
97
98

99
10

20

30

40

50

60

80

100

200

300

400 500 600

800 1000

% of Applied Volt-μ-Seconds

PM-12

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FLAT-PAC™ 3
Low Profile Inductors

Part
Number
FP3-R10-R
FP3-R20-R
FP3-R47-R
FP3-R68-R
FP3-1R0-R
FP3-1R5-R
FP3-2R0-R
FP3-3R3-R
FP3-4R7-R
FP3-8R2-R
FP3-100-R
FP3-150-R

Rated
Inductance
μH
0.10
0.20
0.47
0.68
1.00
1.50
2.00
3.30
4.70
8.20
10.0
15.0

OCL (1)
μH ± 15%

Irms (2)
Amperes

0.10
0.22
0.44
0.72
1.10
1.50
2.00
3.20
4.70
8.5
10.9
14.9

19.0
15.3
10.9
9.72
6.26
5.78
5.40
3.63
3.23
2.91
2.30
2.22

Isat (3)
Amperes
Approx. 10%
27
16
11.6
9.0
7.4
6.2
5.4
4.3
3.5
2.6
2.3
2.0

1) OCL (Open Circuit Inductance) Test parameters: 100kHz, 0.1Vrms, 0.0Adc
2) DC current for an approximate ΔT of 40°C without core loss. Derating is necessary for AC currents. PCB layout, trace thickness and width, air-flow, and proximity of other heat generating components will affect the temperature rise.
It is recommended that the temperature of the part not exceed 155°C under
worst case operating conditions verified in the end application.

Mechanical Diagrams

TOP VIEW
2.8±0.25

Isat (4)
Amperes
Approx. 15%
34.7
20.8
14.9
11.6
9.5
8.0
6.9
5.5
4.2
3.4
3.0
2.5

DCR
mOhms @ 20°C
(Max.)
1.21
1.88
3.67
4.63
11.2
13.1
15.0
30.0
40.0
74.0
101
127

K-factor (5)
803
482
344
268
219
185
161
127
105
78
69
59

3) Isat Amperes Peak for approximately 10% rolloff @ 20°C
4) Isat Amperes Peak for approximately 15% rolloff @ 20°C
5) K-factor: Used to determine B p-p for core loss (see graph). B p-p =K*L*ΔI
B p-p:(Gauss), K: (K factor from table), L: (Inductance in uH), ΔI (Peak to peak
ripple current in Amps).

RECOMMENDED PCB PAD LAYOUT

SIDE VIEW

SCHEMATIC

1

(2x)

FRONT VIEW

1.0 min.
(2x)

FP3
XXX
yww

3.00 Max

Packaging
• Units supplied in tape and reel packaging.
Reel quantity = 1,700 parts per reel.

HIGH CURRENT (FP3) FLAT-PAC™ 3

Description
RoHS
2002/95/EC
• 155°C maximum total temperature operation
• Low profile high current inductors
• Inductance range 0.1uh to 15uh
• Design utilizes high temperature powder iron material with a
non-organic binder to eliminate thermal aging
• Current rating up to 34.7Adc (Higher peak currents may be
attained with a greater rolloff, see rolloff curve)
• Frequency range up to 2MHz
Applications
• Computers and portable power devices
• Energy storage applications
• DC-DC converters
• Input - Output filer application
Environmental Data
• Storage temperature range: -40°C to +155°C
• Operating ambient temperature range: -40°C to +155°C
(range is application specific).
• Solder reflow temperature: +260°C max. for 10 seconds max.

1

7.25
Max

7.50

2.50 (2x)

2

2.8±0.25
(2x)

2
6.70
Max

Packaging Information

4.50 (2x)

1.5 Dia
min.
0.30
+/-0.05

4.0
2.0

1.5 Dia
+0.1/-0.0
1.75

A

0.3 Rad
max.

1

7.5

Bo

16.0
+/-0.3

2

Dimensions in Millimeters

Ko
SECTION A-A

A

Ao
12.0

0.5 Rad
typ.

Ao= 6.6mm
Bo= 7.1mm
Ko= 3.2mm

xxx = Inductance value
yww = Date code

Direction of Feed

PM-13

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FLAT-PAC™ 3
Low Profile Inductors
Inductance Characteristics

OCL vs. Isat

100
90

% of OCL

80
70
60
50
40
30
10
0
0

20

40

60

80

100

120

140

160

180

200

% of Isat

Core Loss

FP3 AC Loss at Frequency, kHz

Frequency (kHz)

CoreLoss vs. Flux Density

CoreLoss (W)

1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
250

200
300
400
500
600
700
800
900
1000

500

750

1000 1250 1500 1750 2000 2250
B p-p (Gauss)

Temperature Rise vs. Watt Loss
Temperature Rise (C)

HIGH CURRENT (FP3) FLAT-PAC™ 3

20

140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
0.12

0.24

0.36

0.48

0.61

0.73

0.85

0.97

1.09

1.21

1.33

1.45

1.57

Total Loss (W)

PM-14

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FLAT-PAC™ 4
5mm Height Inductors
(Surface Mount)

Part
Number
FP4-100-R
FP4-120-R
FP4-150-R
FP4-200-R

Rated
Inductance
μH
0.100
0.120
0.150
0.200

OCL (2)
± 15%
μH
0.100
0.120
0.150
0.200

Isat (5)
Amperes
Peak
64
54
42
30

Irms (4)
Amperes

Rated
Inductance
μH
0.090

FP4-090SK-R

OCL (2)
± 15%
μH
0.090

DCR
Ω @ 20°C
(Nom.)
0.00048
0.00048
0.00048
0.00048

40
40
40
40

DCR
Ω @ 20°C
(Max.)
0.00065
0.00065
0.00065
0.00065

Volts-μSec (3)
(VuSec)
(ref.)
1.33
1.33
1.33
1.33

4) DC current for an approximate ΔT of 40°C without core loss. Derating is necessary for AC currents. PCB layout, trace thickness and width, airflow, and proximity of other heat generating components will affect the temperature rise. It is recommended that the temperature of the part not exceed 155°C under worst case
operating conditions verified in the end application.
5) Peak Current for approximately 30% rolloff @ 20°C

1) Units supplied in Tape & Reel packaging; 900 parts on 13" diameter reel.
2) OCL (Open Circuit Inductance) Test parameters: 1MHz, .100Vrms,
0.0Adc & ISAT @20°C
3) Applied Volt-Time product (V-μS) across the inductor. This value represents the
applied V-μS at 500kHz necessary to generate a core loss equal to 10% of the
total losses for 40°C temperature rise.

Part
Number

Packaging
• Supplied in tape and reel packaging,
900 parts per reel

HIGH CURRENT (FP4) FLAT-PAC™ 4

Description
RoHS
2002/95/EC
• 155°C maximum total temperature operation
• Surface mount inductors designed for high speed,
high current switch mode applications requiring
lower inductance
• Gapped ferrite cores for maximum efficiency
• Inductance values from 0.100 uH to 0.200 uH
• Current range up to 64 Amps
• Meets UL 94V-0 flammability standard
• Ferrite core material
Applications
• Voltage regulator modules (VRMs) for servers,
microprocessors
• High frequency, high current switching power supplies
Environmental Data
• Storage temperature range: -40°C to +155°C
• Operating ambient temperature range: -40°C to +155°C
(range is application specific).
• Solder reflow temperature: +260°C max. for 10 seconds
max.

Isat (5)
Amperes
Peak
72

Irms (4)
Amperes

DCR
@ 25°C

33

0.423-0.517

Volts-μSec (3)
(Vus)
(ref.)
1.33

4) DC current for an approximate ΔT of 40°C without core loss. Derating is necessary for AC currents. PCB layout, trace thickness and width, airflow, and proximity of other heat generating components will affect the temperature rise. It is recommended that the temperature of the part not exceed 155°C under worst case
operating conditions verified in the end application.
5) Peak Current for approximately 20% rolloff @ 25°C

1) Units supplied in Tape & Reel packaging; 900 parts on 13" diameter reel.
2) OCL (Open Circuit Inductance) Test parameters: 100kHz, 1.0Vrms,
0.0Adc & ISAT @25°C
3) Applied Volt-Time product (V-μS) across the inductor. This value represents the
applied V-μS at 500kHz necessary to generate a core loss equal to 10% of the
total losses for 40°C temperature rise.

Mechanical Diagrams
TOP VIEW

SIDE VIEW

PCB PAD LAYOUT

1

Part Number

yyww R

FP4-XXX

FRONT VIEW

10.20
Max

1.0 min.
(2x)

5.00 Max
10.50

1.30 ref.
(2x)

2.50 (2x)

FP4-100-R
FP4-120-R
FP4-150-R
FP4-200-R
FP4-090SK-R

Dimension
“A” (mm) ref.
3.0
3.0
3.0
3.0
2.8

SCHEMATIC
1

2

A
2
6.80
Max

4.50 (2x)

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FLAT-PAC™ 4
5mm Height Inductors
(Surface Mount)
Packaging Information

12.0

Ø1.50 Min.

2.00 ±0.1

0.35 ±0.05

Ø1.50 +0.1/-0.0

A

1.75±0.10

4.00
R0.30 Max.

FP4-XXX

A

Ko

Ao

24.00
±0.3

R0.50 Typ.

User direction of feed

SECTION A-A

xxx = Inductance value
yww = Date code R = Revision level

Dimensions in Millimeters

Inductance Characteristics

OCL vs. Isat

100.0

75.0

% of OCL

FP4-100
FP4-150
FP4-200
50.0

FP4-120

25.0

0.0
0

10

20

30

40

50

Isat (Adc)

Inductance Rolloff vs Isat

100

75

% of OCL

HIGH CURRENT (FP4) FLAT-PAC™ 4

Ao=7.20mm
Bo=10.60mm
Ko=5.40mm

yyww R

11.50±0.1
Bo

FP4-090SK
50

25

0
0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

Isat (Adc)

PM-16

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FLAT-PAC™ 4
5mm Height Inductors
(Surface Mount)
Core Loss

Irms Derating with Core Loss
0
20
40
50

70

Hz
0k

kH
z

10

kH
z
500

300

Hz
1M

1.5

MH
z

80

90

HIGH CURRENT (FP4) FLAT-PAC™ 4

% of Losses from Irms (maximum)

60

92
94
95
96
97

98

99
10

20

30

40

50

60

80

100

200

300

400

500 600

800

1000

% of Applied Volt-μ-Second

PM-17

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HIGH CURRENT (FP1308) FLAT-PAC™ 1308

FP1308 Series
FLAT-PAC™
High Current Power Inductors
Description
RoHS
2002/95/EC
• 125°C maximum total temperature operation
• 12.9mm x 13.7mm x 8.0mm surface mount package
• High current handling capability, compact footprint
• Ferrite core material
• Inductance range from 110nH to 440nH
• Current range from 120 Amps to 32 Amps
• Frequency range up to 2MHz
Applications
• Voltage Regulator Modules (VRM) for servers and
microprocessors
• Multi-Phase Buck inductors
• High frequency, high current switching power supplies
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating temperature range: -40°C to +125°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
maximum
Part Number

FP1308-R11-R
FP1308-R21-R
FP1308-R26-R
FP1308-R32-R
FP1308-R44-R

Rated
Inductance
(nH)
110
210
260
320
440

Packaging
• Supplied in tape and reel packaging, 450 per reel

OCL (1)
nH±10%

Irms(2)
Amperes

Isat (3)
Amperes

110
210
260
320
440

68
68
68
68
68

120
72
60
45
32

(1) Open Circuit Inductance Test Parameters: 100kHz, 1.0V, 0.0Adc.
(2) Irms: DC current for an approximate ΔT of 40°C without core loss. Derating is
necessary for AC currents. PCB layout, trace thickness and width, air-flow, and
proximity of other heat generating components will affect the temperature rise. It
is recommended that the temperature of the part not exceed 125°C under worst
case operating conditions verified in the end application.
(3) Isat Amperes peak for 20% maximum rolloff (@25°C)

DCR
mΩ @25°C
(Typical)
0.20
0.20
0.20
0.20
0.20

DCR
mΩ @25°C
(Maximum)
0.24
0.24
0.24
0.24
0.24

K-factor
(4)
21.330
21.333
21.335
21.340
21.366

(4) K-factor: Used to determine B p-p for core loss (see graph).
B p-p = K*L*ΔI, B p-p(mT), K: (K factor from table), L: (Inductance in μH),
ΔI (Peak to peak ripple current in Amps).
(5) Part Number Definition: FP1308-xxx-R
FP1308 = Product code and size; -xxx = Inductance value in uH;
R = decimal point; If no R is present, third character = # of zeros.
-R suffix = RoHS compliant

Mechanical Diagrams

1

7.62

2.54 (2plcs)

12.95 max.

SCHEMATIC

RECOMMENDED PCB LAYOUT

FRONT VIEW

BOTTOM VIEW

TOP VIEW

1

3.18
5.4
13.70 max.

FP1308-XXX
wwllyy R

7.2

8.0

2

LEFT VIEW

2
8.0 max.

Dimensions are in millimeters.
wwlly = Date Code. R = Revision level.

PM-18

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FP1308 Series
FLAT-PAC™
High Current Power Inductors
Packaging Information
1.5 dia
+0.1/-0.0

4.0

A

1.5 dia
min

2.0

1.75

11.5
24.0
+/-0.3

B0
FP1308-XXX
wwllyy R

A

A0
A0= 13.20 mm
B0= 13.90 mm
K0= 8.20 mm

User direction of feed
Parts packaged on 13" Diameter reel,
450 parts per reel.

Core Loss
Core loss vs Bp-p

500kHz

HIGH CURRENT (FP1308) FLAT-PAC™ 1308

K0

SECTION A-A

100kHz

10

Core Loss (W)

1

300kHz

1MHz

50kHz

0.1

0.01

0.001

0.0001
1

10

Bp-p(mT)

100

1000

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FP1308 Series
FLAT-PAC™
High Current Power Inductors

Temperature Rise(°C)

100
80
60
40
20
0
0

0.5

1

Inductance Characteristics

1.5
2
Total Loss(W)

2.5

3

OCL vs Isat

120%

100%

80%

% of OCL

HIGH CURRENT (FP1308) FLAT-PAC™ 1308

Temperature Rise vs. Loss

60%

40%

+25 Deg.C

20%

-40 Deg.C
+125 Deg.C
0%
0%

20%

40%

60%

80%

100%

120%

140%

160%

% of Isat

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HCP0703 Series
High Current Pressed Power Inductors

Part Number

HCP0703-R15-R
HCP0703-R22-R
HCP0703-R47-R
HCP0703-R68-R
HCP0703-R82-R
HCP0703-1R0-R
HCP0703-1R5-R
HCP0703-2R2-R
HCP0703-3R3-R
HCP0703-4R7-R
HCP0703-6R8-R
HCP0703-8R2-R
HCP0703-100-R

Rated
Inductance
(μH)
0.15
0.22
0.47
0.68
0.82
1.0
1.5
2.2
3.3
4.7
6.8
8.2
10.0

Packaging
• Supplied in tape and reel packaging,
1500 parts per reel

OCL (1)
μH ± 20%

Irms (2)
Amperes

Isat (3)
Amperes

0.15
0.22
0.47
0.68
0.82
1.0
1.5
2.2
3.3
4.7
6.8
8.2
10.0

26
23
17
15
13
11
9
8
6
5.5
4.5
4
3

52
40
26
25
24
22
18
14
13.5
10
8
7.5
7.0

(1) Open Circuit Inductance Test Parameters: 100kHz, 0.25V, 0.0Adc.
(2) Irms: DC current for an approximate ΔT of 40°C without core loss. Derating is
necessary for AC currents. PCB layout, trace thickness and width, air-flow, and
proximity of other heat generating components will affect the temperature rise. It
is recommended that the temperature of the part not exceed 125°C under worst
case operating conditions verified in the end application.

HIGH CURRENT (HCP0703)

Description
RoHS
2002/95/EC
• 125°C maximum total temperature operation
• 7.0mm x 7.3mm x 3.0mm surface mount package
• Pressed powder iron core material
• Enhanced core coating eliminates rusting and
provides high insulation impedance
• Inductance range from 0.15μH to 10.0μH
• Current range from 52.0 Amps to 3.0 Amps
• Frequency range up to 1MHz
Applications
• Notebook power
• VRM, multi-phase buck regulator
• DC-DC converters
• PC workstations/Servers/Desktop
• Routers
Environmental Data
• Storage temperature range: -55°C to +125°C
• Operating temperature range: -55°C to +125°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
maximum

DCR
mΩ@20°C
(Typical)
1.9
2.5
4.0
5.0
6.8
9.0
14
18
28
37
54
64
102

DCR
mΩ@20°C
(Maximum)
2.5
2.8
4.2
5.5
8.0
10
15
20
30
40
60
68
105

K-factor
(4)
1100
922
559
435
360
356
307
206
186
171
140
132
112

(3) Isat Amperes peak for approximately 20% rolloff (@25°C)
(4) K-factor: Used to determine B p-p for core loss (see graph).
B p-p = K*L*ΔI, B p-p: (Gauss), K: (K factor from table), L: (Inductance in uH),
ΔI (Peak to peak ripple current in Amps).

Mechanical Diagrams
TOP VIEW

BOTTOM VIEW

7.0 Max.

FRONT VIEW

2.4+/-0.3

3.40
3.0 Max.

HCP0703
XXX
wwllyy R

1.68

1.27+/-0.3
7.3 Max.

4.5

SCHEMATIC
1

LEFT VIEW

4.00

2

Dimensions are in millimeters.
wwllyy = Date Code. R = Revision Level.

PM-21

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HCP0703 Series
High Current Pressed Power Inductors
Packaging Information

1.5 dia
min

2.0

1.5 dia
+0.1/-0.0

A

4.0

7.5
16.0

HCP0703
XXX
wwllyy R

Bo

Ko

Ao

User direction of feed

Bo=7.7 mm
Ko=3.2 mm

Core Loss

Core Loss vs B p-p

700kHz

10000

500kHz
1000

Core Loss (mW)

HIGH CURRENT (HCP0703)

Ao=7.3 mm

SECTION A-A

A

12.0

1000kHz
300kHz
100kHz

100

10

1
10

100

1000

10000

B p-p (Guass)

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HCP0703 Series
High Current Pressed Power Inductors
Performance Graphs

80

0.12

60

0.08

40

0.04

20

0.00
30

40

40
0.07

20
0
0

50

10

40
0.15

20

0.00

Inductance(uH)

60
0.30

Temp.-rise (°C)

Inductance(uH)

80

15

20

25

80

0.60

60
0.40
40
0.20

20
0
0

30

5

HCP0703-R82-R

60

0.40

40

0.20

20

0.00
15

20

100
80
60

0.60

40
0.30

20
0
5

10

15

20

25

DC Bias(Amps)

HCP0703-1R5-R

100

1.50

80

1.20

60

0.90
40

0.60

20

0.30
0.00

Temp.-rise(°C)

Inductance(uH)

25

0.90

0

25

DC Bias(Amps)

1.80

20

0.00

0
10

Inductance(uH)

0.60

Temp.-rise(°C)

Inductance(uH)

80

5

15

HCP0703-1R0-R

1.20

100

0.80

0

10

DC Bias(AMPS)

DC Bias(Amps)

1.00

100

0.00

0
10

HCP0703-R68-R

0.80

100

0.45

5

40

HIGH CURRENT (HCP0703)

HCP0703-R47-R

0

30

DC Bias(Amps)

DC Bias(Amps)

0.60

20

Temp.-rise(°C)

20

60
0.14

Temp.-rise(°C)

10

80

0.21

0.00

0
0

100

Temp.-rise(°C)

0.16

HCP0703-R22-R
HCP0703-R22-R

0.28

Inductance(uH)

100

Temp.-rise(°C)

Inductance(uH)

HCP0703-R15-R
0.20

0
0

2

4

6

8

10

12

14

16

18

DC Bias(Amps)

PM-23

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HCP0703 Series
High Current Pressed Power Inductors
Performance Graphs

2.1

60
1.4
40
0.7

20

0.0

Inductance(uH)

80

0
4

6

8

10

12

3.2

80

2.4

60

1.6

40

0.8

20

0

14

0
0

2

4

6

3.6

60

2.4

40

1.2

20

0.0

0
4

6

8

Inductance(uH)

80

2

80
60
40

2.1

20

0.0

0
0

1

2

3

100

60
40

4.0

20

2.0

0

0.0
4

5

DC Bias(Amps)

6

7

8

Inductance(uH)

6.0

3

5

6

7

8

HCP0703-100-R

12.0

Temp.-rise(°C)

80

2

4

DC Bias(Amps)

8.0

1

100

4.2

10

HCP0703-8R2-R

0

14

6.3

DC Bias(AMPS)

10.0

12

HCP0703-6R8-R

8.4

Temp.-rise(°C)

Inductance(uH)

100

4.8

0

10

DC Bias(Amps)

HCP0703-4R7-R

6.0

Inductance(uH)

HIGH CURRENT (HCP0703)

DC Bias(Amps)

8

Temp.-rise(°C)

2

100

100
80

9.0

60
6.0
40
3.0

20

0.0

Temp.-rise(°C)

0

HCP0703-3R3-R

4

Temp.-rise(°C)

Inductance(uH)

100

Temp.-rise (°C)

HCP0703-2R2-R

2.8

0
0

1

2

3

4

5

6

7

DC Bias(Amps)

PM-24

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HCP1104 Series
High Current Pressed Power Inductors

Part Number

HCP1104-R20-R
HCP1104-R36-R
HCP1104-R45-R
HCP1104-R56-R
HCP1104-R90-R

Rated
Inductance
(μH)
0.20
0.36
0.45
0.56
0.90

HIGH CURRENT (HCP1104)

Description
RoHS
2002/95/EC
• 125°C maximum total temperature operation
• Low profile surface mount inductors
• 10mm x 11.5mm x 4.0mm package
• Pressed powder iron core material
• Enhanced core coating eliminates rusting and
provides high insulation impedance
• Inductance range from 0.2μH to 0.9μH
• Current range from 42.0 Amps to 22 Amps
• Frequency range up to 1MHz
Applications
• Notebook power
• VRM, multi-phase buck regulator
• DC-DC converters
• PC workstations/Servers
• Routers
Environmental Data
• Storage temperature range: -55°C to +125°C
• Operating temperature range: -55°C to +125°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
maximum

Packaging
• Supplied in tape and reel packaging,
950 parts per reel

OCL (1)
μH ± 20%

Irms (2)
Amperes

Isat (3)
Amperes

0.20
0.36
0.45
0.56
0.90

32
30
30
25
22

42
40
35
32
25

DCR
mΩ@20°C
(Typical)
0.7
1.0
1.25
1.60
2.30

DCR
mΩ@20°C
(Maximum)
0.9
1.2
1.4
1.8
2.5

K-factor
(4)
505
289
334
287
168

(3) Isat Amperes peak for approximately 20% rolloff (@20°C)
(4) K-factor: Used to determine B p-p for core loss (see graph).
B p-p = K*L*ΔI, B-p-p: (Gauss), K: (K factor from table), L: (Inductance in uH),
ΔI (Peak to peak ripple current in Amps).

(1) Open Circuit Inductance Test Parameters: 100kHz, 0.25V, 0.0Adc.
(2) Irms: DC current for an approximate ΔT of 40°C without core loss. Derating is
necessary for AC currents. PCB layout, trace thickness and width, air-flow, and
proximity of other heat generating components will affect the temperature rise. It
is recommended that the temperature of the part not exceed 125°C under worst
case operating conditions verified in the end application.

Mechanical Diagrams
TOP VIEW

LEFT VI EW

FRONT VI EW

BOTTOM VIEW

RECOM M ENDED PCB LAYOUT

SCHEM ATIC

10.0+/- 0.254
2.3 +/- 0.3

1

HCP1104-X X X

11.5 max.

1
4.0 max.

6.2

wwllyy R

12.0

9.2

2

3.5 +/- 0.5

2
4.5

Dimensions are in millimeters.
wwlly = Date Code. R = Revision Level.

PM-25

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HCP1104 Series
High Current Pressed Power Inductors
Packaging Information

1.5 dia
min

1.5 dia
+0.1/-0.0
2.0

A

4.0

0.35
+/-0.05

1.75

0.3Rad
max.
11.5
24.0
Bo

HCP1104-XXX
wwll yy R

Ao=10.3 mm
Bo=11.5 mm
Ko=4.3 mm

Ko

16.0

Ao

A
Par ts packaged on a 13" Diameter reel.
950parts per reel.

0.3 rad
typ

User d irection of feed

Core Loss

Core Loss vs Bp-p
700kHz

300kHz

10000

Core Loss (mW)

HIGH CURRENT (HCP1104)

SECTION A-A

1000kHz

500kHz

1000

100
100kHz

10

1
10

100

1000

10000

Bp-p (Gauss)

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HCP1104 Series
High Current Pressed Power Inductors
Performance Graphs

0.16

60

0.12
40

0.08
0.04

20

0.00

0
10

20

30

80

0.30

60
0.20
40
0.10

20

0.00

40

0
0

10

20

DC Bias(Amps)

0.40

80

0.60

0.30

60

0.20

40

0.10

20

0.00

0
30

40

80

0.50
0.40

60

0.30

40

0.20
20

0.10

0
0

10

20

30

40

DC Bias(Amps)

HCP1104-R90-R

100

1.00

80

0.80

60

0.60
40

0.40

20

0.20
0.00

Temp.-rise(°C)

Inductance(uH)

100

0.00

50

DC Bias(Amps)

1.20

Inductance(uH)

0.70

Temp.-rise(°C)

Inductance(uH)

HCP1104-R56-R

100

20

50

HIGH CURRENT (HCP1104)

HCP1104-R45-R

10

40

DC Bias(Amps)

0.50

0

30

Temp.-rise(°C)

0

100

Temp.-rise(°C)

80

HCP1104-R36-R

0.40

Inductance(uH)

100

0.20

Temp.-rise(°C)

Inductance(uH)

HCP1104-R20-R
0.24

0
0

10

20

30

DC Bias(Amps)

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HIGH CURRENT (HCP1305)

HCP1305 Series
High Current Pressed Power Inductors
Description
RoHS
2002/95/EC
• 125°C maximum temperature operation
• 12.9mm x 13.8mm x 5.0mm surface
mount package
• Pressed powder iron core material
• Enhanced core coating eliminates rusting and
provides high insulation impedance
• Inductance range from 0.47μH to 2.2μH
• Current range from 65.0 Amps to 20 Amps
• Frequency range up to 1MHz
Applications
• Notebook power
• VRM, multi-phase buck regulator
• DC-DC converters
• PC workstations/Servers/Desktop
• Routers
Environmental Data
• Storage temperature range: -55°C to +125°C
• Operating temperature range: -55°C to +125°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
maximum
Part Number

HCP1305-R47-R
HCP1305-R56-R
HCP1305-R68-R
HCP1305-R82-R
HCP1305-1R0-R
HCP1305-1R5-R
HCP1305-2R2-R

Rated
Inductance
(μH)
0.47
0.56
0.68
0.82
1.0
1.5
2.2

Packaging
• Supplied in tape and reel packaging,
400 parts per reel

OCL (1)
μH ± 20%

Irms (2)
Amperes

Isat (3)
Amperes

0.47
0.56
0.68
0.82
1.0
1.5
2.2

38
36
34
31
29
23
20

65
55
53
52
50
48
32

DCR
mΩ@20°C
(Typical)
1.1
1.3
1.5
2.0
2.1
3.4
4.6

DCR
mΩ@20°C
(Maximum)
1.3
1.5
1.7
2.3
2.5
4.1
5.5

K-factor
(4)
181
130
172
167
134
105
77

(3) Isat Amperes peak for approximately 20% rolloff (@20°C)
(4) K-factor: Used to determine B p-p for core loss (see graph).
B p-p = K*L*ΔI, B p-p: (Gauss), K: (K factor from table), L: (Inductance in uH),
ΔI (Peak to peak ripple current in Amps).

(1) Open Circuit Inductance Test Parameters: 100kHz, 0.25V, 0.0Adc.
(2) Irms: DC current for an approximate ΔT of 40°C without core loss. Derating is
necessary for AC currents. PCB layout, trace thickness and width, air-flow, and
proximity of other heat generating components will affect the temperature rise. It
is recommended that the temperature of the part not exceed 125°C under worst
case operating conditions verified in the end application.

Mechanical Diagrams
12.9 max.

2.54±0.3

13.8 max.

8.5

11.06

14.20

J

5.0 max.
D

Dimensions are in millimeters.
wwlly = Date Code. R = Revision Level.

PM-28

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HCP1305 Series
High Current Pressed Power Inductors
Packaging Information

1.5 dia
min

1.5 dia
+0.1/-0.0
2.0
4.0

1.75

11.5
24.0
Bo

Ko

16.0

Ao

HIGH CURRENT (HCP1305)

0.3 rad
typ

User direction of feed

Core Loss

Core Loss vs Bp-p
700kHz
10000

500kHz
1000kHz

Core Loss (mW)

1000

300kHz
100kHz

100

10

1
10

100

1000

10000

Bp-p(Gauss)

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HCP1305 Series
High Current Pressed Power Inductors
Performance Graphs
HCP1305-R47-R

0.60

HCP1305-R56-R

100

100

0.40

60

0.30
40

0.20
0.10

20

0.00

0
20

30

40

50

40

0.15

20

0

0
0

60

10

HCP1305-R68-R

60
0.40
40
0.20

20

0.00

Inductance(uH)

Temp.-rise(ºC)

Inductance(uH)

HIGH CURRENT (HCP1305)

0.60

0
10

20

30

40

80
60

0.40

40

0.20

20

0.00

0
0

10

60

0.60

40

0.40
0.20

20

0.00

0
30

40

40

50

100

1.50

80

1.20

60

0.90
40

0.60

20

0.30
0.00

0
0

50

10

20

30

40

50

DC Bias(Amps)

DC Bias(Amps)

HCP1305-2R2-R

100

2.08

80

1.56

60

1.04

40

0.52

20

0.00

Temp.-rise(ºC)

Inductance(uH)

Inductance(uH)

Temp.-rise(ºC)

Inductance(uH)

0.80

2.60

30

HCP1305-1R5-R

1.80

100
80

20

20

DC Bias(Amps)

HCP1305-1R0-R

10

100

0.60

50

1.00

0

50

0.80

DC Bias(AMPS)

1.20

40

HCP1305-R82-R

1.00

100
80

0

30

DC Bias(Amps)

DC Bias(Amps)

0.80

20

Temp.-rise(ºC)

10

60
0.3

Temp.-rise(ºC)

0

80
0.45

Temp.-rise (ºC)

80

Inductance(uH)

Temp.-rise(ºC)

Inductance(uH)

0.6

0.50

0
0

5

10

15

20

25

30

35

DC Bias(Amps)

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HCF1305 Series
Power Inductors

Part Number

HCF1305-R47-R
HCF1305-R56-R
HCF1305-1R0-R
HCF1305-1R2-R
HCF1305-1R8-R
HCF1305-2R2-R
HCF1305-3R0-R
HCF1305-3R3-R
HCF1305-4R0-R
HCF1305-4R7-R

Rated
Inductance
(μH)
0.47
0.56
1.00
1.20
1.80
2.20
3.00
3.30
4.00
4.70

Packaging
• Supplied in tape and reel packaging,
600 parts per reel

OCL (1)
μH ± 20%

Irms (2)
Amperes

Isat (3)
Amperes

Isat2 (4)
Amperes

0.47
0.56
1.00
1.20
1.80
2.20
3.00
3.30
4.00
4.70

32.0
32.0
22.0
22.0
16.3
16.3
13.2
13.2
10.9
10.9

36.0
30.0
24.0
20.0
18.0
15.0
14.4
12.5
12.0
10.4

30.0
22.5
20.0
15.0
15.0
11.2
12.0
9.0
10.0
7.5

1) OCL: Open Circuit Inductance test parameters: 100kHz, 0.1Vrms, 0.0Adc.
OCL@-40°C can be lower than OCL@20°C by 15% max.
2) Irms: DC current for an approximate DT of 40°C without core loss. Derating is
necessary for AC currents. PCB layout, trace thickness and width, air-flow, and
proximity of other heat generating components will affect the temperature rise. It
is recommended that the temperature of the part not exceed 125°C under worst
case operating conditions verified in the end application.
3) Isat1: Amperes Peak for approximately 30% rolloff (@25°C)
4) Isat2: Amperes Peak for approximately 30% rolloff (@125°C)

HIGH CURRENT (HCF1305)

Description
RoHS
2002/95/EC
• 125°C maximum total temperature operation
• 12.5mm x 12.5mm x 5.0mm ferrite core
material package
• Low profile surface mount inductors designed for higher
speed switch mode applications requiring low voltage
and high current
• Design utilizes ferrite core with high DC bias resistance
and low core loss
• Inductance range from 0.47μH to 4.7μH
• Current range from 36.0 Amps to 10.4 Amps
• Frequency range 100kHz to 1MHz
Applications
• Next generation processors
• High current DC-DC converters
• VRM, multi-phase buck regulators
• PC Workstations, Routers, Servers
• Telecom soft switches, Base stations
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating temperature range: -40°C to +125°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
maximum

DCR
mΩ@20°C
(Typical)
0.83
0.83
1.58
1.58
2.58
2.58
4.08
4.08
6.0
6.0

DCR
mΩ@20°C
(Maximum)
1.00
1.00
1.90
1.90
3.10
3.10
4.90
4.90
7.2
7.2

K-factor
(5)
21
21
14
14
10
10
8.3
8.3
6.9
6.9

5) K-factor: Used to determine B p-p for core loss (see graph). B p-p = K*L*ΔI
B p-p:(mT), K: (K factor from table), L: (Inductance in μH), ΔI (Peak to peak ripple
current in Amps).
Part number definition:
HCF1305-XXX-R
HCF1305 = Product code and size
XXX = Inductance value in uH.
R = Decimal point. If no R is present, third character = #of zeros
-R suffix indicates RoHS compliant

Mechanical Diagrams
TOP VIEW

BOTTOM VIEW

A

1

RECOMMENDED PCBLAYOU T

C

2

3

E

SCHEMAT IC

L

B

HCF1305-XXX
wwllyy R

DIMENSION TABLE

FRONT VIEW

F

D

A: 12.5max
G: 4.00 Ref.
B: 12.5max
H: 5.40 Ref.
C: 5.0max
I: 3.00 Ref.
D: 2.00 ref
J: 4.00 Ref.
E: 2.40 +/- 0.10 K: 4.00 Ref.
F: 6.90 +/- 0.30 L: 3.4 Ref.

1

K

2

H
G

Dimensions in Millimeters

J

wwllyy=Date code, R=Revision Level
I

I

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HCF1305 Series
Power Inductors
Packaging Information

1.5 dia
+0.1/-0.0

4.0
1.5 dia
min

2.0

A
1.75

HCF1305-XXX
wwlly y-R

11.5

B0

24.0
+/-0.3

K0
A0

A

16.00

A0= 12.60 mm
B0= 12.60 mm
K0= 5.50 mm

User direction of feed

Parts packaged on a 13" Diameter reel.
600 parts per reel.

Core Loss
10
1MHz

500kHz
300kHz

1

200kHz
Core Loss (W)

100kHz
0.1

0.01

0.001

0.0001
1

10

100

1000

Bp-p (m T)

Temperature Rise vs. Total Loss
Temperature Rise Vs. Power Loss

100
Temperature Rise (ºC)

HIGH CURRENT (HCF1305)

SECTION A-A

80
60
40
20
0
0

0.4

0.8

1.2

1.6

2

Total Pow er Loss (W)

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HCF1305 Series
Power Inductors
Inductance Characteristics
Normalized Rolloff Curves at 25 Deg. C
100.0%

90.0%

% of OCL

80.0%

70.0%
R47, 1R0, 1R8, 3R0 and 4R0
R56, 1R2 and 2R2
3R3 and 4R7

HIGH CURRENT (HCF1305)

60.0%

50.0%

40.0%
0.0%

20.0%

40.0%

60.0%
80.0%
% of ISAT1

100.0%

120.0%

100.0%

120.0%

140.0%

Normalized Rolloff Curves at 125 Deg. C
100.0%
90.0%

% of OCL

80.0%
70.0%
60.0%
50.0%

R47, 1R0, 1R8, 3R0 and 4R0
R56, 1R2 and 2R2
3R3 and 4R7

40.0%
30.0%
0.0%

20.0%

40.0%

60.0%
80.0%
% of ISAT2

140.0%

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HIGH CURRENT (HC1)

HIGH CURRENT 1
Power Inductors
Description
RoHS
2002/95/EC
• Designed for high current, low voltage applications
• Low DCR, high efficiency
• Foil construction for higher frequency circuit designs
• Suited for IR and vapor reflow solder
• Frequency range 1kHz to 1MHz
• Ferrite core material
Applications
• Next generation microprocessors
• High current DC-DC converters
• Computers
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating ambient temperature range: -40°C to +85°C
(range is application specific).
• Solder reflow temperature: +260°C max. for 10 seconds
max.
Part
Number
HC1-R22-R
HC1-R30-R
HC1-R57-R
HC1-R87-R
HC1-1R0-R
HC1-1R7-R
HC1-2R3-R
HC1-3R6-R
HC1-5R1-R
HC1-7R8-R
HC1-100-R

Rated
Inductance
μH
0.22
0.30
0.57
0.87
1.0
1.7
2.3
3.6
5.1
7.8
10

OCL (1)
± 15%
μH
0.218
0.291
0.572
0.866
1.12
1.66
2.29
3.59
5.15
7.85
10.5

Irms (2)
Amperes
(Approx.)
51.42
51.42
37.83
28.01
28.01
22.30
22.30
16.76
12.79
12.79
12.79

1) OCL (Open Circuit Inductance) Test parameters: 300KHz, .25Vrms,
0.0Adc & Isat.
2) Irms Amperes for approximately ΔT of 40°C. DC current for an approximate ΔT of
40°C without core loss. Derating is necessary for AC currents. It is recommended
that the temperature of the part not exceed 125°C under worst case operating
conditions verified in the end application.

Packaging
• Supplied in tape and reel packaging, 250 per reel

Isat (3)
Amperes
(Approx.)
40.5
31.8
33.4
31.0
25.4
22.2
16.7
13.4
11.2
6.7
5.3

DCR (Ω)
Max. @
20°C
0.00036
0.00036
0.00068
0.00123
0.00123
0.0020
0.0020
0.0035
0.0057
0.0057
0.0057

Volt-μSec (4)
(VμS)
(ref.)
1.83
1.83
3.66
5.49
5.49
7.33
7.33
9.16
10.99
10.99
10.99

3) Isat Amperes Peak for approximately 30% rolloff @ 20°C
4) Applied Volt-Time product (V-μS) across the inductor. This value represents the
applied V-μS at 200kHz necessary to generate a core loss equal to 10% of the
total losses for 40°C temperature rise. See Core Loss Graph.
Units supplied in tape & reel packaging; 250 parts on 13" diameter reel.

Mechanical Diagrams

Dimensions in Millimeters

xxx = Inductance value
wwllyy = Date code R = Revision level

PM-34

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HIGH CURRENT 1
Power Inductors
Packaging Information

4.00
1.5 dia
+0.1/-0.0

2.00

1.5 dia
min

0.35
+/-0.05

A
1.7

1
11.50
.

HC1-XXX

wwllyy R

13.4

24.0
+/-0.3
0

2
2.0

10.3

A

20.00

SECTION A-A
13.4

User direction of feed

HIGH CURRENT (HC1)

Core Loss
Irms DERATING WITH CORE LOSS
0
20
40
50

70

z
KH
50

100

KH

z

80

400
K
300 Hz
KH
z
200
KH
z

% of Losses from Irms (maximum)

60

90
92
94
95
96
97

98

99

10

20

30

40

50

60

70

80 90

100

200

300

400

500

600

800

1000

% of Applied Volt-μ-Seconds

PM-35

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HIGH CURRENT 1
Power Inductors
Inductance Characteristics

HIGH CURRENT (HC1)

HC1 Inductor (R22, 7R8)

100

100

90

90

OCL (%)

OCL (%)

HC1 Inductor (R87)

80

80

70

70

60

60

50

50
0

10

20

30

40

50

60

70

80

90

100

110

120

0

10

20

30

40

50

% of Isat

100

100

90

90

80

80

OCL (%)

OCL (%)

70

80

90

100

110

120

80

90

100

110

120

80

90

100

110

120

HC1 Inductor (R57, 2R3, 3R6, 5R1)

HC1 Inductor (1R7)

70

70

60

60

50

50
0

10

20

30

40

50

60

70

80

90

100

110

120

0

10

20

30

40

50

60

70

% of Isat

% of Isat

HC1 Inductor (R30, 100)

HC1 Inductor (1R0)

100

100

90

90

80

OCL (%)

OCL (%)

60

% of Isat

80

70

70

60

60

50

50
0

10

20

30

40

50

60

% of Isat

70

80

90

100

110

120

0

10

20

30

40

50

60

70

% of Isat

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HIGH CURRENT 2LP
Low Profile Power Inductors

Part
Number

Rated
Inductance
μH
.47
.68
1.0
2.2
4.7
6.0

HC2LP-R47-R
HC2LP-R68-R
HC2LP-1R0-R
HC2LP-2R2-R
HC2LP-4R7-R
HC2LP-6R0-R

OCL (1)
μH ± 20%

Packaging
• Supplied in tape and reel packaging, 44mm width,
130 parts per 13" reel

Irms (2)
Amperes
(Typ.)
52.9
52.9
33.0
24.3
17.0
17.0

.52
.63
1.15
2.00
4.55
6.00

Isat (3)
Amperes
(Typ.)
63.75
50.00
42.50
31.90
21.25
16.50

DCR (4)
Ohms
(Max.)
.0006
.0006
.0013
.0023
.0046
.0046

Volts (5)
μSec

HIGH CURRENT (HC2LP)

Description
RoHS
2002/95/EC
• Compact footprint for high density, high
current/low voltage applications
• Foil technology that adds higher reliability factor
over the traditional magnet wire used for higher frequency circuit designs
• Frequency Range up to 1MHz
• Ferrite core material
Applications
• Next generation microprocessors
• Energy storage applications
• DC-DC converters
• Computers
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating ambient temperature range: -40°C to +85°C
(range is application specific).
• Solder reflow temperature: +260°C max. for 10 seconds
max.

6.87
6.87
10.31
13.75
20.62
20.62

worst case operating conditions verified in the end application.
3) Peak current for approximately 30% roll-off
4) Values @ 20°C
5) Applied Volt-Time product (V-μS) across the inductor. This value represents the
applied V-μS at 300KHz necessary to generate a core loss equal to 10% of the
total losses for 40°C temperature rise.

1) Open Circuit Inductance Test Parameters: 300kHz, 0.250 Vrms, 0.0 Adc
2) DC current for an approximate temperature change of 40°C without core loss.
Derating is necessary for AC currents.
PCB layout, trace thickness and width, air-flow and proximity of other heat generating components will affect the temperature rise.
It is recommended that the temperature of the part not exceed 125°C under

Mechanical Diagrams
RECOMMENDED PCB PAD LAYOUT

TOP VIEW

FRONT VIEW

19.2
max

9.5
typ

1

HC2LP-xxx
wwllyy R

SCHEMATIC

10.00

11.18
max

19.00

2

19.2
max

2.8
typ
5.50

Packaging Information

2

2.3
typ

5.50

1

xxx = Inductance value
wwllyy = Date code R = Revision level

4.0
1.5Dia +0.10
-0.00

2.0
1.7

A

20.2

19.3

1

40.4
+/-0.1

44.0
+/-0.3

A
11.3

Dimensions in Millimeters

SECTION A-A

19.3
32

User direction of feed

Parts packaged on 13" Diameter reel,
130 parts per reel.

PM-37

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HIGH CURRENT 2LP
Low Profile Power Inductors
Core Loss

IRMS DERATING WITH CORE LOSS

HIGH CURRENT (HC2LP)

20
40
50
60

0K
Hz
10

Hz
20
0K

Hz
50
0K

30
0K

80

Hz

70

1M
Hz

% of Losses from Irms (maximum)

0

90
92
94
95
96
97
98

99
10

20

30

40

50

60

80

100

200

300

400 500 600

800 1000

% of Applied Volt-μ-Seconds
Inductance Characteristics

OCL vs. Isat

100

90

80

% of OCL

70

60

50

40

30

20

10

0
0

20

40

60

80

100

120

140

160

180

200

% of ISAT

PM-38

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HC3 Series
HIGH CURRENT 3
Power Inductors

Part
Number
HC3-R50-R
HC3-1R0-R
HC3-2R2-R
HC3-3R3-R
HC3-4R7-R
HC3-5R6-R
HC3-6R0-R

Rated
Inductance
μH
0.50
1.0
2.2
3.3
4.7
5.6
6.0

OCL (1)
nominal
+/-20% μH
0.50
1.05
2.05
3.63
4.98
5.68
6.52

Irms (2)
Amperes
(Typ.)
78.00
78.00
55.50
42.45
33.80
33.80
33.80

1) Test Parameters: 300kHz, 0.25 Vrms
2) DC current for approximately ΔT of 40°C without core loss
De-rating is necessary for AC currents. PCB layout, trace thickness and width,
air flow and proximity of other heat generating components will affect temperature
rise. It is recommended that the temperature of the part not exceed 125°C under
worst case conditions verified in the end application.
3) Peak current for approximately 30% rolloff (@20°C)
4) Applied Volt-Time product (V-μS) across the inductor. This value represents the
applied V-μS at 300kHz necessary to generate a core loss equal to 10% of the
total losses for a 40°C temperature rise.

HIGH CURRENT (HC3)

Description
RoHS
2002/95/EC
• High Density, high current/low voltage
applications
• Foil technology that adds higher reliability
factor over the traditional magnet wire used
for higher frequency circuit designs
• Current range from 78.0 to 33.8 Amps
• Inductance range from 0.50uH to 6.52uH
• Ferrite core material
Applications
• Next generation microprocessors
• Energy storage applications
• DC-DC converters
• Computers
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating ambient temperature range: -40°C to +85°C
• Solder reflow temperature: +260°C max. for 10 seconds
max.

Packaging
• Supplied in bulk packaging, 24 parts per tray

Isat (3)
Amperes
(Typ.)
120
78
60
46
38
34.5
30.0

DCR (mΩ)
max. @
20°C
0.42
0.42
0.70
1.20
2.17
2.17
2.17

Volts (4)
μSec (VμS)
(ref.)
17.33
17.33
26.01
34.65
43.30
43.30
43.30

Part number definition:
HC3-XXX-R
HC3 = Product code and size
XXX = Inductance value in uH.
R = Decimal point. If no R is present, third character = #of zeros
-R suffix indicates RoHS compliant

Mechanical Diagrams
TOP VIEW

RECOMMENDED
PCB PAD LAYOUT

FRONT VIEW

SCHEMATIC

14.5 typ
1

22.0

30.0 max

HC3
wwllyy R

4.0 typ

HT max

2
5.50

19.0

5.50

3.0 typ
25.3 max

wwllyy = Date code R = Revision level

Part Number
HC3-R50-R
HC3-1R0-R
HC3-2R2-R
HC3-3R3-R
HC3-4R7-R
HC3-5R6-R
HC3-6R0-R

Height max
18.0
17.5
17.5
17.5
17.5
17.5
17.5

PM-39

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HC3 Series
HIGH CURRENT 3
Power Inductors
Inductance Characteristics
OCL vs Isat
100
90
80

% of OCL

70
60
50
40
30

10
0
0

10

20

30

40

50

60

70

80

90

100

110

120

130

% of Isat

Core Loss

Irms DERATING W ITH CORE LOSS for HC3
% Applied Volt-u Seconds
10

30

50

70

90

110

130

150

170

190

30

%of Irms specified from
zero ripple application

HIGH CURRENT (HC3)

20

40

50

60

100kHz
200kHz

70

300kHz
400kHz

80

500kHz

90

100

PM-40

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HC7 Series
HIGH CURRENT 7
Power Inductors

Part
Number
HC7-R20-R
HC7-R47-R
HC7-1R0-R
HC7-1R5-R
HC7-2R2-R
HC7-3R9-R
HC7-4R7-R

Rated
Inductance
μH
.20
.47
1.0
1.5
2.2
3.9
4.7

OCL (1)
nominal
+/-20% μH
0.220
0.534
1.05
1.73
2.58
3.61
4.81

Irms (2)
Amperes
(Typ.)
35.80
23.40
20.30
14.20
13.00
10.40
9.80

Isat (3)
Amperes
15% rolloff
45.8
27.5
19.6
15.3
12.5
10.6
9.2

1) Test Parameters: 100KHz, 1.0Vrms
2) Irms Amperes for approximately ΔT of 40°C above 85°C ambient
3) Isat Amperes Peak for approximately 15% rolloff (@20°C)
4) Isat Amperes Peak for approximately 30% rolloff (@20°C)
5) Applied Volt-Time product (V-μS) across the inductor. This value represents the
applied V-μS at operating frequency necessary to generate additional core loss
which contributes to the 40°C temperature rise. De-rating of the Irms is required
to prevent excessive temperature rise. The 100% V-uS rating is equivalent to a
ripple current Ip-p of 20% of Isat (30% rolloff option).
It is recommended that the temperature of the part not exceed 155°C under worst
case operating conditions verified in the end application.

Mechanical Diagrams

Isat (4)
Amperes
30% rolloff
86.5
51.9
37.1
28.8
23.6
20.0
17.3

DCR (mΩ)
max. @
20°C
0.67
1.60
2.10
4.30
5.20
7.90
9.00

Volts (5)
μSec
(VμS)
2.27
3.83
5.36
6.90
8.40
10.0
12.6

Units supplied in tape and reel packaging. 13" reels 610 parts per reel.
Carrier tape width = 24 mm. Meets EIA standard
Part number definition:
HC7-XXX-R
HC7 = Product code and size
XXX = Inductance value in uH.
R = Decimal point. If no R is present, third character = #of zeros
-R suffix indicates RoHS compliant

FRONT VIEW

TOP VIEW

C

SIDE VIEW

L

HC7-XXX
wwllyy R

Packaging
• Supplied in tape and reel packaging, 610 parts per reel

HIGH CURRENT (HC7)

Description
RoHS
2002/95/EC
• 155°C maximum total temperature operation
• Surface mount inductors designed for higher
speed switch mode applications requiring
lower inductance, low voltage and high current
• Design utilizes high temperature powder iron material
with a non-organic binder to eliminate thermal aging
• Inductance range from 0.22 uH to 4.81 uH
• Current range from 35.8 to 9.8 Amps
• Frequency range 1kHz to 500kHz
Applications
• Next generation microprocessors
• High current DC-DC converters
• VRM, multi-phase buck regulator
• PC, Workstations, Routers
• Telecom soft switches, Base Stations
Environmental Data
• Storage temperature range: -40°C to +155°C
• Operating ambient temperature range: -40°C to +155°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
max.

Height
Max

Length
Max

3.0 ± 0.25
(2x)

2.60 max
5.10
±0.40

13.0
Max

RECOMMENDED PCB PAD LAYOUT
3.50 typ
2plcs

SCHEMATIC
1

3.50 typ
2plcs

6.50 typ

2

Maximum Dimension
Part Number
HC7-R20-R
HC7-R47-R
HC7-1R0-R
HC7-1R5-R
HC7-2R2-R
HC7-3R9-R
HC7-4R7-R

Height mm
6.0
5.5
5.5
5.5
5.5
5.5
5.5

Length mm
14.25
13.8
13.8
13.8
13.8
13.8
13.8

Dimensions in Millimeters.
All dimensions I+/- 0.2 mm unless otherwise specified.
All soldering surfaces are coplanar within 0.15 mm.

wwllyy = Date code R = Revision level

PM-41

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HC7 Series
HIGH CURRENT 7
Power Inductors
4.0

Packaging Information

1.5 dia
+0.1/-0.0

2.0
1.5 dia
min

A
1.75

1

A0= 13.00 mm
A1= 4.00 mm

11.5

B0= 13.00 mm
B1= 14.10 mm

B0

B1

24.0
+/-0.3

HC7-XX X
wwllyy R

K0= 5.6 mm
K1= 6.0 mm

2

K0

16.00

K1

A1

A

SECTION A-A
A0
User direction of feed

Core Loss

Irms DERATING WITH CORE LOSS
% of Applied Volt-u-Seconds
10

20

30

40

50

60

70

80

90

100 110 120 130 140 150 160 170 180 190 200

0
10
20

(maximum)

% of Irms specified from
zero ripple application

HIGH CURRENT (HC7)

Dimensions in Millimeters

100kHz
200kHz
300kHz
400kHz
500kHz

30
40
50
60
70
80
90
100

Inductance Characteristics
Inductance vs. Idc
5
4.5
4
HC7-R20
3.5

HC7-R47

3

HC7-1R0

L
2.5
(uH)
2

HC7-1R5
HC7-2R2
HC7-3R9

1.5

HC7-4R7
1
0.5
0
0

6

12

18

24

30

36

42

48

54

60

66

72

78

84

DC CURRENT (A)

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HC8 Series
HIGH CURRENT 8
Power Inductors

Part
Number
HC8-R15-R
HC8-R39-R
HC8-R75-R
HC8-1R2-R
HC8-1R9-R
HC8-2R6-R
HC8-3R5-R
HC8-4R5-R
HC8-5R6-R
HC8-6R9-R
HC8-8R2-R
HC8-100-R
HC8-150-R
HC8-220-R
HC8-330-R
HC8-470-R

Rated
Inductance
μH
0.15
0.39
0.75
1.2
1.9
2.6
3.5
4.5
5.6
6.9
8.2
10.0
15.0
22.0
33.0
47.0

OCL (1)
nominal
+/-20% μH
0.175
0.390
0.766
1.32
1.90
2.65
3.52
4.52
5.65
6.90
8.27
9.77
15.02
21.40
31.65
47.28

Irms (2)
Amperes
(Typ.)
39.0
28.3
18.8
16.0
12.4
10.2
8.50
8.00
6.70
6.40
5.50
5.20
4.10
3.40
2.70
2.20

1) Test Parameters: 100KHz, 1.0Vrms
2) Irms Amperes for approximately ΔT of 40°C above 85°C ambient
3) Isat Amperes Peak for approximately 15% rolloff (@20°C)
4) Isat Amperes Peak for approximately 30% rolloff (@20°C)
5) Applied Volt-Time product (V-μS) across the inductor. This value represents the
applied V-μS at operating frequency necessary to generate additional core loss
which contributes to the 40°C temperature rise. De-rating of the Irms is required
to prevent excessive temperature rise. The 100% V-uS rating is equivalent to a
ripple current Ip-p of 20% of Isat (30% rolloff option).

Packaging
• Supplied in tape and reel packaging, 800 parts per reel

Isat (3)
Amperes
15% rolloff
43
26
18.5
14.4
11.8
10.0
8.7
7.7
6.9
6.2
5.7
5.2
4.2
3.5
2.9
2.4

Isat (4)
Amperes
30% rolloff
76
45
32.7
25.5
20.9
17.7
15.3
13.5
12.1
10.9
10.0
9.2
7.4
6.2
5.1
4.2

DCR (mΩ)
max. @
20°C
0.80
1.55
3.40
4.70
7.7
11.4
16.5
18.6
26.3
28.9
39.6
43.6
68.6
99.5
154
237

HIGH CURRENT (HC8)

Description
RoHS
2002/95/EC
• Surface mount inductors, 4.0mm height,
designed for higher speed switch mode
applications requiring low voltage and high current
• 155°C maximum total operating temperature
• Design utilizes high temperature powder iron material
with a non-organic binder to eliminate thermal aging
• Inductance offering expanded for applications
requiring higher inductance.
• Inductance Range from 0.175 uH to 47.3 uH
• Current Range from 39.0 to 2.4 Amps
• Frequency Range 1kHz to 500kHz
Applications
• Next generation microprocessors
• High current DC-DC converters
• VRM, multi-phase buck regulator
• PC, Workstations, Routers
• Telecom soft switches, Base Stations
Environmental Data
• Storage temperature range: -40°C to +155°C
• Operating ambient temperature range: -40°C to +155°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
max.

Volts (5)
μSec (VμS)
(ref.)
1.5
2.5
3.5
4.5
5.5
6.5
7.5
8.5
9.5
10.5
11.5
12.5
15.5
18.6
22.6
27.6

It is recommended that the temperature of the part not exceed 155°C under worst
case operating conditions verified in the end application.
Part number definition:
HC8-XXX-R
HC8 = Product code and size
XXX = Inductance value in uH.
R = Decimal point. If no R is present, third character = #of zeros
-R suffix indicates RoHS compliant

Mechanical Diagrams
FRONT VIEW

TOP VIEW

FRONT VIEW
TABLE

C
L

10.9
Max

HC8-XXX
wwll yy R

10.4
Max

4.0
Max

A ref
10.4
Max

3.95
2 plcs
ref

PN

A
mm

R15

2.1

R39

2.1

R75

2.1

1R

2.1

1R9
thru
470

2.7

SIDE VIEW

RECOMMENDED PCB PAD LAYOUT
SCHEMATIC
3.5 typ
2plcs

2.70 ± 0.55
(2x)

1

3.0 typ
2plcs

4.0 typ

2

wwllyy = Date code R = Revision level
xxx = Inductance value

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HC8 Series
HIGH CURRENT 8
Power Inductors
4.0

Packaging Information

1.5 dia
+0.1/-0.0

2.0
1.5 dia
min

A
1.75

11.5

Ao=10.4 mm
Bo=11.2 mm

Bo

11.2

Ko=4.3 mm

24.0
+/-0.3

HC8-XXX
wwlly y R

Ko

A

SECTION A-A
16.0

Ao

User direction of feed

Inductance Characteristics

OCL vs Isat
100
90
80

% of OCL

70
60
50
40
30
02
10
0
0

10

20

30

40

50

60

70

80

90

100 110 120 130 140 150 160 170 180 190 200

% of Isat

Core Loss

Irms DERATING WITH CORE LOSS
% Applied Volt-u Seconds
10

30

50

70

90

110

130

150

170

190

84

% of Irms specified from
zero ripple application

HIGH CURRENT (HC8)

Dimensions in Millimeters

86
88
90
92
94

100kHz
200kHz
300kHz
400kHz
500kHz

96
98
100

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HC8LP Series
Power Inductors

Part
Number
HC8LP-R15-R
HC8LP-R39-R
HC8LP-R75-R
HC8LP-1R2-R
HC8LP-1R9-R
HC8LP-2R6-R
HC8LP-3R5-R
HC8LP-4R5-R
HC8LP-5R6-R
HC8LP-6R9-R
HC8LP-8R2-R
HC8LP-100-R
HC8LP-150-R
HC8LP-220-R
HC8LP-330-R
HC8LP-470-R

Rated
Inductance
μH
0.15
0.39
0.75
1.2
1.9
2.6
3.5
4.5
5.6
6.9
8.2
10.0
15.0
22.0
33.0
47.0

OCL (1)
nominal
+/-20% μH
0.170
0.430
0.830
1.35
1.92
2.67
3.56
4.57
5.71
6.98
8.37
9.90
15.20
21.70
32.10
47.90

RoHS
2002/95/EC

Irms (2)
Amperes
(Typ.)
29.0
20.2
15.6
12.4
10.1
8.3
6.9
6.5
5.5
5.2
4.5
4.3
3.4
2.8
2.3
1.8

1) Open Circuit Inductance test parameters: 100KHz, 1.0V, 0.0Adc
2) Irms: DC current for an approximate DT of 40°C without core loss. Derating is
necessary for AC currents. PCB layout, trace thickness and width, air-flow, and proximity of other heat generating components will affect the temperature rise. It is recommended that the temperature of the part not exceed 155°C under worst case
operating conditions verified in the end application.
3) Isat Amperes Peak for approximately 15% rolloff (@20°C)
4) Isat Amperes Peak for approximately 30% rolloff (@20°C)
5) Applied Volt-Time product (V-μS) across the inductor. This value represents the
applied V-μS at operating frequency necessary to generate additional core loss
which contributes to the 40°C temperature rise. De-rating of the Irms is required
to prevent excessive temperature rise. The 100% V-uS rating is equivalent to a
ripple current Ip-p of 20% of Isat (30% rolloff option).

Packaging
• Supplied in tape and reel packaging, 800 parts per reel

Isat (3)
Amperes
15% rolloff
31
19
13.5
10.1
8.7
7.4
6.4
5.6
5.1
4.6
4.2
6.8
3.1
2.6
2.1
1.7

Isat (4)
Amperes
30% rolloff
56
34
24
18.7
15.5
13.1
11.4
10.0
9.0
8.1
7.4
3.8
5.5
4.6
3.8
3.1

DCR (mΩ)
max. @
20°C
1.40
2.80
4.70
7.50
11.5
17.1
24.5
27.6
38.9
42.8
58.0
62.9
99.4
149
224
344

HIGH CURRENT (HC8LP)

Description
• 155°C maximum temperature operation
• Low profile surface mount inductors designed
for higher speed switch mode applications
requiring low voltage, and high current
• Design utilizes high temperature powder iron material
with a non-organic binder to eliminate thermal aging
• Inductance range from 0.17 uH to 47.9 uH
• Current range from 29 Amps to 1.8 Amps
• Frequency range 1kHz to 500kHz
Applications
• Next generation processors
• High current DC-DC converters
• VRM, multi-phase buck regulator
• PC Workstations, Routers, Servers
• Telecom soft switches, Base stations
Environmental Data
• Storage temperature range: -40°C to +155°C
• Operating temperature range: -40°C to +155°C
(Range is application specific)
• Solder reflow temperature: +260°C max. for
10 seconds max.

Volts (5)
μSec (VμS)
(ref.)
7.8
4.7
3.4
2.6
4.1
4.8
5.6
6.3
7.1
7.8
8.6
9.3
11.6
13.7
16.8
20.3

Part number definition:
HC8LP-xxx-R
HC8LP = Product code and size
xxx = Inductance in μH. R = decimal point.
If no R is present third character = # of zeros.
-R suffix indicates RoHS compliant

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HC8LP Series
Power Inductors
Mechanical Diagrams
SIDE VIEW

TOP VIEW

RECOMMENDED PCB PAD LAYOUT

2.70 ± 0.55
(2 x)
10.9
Max

3.5 typ
2plcs

10.4
Max

HC8LP-XXX
wwll yy R

3.0 typ
2plcs

4.0 typ

10.4
Max

HIGH CURRENT (HC8LP)

FRONT VIEW
Dimesional Table

FRONT VIEW
C

PN

A
ref
mm

B
max
mm

L

B
Max

A ref
3.95
2 plcs
ref

R15

2.1

3.5

R39

2.1

3.5

R75

2.1

3.5

1R2
1R9
thru
470

2.1

3.3

2.7

3.5

SCHEMATIC
1

2

Dimensions in Millimeters
wwllyy = Date Code, R = Revision Level

Packaging Information
4.0
1.5 dia
+0.1/-0.0

2.0

1.5 dia
min

A
1.75

A o=10.4 mm

11.5

Bo=11.2 mm
K o=4.3 mm

Bo

11.2

24.0
+/-0.3

HC8-XXX
wwlly y R

Ko

A

SECTION A-A
Ao

16.0
User direction of feed

Packaging Information:
Parts packaged on a
13" Dia. EIA-481 compliant reel.
800 parts per reel.

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HC8LP Series
Power Inductors
Core Loss

Irms DERATING WITH CORE LOSS
% Applied Volt-u Seconds
10

30

50

70

90

110

130

150

170

190

% of Irms specified from
zero ripple application
(Maximum)

92
93
94

96
97

HIGH CURRENT (HC8LP)

100kHz
200kHz
300kHz
400kHz
500kHz

95

98
99
100

Rolloff

OCL vs Isat
100

90

% of OCL

80

70

60

50

40

30

20

10

0
0

10

20

30

40

50

60

70

80

90

100

110

120

130

140

150

160

170

180

190

200

210

220

% of Isat

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HIGH CURRENT (HC9)

HC9 Series
HIGH CURRENT 9
Power Inductors
Description
RoHS
2002/95/EC
• 155°C maximum total temperature operation
• Surface mount inductors designed for higher speed
switch mode applications requiring lower inductance,
low voltage and high current
• Design utilizes high temperature powder iron material
with a non-organic binder to eliminate thermal aging
• Inductance Range from 0.2 uH to 47.0 uH
• Current Range from 95.0 Amps to 3.65 Amps
• Frequency Range 1kHz to 500kHz
Applications
• Next generation processors
• High current DC-DC converters
• VRM, multi-phase buck regulator
• PC, Workstations, Routers, Servers
Environmental Data
• Storage temperature range: -40°C to +155°C
• Operating temperature range: -40°C to +155°C
(range is application specific)
• Solder reflow temperature: +260°C max for 10 seconds
maximum
Part
Number
HC9-R20-R
HC9-R47-R
HC9-1R0-R
HC9-1R5-R
HC9-2R2-R
HC9-3R3-R
HC9-4R3-R
HC9-6R8-R
HC9-100-R
HC9-220-R
HC9-330-R
HC9-470-R

Rated
Inductance
μH
0.20
0.47
1.0
1.5
2.2
3.3
4.3
6.8
10.0
22.0
33.0
47.0

OCL (1)
nominal
+/-15% μH
0.218
0.544
1.04
1.70
2.53
3.52
4.67
7.45
10.9
22.4
34.5
49.2

Irms (2)
Amperes
(Typ.)
46.7
33.7
23.7
21.0
17.2
14.3
13.0
10.3
8.50
6.30
4.42
3.65

1) Test Parameters: 100KHz, 1.0Vrms
2) Irms Amperes for approximately ΔT of 40°C without core loss.
De-rating is necessary for AC currents. PCB layout, trace thickness and width,
airflow, and proximity of other heat generating components will affect the temperature rise. It is recommended that the temperature of the part not exceed 155°C
under worst case conditions verified in the end application.
3) Peak current for approximately 20% rolloff @20°C
4) Peak current for approximately 30% rolloff @20°C
5) Applied Volt-Time product (V-μS) across the inductor. This value represents the
applied V-μS at operating frequency necessary to generate additional core loss
which contributes to the 40°C temperature rise. De-rating of the Irms is required
to prevent excessive temperature rise. The 100% V-uS rating is equivalent to a
ripple current Ip-p of 20% of Isat (30% rolloff option).

Packaging
• Supplied in tape and reel packaging, 450 parts per reel

Isat (3)
Amperes
20% rolloff
65
40
28
22
18
15
13.2
11.4
8.6
6.0
4.8
3.9

Isat (4)
Amperes
30% rolloff
95
57
41
32
26
22
19.1
15.1
12.5
8.7
7.0
5.7

DCR (mΩ)
max. @
20°C
0.50
0.88
1.87
2.27
3.37
4.87
5.90
9.40
14.0
25.7
48.8
72.3

Volts (5)
μSec
(VμS)
2.87
4.78
6.70
8.46
10.4
12.4
14.4
18.1
22.0
31.5
37.3
44.8

Part number definition:
First 3 characters = Product code and size.
Last 3 characters = Inductance in μH. R = decimal point.
If no R is present third character = # of zeros.

Mechanical Diagrams

Dimensions in Millimeters. All dimensions +/-0.2 mm unless otherwise specified.
wwllyy = Date Code, R = Revision Level

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HC9 Series
HIGH CURRENT 9
Power Inductors
Packaging Information

Dimensions in Millimeters

HIGH CURRENT (HC9)

Rolloff

Core Loss

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HIGH CURRENT (HCPT1309)

HCPT1309 Series
Power Inductors
Description
RoHS
2002/95/EC
• 105°C maximum total temperature operation
• 13.2mm x 13.2mm x 9.0mm through hole
package
• Core material: Powder Iron
• Inductance range from 0.20μH to 3.3μH
• Current range from 90.0 Amps to 11.4 Amps
• Frequency range up to 1MHz
Applications
• Next generation processors
• High current DC-DC converters
• VRM, multi-phase buck regulator
• Desktop computers
• Video game power
Environmental Data
• Storage temperature range: -40°C to +105°C
• Operating temperature range: -40°C to +105°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
maximum
Part Number

HCPT1309-R20-R
HCPT1309-R47-R
HCPT1309-1R0-R
HCPT1309-1R5-R
HCPT1309-2R2-R
HCPT1309-3R3-R

OCL (1)
nominal +/20% (μH)
0.20
0.49
0.96
1.59
2.27
3.31

Irms (2)
Amperes

Packaging
• Supplied in bulk packaging, 100 parts per tray

Isat Amperes (3)
Peak 20%
rolloff @20°C
72.2
43.3
30.9
24.1
19.7
16.7

43.1
34.0
19.4
13.7
12.5
11.4

(1) OCL: Open Circuit Inductance test parameters: 100kHz, 0.1Vrms, 0.0Adc.
(2) Irms: DC current for an approximate ΔT of 40°C without core loss. Derating is
necessary for AC currents. PCB layout, trace thickness and width, air-flow, and
proximity of other heat generating components will affect the temperature rise. It
is recommended that the temperature of the part not exceed 105°C under worst
case operating conditions verified in the end application.

Isat Amperes (4)
Peak 30%
rolloff @20°C
90.0
55.0
40.0
30.6
25.0
21.0

DCR (mΩ)
nom @20°C

K-factor
(5)

0.426
0.624
1.90
3.82
4.10
4.80

154.1
92.4
66.0
51.4
42.0
35.6

(3) Isat Amperes peak for approximately 20% rolloff (@20°C)
(4) Isat Amperes peak for approximately 30% rolloff (@20°C)
(5) K-factor: Used to determine B p-p for core loss (see graph).
B p-p = K*L*ΔI, B p-p: (Gauss), K: (K factor from table), L: (Inductance in uH),
ΔI (Peak to peak ripple current in Amps).

Mechanical Diagrams
TOP VIEW

FRONT VIEW

BOTTOM VIEW
9.0
max

HCPT1309-xxx
wwllyy R

13.2 sq
MAX

1

2
3.5 +/- 0.5

"B" +/- 1.0

"A " MAX

"C" typ

SCHEMATIC

Dimension Table
Part No

"A "

"B"

HCPT1309-R20
HCPT1309-R47
HCPT1309-1R0
HCPT1309-1R5
HCPT1309-2R2
HCPT1309-3R3

14.0
14.0
13.7
13.5
13.5
13.5

12.2
12.2
12.0
11.8
11.8
11.8

RECOMMENDED PCB PAD LAYOUT

"C"

"D"

1.63
1.63
1.29
1.15
1.15
1.15

2.13
2.13
1.6
1.40
1.40
1.40

"B" +/- 1.0

ØD

1

2

Dimensions are in millimeters.
wwllyy = Date Code. R = Revision Level.

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HCPT1309 Series
Power Inductors
Core Loss
Core Loss vs. B p-p

160.00

140.00

200kHz
300kHz
400kHz
500kHz
600kHz
700kHz
800kH
900kHz
1.0MHz

100.00

80.00

60.00

HIGH CURRENT (HCPT1309)

Core Loss (mW)

120.00

40.00

20.00

0.00
250

500

750

1000

1250

1500

1750

2000

2250

2500

2750

B p-p (Gauss)

Inductance Characteristics
OCL vs Isat

100
90
80

OCL (%)

70
60
50
40
30
20
10
0
0

20

40

60

80

100

120

140

160

% of Isat

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HIGH CURRENT (CPL)

CPL Series
Multi-Phase
Power Inductors
Description
• Designed exclusively for use with Volterra
VPR-Devices(A)
• High current multi-phase inductor applications
• Ferrite core material
• 50nH per phase coupled inductor
• 125°C maximum temperature operation
• Frequency range up to 2MHz
• Patents pending
• For tape and reel parts add TR after part number:
CPL-x-xxTR-R
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating temperature range: -40°C to +125°C
(range is application specific)
• Solder reflow temperature: +260°C max. for
10 seconds maximum

RoHS
2002/95/EC

Packaging
• Supplied in bulk trays or tape and reel:
CPL-2-50-R: 120 per tray CPL-2-50TR-R: 750 per reel
CPL-3-50-R: 90 per tray
CPL-3-50TR-R: 750 per reel
CPL-4-50-R: 75 per tray
CPL-4-50TR-R: 750 per reel
CPL-5-50-R: 60 per tray
CPL-5-50TR-R: 750 per reel
CPL-6-50-R: 45 per tray
CPL-6-50TR-R: 750 per reel

Functional Specifications
DCR (Ω) DCR (Ω)
Rated (3)
I Rated
Inductance nom. @ max. @
Inductance
per phase
Part Number
Phases
25°C
25°C per phase (nH) (Adc) (3)
CPL-2-50-R
2
0.0005 0.0006
50 ± 20%
40
CPL-3-50-R
3
0.0005 0.0006
50 ± 20%
40
CPL-4-50-R
4
0.0005 0.0006
50 ± 20%
40
CPL-5-50-R
5
0.0005 0.0006
50 ± 20%
40
CPL-6-50-R

6

0.0005

0.0006

50 ± 20%

40

(1) OCL (Open Circuit Inductance)
(2) Test parameters: 1MHz, 0.1Vrms, 0.0Adc.
(3) The rated current and rated inductance per phase is determined by Volterra’s
testing and circuit design. Additional information can be provided by contacting
Volterra.

Test Specifications

Pin Number
(1-2)
(3-4)
(3-4), (5-6)
(3-4), (5-6),
(7-8)
(3-4), 5-6),
(7-8), (9-10)

OCL (nH)
notes 1&2
365 ± 18%
490 ± 20%
490 ± 20%
490 ± 20%

Magnetizing
OCL (nH)
Inductance
Pin Number notes 1&2 @ 5Adc (25°C)
(3-4)
365 ± 18%
300
(1-2), (5-6) 365 ± 18%
400
(1-2), (7-8) 365 ± 18%
400
(1-2), (9-10) 365 ± 18%
400

490 ± 20%

(1-2), (11-12) 365 ± 18%

400

(A) This device is licensed for use only when incorporated within a voltage regulator
employing power regulating devices manufactured by Volterra Semiconductor
Corp. No license is granted expressly or by implication to use this device with
power regulating devices manufactured by any company other than Volterra.

Mechanical Diagrams

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CPL Series
Multi-Phase
Power Inductors
Mechanical Diagrams

HIGH CURRENT (CPL)

Dimensions are in millimeters. All dimensions +/-0.2 mm unless otherwise specified.

wwllyy = (date code) R = revision level

Schematic/PCB Layout

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CPL Series
Multi-Phase
Power Inductors

HIGH CURRENT (CPL)

Schematic/PCB Layout

Dimensions are in millimeters. All dimensions +/-0.2 mm unless otherwise specified.

Packaging Information (Tape and Reel)

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CPL Series
Multi-Phase
Power Inductors
Packaging Information (Tape and Reel)

HIGH CURRENT (CPL)

Packaging Information (Bulk Tray)

Notes:
Material: 0.8 PVC with internal Anti-Stat
Tolerances: x.xx = ± 0.20, x.x = ± 0.50, x = ± 2.0 unless otherwise specified.
Trays are stackable when rotated 180°.
All dimensions are in mm.

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DR1030 Series
Low Profile Power Inductors
Description
RoHS
2002/95/EC
• 125°C maximum total temperature operation
• Low profile surface mount inductors
• 10.3mm x 10.5mm x 3.0mm shielded drum core
• Ferrite core material
• Inductance range from 1.1μH to 150μH
• Current range from 9.5 Amps to 0.68 Amps
• Frequency range up to 1MHz
Applications
• Computer, DVD players, and portable power devices
• Notebook power, LCD panels
• DC-DC converters
• Input/output filter, Buck/Boost regulators
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating temperature range: -40°C to +125°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
maximum

SHIELDED DRUM (DR1030)

Part Number

DR1030-1R1-R
DR1030-1R8-R
DR1030-2R8-R
DR1030-3R9-R
DR1030-5R2-R
DR1030-6R8-R
DR1030-8R2-R
DR1030-100-R
DR1030-150-R
DR1030-220-R
DR1030-330-R
DR1030-470-R
DR1030-680-R
DR1030-820-R
DR1030-101-R
DR1030-121-R
DR1030-151-R

Rated
Inductance
(μH)
1.1
1.8
2.8
3.9
5.2
6.8
8.2
10
15
22
33
47
68
82
100
120
150

Packaging
• Supplied in tape and reel packaging,
1000 parts per reel

OCL (1)
μH ± 30%

Irms (2)
Amperes

Isat (3)
Amperes

1.1
1.9
2.8
4.0
5.2
6.8
8.4
10.4
14.8
22.8
32.4
47.9
66.6
82.4
100
119.3
155.3

7.0
5.9
5.1
4.3
3.7
3.5
3.3
2.8
2.3
1.8
1.6
1.3
1.1
1.0
0.86
0.8
0.68

9.50
7.41
6.08
5.13
4.75
3.90
3.54
3.18
2.66
2.19
1.81
1.52
1.24
1.14
1.05
0.95
0.86

(1) Open Circuit Inductance Test Parameters: 100kHz, 0.1V, 0.0Adc.
(2) Irms: DC current for an approximate ΔT of 40°C without core loss. Derating is
necessary for AC currents. PCB layout, trace thickness and width, air-flow, and
proximity of other heat generating components will affect the temperature rise. It
is recommended that the temperature of the part not exceed 125°C under worst
case operating conditions verified in the end application.

DCR
mΩ@20°C
(Typical)
6.5
9.1
12.1
16.4
22.9
24.9
28.4
40.2
57.3
95.5
113.6
166.6
253.1
332.4
375.0
523.4
590.0

DCR
mΩ@20°C
(Maximum)
7.9
11.0
14.5
20.0
27.5
30.0
34.1
48.0
68.8
114.6
136.3
200.0
303.7
382.3
450.0
602.0
700

K-factor
(4)
22
17
14
12
10
9.0
8.0
7.0
6.0
4.5
4
3.4
2.9
2.6
2.4
1.9
1.4

(3) Isat Amperes peak for approximately 35% rolloff max. (@25°C)
(4) K-factor: Used to determine B p-p for core loss (see graph).
B p-p = K*L*ΔI, B p-p(mT), K: (K factor from table), L: (Inductance in uH),
ΔI (Peak to peak ripple current in Amps).
(5) Part Number definition: DR1030-xxx-R
DR1030 = Product code and size, xxx = Inductance value in μH, R = decimal
point. If no R is present third character = # of zeros. -R suffix = RoHS compliant

PM-56

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DR1030 Series
Low Profile Power Inductors
Mechanical Diagrams
BOTTOM VIEW

TOP VIEW

FRONT VIEW

1

3.3

3.0 max.

1.2

XX X
wwlly R

SCHEMA TIC

RECOMMENDED PCB LAYOUT

3.0

10.3 max.

1
1.6

7.7

10.5 max.

LEFT VIEW
7.3

2

2
Dimensions are in millimeters.
XXX = Inductance in μH. R = decimal point. If no R is present third character = #of zeros.
wwlly = Date Code. R = Revision Level.

4.0

Packaging Information

1.5 dia
+0.1/-0.0

2.0

1.5 dia
min

0.35
+/-0.05

A
1.75

0.3Rad
max.

12.0

Ao=10.8 mm

Bo

Bo=11.0 mm

B1

24.0
+/-0.3

XX X
wwlly R

A1=10.5 mm
B1=10.7 mm
Ko=3.2 mm

Ko

A1
16.0

Ao

SECTION A-A

A

0.5 rad
typ

User direction of feed

SHIELDED DRUM (DR1030)

Core Loss

10
500kHz
1MHz

1

300kHz
200kHz
100kHz

Core Loss (W)

0.1
0.01
0.001
0.0001
1

10

100

1000

Bp-p (mT)

PM-57

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DR1030 Series
Low Profile Power Inductors
Temperature Rise vs. Total Loss
160

Temperature Rise (°C)

140
120
100
80
60
40
20
0
0.00

0.20

0.40

0.60

0.80

1.00

80.0%

100.0%

1.20

Total Loss (W)

Inductance Characteristics
OCL vs. ISAT
120.0%

SHIELDED DRUM (DR1030)

100.0%

% of OCL

80.0%

60.0%

40.0%

20.0%

0.0%
0.0%

-40 Deg. C
+25 Deg. C
+85 Deg. C

20.0%

40.0%

60.0%

120.0%

% of ISAT

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DR1040 Series
Low Profile Power Inductors
Description
RoHS
2002/95/EC
• 125°C maximum total temperature operation
• Low profile surface mount inductor
• 10.3mm x 10.5mm x 4.0mm shielded drum core
• Ferrite core material
• Inductance range from 1.5μH to 330μH
• Current range from 10.0 Amps to 0.52 Amps
• Frequency range up to 1MHz
Applications
• Notebook power, Portable devices
• Wireless modems, ADSL line cards
• Point of load power supplies
• Battery chargers, Video Cards
• MP3 player, PDA’s, DVD players
• LED driver for notebook computer
• Navigation system, LCD backlighting
• Buck, Boost, or Forward inductor
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating temperature range: -40°C to +125°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
maximum
Part Number

OCL (1)
μH±30%

Irms(2)
Amperes

Isat (3)
Amperes

1.4
2.4
3.6
5.2
6.8
8.1
9.6
14.9
21.1
32.6
45.8
65.3
86.8
101.4
148.3
216.2
323.4

6.50
6.10
5.50
5.40
4.50
3.98
3.80
3.10
2.50
2.20
1.90
1.42
1.29
1.25
0.85
0.70
0.52

10.00
7.80
6.40
5.50
4.80
4.60
4.40
3.60
2.90
2.45
2.10
1.65
1.47
1.35
1.15
0.92
0.70

(1) Open Circuit Inductance Test Parameters: 100kHz, 0.25V, 0.0Adc.
(2) Irms: DC current for an approximate ΔT of 30°C without core loss. Derating is
necessary for AC currents. PCB layout, trace thickness and width, air-flow, and
proximity of other heat generating components will affect the temperature rise. It
is recommended that the temperature of the part not exceed 125°C under worst
case operating conditions verified in the end application.
(3) Isat Amperes peak for approximately 35% rolloff (@25°C)

DCR (Ω)
mΩ @20°C
(Typical)
6.0
7.0
9.6
14.0
17.0
24.0
26.0
37.0
54.0
69.0
95.0
152
214
225
356
530
810

DCR (Ω)
mΩ @20°C
(Maximum)
8.1
9.0
13.0
17.0
20.0
29.0
35.0
50.0
73.0
93.0
128
183
260
304
430
640
1090

K-factor
(4)
15.48
12.04
9.85
8.33
7.22
6.37
5.70
4.71
4.01
3.28
2.78
2.30
2.04
1.90
1.57
1.27
1.03

SHIELDED DRUM (DR1040)

DR1040-1R5-R
DR1040-2R5-R
DR1040-3R8-R
DR1040-5R2-R
DR1040-7R0-R
DR1040-8R2-R
DR1040-100-R
DR1040-150-R
DR1040-220-R
DR1040-330-R
DR1040-470-R
DR1040-680-R
DR1040-820-R
DR1040-101-R
DR1040-151-R
DR1040-221-R
DR1040-331-R

Rated
Inductance
(μH)
1.5
2.5
3.8
5.2
7.0
8.2
10
15
22
33
47
68
82
100
150
220
330

Packaging
• Supplied in tape and reel packaging, 850 per reel

(4) K-factor: Used to determine B p-p for core loss (see graph).
B p-p = K*L*ΔI, B p-p(mT), K: (K factor from table), L: (Inductance in μH),
ΔI (Peak to peak ripple current in Amps).
(5) Part Number Definition: DR1040-xxx-R
DR1040 = Product code and size; -xxx = Inductance value in uH;
R = decimal point; If no R is present, third character = # of zeros.
-R suffix = RoHS compliant

PM-59

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

DR1040 Series
Low Profile Power Inductors
Mechanical Diagrams
TOP VIEW

SIDE VIEW

RECOMMENDED PCB LAYOUT

BOTTOM VIEW

10.5 max

3.0
+/- 0.1

4.0 max

1

XX X
wwll y R

2

1

10.3 max

1.6
2 plcs

2
3.2
2 plcs

1.2 +/- 0.15
(2 Pcs)

SCHEMATI C

1

2

10.5 Ref

7.7
+/- 0.3

Dimensions are in millimeters.
xxx = Inductance value in uH. R = decimal point. If no R is present third character = # of zeros. wwllyy = Date code, R = Revision level.

Packaging Information
1.5 dia
+0.1/-0.0

1.5 dia
min

4.0
2.0

A
1.75

12.0
Bo

B1

Ko

24.0
+/-0.3

XXX
wwlly R

A1
16.0

Ao

SECTION A-A

Bo=11.0 mm

User direction of feed

A1=10.6 mm
B1=10.5 mm

Parts packaged on 13" Diameter reel,
850 parts per reel.

Ko=4.2 mm

Core Loss
1MHz 500kHz
300kHz
200kHz

10

100kHz
1

Core Loss (W)

SHIELDED DRUM (DR1040)

A

Ao=10.8 mm

0. 1

0. 01

0. 001
1

10

100

1000

Bp-p (mT)

PM-60

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DR1040 Series
Low Profile Power Inductors
Temperature Rise vs. Loss

Temperature Rise(°C)

120
100
80
60
40
20
0
0

0.2

0.4

0.6

0.8

1

1.2

Total Loss (W)

Inductance Characteristics
OCL vs. Isat
120.0%

100.0%

SHIELDED DRUM (DR1040)

% of OCL

80.0%

60.0%

40.0%

-40 Deg.C
+25 Deg.C
+85 Deg.C

20.0%

0.0%
0.0%

20.0%

40.0%

60.0%

80.0%

100.0%

120.0%

140.0%

160.0%

% of Isat

PM-61

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DR1050 Series
Low Profile Power Inductors
Description
RoHS
2002/95/EC
• 125°C maximum total temperature operation
• Low profile surface mount inductor
• 10.3mm x 10.5mm x 5.0mm shielded drum core
• Ferrite core material
• Inductance range from 0.7μH to 1000μH
• Current range from 13.5 Amps to 0.43 Amps
• Frequency range up to 1MHz
Applications
• Computer, DVD players, and portable power devices
• Notebook power, LCD panels
• DC-DC converters
• Buck, boost, forward, and resonant converters
• Noise filtering and filter chokes
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating temperature range: -40°C to +125°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
maximum

SHIELDED DRUM (DR1050)

Part Number

DR1050-R80-R
DR1050-1R5-R
DR1050-2R2-R
DR1050-3R3-R
DR1050-4R7-R
DR1050-6R8-R
DR1050-8R2-R
DR1050-100-R
DR1050-120-R
DR1050-150-R
DR1050-180-R
DR1050-220-R
DR1050-270-R
DR1050-330-R
DR1050-390-R
DR1050-470-R
DR1050-560-R
DR1050-680-R
DR1050-820-R
DR1050-101-R
DR1050-121-R
DR1050-151-R
DR1050-181-R
DR1050-221-R
DR1050-271-R
DR1050-331-R
DR1050-391-R
DR1050-471-R
DR1050-561-R
DR1050-681-R
DR1050-821-R
DR1050-102-R

Rated
Inductance
(μH)
0.8
1.5
2.2
3.3
4.7
6.8
8.2
10
12
15
18
22
27
33
39
47
56
68
82
100
120
150
180
220
270
330
390
470
560
680
820
1000

Packaging
• Supplied in tape and reel packaging, 500 per reel

OCL (1)
μH±30%

Irms(2)
Amperes

Isat (3)
Amperes

0.70
1.37
2.27
3.21
4.43
6.30
8.09
10.1
11.6
14.8
17.5
23.5
26.9
34.3
38.3
47.1
56.7
67.2
84.4
97.5
118.3
149.2
183.7
221.8
263.5
320.6
396.5
480.5
572.6
707.9
818.7
1000.2

9.70
8.60
7.52
6.50
6.13
5.45
5.24
4.80
3.94
3.80
3.39
3.12
2.82
2.56
2.35
2.06
1.96
1.84
1.60
1.52
1.30
1.26
1.18
1.00
0.96
0.83
0.76
0.64
0.62
0.56
0.54
0.43

13.50
10.50
9.25
8.20
6.70
5.80
5.00
4.58
4.10
3.70
3.30
3.00
2.80
2.50
2.35
2.10
1.94
1.70
1.58
1.45
1.30
1.15
1.08
0.98
0.90
0.80
0.72
0.62
0.60
0.55
0.50
0.48

(1) Open Circuit Inductance Test Parameters: 100kHz, 0.1V, 0.0Adc.
(2) Irms: DC current for an approximate ΔT of 40°C without core loss. Derating is
necessary for AC currents. PCB layout, trace thickness and width, air-flow, and
proximity of other heat generating components will affect the temperature rise. It
is recommended that the temperature of the part not exceed 125°C under worst
case operating conditions verified in the end application.
(3) Isat Amperes peak for approximately 35% rolloff (@25°C)

DCR (Ω)
mΩ @20°C
(Typical)
3.2
4.0
5.6
8.0
9.5
13.0
15.1
18.0
24.3
26.0
32.8
38.7
42.6
57.5
60.7
89.0
98.0
111
147
164
223
238
273
377
410
554
648
855
970
1095
1185
1528

DCR (Ω)
mΩ @20°C
(Maximum)
4.0
5.0
6.8
10.0
11.9
16.5
19.0
22.5
30.4
32.5
41.0
48.4
53.3
71.9
75.9
111
123
139
184
205
279
298
341
472
513
693
810
1069
1213
1369
1481
1950

K-factor
(4)
20.47
14.62
11.37
9.30
7.87
6.82
6.02
5.39
4.87
4.45
4.09
3.53
3.30
2.92
2.77
2.50
2.27
2.09
1.86
1.73
1.57
1.40
1.26
1.15
1.06
0.96
0.86
0.78
0.72
0.64
0.60
0.54

(4) K-factor: Used to determine B p-p for core loss (see graph).
B p-p = K*L*ΔI, B p-p(mT), K: (K factor from table), L: (Inductance in μH),
ΔI (Peak to peak ripple current in Amps).
(5) Part Number Definition: DR1050-xxx-R
DR1050 = Product code and size; -xxx = Inductance value in uH;
R = decimal point; If no R is present, third character = # of zeros.
-R suffix = RoHS compliant

PM-62

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

DR1050 Series
Low Profile Power Inductors
Mechanical Diagrams
TOP VIEW

FRONT VIEW

BOTTOM VIEW

10.3 max.

3.0

1

RECOMMENDED PCB LAYOUT
3.3

5.0 max.

1.2

SCHEMATI C

1
1.6

XXX
wwlly R

10.5 max.

LEFT VIEW

7.7

7.3

2

2
Dimensions are in millimeters.
xxx = Inductance value in uH. R = decimal point. If no R is present third character = # of zeros. wwllyy = Date code, R = Revision level.

Packaging Information

1.5 dia
+0.1/-0.0

4.0
1.5 dia
min

2.0

A

1.75

12.0

Bo

B1

Ko

24.0
+/-0.3

XX X
wwlly R

A1
16.0

Ao

SECTION A-A

User direction of feed
Parts packaged on 13" Diameter reel,
500 parts per reel.

Core Loss

10
1MHz

Core Loss (W)

1

SHIELDED DRUM (DR1050)

Ao=10.8 mm
Bo=11.0 mm
A1=10.5 mm
B1=10.7 mm
Ko=5.3 mm

A

500kHzz300kHzz
200kHzz
100kHzz

0. 1

0. 01

0. 001

0. 0001
1

10

100

1000

Bp-p (mT)

PM-63

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DR1050 Series
Low Profile Power Inductors
Temperature Rise vs. Loss
Temperature Rise vs. Total Loss
160.00

Temperature Rise (°C)

140.00
120.00
100.00
80.00
60.00
40.00
20.00
0.00
0.00

0.20

0.40

0.60

0.80

1.00

1.20

Total Loss (W)

Inductance Characteristics

OCL vs. ISAT

120.0%

100.0%

% of OCL

SHIELDED DRUM (DR1050)

80.0%

60.0%

40.0%

-40 Deg. C
+25 Deg. C
+85 Deg. C

20.0%

0.0%
0%

20%

40%

60%

80%

100%

120%

140%

% of ISAT

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DR Series
High Power Density,
High Efficiency, Shielded Inductors
Description
RoHS
2002/95/EC
• 125°C maximum total temperature operation
• Four sizes of shielded drum core inductors
• Inductance range from 0.33uH to 1000uH
• Current range up to 56 Amps peak
• Magnetic shielding
• Secure mounting
• Ferrite core material
Applications
• Computer, DVD players, and portable power devices
• LCD panels
• DC-DC converters
• Buck, boost, forward, and resonant converters
• Noise filtering and filter chokes
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating ambient temperature range: -40°C to +125°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
max.
Part Number

OCL(1)
+/-20%
(μH)
0.306
0.992
1.482
2.070
3.540
4.422
6.480
8.930
10.30
15.01
22.65
34.41
48.62
68.91
80.37
101.4
150.9
223.3
325.5
465.8
676.5
821.7
995.0
0.294
0.952
1.422
1.986
3.396
5.182
7.344
8.566
9.882
16.09
21.73

Irms(2)
Amperes

(1) Open Circuit Inductance Test Parameters: 100KHz, 0.25Vrms, 0.0Adc.
(2) RMS current for an approximate ΔT of 40°C without core loss. It is recommended that the temperature of the part not exceed 125°C.
(3) Peak current for approximate 30% roll off at 20°C.

6.21
5.28
4.67
4.15
3.31
3.09
2.55
2.19
2.08
1.83
1.62
1.31
1.08
0.89
0.86
0.73
0.58
0.52
0.42
0.35
0.29
0.27
0.26
6.26
5.39
4.94
4.76
3.94
3.34
2.60
2.53
2.41
2.11
1.75

Isat(3)
Amperes
Peak
14.4
7.97
6.52
5.52
4.22
3.78
3.12
2.66
2.47
2.05
1.67
1.35
1.14
0.96
0.89
0.79
0.65
0.53
0.44
0.37
0.31
0.28
0.25
18.4
10.2
8.35
7.06
5.40
4.37
3.67
3.40
3.17
2.48
2.13

DCR(4)
(Ω)
Typ.
0.0073
0.0102
0.0130
0.0165
0.0259
0.0297
0.0435
0.0592
0.0656
0.0844
0.107
0.166
0.241
0.358
0.384
0.527
0.851
1.05
1.59
2.36
3.47
3.93
4.34
0.0074
0.0099
0.0118
0.0126
0.0183
0.0254
0.0418
0.0441
0.0489
0.0637
0.0925

Volt-uSec(5)
Typ.
1.98
3.56
4.36
5.15
6.73
7.52
9.11
10.7
11.5
13.9
17.0
21.0
24.9
29.7
32.1
36.0
44.0
53.5
64.5
77.2
93.1
103
113
1.71
3.08
3.76
4.45
5.81
7.18
8.55
9.23
9.92
12.7
14.7

SHIELDED DRUM (DR)

DR73-R33-R
DR73-1R0-R
DR73-1R5-R
DR73-2R2-R
DR73-3R3-R
DR73-4R7-R
DR73-6R8-R
DR73-8R2-R
DR73-100-R
DR73-150-R
DR73-220-R
DR73-330-R
DR73-470-R
DR73-680-R
DR73-820-R
DR73-101-R
DR73-151-R
DR73-221-R
DR73-331-R
DR73-471-R
DR73-681-R
DR73-821-R
DR73-102-R
DR74-R33-R
DR74-1R0-R
DR74-1R5-R
DR74-2R2-R
DR74-3R3-R
DR74-4R7-R
DR74-6R8-R
DR74-8R2-R
DR74-100-R
DR74-150-R
DR74-220-R

Rated
Inductance
(μH)
0.33
1.00
1.50
2.20
3.30
4.70
6.80
8.20
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100
150
220
330
470
680
820
1000
0.33
1.00
1.50
2.20
3.30
4.70
6.80
8.20
10.0
15.0
22.0

Packaging
• Supplied in tape and reel packaging, 1350 (DR73),
1100 (DR74), 600 (DR125), and 350 (DR127) per reel

(4) DCR limits @ 20°C.
(5) Applied Volt-Time product (V-μS) across the inductor. This value represent the
applied V-μS at 100KHz necessary to generate a core loss equal to 10% of the
total losses for 40°C temperature rise.

PM-65

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

DR Series
High Power Density,
High Efficiency, Shielded Inductors

SHIELDED DRUM (DR)

Part Number
DR74-330-R
DR74-470-R
DR74-680-R
DR74-820-R
DR74-101-R
DR74-151-R
DR74-221-R
DR74-331-R
DR74-471-R
DR74-681-R
DR74-821-R
DR74-102-R
DR125-R47-R
DR125-1R0-R
DR125-1R5-R
DR125-2R2-R
DR125-3R3-R
DR125-4R7-R
DR125-6R8-R
DR125-8R2-R
DR125-100-R
DR125-150-R
DR125-220-R
DR125-330-R
DR125-470-R
DR125-680-R
DR125-820-R
DR125-101-R
DR125-151-R
DR125-221-R
DR125-331-R
DR125-471-R
DR125-681-R
DR125-821-R
DR125-102-R
DR125-124-R
DR127-R47-R
DR127-1R0-R
DR127-1R5-R
DR127-2R2-R
DR127-3R3-R
DR127-4R7-R
DR127-6R8-R
DR127-8R2-R
DR127-100-R
DR127-150-R
DR127-220-R
DR127-330-R
DR127-470-R
DR127-680-R
DR127-820-R
DR127-101-R
DR127-151-R
DR127-221-R
DR127-331-R
DR127-471-R
DR127-681-R
DR127-821-R
DR127-102-R

Rated
Inductance
(μH)
33.0
47.0
68.0
82.0
100
150
220
330
470
680
820
1000
0.47
1.00
1.50
2.20
3.30
4.70
6.80
8.20
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100
150
220
330
470
680
820
1000
120000
0.47
1.00
1.50
2.20
3.30
4.70
6.80
8.20
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100
150
220
330
470
680
820
1000

OCL(1)
+/-20%
(μH)
33.01
49.64
69.67
80.95
101.6
150.0
227.0
335.6
465.3
671.2
812.7
1009
0.456
0.894
1.478
2.208
3.084
5.274
6.588
8.048
9.654
15.35
22.36
33.74
47.47
67.91
86.89
102.7
151.1
216.8
332.6
473.1
679.8
828.0
1008
120630
0.419
0.821
1.357
2.027
2.831
4.841
7.387
8.861
10.47
14.09
22.93
33.92
47.05
66.48
79.75
99.31
144.9
221.5
323.6
467.1
676.7
818.1
1005

Irms(2)
Amperes

(1) Open Circuit Inductance Test Parameters: 100KHz, 0.25Vrms, 0.0Adc.
(2) RMS current for an approximate ΔT of 40°C without core loss. It is recommended that the temperature of the part not exceed 125°C.
(3) Peak current for approximate 30% roll off at 20°C.

1.41
1.15
1.03
0.91
0.86
0.69
0.56
0.45
0.40
0.33
0.31
0.27
17.6
15.0
13.8
10.9
9.26
7.18
6.64
5.54
5.35
4.27
3.70
3.28
2.71
2.22
2.05
1.78
1.48
1.19
1.06
0.87
0.70
0.60
0.57
0.060
17.9
15.5
13.5
12.5
10.5
8.25
7.34
6.32
6.04
5.03
4.00
3.23
2.95
2.44
2.09
1.96
1.59
1.29
1.04
0.85
0.76
0.65
0.61

Isat(3)
Amperes
Peak
1.73
1.41
1.19
1.11
0.99
0.81
0.66
0.54
0.46
0.38
0.35
0.31
33.0
23.6
18.3
15.0
12.7
9.71
8.68
7.86
7.17
5.69
4.71
3.84
3.24
2.70
2.39
2.20
1.81
1.51
1.22
1.02
0.85
0.77
0.70
0.069
56.0
40.0
31.1
25.5
21.5
16.5
13.3
12.2
11.2
9.66
7.57
6.22
5.28
4.44
4.06
3.64
3.01
2.43
2.01
1.68
1.39
1.27
1.14

DCR(4)
(Ω)
Typ.
0.143
0.216
0.265
0.345
0.383
0.591
0.907
1.41
1.74
2.58
2.93
3.89
0.0018
0.0024
0.0029
0.0045
0.0063
0.0105
0.0123
0.0176
0.0189
0.0298
0.0396
0.0505
0.0740
0.101
0.128
0.170
0.248
0.384
0.482
0.718
1.10
1.49
1.69
150
0.00195
0.00313
0.00341
0.00402
0.00567
0.00917
0.0116
0.0157
0.0172
0.0247
0.0391
0.0600
0.0719
0.105
0.143
0.163
0.247
0.376
0.574
0.861
1.08
1.47
1.66

Volt-uSec(5)
Typ.
18.1
22.2
26.3
28.4
31.8
38.6
47.5
57.8
68.1
81.7
89.9
100
3.17
4.43
5.70
6.97
8.23
10.8
12.0
13.3
14.6
18.4
22.2
27.2
32.3
38.6
43.7
47.5
57.6
69.0
85.5
102
122
135
149
1521
3.50
4.90
6.30
7.70
9.10
11.9
14.7
16.1
17.5
20.3
25.9
31.5
37.1
44.1
48.3
53.9
65.1
80.5
97.3
117
141
155
172

(4) DCR limits @ 20°C.
(5) Applied Volt-Time product (V-μS) across the inductor. This value represent the
applied V-μS at 100KHz necessary to generate a core loss equal to 10% of the
total losses for 40°C temperature rise.

PM-66

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

DR Series
High Power Density,
High Efficiency, Shielded Inductors
Mechanical Diagrams
DR73 Series
BOTTOM VIEW
TOP VIEW

FRONT VIEW

6.0

RECOMMENDED PCB LAYOUT

7.6
Max

2.0

1

2.50

7.6 Max

3.55
Max

DR73
###

SCHEMATIC

3.25

2
8.50

1.13

DR74 Series
BOTTOM VIEW
RECOMMENDED PCB LAYOUT

TOP VIEW

FRONT VIEW
7.6
Max
7.6
Max

2.0

1

2.50

4.35
Max

DR74
###

SCHEMATIC

3.25

2

1.13

8.50

DR125 Series
FRONT VIEW

TOP VIEW
RECOMMENDED PCB LAYOUT

SCHEMATIC

13.80
1

4.90 1
Typ

2

12.50
Max

6.00
Max

1

DR125-###
wwllyy R

2

5.50
2

12.50
Max

SHIELDED DRUM (DR)

BOTTOM VIEW

2.05
Typ.

3.85

10

DR127 Series
BOTTOM VIEW

FRONT VIEW

RECOMMENDED PCB LAYOUT

TOP VIEW

2.05
Typ.

4.90
Typ

SCHEMATIC

13.80

1

2

10

Dimensions in Millimeters.

12.50
Max

8.00
Max

1

12.50
Max

DR127-###
wwllyy R

1

5.50
2

3.85

2

### = Inductance value per family chart
wwllyy = (date code) R = revision level

PM-67

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

DR Series
High Power Density,
High Efficiency, Shielded Inductors
Packaging Information
DR73 Series
Ø1.50 +0.1/-0.0
12.00

2.00 ±0.1

Ø1.50 Min.

A

4.00

1.75±0.10

1

7.50±0.1
DR73
xxy

Bo

16.00
±0.3

ACTUAL SIZE
DR73

2

A

Ao

Ko

Ao=7.90mm
Bo=7.90mm
Ko=3.80mm

User direction of feed

SECTION A-A

Parts packaged on 13" Diameter reel,
1,350 parts per reel.

DR74 Series
Ø1.50 +0.1/-0.0
12.00

2.00 ±0.1

Ø1.50 Min.

A

4.00

1.75±0.10

1

7.50±0.1
DR74
xxy

Bo

16.00
±0.3

ACTUAL SIZE
DR74

2

Ko

Ao=7.90mm
Bo=7.90mm
Ko=4.70mm

A

Ao

SECTION A-A

User direction of feed

Parts packaged on 13" Diameter reel,
1,100 parts per reel.

SHIELDED DRUM (DR)

DR125 Series
4.0
1.5 dia
+0.1/-0.0

2.0

1.5 dia
min

A
1.7

1

11.5
DR125-###
wwllyy R

B0

24.0
+/-0.3

ACTUAL SIZE
DR125

2

Ao=13.0mm
Bo=13.0mm
Ko=6.30mm

A0

K0

A

16.00

SECTION A-A

Parts packaged on 13" Diameter reel,
600 parts per reel.

User direction of feed

DR127 Series

4.0
1.5 dia
+0.1/-0.0

2.0

1.5 dia
min

A
1.7

1

11.5

Ao=13.0mm
Bo=13.0mm
Ko=8.30mm

DR127-###
wwllyy R

B0

24.0
+/-0.3

ACTUAL SIZE
DR127

2

A0
K0

SECTION A-A

20.00

A

User direction of feed

Parts packaged on 13" Diameter reel,
350 parts per reel.

Dimensions are in millimeters.

PM-68

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

DR Series
High Power Density,
High Efficiency, Shielded Inductors
Inductance Characteristics
OCL vs Isat DR74

OCL vs Isat DR73
100

100
90

80

80

60

OCL (%)

OCL (%)

70

50
40

60

40

30
20

20

10
0
0

20

40

60

80

100

120

140

0

160

0

% of Isat

20

40

60

100

120

140

160

180

OCL vs Isat DR127

OCL vs Isat DR125
100

100
90

90

80

80

70

70

60

60

OCL (%)

OCL (%)

80

% of Isat

50
40

50
40

30

30

20

20

10

10

0
0

10

20

30

40

50

60

70

80

90

100

110

120

130

140

0

150

0

10

20

30

40

50

60

% of Isat

70

80

90

100

110

120

130

140

150

% Idc sat

Core Loss
Irms DERATING WITH CORE LOSS
0
10

SHIELDED DRUM (DR)

30

60

70

z
KH

z

25

KH
50

Hz
0K
10

20
0K
Hz

80

30
0K
Hz

% of Losses from Irms (maximum)

50

90
92

94
95
96

97

98

99
10

20

30

40

60

80

100

200

300

400

600

800

1000

% of Applied Volt-μSecond

PM-69

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

DR124 Series
Low Profile Power Inductors
Description
RoHS
2002/95/EC
• 125°C maximum total temperature operation
• Low profile surface mount inductor
• 12.3mm x 12.3mm x 4.5mm shielded drum core
• Ferrite core material
• Inductance range from 0.47μH to 1000μH
• Current range from 24.4 Amps to 0.44 Amps
• Frequency range up to 1MHz
Applications
• Notebook power, LCD panels
• Computer, DVD players, and portable power devices
• DC-DC converters
• Buck, boost, forward, and resonant converters
• Noise filtering and filter chokes
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating temperature range: -40°C to +125°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
maximum

SHIELDED DRUM (DR124)

Part Number

DR124-R47-R
DR124-1R0-R
DR124-1R5-R
DR124-2R2-R
DR124-3R9-R
DR124-4R7-R
DR124-6R8-R
DR124-8R2-R
DR124-100-R
DR124-120-R
DR124-150-R
DR124-180-R
DR124-220-R
DR124-270-R
DR124-330-R
DR124-390-R
DR124-470-R
DR124-560-R
DR124-680-R
DR124-820-R
DR124-101-R
DR124-121-R
DR124-151-R
DR124-181-R
DR124-221-R
DR124-271-R
DR124-331-R
DR124-471-R
DR124-681-R
DR124-821-R
DR124-102-R

Rated
Inductance
(μH)
0.47
1.0
1.5
2.2
3.9
4.7
6.8
8.2
10
12
15
18
22
27
33
39
47
56
68
82
100
120
150
180
220
270
330
470
680
820
1000

Packaging
• Supplied in tape and reel packaging, 750 per reel

OCL (1)
μH±20%

Irms(2)
Amperes

Isat (3)
Amperes

0.42
0.83
1.37
2.04
3.80
4.88
6.10
7.45
8.94
11.5
14.2
16.2
20.7
25.7
31.2
37.3
44.0
54.9
67.1
80.5
95.1
111
146
179
216
256
327
460
669
825
998

16.0
13.9
11.1
9.1
7.0
6.5
5.6
5.2
4.5
4.1
3.6
3.4
3.2
2.8
2.6
2.3
2.2
2.0
1.8
1.7
1.5
1.3
1.3
1.1
1.0
0.88
0.83
0.68
0.56
0.53
0.44

24.40
18.00
14.00
11.45
8.40
7.65
6.47
6.22
5.80
4.96
4.62
4.32
3.83
3.44
3.12
2.85
2.63
2.35
2.13
1.94
1.79
1.65
1.44
1.30
1.15
1.09
0.92
0.74
0.65
0.62
0.53

(1) Open Circuit Inductance Test Parameters: 100kHz, 0.25V, 0.0Adc.
(2) Irms: DC current for an approximate ΔT of 40°C without core loss. Derating is
necessary for AC currents. PCB layout, trace thickness and width, air-flow, and
proximity of other heat generating components will affect the temperature rise. It
is recommended that the temperature of the part not exceed 125°C under worst
case operating conditions verified in the end application.
(3) Isat Amperes peak for approximately 25% rolloff (@25°C)

DCR (Ω)
mΩ @20°C
(Typical)
2.2
3.00
4.75
5.92
12.50
13.50
18.06
21.67
23.33
31.67
37.30
46.97
53.99
66.67
80.83
110.00
124.66
144.32
183.33
212.72
256.67
311.18
371.02
501.66
558.00
725.00
825.00
1242.50
1845.83
2109.17
2898.00

DCR (Ω)
mΩ @20°C
(Maximum)
2.7
3.6
5.7
7.1
15.0
16.2
21.7
26.0
28.0
38.0
44.8
56.4
64.8
80.0
97.0
132.0
149.6
173.2
220.0
255.3
308.0
373.4
445.2
602.0
669.6
870.0
990.0
1491.0
2215.0
2351.0
3477.00

K-factor
(4)
17.51
12.50
9.73
7.96
5.84
5.15
4.61
4.17
3.81
3.50
3.02
2.82
2.50
2.24
2.04
1.86
1.72
1.54
1.39
1.27
1.17
1.08
0.94
0.87
0.77
0.71
0.63
0.53
0.45
0.40
0.37

(4) K-factor: Used to determine B p-p for core loss (see graph).
B p-p = K*L*ΔI, B p-p(mT), K: (K factor from table), L: (Inductance in μH),
ΔI (Peak to peak ripple current in Amps).
(5) Part Number Definition: DR124-xxx-R
DR124 = Product code and size; -xxx = Inductance value in uH;
R = decimal point; If no R is present, third character = # of zeros.
-R suffix = RoHS compliant

PM-70

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

DR124 Series
Low Profile Power Inductors
Mechanical Diagrams
2.05
Typ.

BOTTOM VIEW

FRONT VIEW

SCHEMATIC

RECOMMENDED PCB LAYOUT

TOP VIEW

12.9
5.00 1
Typ

2

4.5
Max

12.30
Max

1
2

12.30
Max

DR124-###
wwllyy R

1

5.50
2

10

2.65

Dimensions are in millimeters.
wwlly = Date code, R = Revision level.

Packaging Information

1.5 dia
+0.1/-0.0

1.5 dia
min

A
1.75

4.0

11
12.6

Bo

B1

DR124-###
wwllyy R

A1
Ao

Ko

SECTION A-A

16.0

Ao=13.2 mm
Bo=13.2 mm
A1=10mm
B1=10 mm
Ko=5.2 mm

24.0

A

User direction of feed
Parts packaged on 13" Diameter reel,
750 parts per reel.

SHIELDED DRUM (DR124)

Core Loss
100

500kHz
1MHz

10

100kHz

1
Core Loss (W)

300kHz
200kHz

0.1

0.01

0.001

0.0001
1

10

100

1000

Bp-p (m T)

PM-71

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

DR124 Series
Low Profile Power Inductors
Temperature Rise vs. Loss

120

Temperature Rise (ºC)

100
80
60
40
20
0
0

0.4

0.8

1.2

1.6

2

Total Pow er Loss (W)

Inductance Characteristics

OCL Vs. Isat

120.0%
100.0%

% OCL

SHIELDED DRUM (DR124)

80.0%
60.0%
40.0%
20.0%
0.0%
0.0%

+85 Deg. C
+25 Deg. C
- 40 Deg. C

20.0%

40.0%

60.0%

80.0%

100.0%

120.0%

% Isat

PM-72

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

DRQ Series
Dual Winding, Shielded
Inductors/Transformer
Description
RoHS
2002/95/EC
• 125°C maximum total temperature operation
• Dual winding inductors that can be used as either
a single inductor, or in coupled inductor/transformer
applications (1:1 turns ratio)
• Four sizes of shielded drum core inductors
• Windings can be connected in series or parallel, offering
a broad range of inductance and current ratings
• Peak current ratings from 0.13 Amps to 56 Amps
• RMS current ratings from 0.128 Amps to 17.9 Amps
• Inductance ratings from 0.33μH to 4.02mH
• Surface Mount
• 200 VAC Isolation between windings
• Ferrite core material
Applications
• As a transformer: SEPIC, flyback
• As an inductor: Buck, boost, coupled inductor
• DC/DC converters
• VRM inductor for CPU and DDR power supplies
• Input and output filter chokes
Environmental Data
• Storage temperature: -40°C to +125°C
• Operating temperature: -40°C to +125°C (Range is
application specific).
• Solder reflow temperature: 260°C max. for 10 seconds
max.

Part Number

OCL (1)
+/-20%
(μH)
0.306
0.992
1.482
2.070
3.540
4.422
6.480
8.930
10.30
15.01
22.65
34.41
48.62
68.91
80.37
101.4
150.9
223.3
325.5
465.8
676.5
821.7
995.0

I rms (2)
Amperes
6.19
5.25
4.64
4.11
3.31
3.09
2.55
2.19
2.08
1.83
1.62
1.31
1.08
0.89
0.86
0.73
0.58
0.52
0.42
0.35
0.29
0.27
0.26

Parallel Ratings
I sat (3)
DCR Ω (4)
Amperes
typ.
Peak
14.4
0.0074
7.97
0.0103
6.52
0.0132
5.52
0.0167
4.22
0.0259
3.78
0.0297
3.12
0.0435
2.66
0.0592
2.47
0.0656
2.05
0.0844
1.67
0.107
1.35
0.166
1.14
0.241
0.96
0.358
0.89
0.384
0.79
0.527
0.65
0.851
0.53
1.05
0.44
1.59
0.37
2.36
0.31
3.47
0.28
3.93
0.25
4.34

1) Open Circuit Inductance Test Parameters: 100kHz, 0.25 Vrms, 0.0 Adc
Parallel: (1,2 - 4,2) Series: (1 - 4) tie (2 - 3)
2) RMS current for an approximate ΔT of 40°C without core loss. It is recommended that the temperature of the part not exceed 125°C.
3) Peak current for approximately 30% roll-off at 20°C

Volt (5)
μ-Sec
1.98
3.56
4.36
5.15
6.73
7.52
9.11
10.7
11.5
13.9
17.0
21.0
24.9
29.7
32.1
36.0
44.0
53.5
64.5
77.2
93.1
103
113

OCL (1)
+/-20%
(μH)
1.224
3.968
5.928
8.280
14.16
17.69
25.92
35.72
41.20
60.04
90.60
137.6
194.5
275.6
321.5
405.6
603.6
893.2
1302
1863
2706
3287
3980

I rms (2)
Amperes
3.10
2.63
2.32
2.06
1.66
1.55
1.28
1.10
1.04
0.916
0.811
0.653
0.542
0.444
0.430
0.367
0.289
0.260
0.211
0.173
0.143
0.134
0.128

Series Ratings
I sat (3)
DCR Ω (4)
Amperes
typ.
Peak
7.18
0.0296
3.99
0.0411
3.26
0.0527
2.76
0.0669
2.11
0.1035
1.89
0.1188
1.56
0.1742
1.33
0.2368
1.24
0.2623
1.03
0.339
0.83
0.429
0.68
0.665
0.57
0.965
0.48
1.43
0.44
1.54
0.39
2.11
0.32
3.41
0.27
4.20
0.22
6.36
0.18
9.44
0.15
13.88
0.14
15.72
0.13
17.36

Volt (5)
μ-Sec
3.96
7.12
8.72
10.3
13.5
15.0
18.2
21.4
23.0
27.8
34.0
42.0
49.8
59.4
64.2
72.0
88.0
107
129
154
186
206
226

SHIELDED DRUM (DRQ)

DRQ73-R33-R
DRQ73-1R0-R
DRQ73-1R5-R
DRQ73-2R2-R
DRQ73-3R3-R
DRQ73-4R7-R
DRQ73-6R8-R
DRQ73-8R2-R
DRQ73-100-R
DRQ73-150-R
DRQ73-220-R
DRQ73-330-R
DRQ73-470-R
DRQ73-680-R
DRQ73-820-R
DRQ73-101-R
DRQ73-151-R
DRQ73-221-R
DRQ73-331-R
DRQ73-471-R
DRQ73-681-R
DRQ73-821-R
DRQ73-102-R

Rated
Inductance
(μH)
0.33
1.00
1.50
2.20
3.30
4.70
6.80
8.20
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100
150
220
330
470
680
820
1000

Packaging
• Supplied in tape and reel packaging, 1350 (DRQ73),
1100 (DRQ74), 600 (DRQ125), and 350 (DRQ127)
per reel

4) DCR limits @ 20°C
5) Applied Volt-Time product (V-μS) across the inductor. This value represents the
applied V-μS at 100KHz necessary to generate a core loss equal to 10% of the
total losses for a 40°C temperature rise.
6) Turns Ratio (1-2):(3-4) 1:1

PM-73

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

DRQ Series
Dual Winding, Shielded
Inductors/Transformer

SHIELDED DRUM (DRQ)

Part Number

DRQ74-R33-R
DRQ74-1R0-R
DRQ74-1R5-R
DRQ74-2R2-R
DRQ74-3R3-R
DRQ74-4R7-R
DRQ74-6R8-R
DRQ74-8R2-R
DRQ74-100-R
DRQ74-150-R
DRQ74-220-R
DRQ74-330-R
DRQ74-470-R
DRQ74-680-R
DRQ74-820-R
DRQ74-101-R
DRQ74-151-R
DRQ74-221-R
DRQ74-331-R
DRQ74-471-R
DRQ74-681-R
DRQ74-821-R
DRQ74-102-R
DRQ125-R47-R
DRQ125-1R0-R
DRQ125-1R5-R
DRQ125-2R2-R
DRQ125-3R3-R
DRQ125-4R7-R
DRQ125-6R8-R
DRQ125-8R2-R
DRQ125-100-R
DRQ125-150-R
DRQ125-220-R
DRQ125-330-R
DRQ125-470-R
DRQ125-680-R
DRQ125-820-R
DRQ125-101-R
DRQ125-151-R
DRQ125-221-R
DRQ125-331-R
DRQ125-471-R
DRQ125-681-R
DRQ125-821-R
DRQ125-102-R

Rated
Inductance
(μH)
0.33
1.00
1.50
2.20
3.30
4.70
6.80
8.20
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100
150
220
330
470
680
820
1000
0.47
1.00
1.50
2.20
3.30
4.70
6.80
8.20
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100
150
220
330
470
680
820
1000

OCL (1)
+/-20%
(μH)
0.294
0.952
1.422
1.986
3.396
5.182
7.344
8.566
9.882
16.09
21.73
33.01
49.64
69.67
80.95
101.6
150.0
227.0
335.6
465.3
671.2
812.7
1009
0.456
0.894
1.478
2.208
3.084
5.274
6.588
8.048
9.654
15.35
22.36
33.74
47.47
67.91
86.89
102.7
151.1
216.8
332.6
473.1
679.8
828.0
1008

I rms (2)
Amperes
6.20
5.33
4.96
4.66
3.94
3.34
2.60
2.53
2.41
2.11
1.75
1.41
1.15
1.03
0.91
0.86
0.69
0.56
0.45
0.40
0.33
0.31
0.27
17.6
15.0
13.8
10.9
9.26
7.18
6.64
5.54
5.35
4.27
3.70
3.28
2.71
2.22
2.05
1.78
1.48
1.19
1.06
0.87
0.70
0.60
0.57

Parallel Ratings
I sat (3)
DCR Ω (4)
Amperes
typ.
Peak
18.4
0.0074
10.2
0.0100
8.35
0.0115
7.06
0.0130
5.40
0.0183
4.37
0.0254
3.67
0.0418
3.40
0.0441
3.17
0.0489
2.48
0.0637
2.13
0.0925
1.73
0.143
1.41
0.216
1.19
0.265
1.11
0.345
0.99
0.383
0.81
0.591
0.66
0.907
0.54
1.41
0.46
1.74
0.38
2.58
0.35
2.93
0.31
3.89
33.0
0.0018
23.6
0.0024
18.3
0.0029
15.0
0.0045
12.7
0.0063
9.71
0.0105
8.68
0.0123
7.86
0.0176
7.17
0.0189
5.69
0.0298
4.71
0.0396
3.84
0.0505
3.24
0.0740
2.70
0.101
2.39
0.128
2.20
0.170
1.81
0.248
1.51
0.384
1.22
0.482
1.02
0.718
0.85
1.10
0.77
1.49
0.70
1.69

1) Open Circuit Inductance Test Parameters: 100kHz, 0.25 Vrms, 0.0 Adc
Parallel: (1,2 - 4,2) Series: (1 - 4) tie (2 - 3)
2) RMS current for an approximate ΔT of 40°C without core loss. It is recommended that the temperature of the part not exceed 125°C.
3) Peak current for approximately 30% roll-off at 20°C

Volt (5)
μ-Sec
1.71
3.08
3.76
4.45
5.81
7.18
8.55
9.23
9.92
12.7
14.7
18.1
22.2
26.3
28.4
31.8
38.6
47.5
57.8
68.1
81.7
89.9
100
3.17
4.43
5.70
6.97
8.23
10.8
12.0
13.3
14.6
18.4
22.2
27.2
32.3
38.6
43.7
47.5
57.6
69.0
85.5
102
122
135
149

OCL (1)
+/-20%
(μH)
1.176
3.808
5.688
7.944
13.58
20.73
29.38
34.26
39.53
64.36
86.92
132.0
198.6
278.7
323.8
406.4
600.0
908.0
1342
1861
2685
3251
4036
1.824
3.576
5.912
8.832
12.34
21.10
26.35
32.19
38.62
61.40
89.44
135.0
189.9
271.6
347.6
410.8
604.4
867.2
1330
1892
2719
3312
4032

I rms (2)
Amperes
3.10
2.66
2.48
2.33
1.97
1.67
1.30
1.27
1.20
1.05
0.874
0.702
0.573
0.517
0.453
0.430
0.346
0.279
0.224
0.202
0.166
0.156
0.135
8.80
7.51
6.89
5.46
4.63
3.59
3.32
2.77
2.67
2.13
1.84
1.64
1.35
1.11
1.03
0.892
0.739
0.594
0.530
0.434
0.350
0.301
0.283

Series Ratings
I sat (3)
DCR Ω (4)
Amperes
typ.
Peak
9.18
0.0295
5.10
0.0400
4.17
0.0461
3.53
0.0521
2.70
0.0732
2.19
0.102
1.84
0.167
1.70
0.177
1.58
0.196
1.24
0.255
1.07
0.371
0.87
0.574
0.71
0.865
0.60
1.06
0.55
1.38
0.49
1.53
0.41
2.37
0.33
3.63
0.27
5.66
0.23
6.97
0.19
10.3
0.17
11.7
0.16
15.6
16.5
0.0078
11.8
0.0096
9.15
0.0114
7.50
0.0182
6.35
0.0253
4.86
0.0420
4.34
0.0492
3.93
0.0705
3.59
0.0757
2.85
0.120
2.36
0.159
1.92
0.203
1.62
0.297
1.35
0.440
1.20
0.515
1.10
0.682
0.905
0.991
0.755
1.54
0.610
1.93
0.510
2.87
0.425
4.42
0.385
5.96
0.350
6.76

Volt (5)
μ-Sec
3.42
6.16
7.52
8.9
11.6
14.4
17.1
18.5
19.8
25.4
29.4
36.2
44.4
52.6
56.8
63.6
77.2
95
116
136
163
180
200
6.34
8.86
11.40
13.9
16.5
21.6
24.0
26.6
29.2
36.8
44.4
54.4
64.6
77.2
87.4
95.0
115.2
138
171
204
244
270
298

4) DCR limits @ 20°C
5) Applied Volt-Time product (V-μS) across the inductor. This value represents the
applied V-μS at 100KHz necessary to generate a core loss equal to 10% of the
total losses for a 40°C temperature rise.
6) Turns Ratio (1-2):(3-4) 1:1

PM-74

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

DRQ Series
Dual Winding, Shielded
Inductors/Transformer

Part Number

DRQ127-R47-R
DRQ127-1R0-R
DRQ127-1R5-R
DRQ127-2R2-R
DRQ127-3R3-R
DRQ127-4R7-R
DRQ127-6R8-R
DRQ127-8R2-R
DRQ127-100-R
DRQ127-150-R
DRQ127-220-R
DRQ127-330-R
DRQ127-470-R
DRQ127-680-R
DRQ127-820-R
DRQ127-101-R
DRQ127-151-R
DRQ127-221-R
DRQ127-331-R
DRQ127-471-R
DRQ127-681-R
DRQ127-821-R
DRQ127-102-R

Rated
Inductance
(μH)
0.47
1.00
1.50
2.20
3.30
4.70
6.80
8.20
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100
150
220
330
470
680
820
1000

OCL (1)
+/-20%
(μH)
0.419
0.821
1.357
2.027
2.831
4.841
7.387
8.861
10.47
14.09
22.93
33.92
47.05
66.48
79.75
99.31
144.9
221.5
323.6
467.1
676.7
818.1
1005

I rms (2)
Amperes
17.9
15.5
13.5
12.5
10.4
8.25
7.34
6.32
6.04
5.03
4.00
3.23
2.95
2.44
2.09
1.96
1.59
1.29
1.04
0.85
0.76
0.65
0.61

Parallel Ratings
I sat (3)
DCR Ω (4)
Amperes
typ.
Peak
56.0
0.00195
40.0
0.00261
31.1
0.00341
25.5
0.00373
21.5
0.00567
16.5
0.00917
13.3
0.0116
12.2
0.0157
11.2
0.0172
9.66
0.0247
7.57
0.0391
6.22
0.0600
5.28
0.0719
4.44
0.105
4.06
0.143
3.64
0.163
3.01
0.247
2.43
0.376
2.01
0.574
1.68
0.861
1.39
1.08
1.27
1.47
1.14
1.66

3.50
4.90
6.30
7.70
9.10
11.9
14.7
16.1
17.5
20.3
25.9
31.5
37.1
44.1
48.3
53.9
65.1
80.5
97.3
117
141
155
172

OCL (1)
+/-20%
(μH)
1.676
3.284
5.428
8.108
11.32
19.36
29.55
35.44
41.88
56.36
91.72
135.7
188.2
265.9
319.0
397.2
579.6
886.0
1294
1868
2707
3272
4020

I rms (2)
Amperes
8.94
7.74
6.77
6.23
5.23
4.13
3.67
3.16
3.02
2.51
2.00
1.61
1.47
1.22
1.04
0.980
0.796
0.645
0.522
0.427
0.380
0.325
0.307

Series Ratings
I sat (3)
DCR Ω (4)
Amperes
typ.
Peak
28
0.0078
20
0.0104
15.6
0.0137
12.7
0.0161
10.8
0.0229
8.24
0.0367
6.67
0.0465
6.09
0.0627
5.60
0.0686
4.83
0.0990
3.78
0.157
3.11
0.241
2.64
0.288
2.22
0.421
2.03
0.573
1.82
0.653
1.51
0.989
1.22
1.50
1.01
2.30
0.838
3.44
0.697
4.32
0.633
5.88
0.571
6.64

Volt (5)
μ-Sec
7.00
9.80
12.60
15.4
18.2
23.8
29.4
32.2
35.0
40.6
51.8
63.0
74.2
88.2
96.6
107.8
130.2
161
195
234
282
310
344

4) DCR limits @ 20°C
5) Applied Volt-Time product (V-μS) across the inductor. This value represents the
applied V-μS at 100KHz necessary to generate a core loss equal to 10% of the
total losses for a 40°C temperature rise.
6) Turns Ratio (1-2):(3-4) 1:1

SHIELDED DRUM (DRQ)

1) Open Circuit Inductance Test Parameters: 100kHz, 0.25 Vrms, 0.0 Adc
Parallel: (1,2 - 4,2) Series: (1 - 4) tie (2 - 3)
2) RMS current for an approximate ΔT of 40°C without core loss. It is recommended that the temperature of the part not exceed 125°C.
3) Peak current for approximately 30% roll-off at 20°C

Volt (5)
μ-Sec

PM-75

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

DRQ Series
Dual Winding, Shielded
Inductors/Transformer
Mechanical Diagrams
DRQ73 Series

BOTTOM VIEW

FRONT VIEW

RECOMMENDED PCB LAYOUT

TOP VIEW

6.1
0.73

1.73
1.00

0.60
7.6
Max.

1.00

0.40

0.40

•

7.6
Max.

DRQ73
###
1.73

0.80

3.55 Max

7.9

7.9

Dual Inductor Mode

Series Mode

SCHEMATIC
Dual Inductor
1

Series Mode
2

L1

1

L2

1

2

L1
4

3

Parallel Mode

L2

2

L1

3

4

L2

3

4

SHIELDED DRUM (DRQ)

DRQ74 Series

BOTTOM VIEW
FRONT VIEW

RECOMMENDED PCB LAYOUT

TOP VIEW

0.73
1.73
1.00

7.6
Max

0.60

1.00

0.40

0.40

•
DRQ74
###

7.6
Max

1.73
7.9

6.1

7.9

Dual Inductor Mode

4.45
Max

Series Mode

SCHEMATIC
Dual Inductor
1

2

L1
3

Dimensions in Millimeters.

Parallel Mode

Series Mode
1

L2

L1
4

3

2

1

4

3

2

L1

L2

L2
4

### = Inductance value per family chart
Dot indicates pin #1

PM-76

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

DRQ Series
Dual Winding, Shielded
Inductors/Transformer
Mechanical Diagrams
DRQ125 Series

BOTTOM VIEW

FRONT VI EW

2.05

RECOMMENDED PCB LAYOUT

TOP VIEW

3.85
2.00 2

3

1

4

0.50

3.85

•

12.5
Max

12.5
Max

1
2

DRQ125
###
wwlly y R

1

4

2.50

3

4

2

3

2.50

1

4

2

3

0.50
10.0

13.80

13.80

Dual Inductor Mode

Series Mode

6.00 Max

SCHEMATIC

1

L1

2

1

4

3

L2

3

Parallel Mode

Series Mode

Dual Inductor

L1

2

1

4

3

2

L1

L2

L2
4

DRQ127 Series

FRONT VIEW

2.05

TOP VIEW

RECOMMENDED PCB LAYOUT

3

1

4

12.5
Max

•

12.5
Max

1
2

DRQ127
###
wwll yy R

0.50

3.85

3.85
2.00 2

SHIELDED DRUM (DRQ)

BOTTOM VIEW

4

2.50

2.50

3

1

4

2

3

0.50
10.0

8.0
Max

13.80

13.80

Dual Inductor Mode

Series Mode

SCHEMATIC
Dual Inductor
1

L1
3

Dimensions in Millimeters.

Series Mode
2

1

L2

L1
4

3

Parallel Mode
2

2

1

L2

L1
4

3

L2
4

### = Inductance value per family chart
wwllyy = (date code) R = revision level
Dot indicates pin #1

PM-77

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

DRQ Series
Dual Winding, Shielded
Inductors/Transformer
Packaging Information
DRQ73 Series

ACTUAL SIZE
DRQ73

Ao=7.90mm
Bo=7.90mm
Ko=3.80mm

Direction of Feed

➞

Parts packaged on 13" Diameter reel,
1,350 parts per reel.

DRQ74 Series
Ø1.50 +0.1/-0.0
2.00 ±0.1

Ø1.50 Min.

4.00

A

1.75±0.10

1

2

7.50±0.1
DRQ74
###

B
Bo

4

3

Direction of Feed

12.00
0

Ao

➞

Parts packaged on 13" Diameter reel,
1,100 parts per reel.

SECTION A-A

DRQ125 Series
4.0
1.5 dia
+0.1/-0.0

2.0

1.5 dia
min

A
1.7

1

2

11.5
•

B
B0

ACTUAL SIZE
DRQ125

4

3

Ao=13.00mm
Bo=13.00mm
Ko=6.30mm

24.0
+/-0.3
0

DRQ125
###
wwllyy

SHIELDED DRUM (DRQ)

ACTUAL SIZE
DRQ74

A

Ko

Ao=7.90mm
Bo=7.90mm
Ko=4.70mm

16.00
±0.3
0

K0
A0

Direction of Feed

A

16.00

SECTION A-A

➞

Parts packaged on 13" Diameter reel,
600 parts per reel.

DRQ127 Series

4.0
1.5 dia
+0.1/-0.0

2.0

1.5 dia
min

A
1.7

R0.3 max.
1

2

11.5
.

ACTUAL SIZE
DRQ127

4

3

Ao=13.00mm
Bo=13.00mm
Ko=8.30mm

24.0
+/-0.3
0

DRQ127
###
wwllyy

B
B0

Direction of Feed
K0
A0

SECTION A-A

20.00

A
R0.5 TYP.

➞

Parts packaged on 13" Diameter reel,
350 parts per reel.

Dimensions are in millimeters.

PM-78

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

DRQ Series
Dual Winding, Shielded
Inductors/Transformer
Inductance Characteristics
OCL vs Isat DRQ73

OCL vs Isat DRQ74
100

100
90

80

80

OCL (%)

OCL (%)

70
60
50
40

60

40

30
20

20

10
0
0

20

40

60

80

100

120

140

0

160

0

20

40

60

80

% of Isat

120

140

160

180

OCL vs Isat DRQ127

OCL vs Isat DRQ125
100

100

90

90

80

80

70

70

OCL (%)

OCL (%)

100

% of Isat

60
50

60
50

40

40

30

30

20

20

10

10

0
0

10

20

30

40

50

60

70

80

90

100

110

120

130

140

0

150

0

10

20

30

% of Isat

Core Loss

40

50

60

70

80

90

100

110

120

130

140

150

% Idc sat

z
KH
25

KH
z
50

Hz
0K
10

Hz

0K
Hz
20

30
0K

% of A
pplied

SHIELDED DRUM (DRQ)

% of Losses from Irms (maximum)

Irms DERATING WITH CORE LOSS

olt-μS
V econd

PM-79

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

LDS0705 Series
Shielded Power Inductors
Description
RoHS
2002/95/EC
• 125°C maximum temperature operation
• 7.8mm x 7.0mm x 5.0mm shielded drum core
• Ferrite core material
• Metalized core mounting utilizes board space
• Inductance range from 0.82μH to 470μH
• Current range from 8.57 Amps to 0.368 Amps
• Frequency range up to 1MHz
Applications
• Buck or Boost Inductor
• Noise filtering and output filter chokes
• Battery Power, DC-DC converters
• Notebook power, PDA’s, Hand held computers
• DVD players
• Cellular phones
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating temperature range: -40°C to +125°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
maximum

SHIELDED DRUM (LDS0705)

Part Number

LDS0705-R82M-R
LDS0705-1R5M-R
LDS0705-2R2M-R
LDS0705-3R3M-R
LDS0705-4R7M-R
LDS0705-6R8M-R
LDS0705-8R2M-R
LDS0705-100M-R
LDS0705-150M-R
LDS0705-220M-R
LDS0705-330M-R
LDS0705-470M-R
LDS0705-680M-R
LDS0705-820M-R
LDS0705-101M-R
LDS0705-151M-R
LDS0705-221M-R
LDS0705-331M-R
LDS0705-471M-R

Rated
Inductance
(μH)
0.82
1.5
2.2
3.3
4.7
6.8
8.2
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100.0
150.0
220.0
330.0
470.0

Packaging
• Supplied in tape and reel packaging, 1000 per reel

OCL (1)
μH

Irms(2)
Amperes

Isat (3)
Amperes

0.861±20%
1.42±20%
2.13±20%
2.97±20%
5.08±20%
6.34±20%
7.75±20%
9.30±20%
14.78±20%
21.53±20%
32.50±20%
45.71±20%
69.76±20%
83.67±20%
98.9±20%
152.0±20%
216.5±20%
329.9±20%
467.0±20%

7.68
6.17
5.06
4.19
3.32
3.11
2.67
2.54
2.04
1.66
1.48
1.21
0.985
0.850
0.808
0.649
0.584
0.470
0.387

8.57
6.67
5.45
4.62
3.53
3.16
2.86
2.61
2.07
1.71
1.40
1.18
0.952
0.870
0.800
0.645
0.541
0.438
0.368

(1) Open Circuit Inductance Test Parameters: 100kHz, 0.1V, 0.0Adc.
(2) Irms: DC current for an approximate ΔT of 30°C without core loss. Derating is
necessary for AC currents. PCB layout, trace thickness and width, air-flow, and
proximity of other heat generating components will affect the temperature rise. It
is recommended that the temperature of the part not exceed 125°C under worst
case operating conditions verified in the end application.
(3) Isat Amperes peak for approximately 15% rolloff (@25°C)

DCR (Ω)
@20°C
(Typical)
0.0040
0.0061
0.009
0.013
0.021
0.024
0.033
0.036
0.056
0.084
0.107
0.158
0.240
0.323
0.357
0.554
0.68
1.06
1.56

K-factor
(4)
24.8
19.3
15.8
13.4
10.2
9.2
8.3
7.6
6.0
5.0
4.0
3.4
2.8
2.5
2.3
1.9
1.6
1.3
1.1

(4) K-factor: Used to determine B p-p for core loss (see graph).
B p-p = K*L*ΔI, B p-p(mT), K: (K factor from table), L: (Inductance in μH),
ΔI (Peak to peak ripple current in Amps).
(5) Part Number Definition: LDS0705-xxx-R
LDS0705 = Product code and size; -xxx = Inductance value in uH;
R = decimal point; If no R is present, third character = # of zeros.
M = Inductance tolerance +/- 20% -R suffix = RoHS compliant

PM-80

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

LDS0705 Series
Shielded Power Inductors
Mechanical Diagrams
SCHEMATIC

RECOMMENDED PCB LAYOUT

SIDE VIEW

BOTTOM VIEW

TOP VIEW

2.0

1

2.0 Typ.

XX X

7.0

5.0 Max.

7.0±0.2

wwllyy R

2

3.0

7.8±0.2

Dimensions are in millimeters.
xxx = Inductance in uH. R = decimal point. If no R is present third character = # of zeros.
wwllyy = Date code, R = Revision level.

Packaging Information

Parts packaged on 13" Diameter reel,
1,000 parts per reel.

Temperature Rise vs. Watt Loss
SHIELDED DRUM (LDS0705)

90
80
70

Temp. Rise (°C)

60
50
40
30
20
10
0
0

0.1

0.2

0.3

0.4

0.5
Total Loss (W)

0.6

0.7

0.8

0.9

1

PM-81

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LDS0705 Series
Shielded Power Inductors
Core Loss
100
1MHz
500kHz

10

300kHz
200kHz

1
Core Loss (W)

100kHz
50kHz
0.1

0.01

0.001

0.0001
1

10

100

1000

Bp-p (mT)

Inductance Characteristics

OCL vs. Isat

120%
110%
100%

SHIELDED DRUM (LDS0705)

90%

% of OCL

80%
-40

70%
60%

25

50%
40%
85
30%
20%
10%
0%
0%

20%

40%

60%

80%

100%

120%

140%

160%

180%

200%

% of Isat

PM-82

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SD3110 Series
Low Profile Power Inductors
Description
RoHS
2002/95/EC
• 125°C maximum total temperature operation
• 3.1mm x 3.1mm x 1.0mm shielded drum core
• Ferrite core material
• Inductance range from 0.5uH to 220uH
• Current range from 2.27 Amps to 0.106 Amps
• Frequency range up to 1MHz
Applications
• Cellular phones, Digital cameras, CD players, PDA’s
• Small LCD displays
• LED driver and LED flash circuits
• Hard disk drives
• Backlighting
• EL panel
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating temperature range: -40°C to +125°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
maximum
Part Number

SD3110-R50-R
SD3110-R82-R
SD3110-1R0-R
SD3110-1R5-R
SD3110-2R2-R
SD3110-3R3-R
SD3110-4R7-R
SD3110-6R8-R
SD3110-8R2-R
SD3110-100-R
SD3110-150-R
SD3110-220-R
SD3110-330-R
SD3110-470-R
SD3110-680-R
SD3110-820-R
SD3110-101-R
SD3110-151-R
SD3110-221-R

Rated
Inductance
(μH)
0.50
0.82
1.0
1.5
2.2
3.3
4.7
6.8
8.2
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100
150
220

OCL (1)
(μH)
0.44+/-30%
0.82+/-30%
1.05+/-30%
1.60+/-30%
2.27+/-30%
3.48+/-30%
4.96+/-30%
6.70+/-30%
8.01+/-30%
10.18+/-30%
15.32+/-20%
21.49+/-20%
32.72+/-20%
46.29+/-20%
68.04+/-20%
82.65+/-20%
101+/-20%
149+/-20%
219+/-20%

Part
Marking
Designator
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S

Irms (2)
Amperes

Isat (3)
Amperes

1.54
1.30
1.21
0.99
0.82
0.72
0.59
0.54
0.48
0.44
0.36
0.30
0.26
0.22
0.179
0.167
0.146
0.127
0.106

2.27
1.67
1.47
1.19
1.00
0.81
0.68
0.58
0.53
0.47
0.38
0.32
0.26
0.22
0.182
0.166
0.150
0.123
0.120

DCR (Ω)
typ. @
20°C
0.0420
0.0589
0.0683
0.103
0.149
0.195
0.285
0.346
0.432
0.505
0.764
1.13
1.50
2.06
3.13
3.57
4.72
6.16
9.46

K-factor
(4)
216
191
169
137
115
93
78
67
61
54
44
37
30
25
21
19
17
14
12

(3) Isat Amperes peak for approximately 30% rolloff (@20°C)
(4) K-factor: Used to determine B p-p for core loss (see graph).
B p-p = K*L*ΔI, B p-p(mT), K: (K factor from table), L: (Inductance in uH),
ΔI (Peak to peak ripple current in Amps).

PM-83

LOW PROFILE SHIELDED DRUM (SD3110)

(1) Open Circuit Inductance Test Parameters: 100kHz, 0.1V, 0.0Adc.
(2) Irms: DC current for an approximate DT of 40°C without core loss. Derating is
necessary for AC currents. PCB layout, trace thickness and width, air-flow, and
proximity of other heat generating components will affect the temperature rise. It
is recommended that the temperature of the part not exceed 125°C under worst
case operating conditions verified in the end application.

Packaging
• Supplied in tape and reel packaging, 4100 per reel

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD3110 Series
Low Profile Power Inductors
Mechanical Diagrams
Marking
0.6 typ.

3.1 max.

1.0
2 plcs
4.0 Max.

2.0 typ.

1.0 max

3.6 max

2.0
2 plcs
4.0

3.1 max.

1.0 typical

Dimensions are in millimeters.
Part Marking:
3 Digit Marking: (1st digit: Indicates inductance value per letter in Part Marking Designator); (2nd digit: Bi-weekly production date code); (3rd digit: Last digit of the year produced).
4.0

Packaging Information
8.0

2.0
1.75

4.2

5.5
Bo
3.2

B1

A1=0.90mm
Ao=3.9mm
Bo=3.6mm
B1=1.25mm
Ko=1.2mm

12.0
+/-0.3

3.2

Ko
A1

Parts packaged on 13" Diameter reel,
4,100 parts per reel.

Ao

Core Loss
10
1MHz

1

500kHz

LOW PROFILE SHIELDED DRUM (SD3110)

Core Loss (W)

0.1

300kHz
200kHz
100kHz

0.01

50kHz

0.001

0.0001

0.00001

0.000001
1

10

100

1000

Bp-p (mT)

PM-84

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SD3110 Series
Low Profile Power Inductors
Temperature Rise vs. Loss
100
90
80

Temp.Rise(°C)

70
60
50
40
30
20
10
0
0

0.04

0.08

0.12

0.16

0.2

0.24

0.28

0.32

0.36

Total Loss (W)

Inductance Characteristics

OCL Vs Isat

120%
110%
100%
90%

% of OCL

80%
70%

-40°C

60%
50%
+25°C

40%
30%

+85°C

20%
10%
0%
0%

10%

20%

30%

40%

50%

60%

70%

80%

90% 100% 110% 120% 130% 140%

% of Isat

LOW PROFILE SHIELDED DRUM (SD3110)

PM-85

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SD3112 Series
Low Profile Power Inductors
Description
RoHS
2002/95/EC
• 125°C maximum total temperature operation
• 3.1mm x 3.1mm x 1.2mm shielded drum core
• Ferrite core material
• Inductance range from 1.0uH to 220uH
• Current range from 1.65 Amps to 0.113 Amps
• Frequency range up to 4MHz
Applications
• Cellular phones, Digital cameras, CD players, PDA’s
• Small LCD displays
• LED driver and LED flash circuits
• Hard disk drives
• Backlighting
• EL panel
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating temperature range: -40°C to +125°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
maximum
Part Number

SD3112-1R0-R
SD3112-1R5-R
SD3112-2R2-R
SD3112-3R3-R
SD3112-4R7-R
SD3112-6R8-R
SD3112-8R2-R
SD3112-100-R
SD3112-150-R
SD3112-220-R
SD3112-330-R
SD3112-470-R
SD3112-680-R
SD3112-820-R
SD3112-101-R
SD3112-151-R
SD3112-221-R

Rated
Inductance
(μH)
1.0
1.5
2.2
3.3
4.7
6.8
8.2
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100.0
150.0
220.0

OCL (1)
(μH)
1.11+/-30%
1.70+/-30%
2.41+/-30%
3.24+/-30%
4.72+/-30%
6.47+/-30%
8.50+/-30%
10.01+/-30%
15.28+/-20%
21.66+/-20%
33.30+/-20%
47.44+/-20%
68.10+/-20%
83.19+/-20%
99.8+/-20%
149.4+/-20%
219.9+/-20%

Part
Marking
Designator
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q

LOW PROFILE SHIELDED DRUM (SD3112)

(1) Open Circuit Inductance Test Parameters: 100kHz, 0.1V, 0.0Adc.
(2) Irms: DC current for an approximate DT of 40°C without core loss. Derating is
necessary for AC currents. PCB layout, trace thickness and width, air-flow, and
proximity of other heat generating components will affect the temperature rise. It
is recommended that the temperature of the part not exceed 125°C under worst
case operating conditions verified in the end application.

Packaging
• Supplied in tape and reel packaging, 4100 per reel

Irms (2)
Amperes

Isat (3)
Amperes

1.39
1.16
0.97
0.90
0.74
0.68
0.57
0.55
0.45
0.37
0.30
0.270
0.228
0.213
0.184
0.149
0.121

1.65
1.33
1.12
0.97
0.80
0.68
0.60
0.55
0.44
0.37
0.30
0.25
0.211
0.190
0.174
0.142
0.117

DCR (Ω)
typ. @
20°C
0.069
0.099
0.140
0.165
0.246
0.291
0.408
0.446
0.654
0.953
1.48
1.85
2.56
2.93
3.95
6.01
9.12

K-factor
(4)
135
110
92
79
66
56
49
45
37
31
25
21
17
16
14
12
10

(3) Isat Amperes peak for approximately 30% rolloff (@20°C)
(4) K-factor: Used to determine B p-p for core loss (see graph).
B p-p = K*L*ΔI, B p-p(mT), K: (K factor from table), L: (Inductance in uH),
ΔI (Peak to peak ripple current in Amps).

PM-86

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SD3112 Series
Low Profile Power Inductors
Mechanical Diagrams

Dimensions are in millimeters.
Part Marking:
3 Digit Marking: (1st digit: Indicates inductance value per letter in Part Marking Designator); (2nd digit: Bi-weekly production date code); (3rd digit: Last digit of the year produced).

Packaging Information

Parts packaged on 13" Diameter reel,
4,100 parts per reel.

90
80
70
60
50
40
30
20
10
0
0

0.05

0.1

0.15

0.2

0.25

0.3

0.35

0.4

0.45

Total Loss (W)

PM-87

LOW PROFILE SHIELDED DRUM (SD3112)

Temp. Rise(°C)

DC Current vs. Temperature

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD3112 Series
Low Profile Power Inductors
Core Loss
10
1MHz

1

500kHz
300kHz
200kHz

0.1
Core Loss (W)

100kHz
0.01

50kHz

0.001

0.0001

0.00001

0.000001
1

10

100

1000

Bp-p (mT)

Inductance Characteristics

OCL vs Isat

120%
110%
100%
90%

% of OCL

80%
70%

-40°C

60%
50%

25°C

40%
30%

85°C

20%
10%
0%
0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

110%

120%

130%

140%

LOW PROFILE SHIELDED DRUM (SD3112)

% of Isat

PM-88

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD3114 Series
Low Profile Power Inductors
Description
RoHS
2002/95/EC
• 125°C maximum total temperature operation
• 3.1mm x 3.1mm x 1.4mm shielded drum core
• Ferrite core material
• Inductance range from 1.0uH to 330uH
• Current range from 2.59 Amps to 0.106 Amps
• Frequency range up to 4MHz
Applications
• Cellular phones, Digital cameras, CD players, PDA’s
• Small LCD displays
• LED driver and LED flash circuits
• Hard disk drives
• Backlighting
• EL panel
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating temperature range: -40°C to +125°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
maximum
Part Number

SD3114-1R0-R
SD3114-1R5-R
SD3114-2R2-R
SD3114-3R3-R
SD3114-4R7-R
SD3114-6R8-R
SD3114-8R2-R
SD3114-100-R
SD3114-150-R
SD3114-220-R
SD3114-330-R
SD3114-470-R
SD3114-680-R
SD3114-820-R
SD3114-101-R
SD3114-151-R
SD3114-221-R
SD3114-331-R

Rated
Inductance
(μH)
1.0
1.5
2.2
3.3
4.7
6.8
8.2
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100.0
150.0
220.0
330.0

OCL (1)
(μH)
1.16+/-30%
1.44+/-30%
2.12+/-30%
3.36+/-30%
4.90+/-30%
6.72+/-30%
8.10+/-30%
10.4+/-30%
14.9+/-20%
22.5+/-20%
33.1+/-20%
47.5+/-20%
68.6+/-20%
81.8+/-20%
101.1+/-20%
149.0+/-20%
220.9+/-20%
329.5+/-20%

Part
Marking
Designator
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R

Irms (2)
Amperes

Isat (3)
Amperes

1.60
1.39
1.17
0.95
0.77
0.71
0.68
0.57
0.48
0.43
0.35
0.280
0.239
0.227
0.213
0.172
0.140
0.113

2.35
2.11
1.74
1.38
1.14
0.98
0.89
0.78
0.66
0.53
0.44
0.37
0.305
0.280
0.252
0.207
0.170
0.139

DCR (Ω)
typ. @
20°C
0.058
0.077
0.110
0.167
0.251
0.296
0.329
0.458
0.650
0.821
1.23
1.86
2.62
2.91
3.30
5.07
7.67
11.78

K-factor
(4)
98
79
67
54
45
37
34
30
25
21
17
14
12
11
10
8
6
5

(3) Isat Amperes peak for approximately 30% rolloff (@20°C)
(4) K-factor: Used to determine B p-p for core loss (see graph).
B p-p = K*L*ΔI, B p-p(mT), K: (K factor from table), L: (Inductance in uH),
ΔI (Peak to peak ripple current in Amps).

PM-89

LOW PROFILE SHIELDED DRUM (SD3114)

(1) Open Circuit Inductance Test Parameters: 100kHz, 0.1V, 0.0Adc.
(2) Irms: DC current for an approximate DT of 40°C without core loss. Derating is
necessary for AC currents. PCB layout, trace thickness and width, air-flow, and
proximity of other heat generating components will affect the temperature rise. It
is recommended that the temperature of the part not exceed 125°C under worst
case operating conditions verified in the end application.

Packaging
• Supplied in tape and reel packaging, 4100 per reel

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD3114 Series
Low Profile Power Inductors
Mechanical Diagrams
BOTTOM VIEW

TOP VIEW

RECOMMENDED PCB LAYOUT
2.40

Pin #1 indicator

3.1 max.

1.40

Marking
3.7 max

XX X

0.70

3.1 max.
1.2 typical

SCHEMATI C
1

SIDE VIEW

1.4 max
2

Dimensions are in millimeters.

Part Marking:
3 Digit Marking: (1st digit: Indicates inductance value per letter in Part Marking Designator); (2nd digit: Bi-weekly production date code); (3rd digit: Last digit of the year produced).

Packaging Information

4.00

1.2 Dia
min.

1.5 Dia.
+0.1/-0.0

2.00 ¡À0.05

A

1

1.75

B1
10.25

Bo

12.0
+/-0.3

5.50
2

3.2
Ko

3.2

A

A1

SECTION A-A

Ao
8.0

Ao = 3.9 mm
A1 = 0.93 mm
Bo = 3.60 mm
B1 = 1.25 mm
Ko = 1.60 mm

Parts packaged on 13" Diameter reel,
4,100 parts per reel.

Direction of feed

Temp. Rise (°C)

LOW PROFILE SHIELDED DRUM (SD3114)

DC Current vs. Temperature

90
80
70
60
50
40
30
20
10
0
0

0. 05

0. 1

0. 15

0. 2

0. 25

0. 3

0. 35

0. 4

0. 45

Total Loss(W)

PM-90

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD3114 Series
Low Profile Power Inductors
Core Loss
10
1MH z
1

50 0kH z
300kH z
200kH z

0 .1
Core Loss (W)

10 0kH z
50kH z

0 .01

0.0 01

0 .00 01

0 .000 01

0.0 000 01
1

10

100

1000

B p-p (mT )

Inductance Characteristics
OCL vs. Isat
120%
110%
100%
90%

% of L initial

80%
70%

-40°C

60%
50%

25°C

40%
30%

85°C

20%
10%
0%
0%

10%

20%

30%

40%

50%

60%

70%

80%

90% 100% 110% 120% 130%

LOW PROFILE SHIELDED DRUM (SD3114)

PM-91

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD3118 Series
Low Profile Power Inductors
Description
RoHS
2002/95/EC
• 125°C maximum total temperature operation
• 3.1mm x 3.1mm x 1.8mm shielded drum core
• Ferrite core material
• Inductance range from 1.0uH to 1000uH
• Current range from 2.94 Amps to 0.083 Amps
• Frequency range up to 4MHz
Applications
• Cellular phones, Digital cameras, CD players, PDA’s
• Small LCD displays
• LED driver and LED flash circuits
• Hard disk drives
• Backlighting
• EL panel
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating temperature range: -40°C to +125°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
maximum
Part Number

SD3118-1R0-R
SD3118-1R5-R
SD3118-2R2-R
SD3118-3R3-R
SD3118-4R7-R
SD3118-6R8-R
SD3118-8R2-R
SD3118-100-R
SD3118-150-R
SD3118-220-R
SD3118-330-R
SD3118-470-R
SD3118-221-R
SD3118-331-R
SD3118-471-R
SD3118-681-R
SD3118-102-R

Rated
Inductance
(μH)
1.0
1.5
2.2
3.3
4.7
6.8
8.2
10.0
15.0
22.0
33.0
47.0
220.0
330.0
470.0
680.0
1000.0

OCL (1)
(μH)
1.04+/-30%
1.44+/-30%
2.12+/-30%
3.36+/-30%
4.90+/-30%
6.72+/-30%
8.10+/-30%
10.4+/-30%
14.9+/-20%
22.5+/-20%
33.1+/-20%
47.5+/-20%
221.9+/-20%
329.9+/-20%
470.1+/-20%
680.3+/-20%
999.4+/-20%

Part
Marking
Designator
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q

LOW PROFILE SHIELDED DRUM (SD3118)

(1) Open Circuit Inductance Test Parameters: 100kHz, 0.1V, 0.0Adc.
(2) Irms: DC current for an approximate DT of 40°C without core loss. Derating is
necessary for AC currents. PCB layout, trace thickness and width, air-flow, and
proximity of other heat generating components will affect the temperature rise. It
is recommended that the temperature of the part not exceed 125°C under worst
case operating conditions verified in the end application.

Packaging
• Supplied in tape and reel packaging, 4100 per reel

Irms (2)
Amperes

Isat (3)
Amperes

2.01
1.81
1.50
1.22
1.02
0.85
0.81
0.75
0.62
0.50
0.41
0.370
0.182
0.146
0.131
0.107
0.087

3.07
2.42
2.00
1.59
1.31
1.12
1.02
0.90
0.75
0.61
0.51
0.42
0.177
0.145
0.122
0.101
0.083

DCR (Ω)
typ. @
20°C
0.041
0.051
0.074
0.113
0.162
0.232
0.257
0.295
0.440
0.676
0.986
1.21
4.77
7.40
9.20
13.70
20.90

K-factor
(4)
84
68
57
56
39
32
29
26
21
18
14
12
6
5
4
3
3

(3) Isat Amperes peak for approximately 30% rolloff (@20°C)
(4) K-factor: Used to determine B p-p for core loss (see graph).
B p-p = K*L*ΔI, B p-p(mT), K: (K factor from table), L: (Inductance in uH),
ΔI (Peak to peak ripple current in Amps).

PM-92

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD3118 Series
Low Profile Power Inductors
Mechanical Diagrams
BOTTOM VIEW

TOP VIEW

RECOMMENDED PCB LAYOUT
2.40

Pin #1 indicator

3.1 max.

1.40

Marking
3.7 max

XX X

0.70

3.1 max.
1.2 typical

SCHEMATIC
1

SIDE VIEW

1.8 max
Dimensions are in millimeters.

2

Part Marking:
3 Digit Marking: (1st digit: Indicates inductance value per letter in Part Marking Designator); (2nd digit: Bi-weekly production date code); (3rd digit: Last digit of the year produced).
4.00

Packaging Information

1.2 Dia
min.

1.5 Dia.
+0.1/-0.0

2.00 ¡ .0
À 05

A

1

1.75

B1
10.25

Bo

12.0
+/-0.3

5.50
2

3.2
Ko

3.2

A

A1

SECTION A-A

Ao
8.0

Ao = 3.9 mm
A1 = 0.93 mm
Bo = 3.70 mm
B1 = 1.25 mm
Ko = 2.00 mm

Parts packaged on 13" Diameter reel,
4,100 parts per reel.
Direction of feed

90
80
70
60
50
40
30
20
10
0
0

0.05

0.1

0.15

0. 2

0.25

0.3

0. 35

0.4

0.45

Total Loss(W)

PM-93

LOW PROFILE SHIELDED DRUM (SD3118)

Temp.Rise(°C)

DC Current vs. Temperature

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD3118 Series
Low Profile Power Inductors
Core Loss
10
1MHz
1

500kHz
300kHz
200kHz

Core Loss (W)

0.1

100kHz
50kHz
0.01

0.001

0.0001

0.00001
1

10

100

1000

Bp-p (mT)

Inductance Characteristics
OCL vs. Isat
120%
110%
100%

% of L initial

90%
80%
70%
60%

-40°C

50%
40%

25°C

30%

85°C

20%
10%
0%
0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100% 110%

120%

130% 140%

LOW PROFILE SHIELDED DRUM (SD3118)

% o f Isat

PM-94

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD38 Series
Low Profile, Shielded Inductors
Description
RoHS
2002/95/EC
• 3.8mm x 3.8mm shielded drum cores available
in two heights: 1.2mm and 1.4mm
• Current range from 4.44 to 0.100 Amps
• Inductance range from 0.47 uH to 680 uH
• Ferrite shielded, low EMI
• Ferrite core material
Applications
• Digital cameras, cellular phones, CD players, and PDAs
• PCMCIA cards
• GPS systems
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating ambient temperature range: -40°C to +85°C
(range is application specific). Temperature rise is
approximately 40°C at rated rms current
• Solder reflow temperature: +260°C max for 10 seconds
max.
Part Number

OCL (1)
+/-15%
(μH)
0.405
0.845
1.125
1.445
2.205
3.125
4.805
6.845
8.405
10.125
15.125
21.125
32.805
47.045
68.445
80.645
99.405
149.645
218.405
0.360
0.752
1.001
1.286
1.962
2.781
4.276
6.768
8.228
9.830
14.458
21.186
32.151
47.210
67.324

Part
Marking
Designator
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O

(1) Test Parameters: 100KHz, 0.100Vrms, 0.0Adc.
(2) RMS current for an approximate ΔT of 40°C without core loss. It is recommended that the temperature of the part not exceed 125°C.
De-rating is necessary for AC currents.
(3) Peak current for approximately 30% rolloff at 20°C.

Irms (2)
Amperes

Isat (3)
Amperes

2.53
2.00
1.71
1.58
1.32
1.10
0.87
0.80
0.690
0.662
0.539
0.499
0.399
0.327
0.269
0.259
0.217
0.178
0.160
2.81
2.18
1.85
1.76
1.43
1.31
1.06
0.87
0.753
0.713
0.574
0.519
0.418
0.346
0.285

3.89
2.69
2.33
2.06
1.67
1.40
1.13
0.95
0.854
0.778
0.636
0.538
0.432
0.361
0.299
0.276
0.248
0.202
0.167
4.44
3.08
2.67
2.35
1.90
1.60
1.29
1.03
0.930
0.851
0.702
0.580
0.471
0.388
0.325

DCR (4)
(Ω)
Typ.
0.030
0.048
0.066
0.078
0.111
0.159
0.256
0.299
0.406
0.441
0.665
0.776
1.212
1.809
2.666
2.885
4.099
6.130
7.585
0.020
0.033
0.046
0.051
0.077
0.093
0.141
0.207
0.279
0.311
0.481
0.589
0.908
1.322
1.951

Volt (5)
u-sec
Typ.
2.52
3.64
4.20
4.76
5.88
7.0
8.7
10.4
11.5
12.6
15.4
18.2
22.7
27.2
32.8
36
39
48
59
2.16
3.12
3.60
4.08
5.04
6.0
7.4
9.4
10.3
11.3
13.7
16.6
20.4
24.7
29.5

(4) DCR limits @ 20°C.
(5) Applied Volt-Time product (V-uS) across the inductor at 100kHz necessary to
generate a core loss equal to 10% of the total losses for 40°C temperature rise.
De-rating of the Irms is required to prevent excessive temperature rise.

LOW PROFILE SHIELDED DRUM (SD38)

SD3812-R47-R
SD3812-1R0-R
SD3812-1R2-R
SD3812-1R5-R
SD3812-2R2-R
SD3812-3R3-R
SD3812-4R7-R
SD3812-6R8-R
SD3812-8R2-R
SD3812-100-R
SD3812-150-R
SD3812-220-R
SD3812-330-R
SD3812-470-R
SD3812-680-R
SD3812-820-R
SD3812-101-R
SD3812-151-R
SD3812-221-R
SD3814-R47-R
SD3814-R82-R
SD3814-1R2-R
SD3814-1R5-R
SD3814-2R2-R
SD3814-3R3-R
SD3814-4R7-R
SD3814-6R8-R
SD3814-8R2-R
SD3814-100-R
SD3814-150-R
SD3814-220-R
SD3814-330-R
SD3814-470-R
SD3814-680-R

Rated
Inductance
(μH)
0.47
1.0
1.2
1.5
2.2
3.3
4.7
6.8
8.2
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100.0
150.0
220.0
0.47
0.82
1.2
1.5
2.2
3.3
4.7
6.8
8.2
10.0
15.0
22.0
33.0
47.0
68.0

Packaging
• Supplied in tape and reel packaging,
4,150 parts per 13" reel

PM-95

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD38 Series
Low Profile, Shielded Inductors
Part Number
SD3814-820-R
SD3814-101-R
SD3814-151-R
SD3814-221-R
SD3814-331-R
SD3814-471-R
SD3814-681-R

Rated
Inductance
(μH)
82.0
100.0
150.0
220.0
330.0
470.0
680.0

OCL (1)
+/-15%
(μH)
81.101
98.794
149.026
217.342
326.812
470.031
680.320

Part
Marking
Designator
P
Q
R
S
T
U
V

Isat (3)
Amperes

0.270
0.228
0.191
0.170
0.136
0.111
0.100

0.296
0.268
0.219
0.181
0.148
0.123
0.102

DCR (4)
(Ω)
Typ.
2.174
3.048
4.359
5.480
8.59
12.85
15.78

Volt (5)
u-sec
Typ.
32
36
44
53
65
78
94

(4) DCR limits @ 20°C.
(5) Applied Volt-Time product (V-uS) across the inductor at 100kHz necessary to
generate a core loss equal to 10% of the total losses for 40°C temperature rise.
De-rating of the Irms is required to prevent excessive temperature rise.

(1) Test Parameters: 100KHz, 0.100Vrms, 0.0Adc.
(2) RMS current for an approximate ΔT of 40°C without core loss. It is recommended that the temperature of the part not exceed 125°C.
De-rating is necessary for AC currents.
(3) Peak current for approximately 30% rolloff at 20°C.

Mechanical Diagrams
SD3812 Series

Irms (2)
Amperes

BOTTOM VIEW

TOP VIEW

SIDE VIEW

4.8
MA X
3.65
typ

Pin #1 indicator
Marking
(see note A)

1.2
max

0.09 max
no plating

1.25
±0.12

2.03
±.02

4.0
max

4.0
max

0.415 min

RECOMMENDED PCB LAYOUT

SCHEMATIC

1.0
2 plcs

2.5
2plcs

4.0 typ
5.0

Note A: 3 digit marking. First digit indicates inductance value per chart above.
Second digit indicates bi-weekly date code.
Third digit of year produced. Box indicates SD3814 part.

SD3814 Series

TOP VIEW

SIDE VIEW

Pin #1 indicator
Marking
(see note A)

BOTTOM VIEW
4.8
MA X
3.65
typ
0.09 max
no plating

1.4
max

1.25
±0.12

LOW PROFILE SHIELDED DRUM (SD38)

2.03
±.02

4.0
max

4.0
max
0.415 min

RECOMMENDED PCB LAYOUT
1.0
2 plcs

SCHEMATIC

2.5
2 plcs

4.0 typ
5.0

Note A: 3 digit marking. First digit indicates inductance value per chart above.
Second digit indicates bi-weekly date code.
Third digit of year produced. Box indicates SD3814 part.

PM-96

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD38 Series
Low Profile, Shielded Inductors
Packaging Information
SD3812/SD3814 Series

4.00
2.00 ± 0.05

1.5 Dia
min.

1.5 Dia.
+0.1/-0.0

1.75

Ao=5.1mm
Bo=4.6mm
Ko=1.6mm

12.0
+/-0.3

Bo
5.50
4.5

4.5

Ao

Ko

Parts packaged on 13" Diameter reel,
4,150 parts per reel.

8.0

SECTION A-A

Direction of feed

Inductance Characteristics
OCL vs Isat
SD3814

OCL vs Isat
SD3812
100
90
80

100
90
80

OCL (%)

OCL (%)

70
60
50
40
30
20
10

70
60
50
40
30
20
10
0
0

0
0

10

20

30

40

50

60

70

80

90

100

110

120

130

% of Isat

% of Isat

Core Loss

10 20 30 40 50 60 70 80 90 10 11 12 13 14 15 16
0 0 0 0 0 0 0

% of Losses from Irms (maximum)

Irms DERATING WITH CORE LOSS

LOW PROFILE SHIELDED DRUM (SD38)

% of Applied Volt-μSecond

PM-97

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SDH3812 Series
Low Profile, High Power, Shielded Inductors
Description
RoHS
2002/95/EC
• 125°C maximum total temperature operation
• 3.8mm x 3.8mm x 1.2mm shielded drum core
• High power density, compact footprint
• Inductance range from 0.47uH to 220uH
• Current range from 4.2 Amps to 0.16 Amps
• Ferrite shielded, low EMI
• Ferrite core material
Applications
• Buck or Boost inductor
• Noise filtering output filter chokes
• LED photo flash
• Handheld devices
• Notebook and battery power
• Cellular phones / PDA’s / GPS systems
• Digital cameras / MP3 players / IP phones
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating temperature range: -40°C to +125°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
maximum
Part Number

LOW PROFILE SHIELDED DRUM (SDH3812)

SDH3812-R47-R
SDH3812-1R0-R
SDH3812-1R2-R
SDH3812-1R5-R
SDH3812-2R2-R
SDH3812-3R3-R
SDH3812-4R7-R
SDH3812-6R8-R
SDH3812-8R2-R
SDH3812-100-R
SDH3812-150-R
SDH3812-220-R
SDH3812-330-R
SDH3812-470-R
SDH3812-680-R
SDH3812-820-R
SDH3812-101-R
SDH3812-151-R
SDH3812-221-R

Rated
Inductance
(μH)
0.47
1.0
1.2
1.5
2.2
3.3
4.7
6.8
8.2
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100.0
150.0
220.0

OCL (1)
μH ± 20%
0.43
0.89
1.17
1.49
2.23
3.17
4.96
6.70
8.01
9.67
14.45
22.00
32.90
46.20
67.40
81.80
97.50
149.00
218.50

Part
Marking
Designator
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S

(1) Open Circuit Inductance Test Parameters: 100kHz, 0.1V, 0.0Adc.
(2) Irms: DC current for an approximate ΔT of 40°C without core loss. Derating is
necessary for AC currents. PCB layout, trace thickness and width, air-flow, and
proximity of other heat generating components will affect the temperature rise. It
is recommended that the temperature of the part not exceed 125°C under worst
case operating conditions verified in the end application.
(3) Isat Amperes peak for 30% maximum rolloff (@25°C)

Packaging
• Supplied in tape and reel packaging, 4150 per reel

Irms (2)
Amperes

Isat (3)
Amperes

2.69
2.07
1.77
1.67
1.37
1.14
0.94
0.85
0.73
0.69
0.56
0.50
0.41
0.34
0.31
0.26
0.25
0.20
0.16

4.20
3.00
2.60
2.30
1.90
1.60
1.25
1.05
0.96
0.88
0.72
0.61
0.49
0.41
0.34
0.31
0.28
0.22
0.19

DCR
Ω @20°C
(Typical)
0.027
0.045
0.062
0.069
0.104
0.148
0.220
0.265
0.342
0.398
0.612
0.750
1.132
1.583
2.000
2.750
3.042
4.542
7.017

DCR
Ω @20°C
(Maximum)
0.032
0.054
0.074
0.083
0.124
0.177
0.264
0.317
0.410
0.478
0.735
0.900
1.358
1.900
2.400
3.300
3.650
5.450
8.420

K-factor
(4)
145.2
100.6
87.1
76.9
62.2
52.3
42.2
35.3
33.5
30.4
23.8
20.1
16.1
13.8
11.4
10.3
9.4
7.6
6.3

(4) K-factor: Used to determine B p-p for core loss (see graph).
B p-p = K*L*ΔI, B p-p(mT), K: (K factor from table), L: (Inductance in uH),
ΔI (Peak to peak ripple current in Amps).
(5) Part Number Definition: SDH3812-xxx-R
SDH3812 = Product code and size; -xxx = Inductance value in uH;
R = decimal point; If no R is present, third character = # of zeros.
-R suffix = RoHS compliant

PM-98

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SDH3812 Series
Low Profile, High Power, Shielded Inductors
Mechanical Diagrams

Dimensions are in millimeters.
Part Marking:
3 Digit Marking: (1st digit: Indicates inductance value per Part Marking Designator in chart above); (2nd digit: Bi-weekly production date code); (3rd digit: Last digit of the year produced).
1.5 Dia

Packaging Information

1.5 Dia.

4.00
2.00

A

1.75

1

A0 = 4.9 mm
B0 = 4.9 mm
K0 = 1.6 mm

Bo

10.25

XX X

12.0
+/-0.3

5.50

Ko

2

4.2

A0

8

4.2

SECTION A-A

A
Direction of feed
Parts packaged on 13" Diameter reel,
4,150 parts per reel.

Core Loss
1

500kHz
1MHz

0.1

200kHz

0.01
Core Loss (W)

300kHz

100kHz

0.001

0.0001

0.000001
1

10

100

1000

Bp-p (m T)

PM-99

LOW PROFILE SHIELDED DRUM (SDH3812)

0.00001

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SDH3812 Series
Low Profile, High Power, Shielded Inductors
Temperature Rise vs. Loss
100

Temperature Rise (°C)

80

60

40

20

0
0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

Total Loss (W)

Inductance Characteristics
OCL Vs. Isat
120.00%

100.00%

OCL %

80.00%

60.00%

40.00%

20.00%

0.00%
0.00%

+25 Deg. C
+85 Deg. C
- 40 Deg. C

20.00%

40.00%

60.00%

80.00%

100.00%

120.00%

140.00%

160.00%

LOW PROFILE SHIELDED DRUM (SDH3812)

Isat %

PM-100

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD Series
High Power Density,
Low Profile, Shielded Inductors
Description
RoHS
2002/95/EC
• Six sizes of shielded drum core inductors with low
profiles (as low as 1.0mm) and high power density
• Inductance range from .47uH to 1000uH
• Current range from 6.00 to 0.088 Amps
• Ferrite shielded, low EMI
• Ferrite core material
Applications
• Digital cameras, CD players, cellular phones, and PDAs
• PCMCIA cards
• GPS systems
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating ambient temperature range: -40°C to +85°C
(range is application specific). Temperature rise is
approximately 40°C at rated rms current
• Solder reflow temperature: +260°C max. for 10 seconds
max.
Part Number

OCL (1)
+/-20%
(μH)
0.453
1.119
1.563
2.081
3.339
4.893
6.743
8.889
10.07
15.55
22.21
32.20
46.63
70.01
83.48
102.0
149.2
222.2
330.4
468.3
0.490
1.21
1.69
2.25
3.61
4.41
6.25
8.41
10.89
15.21
22.09
32.49
47.61
68.89

Part
Marking

Irms (2)
Amperes

Isat (3)
Amperes

A
B
C
D
E
F
G
H
J
K
L
M
N
O
P
Q
R
S
T
U
A
B
C
D
E
F
G
H
J
K
L
M
N
O

2.59
1.93
1.60
1.35
1.24
1.04
0.94
0.800
0.760
0.613
0.498
0.412
0.337
0.301
0.258
0.225
0.200
0.161
0.130
0.117
3.19
2.62
2.19
1.83
1.55
1.46
1.21
1.02
0.938
0.782
0.628
0.519
0.428
0.341

3.54
2.25
1.91
1.65
1.31
1.08
0.92
0.800
0.752
0.605
0.506
0.420
0.349
0.285
0.261
0.236
0.195
0.160
0.131
0.110
3.86
2.45
2.08
1.80
1.42
1.29
1.08
0.931
0.818
0.692
0.574
0.474
0.391
0.325

(1) Open Circuit Inductance Test Parameters: 100KHz, 0.25Vrms, 0.0Adc.
(2) RMS current for an approximate ΔT of 40°C without core loss. It is recommended that the temperature of the part not exceed 125°C.
(3) SD10,12,18,25 Peak current for approximate 30% roll off at 20°C.
SD14 Peak current for approximate 20% roll off at 20°C.

DCR (4)
(Ω)
Typ.
0.0249
0.0448
0.0653
0.0912
0.1078
0.1535
0.218
0.2607
0.336
0.4429
0.6718
0.9807
1.47
1.84
2.50
3.29
4.15
6.41
9.83
12.10
0.0246
0.0366
0.0521
0.0747
0.1043
0.1177
0.1699
0.2399
0.2844
0.4089
0.6338
0.9289
1.37
2.16

Volt
u-sec
Typ.
2.1
3.3
3.9
4.5
5.7
6.9
8.1
9.3
9.9
12.3
14.7
17.7
21.3
26.1
28.5
31.5
38.1
46.5
56.7
67.5
2.84
4.47
5.28
6.09
7.71
8.53
10.15
11.77
13.40
15.83
19.08
23.14
28.01
33.70

(4) DCR limits @ 20°C.
5) Applied Volt-Time product (V-uS) across the inductor at 100kHz necessary to
generate a core loss equal to 10% of the total losses for 40°C temperature rise.

LOW PROFILE SHIELDED DRUM (SD)

SD10-R47-R
SD10-1R0-R
SD10-1R5-R
SD10-2R2-R
SD10-3R3-R
SD10-4R7-R
SD10-6R2-R
SD10-8R2-R
SD10-100-R
SD10-150-R
SD10-220-R
SD10-330-R
SD10-470-R
SD10-680-R
SD10-820-R
SD10-101-R
SD10-151-R
SD10-221-R
SD10-331-R
SD10-471-R
SD12-R47-R
SD12-1R2-R
SD12-1R5-R
SD12-2R2-R
SD12-3R3-R
SD12-4R7-R
SD12-6R2-R
SD12-8R2-R
SD12-100-R
SD12-150-R
SD12-220-R
SD12-330-R
SD12-470-R
SD12-680-R

Rated
Inductance
(μH)
0.470
1.00
1.50
2.20
3.30
4.70
6.20
8.20
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100
150
220
330
470
0.470
1.20
1.50
2.20
3.30
4.70
6.20
8.20
10.0
15.0
22.0
33.0
47.0
68.0

Packaging
• Supplied in tape and reel packaging, 3800 (SD10,
SD12, SD14 and SD18), 2900 (SD20 and SD25)
per reel

PM-101

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD Series
High Power Density,
Low Profile, Shielded Inductors

LOW PROFILE SHIELDED DRUM (SD)

Part Number
SD12-820-R
SD12-101-R
SD12-151-R
SD12-221-R
SD12-331-R
SD12-471-R
SD12-681-R
SD12-821-R
SD12-102-R
SD14-R58-R
SD14-R87-R
SD14-1R2-R
SD14-1R5-R
SD14-2R0-R
SD14-2R5-R
SD14-3R2-R
SD14-4R5-R
SD14-6R9-R
SD14-8R8-R
SD14-100-R
SD14-150-R
SD14-220-R
SD14-330-R
SD14-470-R
SD14-680-R
SD14-820-R
SD14-101-R
SD14-151-R
SD14-221-R
SD14-331-R
SD14-471-R
SD14-681-R
SD14-821-R
SD14-102-R
SD18-R47-R
SD18-R82-R
SD18-1R2-R
SD18-1R5-R
SD18-2R2-R
SD18-3R3-R
SD18-4R7-R
SD18-6R2-R
SD18-8R2-R
SD18-100-R
SD18-150-R
SD18-220-R
SD18-330-R
SD18-470-R
SD18-680-R
SD18-820-R
SD18-101-R
SD18-151-R
SD18-221-R
SD18-331-R
SD18-471-R
SD18-681-R
SD18-821-R
SD18-102-R

Rated
Inductance
(μH)
82.0
100
150
220
330
470
680
820
1000
0.58
0.87
1.2
1.5
2
2.5
3.2
4.5
6.9
8.8
10
15
22
33
47
68
82
100
150
220
330
470
680
820
1000
0.47
0.82
1.20
1.50
2.20
3.30
4.70
6.20
8.20
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100
150
220
330
470
680
820
1000

OCL (1)
+/-20%
(μH)
82.81
98.0
151.3
222.0
334.9
462.3
670.8
800.9
992.3
0.61
0.88
1.23
1.63
2.09
2.62
3.19
4.53
6.98
8.88
9.93
14.68
21.93
32.55
47.57
68.21
83
99.25
152.4
222
335.1
471.4
683.3
823.4
1008
0.49
0.81
1.21
1.69
2.25
3.61
4.41
6.25
8.41
10.89
15.21
22.09
32.49
47.61
68.89
82.81
102.01
151.29
222.01
334.89
479.61
681.21
823.69
1004

Part
Marking

Irms (2)
Amperes

Isat (3)
Amperes

P
Q
R
S
T
U
V
W
X
A
B
C
D
E
F
G
H
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
A
B
C
D
E
F
G
H
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y

0.326
0.308
0.251
0.229
0.186
0.167
0.149
0.129
0.121
3.52
3.2
2.7
2.53
2.37
2.05
1.94
1.64
1.35
1.14
1.1
0.98
0.806
0.654
0.525
0.474
0.408
0.386
0.315
0.258
0.206
0.173
0.156
0.134
0.126
3.58
3.24
2.97
2.73
2.55
2.07
1.77
1.61
1.38
1.28
1.06
0.876
0.715
0.578
0.514
0.446
0.419
0.345
0.296
0.248
0.201
0.167
0.145
0.136

0.297
0.273
0.220
0.181
0.148
0.126
0.104
0.095
0.086
4.84
3.96
3.35
2.91
2.56
2.29
2.08
1.74
1.41
1.25
1.18
0.969
0.793
0.651
0.538
0.449
0.407
0.373
0.301
0.249
0.203
0.171
0.142
0.129
0.117
4.63
3.60
2.95
2.49
2.16
1.71
1.54
1.30
1.12
0.982
0.831
0.689
0.568
0.470
0.390
0.356
0.321
0.263
0.217
0.177
0.148
0.124
0.113
0.102

(1) Open Circuit Inductance Test Parameters: 100KHz, 0.25Vrms, 0.0Adc.
(2) RMS current for an approximate ΔT of 40°C without core loss. It is recommended that the temperature of the part not exceed 125°C.
(3) SD10,12,18,25 Peak current for approximate 30% roll off at 20°C.
SD14 Peak current for approximate 20% roll off at 20°C.

DCR (4)
(Ω)
Typ.
2.36
2.64
3.96
4.76
7.25
8.95
11.30
14.93
17.20
0.0220
0.0243
0.0344
0.0390
0.0445
0.0595
0.0663
0.0935
0.1363
0.1913
0.2058
0.2609
0.3853
0.5852
0.9055
1.11
1.50
1.68
2.52
3.77
5.92
8.34
10.3
13.9
15.8
0.0201
0.0247
0.0294
0.0345
0.0398
0.0605
0.0824
0.1000
0.1351
0.1584
0.2278
0.3366
0.5057
0.7732
0.9798
1.30
1.47
2.18
2.95
4.20
6.39
9.28
12.35
14.01

Volt
u-sec
Typ.
36.95
40.19
49.94
60.49
74.30
87.29
105
115
128
3.38
4.13
4.88
5.63
6.38
7.1
7.9
9.4
11.6
13.1
13.9
16.9
20.6
25.1
30.4
36
40
44
54
66
81
96
115
126
140
2.35
3.02
3.70
4.37
5.04
6.38
7.06
8.40
9.74
11.09
13.10
15.79
19.15
23.18
27.89
30.58
33.94
41.33
50.06
61.49
73.58
87.70
96.43
107

(4) DCR limits @ 20°C.
5) Applied Volt-Time product (V-uS) across the inductor at 100kHz necessary to
generate a core loss equal to 10% of the total losses for 40°C temperature rise.

PM-102

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD Series
High Power Density,
Low Profile, Shielded Inductors
Part Number
SD20-R47-R
SD20-1R2-R
SD20-1R5-R
SD20-2R2-R
SD20-3R3-R
SD20-4R7-R
SD20-6R2-R
SD20-8R2-R
SD20-100-R
SD20-150-R
SD20-220-R
SD20-330-R
SD20-470-R
SD20-680-R
SD20-820-R
SD20-101-R
SD20-151-R
SD20-221-R
SD20-331-R
SD20-471-R
SD20-681-R
SD20-821-R
SD20-102-R
SD25-R47-R
SD25-R82-R
SD25-1R2-R
SD25-1R5-R
SD25-2R2-R
SD25-3R3-R
SD25-4R7-R
SD25-6R8-R
SD25-8R2-R
SD25-100-R
SD25-150-R
SD25-220-R
SD25-330-R
SD25-470-R
SD25-680-R
SD25-820-R
SD25-101-R
SD25-151-R
SD25-221-R
SD25-331-R
SD25-471-R
SD25-681-R
SD25-821-R
SD25-102-R

Rated
Inductance
(μH)
0.47
1.20
1.50
2.20
3.30
4.70
6.20
8.20
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100
150
220
330
470
680
820
1000
0.47
0.82
1.20
1.50
2.20
3.30
4.70
6.80
8.20
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100
150
220
330
470
680
820
1000

OCL (1)
+/-20%
(μH)
0.490
1.21
1.69
2.25
3.61
4.41
6.25
8.41
9.61
15.21
22.09
32.49
47.61
68.89
82.81
98.01
151.3
222.0
327.6
470.9
681.2
823.7
1004.9
0.466
0.770
1.15
1.61
2.14
3.43
5.03
6.93
7.99
10.35
14.45
22.81
33.07
47.89
68.64
82.17
100.79
148.4
222.4
332.2
472.4
677.2
826.7
1003.4

Part
Marking

Irms (2)
Amperes

Isat (3)
Amperes

A
B
C
D
E
F
G
H
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
A
B
C
D
E
F
G
H
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y

3.59
3.07
2.88
2.45
2.17
2.05
1.89
1.61
1.53
1.25
1.12
0.913
0.745
0.610
0.576
0.495
0.435
0.356
0.294
0.263
0.216
0.204
0.172
3.88
3.58
3.33
3.12
2.93
2.64
2.39
2.19
1.92
1.80
1.67
1.34
1.11
0.919
0.741
0.713
0.670
0.553
0.446
0.359
0.293
0.262
0.230
0.216

4.00
2.55
2.15
1.87
1.47
1.33
1.12
0.966
0.903
0.718
0.596
0.491
0.406
0.337
0.308
0.283
0.228
0.188
0.155
0.129
0.107
0.098
0.088
6.00
4.67
3.81
3.23
2.80
2.21
1.83
1.56
1.45
1.27
1.08
0.857
0.711
0.592
0.482
0.441
0.398
0.328
0.268
0.219
0.184
0.154
0.139
0.126

Volt
u-sec
Typ.
2.28
3.58
4.23
4.88
6.18
6.83
8.13
9.43
10.08
12.68
15.28
18.53
22.43
26.98
29.58
32.18
39.98
48.43
58.83
70.53
84.83
93.28
103
2.13
2.74
3.34
3.95
4.56
5.78
6.99
8.21
8.82
10.03
11.86
14.90
17.94
21.58
25.84
28.27
31.31
38.00
46.51
56.85
67.79
81.17
89.68
98.80

(4) DCR limits @ 20°C.
5) Applied Volt-Time product (V-uS) across the inductor at 100kHz necessary to
generate a core loss equal to 10% of the total losses for 40°C temperature rise.

LOW PROFILE SHIELDED DRUM (SD)

(1) Open Circuit Inductance Test Parameters: 100KHz, 0.25Vrms, 0.0Adc.
(2) RMS current for an approximate ΔT of 40°C without core loss. It is recommended that the temperature of the part not exceed 125°C.
(3) SD10,12,18,25 Peak current for approximate 30% roll off at 20°C.
SD14 Peak current for approximate 20% roll off at 20°C.

DCR (4)
(Ω)
Typ.
0.0200
0.0275
0.0312
0.0429
0.0547
0.0612
0.0720
0.1000
0.1100
0.1655
0.2053
0.3100
0.4650
0.6947
0.7785
1.06
1.37
2.04
2.99
3.74
5.56
6.22
8.73
0.0177
0.0208
0.0240
0.0274
0.0311
0.0384
0.0467
0.0556
0.0724
0.0824
0.0956
0.1478
0.2149
0.3156
0.4850
0.5242
0.5937
0.8723
1.34
2.07
3.10
3.88
5.04
5.70

PM-103

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD Series
High Power Density,
Low Profile, Shielded Inductors
Mechanical Diagrams
SD Series

RECOMMENDED PCB LAYOUT

TOP VIEW
Pin # 1
identifier

2 PAD LAYOUT

SIDE VIEW

1

SCHEMATIC

1

5.95
9

5.2
Max
a
Part marking
(Note A)

4 PAD LAYOUT

BOTTOM VIEW

2
2.975

Series
SD10
SD12
SD14
SD18
SD20
SD25

5.950

2

2
2.575

2

HT

1

2
2.975

R2.250

5.15

(see chart below)

5.2
Max

5.950
9

R2.250

1.0
1.5 Typ.
Ref.

2

2.975

A) Part Marking: Line 1: (1st digit indicates the inductance value per part marking
designator in chart above)
(2nd digit is a bi-weekly production date code)
(3rd digit is the last digit of the year produced)
Line 2: XX (indicates the product size code)

HT
1.0mm max
1.2mm max
1.45mm max
1.8mm max
2.0mm max
2.5mm max

Packaging Information
SD10 Series

4.00
2
2.00
± 0.05

1.5 Dia
min.

1.5 Dia.
+0.1/-0.0

A

1.75

1
12.0
+/-0.3
0

B
Bo

ACTUAL SIZE
SD10

5.50

2

Ao=5.45mm
Bo=5.45mm
Ko=1.20mm

Ko

A

A
Ao

Parts packaged on 13" Diameter reel,
3,800 parts per reel.

8.0

SECTION A-A

Direction of feed

SD12/14/18 Series

4.00

2.00 ± 0.05

1.5 Dia
min.

1.5 Dia.
+0.1/-0.0

1.75

A

ACTUAL SIZE
SD12

1
12.0
+/-0.3

Bo
5.50

ACTUAL SIZE
SD18

2

Ao=5.45mm
Bo=5.45mm
Ko=2.00mm

Ko

A

Ao

Parts packaged on 13" Diameter reel,
3,800 parts per reel.

8.0

SECTION A-A

Direction of feed

SD20/25 Series
LOW PROFILE SHIELDED DRUM (SD)

ACTUAL SIZE
SD14

4.00

2.00 ± 0.05

1.5 Dia
min.

1.5 Dia.
+0.1/-0.0

1.75

A

1
12.0
+/-0.3
0

B
Bo
5.50

2

Ao=5.45mm
Bo=5.45mm
Ko=2.70mm

Ko
A
Ao
SECTION A-A

ACTUAL SIZE
SD20

ACTUAL SIZE
SD25

A
80
8.0
Direction of feed

Parts packaged on 13" Diameter reel,
2,900 parts per reel.

Dimensions are in millimeters.

PM-104

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD Series
High Power Density,
Low Profile, Shielded Inductors
DC Current vs. Temperature
SD10-471
100.0

90.0

90.0

Temperature Rise (Deg. C)

Temperature Rise (Deg. C)

SD10-220
100.0

80.0
70.0
60.0
50.0
40.0
30.0
20.0

80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0

10.0
0.0
0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.0
0.00

0.80

0.05

0.09

0.14

Idc (A)

100.0
90.0

Temperature Rise (Deg. C)

90.0
80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0

80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0

0.0
0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.0
0.00

0.80

0.10

0.20

0.30

Idc (A)

0.40

0.50

0.60

0.70

Idc (A)

SD14-102

SD14-150

100.0

100.0

90.0

Temperature Rise (Deg. C)

90.0
80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0

80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0

0.0
0.00

0.20

0.40

0.60

0.80

1.00

1.20

0.0
0.000 0.020 0.040 0.060 0.080 0.100 0.120 0.140 0.160 0.180 0.200

1.40

Idc (A)

Idc (A)

SD18-100

SD18-101

100.0
100.0

Temperature Rise (Deg. C)

Temperature Rise (Deg. C)

90.0
80.0
70.0
60.0
50.0
40.0
30.0
20.0

90.0
80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0

10.0

0.0
0.00

0.0
0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.80

Idc (A)

Idc (A)

LOW PROFILE SHIELDED DRUM (SD)

SD20-101

SD20-100
100.0

100.0

90.0

90.0

Temperature Rise (Deg. C)

Temperature Rise (Deg. C)

Temperature Rise (Deg. C)

0.23

SD12-470

SD12-330
100.0

Temperature Rise (Deg. C)

0.18

Idc (A)

80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0

80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0

0.0
0.0

0.4

0.8

1.2

Idc (A)

1.6

2.0

2.4

0.0
0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.80

Idc (A)

PM-105

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD Series
High Power Density,
Low Profile, Shielded Inductors
DC Current vs. Temperature
SD25-100

SD25-101

100.0

100.0

Temperature Rise (Deg. C)

Temperature Rise (Deg. C)

90.0
80.0
70.0
60.0
50.0
40.0
30.0
20.0

90.0
80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0

10.0

0.0
0.00

0.0
0.0

0.5

1.0

1.5

2.0

2.5

3.0

0.20

0.40

0.60

0.80

1.00

1.20

Idc (A)

Idc (A)

Inductance Characteristics
OCL vs Isat
SD12

100

100

90

90

80

80

70

70

OCL (%)

OCL (%)

OCL vs Isat
SD10

60
50
40

50
40

30

30

20

20

10

10

0
0

10

20

30

40

50

60

70

80

90

100

110

120

130

0

140

0

10

20

30

40

50

OCL vs Isat
SD14

OCL vs Isat
SD18

100

100

90

90

80

80

70

70

60
50

80

90

100

110

120

60
50

40

40

30

30

20

20
10

0
0

10

20

30

40

50

60

70

80

90

100

110

120

0

130

0

10

20

30

40

50

60

70

80

90

100

110

120

130

140

150

160

140

150

% of Isat

% of Isat

OCL vs Isat
SD20

OCL vs Isat
SD25

100

100

90

90

80

80

70

70

OCL (%)

OCL (%)

70

% of Isat

10

LOW PROFILE SHIELDED DRUM (SD)

60

% of Isat

OCL (%)

OCL (%)

60

60
50

60
50

40

40

30

30

20

20
10

10

0

0
0

10

20

30

40

50

60

70

80

90

% of Isat

100

110

120

130

140

150

160

170

0

10

20

30

40

50

60

70

80

90

100

110

120

130

% of Isat

PM-106

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD Series
High Power Density,
Low Profile, Shielded Inductors
Core Loss

% of Losses from Irms (maximum)

Irms DERATING WITH CORE LOSS

% of A
pplied Volt-μS
econd

LOW PROFILE SHIELDED DRUM (SD)

PM-107

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SDQ Series
Low Profile Dual Winding
Shielded Inductor/Transformer
Description
RoHS
2002/95/EC
• Dual winding inductors that can be used as either
a single inductor, or in coupled inductor/transformer
applications (1:1 turns ratio)
• Windings can be connected in series or parallel, offering
a broad range of inductance and current ratings
• Current Range from 6.43 to 0.063 Amps
• Inductance range from 0.47μH to 4.03mH
• Ferrite shielded, low EMI
• Ferrite core material
Applications
• As a transformer: SEPIC, flyback
• As an inductor: Buck, boost, coupled inductor
• Digital cameras, CD players, cellular phones, and PDA’s
• PCMCIA cards
• GPS systems
Environmental Data
• Storage temperature: -40°C to +125°C
• Operating temperature: -40°C to +85°C (Range is application specific). Temperature rise is approximately 40°C
at rated rms current.
• Solder reflow temperature: 260°C max. for 10 seconds
max.

Part Number

LOW PROFILE SHIELDED DRUM (SDQ)

SDQ12-R47-R
SDQ12-1R0-R
SDQ12-1R5-R
SDQ12-2R2-R
SDQ12-3R3-R
SDQ12-4R7-R
SDQ12-6R2-R
SDQ12-8R2-R
SDQ12-100-R
SDQ12-150-R
SDQ12-220-R
SDQ12-330-R
SDQ12-470-R
SDQ12-680-R
SDQ12-820-R

Rated
Inductance
(μH)
0.47
1
1.5
2.2
3.3
4.7
6.2
8.2
10
15
22
33
47
68
82

Part
Marking
A
B
C
D
E
F
G
H
J
K
L
M
N
O
P

OCL (1)
+/-20%
(μH)
0.49
0.81
1.69
2.25
3.61
4.41
6.25
8.41
9.61
15.21
22.09
32.49
47.61
68.89
82.81

Packaging
• Supplied in tape and reel packaging, SDQ12 (3,800,
SDQ25 (2,900) parts per reel

Parallel Ratings
I rms (2) I sat (3) DCR Ω (4)
Amperes Amperes
typ.
2.78
2.49
1.69
1.60
1.28
1.12
1.02
0.868
0.831
0.658
0.548
0.439
0.401
0.326
0.309

4.34
3.38
2.34
2.03
1.60
1.45
1.22
1.05
0.981
0.779
0.647
0.533
0.441
0.366
0.334

1) Test Parameters: 100kHz,.0.25 Vrms 0.0Adc
2) Rms current for approximately ΔT of 40°C without core loss. It is recommended
that the temperature of the part not to exceed 125°C. De-rating is necessary for
AC currents
3) Peak current for approximately 30% rolloff @20°C
4) DCR limits @20°C
5) Applied Volt-Time product (V-μS) across the inductor at 100kHz necessary to
generate a core loss equal to 10% of the total losses for a 40°C temperature
rise. De-rating of the Irms is required to prevent excessive temperature rise.

0.0325
0.0403
0.0870
0.0977
0.1527
0.1990
0.2387
0.3318
0.3620
0.5766
0.8332
1.29
1.55
2.36
2.62

Volt (5)
μ-Sec
typ.
2.45
3.15
4.55
5.25
6.65
7.35
8.75
10.15
10.85
13.65
16.45
19.95
24.15
29.05
31.85

OCL (1)
+/-20%
(μH)
1.96
3.24
6.76
9.00
14.44
17.64
25.00
33.64
38.44
60.84
88.36
130.0
190.4
275.6
331.2

Series Ratings
I rms (2) I sat (3) DCR Ω (4)
Amperes Amperes
typ.
1.39
1.25
0.847
0.800
0.640
0.560
0.512
0.434
0.416
0.329
0.274
0.220
0.201
0.163
0.154

2.17
1.69
1.17
1.01
0.800
0.724
0.608
0.524
0.490
0.390
0.323
0.267
0.220
0.183
0.167

0.1298
0.1611
0.3481
0.3908
0.6106
0.7959
0.9548
1.33
1.45
2.31
3.33
5.18
6.21
9.43
10.49

Volt (5)
μ-Sec
typ.
4.90
6.30
9.10
10.5
13.3
14.7
17.5
20.3
21.7
27.3
32.9
39.9
48.3
58.1
63.7

Part number definition:
First 3 characters = Product code and size.
Last 3 characters = Inductance in uH. R = Decimal point. If no R is present, third
character = # of zeros.
SDQ12-XXX-R
SDQ12 = Product code and Size
XXX = Inductance in uH, R = Decimal point
If no R is present, third character = # of zeros.
-R suffix indicated RoHS compliant

PM-108

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SDQ Series
Low Profile Dual Winding
Shielded Inductor/Transformer

Part Number

Rated
Inductance
(μH)
0.47
0.82
1
1.5
2.2
3.3
4.7
6.8
8.2
10
15
22
33
47
68
82
100
150
220
330
470
680
820
1000

SDQ25-R47-R
SDQ25-R82-R
SDQ25-1R0-R
SDQ25-1R5-R
SDQ25-2R2-R
SDQ25-3R3-R
SDQ25-4R7-R
SDQ25-6R8-R
SDQ25-8R2-R
SDQ25-100-R
SDQ25-150-R
SDQ25-220-R
SDQ25-330-R
SDQ25-470-R
SDQ25-680-R
SDQ25-820-R
SDQ25-101-R
SDQ25-151-R
SDQ25-221-R
SDQ25-331-R
SDQ25-471-R
SDQ25-681-R
SDQ25-821-R
SDQ25-102-R

Part
Marking
A
B
C
D
E
F
G
H
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y

OCL (1)
+/-20%
(μH)
0.392
0.648
0.97
1.35
2.31
2.89
5
6.73
8.71
9.8
14.79
22.47
33.8
47.43
69.19
81.61
98.57
150.2
223.1
329.7
472.4
677.4
824.3
1008.2

Parallel Ratings
I rms (2) I sat (3) DCR Ω (4)
Amperes Amperes
typ.
3.71
3.37
3.15
2.97
2.67
2.50
1.96
1.84
1.57
1.53
1.24
1.01
0.812
0.749
0.603
0.580
0.499
0.408
0.326
0.292
0.243
0.197
0.186
0.160

6.43
5.00
4.09
3.46
2.65
2.37
1.80
1.55
1.36
1.29
1.05
0.849
0.692
0.584
0.484
0.446
0.405
0.328
0.269
0.222
0.185
0.155
0.140
0.127

0.0181
0.0221
0.0252
0.0283
0.0351
0.0399
0.0653
0.0741
0.1015
0.1068
0.1632
0.2431
0.3795
0.4461
0.6865
0.7435
1.00
1.50
2.36
2.93
4.25
6.45
7.25
9.82

Volt (5)
μ-Sec
typ.
2.31
2.97
3.63
4.29
5.61
6.27
8.25
9.57
10.9
11.6
14.2
17.5
21.5
25.4
30.7
33.3
36.6
45.2
55.1
67.0
80.2
96.0
106
117

Series Ratings
I rms (2) I sat (3) DCR Ω (4)
Amperes Amperes
typ.

OCL (1)
+/-20%
(μH)
1.57
2.59
3.87
5.41
9.25
11.55
20.00
26.91
34.85
39.20
59.17
89.89
135.2
189.7
276.8
326.4
394.3
600.6
892.4
1318.7
1889.6
2709.8
3297.3
4032.8

1.86
1.68
1.58
1.49
1.34
1.25
0.98
0.918
0.785
0.765
0.619
0.507
0.406
0.374
0.302
0.290
0.249
0.204
0.163
0.146
0.121
0.098
0.093
0.080

3.21
2.50
2.05
1.73
1.32
1.18
0.900
0.776
0.682
0.643
0.523
0.425
0.346
0.292
0.242
0.223
0.203
0.164
0.135
0.111
0.093
0.077
0.070
0.063

Volt (5)
μ-Sec
typ.
4.62
5.94
7.26
8.58
11.2
12.5
16.5
19.1
21.8
23.1
28.4
35.0
42.9
50.8
61.4
66.7
73.3
90.4
110
134
160
192
212
234

0.0725
0.0883
0.1007
0.1130
0.1402
0.1595
0.2612
0.2964
0.4059
0.4273
0.6526
0.9724
1.52
1.78
2.75
2.97
4.02
6.00
9.42
11.71
16.99
25.78
28.99
39.26

Part number definition:
First 3 characters = Product code and size.
Last 3 characters = Inductance in uH. R = Decimal point. If no R is present, third
character = # of zeros.

1) Test Parameters: 100kHz,.0.25 Vrms 0.0Adc
2) Rms current for approximately ΔT of 40°C without core loss. It is recommended
that the temperature of the part not to exceed 125°C. De-rating is necessary for
AC currents
3) Peak current for approximately 30% rolloff @20°C
4) DCR limits @20°C
5) Applied Volt-Time product (V-μS) across the inductor at 100kHz necessary to
generate a core loss equal to 10% of the total losses for a 40°C temperature
rise. De-rating of the Irms is required to prevent excessive temperature rise.

SDQ12-XXX-R
SDQ12 = Product code and Size
XXX = Inductance in uH, R = Decimal point
If no R is present, third character = # of zeros.
-R suffix indicated RoHS compliant

Mechanical Diagrams
TOP VIEW

SIDE VIEW

BOTTOM VIEW
1.5 typ ref

4

1

4

3
2.975

1.5 Typ.

1

4 Ref.

HT
1.2mm max
2.5mm max

HT

5.95

1

4

2

3 2.975
2.975

R2.250
2.975

5.15

3

2

5.950

R2.250

1.02

2.575

5.2
Max

4 PAD LAYOUT

2 PAD LAYOUT

TRANSFORMER
1

4

1

3

2

4

5.950
2
PARALL EL

3
SERIES

A) Part marking: Line 1 (1st digit inductance value per part marking designator in chart above)
(2nd digit is a bi-weekly production date code)
(3rd digit is the last digit of the year produced)
Line 2: xx (indicates the product size code)

LOW PROFILE SHIELDED DRUM (SDQ)

3

2

2

5.2
Max

Part marking
(Note A)

Series
SDQ12
SDQ25

SCHEMATIC

RECOMMENDED PCB LAYOUT

1

Pin #1 identifier

PM-109

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SDQ Series
Low Profile Dual Winding
Shielded Inductor/Transformer
Packaging Information

4.00

SDQ12 Series

2.00

Pin #1 indicator

1.5 Dia.
min.

1.5 Dia.
+0.1/-0.0

1.75

A

ACTUAL SIZE
SDQ12

4
Bo

12.0
+/-0.3

1

5.50

3

Ao=5.45 mm
Bo=5.45 mm
Ko=2.00 mm

2

Ko
Ao

Parts packaged on 13" Diameter reel,
3,800 parts per reel.

A

8.0

SECTION A-A

Direction of feed

SDQ25 Series

4.00

2.00

Pin #1 indicator

1.5 Dia
min.

1.5 Dia.
+0.1/-0.0

1.75

A

1

12.0
+/-0.3

Bo

2

Ao=5.45 mm
Bo=5.45 mm
Ko=2.70 mm

ACTUAL SIZE
SDQ25

4

Ko

5.50

3

Parts packaged on 13" Diameter reel,
2,900 parts per reel.

A

Ao

8.0

SECTION A-A

Direction of feed

Inductance Characteristics
OCL vs Isat
SDQ25

100

100

90

90

80

80

70

70

OCL (%)

OCL (%)

OCL vs Isat
SDQ12

60
50
40

60
50
40

30

30

20

20

10

10

0

0
0

10

20

30

40

50

60

70

80

90

100

110

120

0

10

% of Isat

20

30

40

50

60

70

80

90

100

110

120

% of Isat

Irms DERATING WITH CORE LOSS

LOW PROFILE SHIELDED DRUM (SDQ)

% of Losses from Irms (maximum)

Core Loss

% of Applied Volt-μSecond

PM-110

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD52 Series
High Power Density,
Low Profile, Shielded Inductors
Description
RoHS
2002/95/EC
• 125°C maximum total temperature operation
• Octagonal shape shielded drum core
• 2mm max height
• Inductance range from 1.2uH to 100uH
• Current range from 3.14 to 0.35 Amps
• Ferrite shielded, low EMI
• Ferrite core material
Applications
• Digital cameras, CD players, cellular phones, and PDAs
• PCMCIA cards
• GPS systems
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating ambient temperature range: -40°C to +125°C
(range is application specific).
• Solder reflow temperature: +260°C max. for 10 seconds
max.
Part Number

Rated
Inductance
(μH)
1.20
2.20
3.50
4.70
6.80
10.0
15.0
22.0
27.0
33.0
47.0
68.0
100
150

SD52-1R2-R
SD52-2R2-R
SD52-3R5-R
SD52-4R7-R
SD52-6R8-R
SD52-100-R
SD52-150-R
SD52-220-R
SD52-270-R
SD52-330-R
SD52-470-R
SD52-680-R
SD52-101-R
SD52-151-R

OCL (1)
+/-20%
(μH)
1.20
2.20
3.50
4.70
6.80
10.0
15.0
22.0
27.0
33.0
47.0
68.0
100
150

Packaging
• Supplied in tape and reel packaging, 3500 per reel

Part
Marking

Irms (2)
Amperes

Isat (3)
Amperes

A
B
C
D
E
F
G
H
J
K
L
M
N
O

2.33
1.98
1.73
1.63
1.39
1.11
0.97
0.86
0.73
0.70
0.58
0.47
0.39
0.31

3.14
2.30
1.82
1.64
1.28
1.11
0.88
0.73
0.65
0.61
0.50
0.42
0.35
0.28

(1) Open Circuit Inductance Test Parameters: 100KHz, 0.25Vrms, 0.0Adc.
(2) RMS current for an approximate ΔT of 40°C without core loss. It is recommended that the temperature of the part not exceed 125°C.
(3) Peak current for approximate 30% roll off at 20°C.

DCR (4)
(Ω)
Typ.
0.0279
0.0385
0.0503
0.0568
0.0777
0.1215
0.1618
0.2042
0.2864
0.3074
0.4465
0.6829
1.0000
1.6100

Volt
u-sec
Typ.
1.49
2.03
2.57
2.84
3.65
4.19
5.27
6.35
7.16
7.70
9.32
11.21
13.37
17.00

(4) DCR limits @ 20°C.
5) Applied Volt-Time product (V-uS) across the inductor at 100kHz necessary to
generate a core loss equal to 10% of the total losses for 40°C temperature rise.

Mechanical Diagrams
BOTTOM VIEW

SD52 Series

1
TOP VIEW

RECOMMENDED PCB LAYOUT
5.2
2 max

Pin #1 indicator
Part marking
(See note A)
0.65
±0.10

5.2 max
m

1.3
2 plcs

SCHEMATIC

LOW PROFILE SHIELDED DRUM (SD52)

5.6 max
m

1

2.0
2 plcs

2

2

6.0

SIDE VIEW
2.0 max
m

A) Part Marking: Line 1: (1st digit indicates the inductance value per part marking
designator in chart above)
(2nd digit is a bi-weekly production date code)
(3rd digit is the last digit of the year produced)
Line 2: 52 (indicates the product size code)

PM-111

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SD52 Series
High Power Density,
Low Profile, Shielded Inductors
Packaging Information

4.00

SD52 Series

2.00 ± 0.05

1.5 Dia
min.

1.5 Dia.
+0.1/-0.0

1.75

A

2

3.0

10.2
0

B
Bo

12.0
+/-0.3
0

ACTUAL SIZE
SD52

5.50

Ko

Ao=5.72mm
Bo=5.72mm
Ko=2.30mm

A

A
Ao

80
8.0

SECTION A-A

Parts packaged on 13" Diameter reel,
3,500 parts per reel.

Direction of feed

Dimensions are in millimeters.

DC Current vs. Temperature
SD52-101
100.0

90.0

90.0

Temperature Rise (Deg. C)

Temperature Rise (Deg. C)

SD52-1R2
100.0

80.0
70.0
60.0
50.0
40.0
30.0
20.0

80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0

10.0

0.0
0.00

0.0
0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

0.10

0.20

Idc (A)

0.30

0.40

0.50

0.60

0.70

Idc (A)

Inductance Characteristics

OCL vs Isat
SD52

100
90
80

OCL (%)

70
60
50
40
30

LOW PROFILE SHIELDED DRUM (SD52)

20
10
0
0

10

20

30

40

50

60

70

80

90

100

110

120

130

140

% of Isat

PM-112

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SD52 Series
High Power Density,
Low Profile, Shielded Inductors
Core Loss

% of Losses from Irms (maximum)

Irms DERATING WITH CORE LOSS

% of p
Aplied Volt-μS
econd

LOW PROFILE SHIELDED DRUM (SD52)

PM-113

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD53 Series
Low Profile, Shielded Inductors
Description
RoHS
2002/95/EC
• 125°C maximum total temperature operation
• Octagonal shape utilizes board space
• 5.2mm x 5.2mm x 3.0mm surface mount package
• Shielded drum core reduces EMI
• Ferrite core material
• Inductance range from 1.1uH to 100uH
• Current range from 4.08 Amps to 0.44 Amps
Applications
• High Power LED driver
• White LED and OLED displays
• DSL modems, digital cameras
• Buck, Boost Inductor
• Cellular phones, Smart phones
• MP3 players, Digital radio player
• PDA, Palmtop, and wireless handhelds
• Battery power, TFT - LCD Bias supply
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating temperature range: -40°C to +125°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
maximum
Part Number

SD53-1R1-R
SD53-2R0-R
SD53-3R3-R
SD53-4R7-R
SD53-6R8-R
SD53-100-R
SD53-150-R
SD53-220-R
SD53-330-R
SD53-470-R
SD53-680-R
SD53-101-R

Rated
Inductance
(μH)
1.10
2.00
3.30
4.70
6.80
10.0
15.0
22.0
33.0
47.0
68.0
100

Packaging
• Supplied in tape and reel packaging, 2600 per reel

OCL (1)
μH ± 20%

Part
Marking

Irms (2)
Amperes

Isat (3)
Amperes

1.10
2.00
3.30
4.70
6.80
10.0
15.0
22.0
33.0
47.0
68.0
100

A
B
C
D
E
F
G
H
I
J
K
L

3.25
2.64
2.26
2.01
1.65
1.41
1.10
0.81
0.75
0.64
0.52
0.44

4.80
3.30
2.60
2.10
1.85
1.40
1.10
0.94
0.76
0.64
0.58
0.45

(1) Open Circuit Inductance Test Parameters: 100kHz, 0.1V, 0.0Adc.
(2) Irms: DC current for an approximate ΔT of 40°C without core loss. Derating is
necessary for AC currents. PCB layout, trace thickness and width, air-flow, and
proximity of other heat generating components will affect the temperature rise. It
is recommended that the temperature of the part not exceed 125°C under worst
case operating conditions verified in the end application.
(3) Isat Amperes peak for approximately 30% rolloff (@25°C)

DCR
Ω @20°C
(Typical)
0.017
0.023
0.029
0.039
0.059
0.077
0.122
0.179
0.221
0.303
0.452
0.689

DCR
Ω @20°C
(Maximum)
0.020
0.027
0.034
0.045
0.068
0.090
0.142
0.208
0.257
0.352
0.525
0.801

K-factor
(4)
48
35
28
21
20
15
12
10
8
7
6
5

(4) K-factor: Used to determine B p-p for core loss (see graph).
B p-p = K*L*ΔI, B p-p(mT), K: (K factor from table), L: (Inductance in uH),
ΔI (Peak to peak ripple current in Amps).
(5) Part Number Definition: SD53-xxx-R
SD53 = Product code and size; -xxx = Inductance value in uH;
R = decimal point; If no R is present, third character = # of zeros.
-R suffix = RoHS compliant

LOW PROFILE SHIELDED DRUM (SD53)

Mechanical Diagrams

Dimensions are in millimeters.
Note A. Part Marking:
4 Digit Marking: Line 1: (1st digit: Indicates inductance value per Part Marking Designator in chart above); (2nd digit: Bi-weekly production date code);
(3rd digit: Last digit of the year produced), (4th digit: Manufacturing code). Line 2: 53 (Indicates the product size code)

PM-114

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SD53 Series
Low Profile, Shielded Inductors
Packaging Information

Parts packaged on 13" Diameter reel,
2,600 parts per reel.

Core Loss
10

1

1MH z

500kH z
300kH z
200kH z

Core Loss (W)

0.1

100kH z
0.01

0.001

0.0001

0.00001

0.000001
1

10

B p -p (m T )

100

1000

LOW PROFILE SHIELDED DRUM (SD53)

PM-115

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SD53 Series
Low Profile, Shielded Inductors
Temperature Rise vs. Loss

LOW PROFILE SHIELDED DRUM (SD53)

Inductance Characteristics

PM-116

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SD6020 Series
Low Profile Power Inductors
Description
RoHS
2002/95/EC
• 125°C maximum temperature operation
• Low profile surface mount inductors
• 6.0mm x 6.0mm x 2.0mm shielded drum core
• Ferrite core material
• Inductance range from 4.1uH to 100uH
• Current range from 2.0 Amps to 0.36 Amps
• Frequency range up to 1MHz
Applications
• Palmtop Computers
• Digital Cameras
• Digital Cordless Phones, PCS Phones
• Cable/DSL Modems, PC Cards
• Wireless Handsets, Hand-Held Instruments
• Battery Backup/power
• DC-DC converters, Buck/Boost regulators
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating temperature range: -40°C to +125°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
maximum
Part Number

SD6020-4R1-R
SD6020-5R4-R
SD6020-6R2-R
SD6020-8R9-R
SD6020-100-R
SD6020-120-R
SD6020-150-R
SD6020-180-R
SD6020-220-R
SD6020-270-R
SD6020-330-R
SD6020-390-R
SD6020-470-R
SD6020-560-R
SD6020-680-R
SD6020-820-R
SD6020-101-R

Rated
Inductance
(μH)
4.1
5.4
6.2
8.9
10
12
15
18
22
27
33
39
47
56
68
82
100

Packaging
• Supplied in tape and reel packaging, 2600 per reel

OCL (1)
μH ± 30%

Irms (2)
Amperes

Isat (3)
Amperes

3.9
5.5
6.5
8.5
9.7
11
13
16
20
27
29
37
45
55
68
80
94

2.22
1.80
1.63
1.47
1.39
1.31
1.07
1.10
0.94
0.82
0.76
0.63
0.61
0.57
0.50
0.48
0.42

1.95
1.60
1.40
1.25
1.20
1.10
0.97
0.85
0.80
0.75
0.65
0.57
0.54
0.50
0.43
0.41
0.36

DCR
mΩ@20°C
(Maximum)
57.0
76.0
96.0
116.0
124.0
138.0
196.0
210.0
290.0
330.0
385.0
500.0
595.0
618.0
840.0
978.0
1200.0

K-factor
(4)
28.5
24.0
22.2
19.3
18.1
17.1
15.4
13.9
12.7
10.9
10.5
9.2
8.2
7.8
6.7
6.3
5.8

(4) K-factor: Used to determine B p-p for core loss (see graph).
B p-p = K*L*ΔI, B p-p(mT), K: (K factor from table), L: (Inductance in uH),
ΔI (Peak to peak ripple current in Amps).
(5) Part Number Definition: SD6020-xxx-R
SD6020 = Product code and size; -xxx = Inductance value in uH;
R = decimal point; If no R is present, third character = # of zeros.
-R suffix = RoHS compliant

PM-117

LOW PROFILE SHIELDED DRUM (SD6020)

(1) Open Circuit Inductance Test Parameters: 100kHz, 0.1V, 0.0Adc.
(2) Irms: DC current for an approximate ΔT of 40°C without core loss. Derating is
necessary for AC currents. PCB layout, trace thickness and width, air-flow, and
proximity of other heat generating components will affect the temperature rise. It
is recommended that the temperature of the part not exceed 125°C under worst
case operating conditions verified in the end application.
(3) Isat Amperes peak for 35% rolloff (@25°C)

DCR
mΩ@20°C
(Typical)
47.5
63.3
80.0
96.7
103.3
115.0
163.3
175.0
241.7
275.0
320.8
416.7
495.8
515.0
700.0
815.0
1000.0

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD6020 Series
Low Profile Power Inductors
Mechanical Diagrams
BOTTOM VIEW

TOP VIEW

SCHEMATI C

RECOMMENDED PCB LAYOUT

FRONT VIEW

6.0 max.

6.3
2.0 max.

1

1

2.2
2.0 5.5

LEFT VIEW

6.0 max.

XXX
wwlly R

2

2
5.5

2
Dimensions are in millimeters.

xxx = Inductance value in uH. R = decimal point. If no R is present third character = #0f zeros.
wwllyy = Date code, R = Revision level.
1.5 dia
+0.1/-0.0

Packaging Information

4.0

1.5 dia
min

A
1.75

2.0

7.5
6.3

Bo

12.0

XXX
wwlly R

B1

A1
Ao

Ko

SECTION A-A

8.0

Ao=6.8 mm
Bo=6.8 mm
A1=5.8 mm
B1=5.8 mm
Ko=2.2 mm

A
User direction of feed
Parts packaged on 13" Diameter reel,
2,600 parts per reel.

Core Loss
300kHz

1
1MHz

500kHz

200kHz
100kHz

LOW PROFILE SHIELDED DRUM (SD6020)

Core Loss (W)

0.1

0.01

0.001

0.0001
1

10

100

1000

Bp-p (mT)

PM-118

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SD6020 Series
Low Profile Power Inductors
Temperature Rise vs. Loss
160.00

Temperature Rise (°C)

140.00
120.00
100.00
80.00
60.00
40.00
20.00
0.00
0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.80

0.90

1.00

Total Loss (W)

Inductance Characteristics

OCL Vs. Isat

120%
100%

% of OC

80%
60%
40%

+85 Deg. C
+25 Deg. C
- 40 Deg. C

20%
0%
0%

20%

40%

60%

80%

100%

120%

% of Isat
LOW PROFILE SHIELDED DRUM (SD6020)

PM-119

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SD6030 Series
Low Profile Power Inductors
Description
RoHS
• 125°C maximum total temperature operation
2002/95/EC
• Low profile surface mount inductors
• 6.0mm x 6.0mm x 3.0mm surface mount package
• Ferrite core material
• Shielded drum core reduces EMI
• Inductance range from 2.7μH to 680μH
• Current range from 4.08 Amps to 0.16 Amps
• Frequency range up to 1MHz
Applications
• Notebook computers, Digital cameras
• DSL modems, PDA’s
• High Power LED driver
• MP3, CD players, GPS receivers
• Cellular phones, Smart phones
• Wireless notebook adapters
• Battery power, TFT-LCD Bias supplies
• PCMCIA, Cardbus32, MiniPCI cards
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating temperature range: -40°C to +125°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
maximum

LOW PROFILE SHIELDED DRUM (SD6030)

Part Number

SD6030-2R7-R
SD6030-3R3-R
SD6030-4R2-R
SD6030-5R0-R
SD6030-5R8-R
SD6030-7R8-R
SD6030-100-R
SD6030-120-R
SD6030-150-R
SD6030-180-R
SD6030-220-R
SD6030-270-R
SD6030-330-R
SD6030-360-R
SD6030-440-R
SD6030-520-R
SD6030-680-R
SD6030-820-R
SD6030-101-R
SD6030-121-R
SD6030-151-R
SD6030-181-R
SD6030-221-R
SD6030-271-R
SD6030-331-R
SD6030-391-R
SD6030-471-R
SD6030-561-R
SD6030-681-R

Rated
Inductance
(μH)
2.7
3.3
4.2
5.0
5.8
7.8
10
12
15
18
22
27
33
36
44
52
68
82
100
120
150
180
220
270
330
390
470
560
680

Packaging
• Supplied in tape and reel packaging, 2600 per reel

OCL (1)
μH ± 30%

Irms (2)
Amperes

Isat (3)
Amperes

2.7
3.3
4.1
4.9
5.8
7.8
9.3
11.3
14.1
17.1
20.4
26.0
32.4
34.4
44.0
52.0
65.6
81.6
94.4
110.1
144.5
175.7
210.9
264.2
313.5
373.7
460.0
546.2
659.4

4.08
3.54
3.11
2.81
2.58
2.38
2.15
1.99
1.71
1.65
1.57
1.31
1.26
1.19
1.10
0.99
0.92
0.80
0.76
0.70
0.64
0.55
0.50
0.44
0.38
0.35
0.33
0.30
0.27

2.60
2.40
2.20
1.90
1.80
1.60
1.30
1.20
1.10
1.00
0.90
0.85
0.75
0.70
0.62
0.58
0.52
0.46
0.42
0.40
0.35
0.32
0.30
0.27
0.25
0.22
0.20
0.18
0.16

(1) Open Circuit Inductance Test Parameters: 100kHz, 0.1V, 0.0Adc.
(2) Irms: DC current for an approximate ΔT of 40°C without core loss. Derating is
necessary for AC currents. PCB layout, trace thickness and width, air-flow, and
proximity of other heat generating components will affect the temperature rise. It
is recommended that the temperature of the part not exceed 125°C under worst
case operating conditions verified in the end application.
(3) Isat Amperes peak for 35% rolloff (@25°C)

DCR
mΩ@20°C
(Typical)
13
18
23
28
33
39
48
56
76
82
90
130
140
157
185
226
263
343
385
517
608
817
1000
1300
1733
2083
2250
2767
3458

DCR
mΩ@20°C
(Maximum)
18
24
31
38
45
53
65
76
103
110
122
175
189
212
250
305
355
463
520
620
730
980
1200
1560
2080
2500
2700
3320
4150

K-factor
(4)
34
30
27
24
22
19
17
16
14
13
12
11
9.3
8.7
7.9
7.2
6.5
5.9
5.6
5.6
5.0
4.5
4.0
3.6
3.3
3.0
2.8
2.5
2.3

(4) K-factor: Used to determine B p-p for core loss (see graph).
B p-p = K*L*ΔI, B p-p(mT), K: (K factor from table), L: (Inductance in uH),
ΔI (Peak to peak ripple current in Amps).
(5) Part Number Definition: SD6030-xxx-R
SD6030 = Product code and size; -xxx = Inductance value in uH;
R = decimal point; If no R is present, third character = # of zeros.
-R suffix = RoHS compliant

PM-120

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD6030 Series
Low Profile Power Inductors
Mechanical Diagrams

Dimensions are in millimeters.
xxx = Inductance value in uH. R = decimal point. If no R is present third character = # of zeros.
wwllyy = Date code, R = Revision level.

Packaging Information

Parts packaged on 13" Diameter reel,
2,600 parts per reel.

Core Loss

1
1MHz

500kHz

300kHz
200kHz
100kHz

0.01

0.001

0.0001
1

10

100

1000

Bp-p (mT)

PM-121

LOW PROFILE SHIELDED DRUM (SD6030)

Core Loss (W)

0.1

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD6030 Series
Low Profile Power Inductors
Temperature Rise vs. Loss

LOW PROFILE SHIELDED DRUM (SD6030)

Inductance Characteristics

PM-122

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD7030 Series
Low Profile Power Inductors
Description
RoHS
• 125°C maximum total temperature operation
2002/95/EC
• Low profile surface mount inductors
• 7.0mm x 7.0mm x 3.0mm shielded drum core
• Ferrite core material
• Inductance range from 3.3μH to 680μH
• Current range from 3.7 Amps to 0.21 Amps
• Frequency range up to 1MHz
Applications
• PDA’s, Wireless handsets
• Handheld computers
• MP3 players, CD players, organizers
• Portable computers, GPS receivers
• ADSL/DSL/Cable modems
• Buck and Boost inductor
• Battery power, Li-lon, 2-cell
• Digital still camera
• White LED driver
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating temperature range: -40°C to +125°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
maximum
Part Number

OCL (1)
μH ± 30%

Irms (2)
Amperes

Isat (3)
Amperes

3.3
4.1
4.9
5.8
7.0
7.8
10.0
11.5
14.6
17.3
21.0
24.9
30.0
39.7
43.4
54.4
66.6
81.4
95.5
115.2
145
174
211
264
317
381
460
561.0
677.2

3.7
3.4
3.2
2.8
2.3
2.2
2.1
1.9
1.7
1.7
1.4
1.3
1.2
1.1
1.1
0.99
0.85
0.82
0.70
0.67
0.57
0.54
0.51
0.44
0.38
0.36
0.34
0.29
0.28

3.00
2.60
2.40
2.25
2.10
1.85
1.70
1.55
1.40
1.32
1.20
1.05
0.97
0.86
0.80
0.73
0.65
0.60
0.54
0.50
0.44
0.40
0.36
0.33
0.30
0.27
0.25
0.23
0.21

(1) Open Circuit Inductance Test Parameters: 100kHz, 0.1V, 0.0Adc.
(2) Irms: DC current for an approximate ΔT of 40°C without core loss. Derating is
necessary for AC currents. PCB layout, trace thickness and width, air-flow, and
proximity of other heat generating components will affect the temperature rise. It
is recommended that the temperature of the part not exceed 125°C under worst
case operating conditions verified in the end application.
(3) Isat Amperes peak for approximately 35% rolloff (@25°C)

DCR
mΩ@25°C
(Typical)
20
22
26
29
45
48
54
58
70
79
107
118
138
175
198
231
253
325
446
629
715
805
1102
1259
1438
1857
2150
2857
3206

DCR
mΩ@25°C
(Maximum)
24
27
31
35
54
58
65
70
84
95
128
142
165
210
238
277
304
390
535
755
858
966
1322
1475
1725
2228
2581
3428
3847

K-factor
(4)
22
19
17
16
13
12
11
10
9.3
8.8
7.6
6.9
6.4
5.7
5.3
4.9
4.3
4.0
3.6
3.3
2.9
2.7
2.4
2.2
2.0
1.8
1.7
1.5
1.4

(4) K-factor: Used to determine B p-p for core loss (see graph).
B p-p = K*L*ΔI, B p-p(mT), K: (K factor from table), L: (Inductance in uH),
ΔI (Peak to peak ripple current in Amps).
(5) Part Number Definition: SD7030-xxx-R
SD7030 = Product code and size; -xxx = Inductance value in uH;
R = decimal point; If no R is present, third character = # of zeros.
-R suffix = RoHS compliant

PM-123

LOW PROFILE SHIELDED DRUM (SD7030)

SD7030-3R3-R
SD7030-3R9-R
SD7030-5R0-R
SD7030-6R0-R
SD7030-7R3-R
SD7030-8R0-R
SD7030-100-R
SD7030-120-R
SD7030-150-R
SD7030-180-R
SD7030-220-R
SD7030-260-R
SD7030-300-R
SD7030-390-R
SD7030-440-R
SD7030-560-R
SD7030-680-R
SD7030-820-R
SD7030-101-R
SD7030-121-R
SD7030-151-R
SD7030-181-R
SD7030-221-R
SD7030-271-R
SD7030-331-R
SD7030-391-R
SD7030-471-R
SD7030-561-R
SD7030-681-R

Rated
Inductance
(μH)
3.3
3.9
5.0
6.0
7.3
8.0
10
12
15
18
22
26
30
39
44
56
68
82
100
120
150
180
220
270
330
390
470
560
680

Packaging
• Supplied in tape and reel packaging, 1500 per reel

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD7030 Series
Low Profile Power Inductors
Mechanical Diagrams

Dimensions are in millimeters.
xxx = Inductance value in uH. R = decimal point. If no R is present third character = # of zeros.
wwllyy = Date code, R = Revision level.

Packaging Information

Parts packaged on 13" Diameter reel,
1,500 parts per reel.

LOW PROFILE SHIELDED DRUM (SD7030)

Core Loss

PM-124

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD7030 Series
Low Profile Power Inductors
Temperature Rise vs. Loss

Inductance Characteristics

LOW PROFILE SHIELDED DRUM (SD7030)

PM-125

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD8328 Series
Low Profile Power Inductors
Description
RoHS
2002/95/EC
• 125°C maximum temperature operation
• Low profile surface mount inductor
• 8.3mm x 9.5mm x 3.0mm shielded drum core
• Ferrite core material
• Inductance range from 2.7μH to 100μH
• Current range from 6.6 Amps to 0.8 Amps
• Frequency range up to 1MHz
Applications
• Buck or Boost inductor
• Noise filtering output filter chokes
• Notebook power/display
• LCD Monitors/Displays/Televisions
• Battery chargers, LCD bias supplies
• Battery and Industrial power systems
• Computer, DVD players
• Portable power devices, DC-DC converters
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating temperature range: -40°C to +125°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
maximum
Part Number

SD8328-2R5-R
SD8328-3R3-R
SD8328-4R7-R
SD8328-7R3-R
SD8328-100-R
SD8328-150-R
SD8328-220-R
SD8328-330-R
SD8328-470-R
SD8328-680-R
SD8328-101-R

Rated
Inductance
(μH)
2.5
3.3
4.7
7.3
10
15
22
33
47
68
100

OCL (1)
μH±30%

Irms(2)
Amperes

Isat (3)
Amperes

2.7
3.4
5.0
7.6
9.1
14.5
21.1
31.9
44.9
64.2
97.0

6.6
6.1
4.5
3.4
3.3
2.35
1.85
1.45
1.30
0.98
0.80

4.5
4.0
3.6
2.9
2.6
2.0
1.7
1.4
1.2
1.0
0.8

(1) Open Circuit Inductance Test Parameters: 100kHz, 0.1V, 0.0Adc.
(2) Irms: DC current for an approximate ΔT of 40°C without core loss. Derating is
necessary for AC currents. PCB layout, trace thickness and width, air-flow, and
proximity of other heat generating components will affect the temperature rise. It
is recommended that the temperature of the part not exceed 125°C under worst
case operating conditions verified in the end application.
(3) Isat Amperes peak for approximately 35% rolloff (@25°C)

LOW PROFILE SHIELDED DRUM (SD8328)

Packaging
• Supplied in tape and reel packaging, 1280 per reel

DCR (Ω)
mΩ @20°C
(Typical)
12
14
19
30
36
53
76
120
150
220
330

DCR (Ω)
mΩ @20°C
(Maximum)
15.6
18.0
24.7
39
45
69
99
156
194
286
430

K-factor
(4)
43
33
23
15
11
7.2
4.9
3.3
2.3
1.6
1.1

(4) K-factor: Used to determine B p-p for core loss (see graph).
B p-p = K*L*ΔI, B p-p(mT), K: (K factor from table), L: (Inductance in μH),
ΔI (Peak to peak ripple current in Amps).
(5) Part Number Definition: SD8328-xxx-R
SD8328 = Product code and size; -xxx = Inductance value in uH;
R = decimal point; If no R is present, third character = # of zeros.
-R suffix = RoHS compliant

Mechanical Diagrams
BOTTOM VIEW

TOP VIEW

1

2.5
typ

8.3
max

FRONT VIEW

RECOMMENDED PCB LAYOUT

SCHEMATIC

2.9

1.2
typ

3.0
max

1
1.8

XXX
wwlly R

9.5
max

6.3
typ

LEFT VIEW

5.7

2

2

Dimensions are in millimeters.
xxx = Inductance value in uH. R = decimal point. If no R is present third character = # of zeros. wwllyy = Date code, R = Revision level.

PM-126

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD8328 Series
Low Profile Power Inductors
Packaging Information

4.0

1.5 dia
+0.1/-0.0

1.5 dia
min

2.0

A
1.75

7.5
Bo

B1

16.0
XXX
wwlly R

A1

A

12.0

Ko
Ao

SECTION A-A
User direction of feed

Ao=9.5 mm
Bo=10.0 mm
A1=8.5 mm
B1=9.7 mm
Ko=3.2 mm

Parts packaged on 13" Diameter reel,
1,280 parts per reel.

Core Loss
10
500kHz
1MHz

300kHz
200kHz

1

Core Loss (W)

100kHz
0.1

0.01

0.001

0.0001
1

10

100

1000

Bp-p (mT)

LOW PROFILE SHIELDED DRUM (SD8328)

PM-127

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD8328 Series
Low Profile Power Inductors
Temperature Rise vs. Loss
160

Temperature Rise (ºC)

140
120
100
80
60
40
20
0
0.0

0.2

0.4

0.6

0.8

1.0

Total Power Loss (W)

Inductance Characteristics

OCL Vs. Isat

120.0%

100.0%

% OCL

80.0%

60.0%
+85 Deg.C

40.0%

+25 Deg.C
20.0%

-40 Deg.C

0.0%
0.0%

20.0%

40.0%

60.0%

80.0%

100.0%

120.0%

LOW PROFILE SHIELDED DRUM (SD8328)

% Isat

PM-128

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SD8350 Series
Shielded Power Inductors
Description
RoHS
2002/95/EC
• 125°C maximum total temperature operation
• Low profile surface mount inductor
• 8.3mm x 9.5mm x 4.5mm shielded drum core
• Ferrite core material
• Inductance range from 1.5μH to 100μH
• Current range from 9.1 Amps to 0.8 Amps
• Frequency range up to 1MHz
Applications
• Server/Notebook power
• High Power LED driver, Portable devices
• Base Station, Telecom, and Networking
• Battery Chargers, RAM power supply
• Industrial and Automotive power systems
• Noise filtering output filter chokes
• Buck/Boost converters, Output converters
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating temperature range: -40°C to +125°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
maximum
Part Number

SD8350-1R8-R
SD8350-3R9-R
SD8350-4R7-R
SD8350-6R8-R
SD8350-100-R
SD8350-150-R
SD8350-220-R
SD8350-330-R
SD8350-470-R
SD8350-680-R
SD8350-101-R

Rated
Inductance
(μH)
1.8
3.9
4.7
6.8
10
15
22
33
47
68
100

Packaging
• Supplied in tape and reel packaging, 750 per reel

OCL (1)
μH±30%

Irms(2)
Amperes

Isat (3)
Amperes

1.5
3.2
4.2
6.8
9.9
13.6
20.4
31.4
44.9
65.1
99.7

5.50
4.50
4.10
3.90
3.20
2.30
1.80
1.40
1.30
1.00
0.80

9.1
6.3
5.5
4.4
4.0
2.9
2.6
2.2
1.8
1.5
1.3

(1) Open Circuit Inductance Test Parameters: 100kHz, 0.1V, 0.0Adc.
(2) Irms: DC current for an approximate ΔT of 40°C without core loss. Derating is
necessary for AC currents. PCB layout, trace thickness and width, air-flow, and
proximity of other heat generating components will affect the temperature rise. It
is recommended that the temperature of the part not exceed 125°C under worst
case operating conditions verified in the end application.
(3) Isat Amperes peak for approximately 35% rolloff (@25°C)

DCR (Ω)
mΩ @20°C
(Typical)
11.8
16.2
18.5
20.8
31.4
45.0
63.5
111.4
130.0
200.8
308.0

DCR (Ω)
mΩ @20°C
(Maximum)
14.0
19.0
22.0
25.0
36.0
53.0
75.0
125.0
150.0
240.0
360.0

K-factor
(4)
16.0
9.6
8.5
7.6
6.3
5.3
4.4
3.5
2.9
2.4
2.0

(4) K-factor: Used to determine B p-p for core loss (see graph).
B p-p = K*L*ΔI, B p-p(mT), K: (K factor from table), L: (Inductance in μH),
ΔI (Peak to peak ripple current in Amps).
(5) Part Number Definition: SD8350-xxx-R
SD8350 = Product code and size; -xxx = Inductance value in uH;
R = decimal point; If no R is present, third character = # of zeros.
-R suffix = RoHS compliant

Mechanical Diagrams
RECOMM ENDED PCB LAYOUT
BOTTOM VIEW

2.5

8.3 max.

1

SCHEM ATIC

FRONT VIEW

2.9
4.5 max.

1.2

1

1.8

XX X
wwlly R

9.5 max.

6.3
LEFT VIEW

5.7

2

2

Dimensions are in millimeters.
xxx = Inductance value in uH. R = decimal point. If no R is present third character = # of zeros. wwllyy = Date code, R = Revision level.

PM-129

LOW PROFILE SHIELDED DRUM (SD8350)

TOP VIEW

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

SD8350 Series
Shielded Power Inductors
Packaging Information
1.5 dia
min

4.0

1.5 dia
+0.1/-0.0
2.0

A
1.75

7.5
Bo

B1

16.0
XX X
wwlly R

A1

A

12.0

Ko
Ao

SECTION A-A

User direction of feed

Ao=9.5 mm
Bo=10.0 mm
A1=8.5 mm

Parts packaged on 13" Diameter reel,
750 parts per reel.

B1=9.7 mm
Ko=4.6 mm

Core Loss
10
1MHz

300kHz
200kHz
100kHz

1

Core Loss (W)

500kHz

0. 1

0. 01

0. 001

0. 000 1
1

10

100

100 0

LOW PROFILE SHIELDED DRUM (SD8350)

Bp-p (mT)

PM-130

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SD8350 Series
Shielded Power Inductors
Temperature Rise vs. Loss
140

Temperature Rise (°C)

120
100
80
60
40
20
0
0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

Total Loss (W)

Inductance Characteristics

OCL Vs. Isat

120%

100%

% OCL

80%

60%
+85 Deg. C
+25 Deg. C
-40 Deg. C

40%

20%

0%
0%

20%

40%

60%

80%

100%

120%

140%

% Isat

LOW PROFILE SHIELDED DRUM (SD8350)

PM-131

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Description
RoHS
2002/95/EC
• Miniature size and rugged construction
• Low DCR and high efficiency
• Suited for IR and vapor reflow solder
• Designed for high shock environments
• Frequency range 1kHz to 2MHz
• Ferrite core material
Applications
• DC-DC converters
• Filter inductors
• Signal conditioning
• Energy storage applications
• Computer, pager and battery powered equipment
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating ambient temperature range: -40°C to +85°C
range is application specific. Temperature rise is
approximately 40°C at rated RMS current. Maximum
operating temperature is 125°C including ambient.
• Solder reflow temperature: +260°C max. for 10 seconds
max.
Part
Number

Inductance
μH
(Rated)
1.0
1.5
2.2
3.3
4.7
6.8
10
15
22
33
47
68
100
150

UP2.8B-1R0-R
UP2.8B-1R5-R
UP2.8B-2R2-R
UP2.8B-3R3-R
UP2.8B-4R7-R
UP2.8B-6R8-R
UP2.8B-100-R
UP2.8B-150-R
UP2.8B-220-R
UP2.8B-330-R
UP2.8B-470-R
UP2.8B-680-R
UP2.8B-101-R
UP2.8B-151-R

Packaging
• Supplied in tape and reel packaging, 1,750 per reel

OCL (1)
μH ± 20%

Irms (2)
Amperes

Isat (3)
Amperes

0.98
1.59
2.44
3.24
4.15
6.73
10
15
22
33
47
68
100
150

3.6
3.3
3.1
2.8
2.7
2.4
2.1
1.7
1.5
1.3
1.0
.89
.78
.62

8.0
6.4
5.2
4.5
3.9
3.2
2.7
2.2
1.7
1.5
1.2
1.0
.84
.74

1) Open Circuit Inductance Test Parameters: 100kHz, 0.250 Vrms, 0.0 Adc
2) RMS current, delta temp. of 40° C ambient temperature of 85° C

Recommended PCB Layout
2.92

TOP VIEW

9.4
max
Dimensions in Millimeters.
wwllyy = date code R = (revision level)
xxx = Inductance value per family chart

DCR (4)
Ohms
(Max.)
.0286
.0349
.0356
.0474
.0478
.067
.080
.120
.190
.250
.340
.480
.622
.971

3) Peak current for approximately 10% roll-off @ 20°C
4) Values @ 20° C

Mechanical Diagrams

UP2.8B
xxx
wwllyy R

UNSHIELDED DRUM CORE (UP2.8B) UNI-PAC™ 2.8B

UNI-PAC™ 2.8
Low Cost, Low Profile 2.8mm
Power Inductors (Surface Mount)

2.63
max

FRONT VIEW
9.4
max

7.37
12.9
max

2.8
max

2.79

Component View

PM-132

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Packaging Information

4.0
1.5 dia
+0.1/-0.0

2.0

1.5 dia
min

A

1.7

1

11.5
24.0
+/-0.3

Bo

UNSHIELDED DRUM CORE (UP2.8B) UNI-PAC™ 2.8B

UNI-PAC™ 2.8
Low Cost, Low Profile 2.8mm
Power Inductors (Surface Mount)

2

Ko

A
Ao

SECTION A-A

Ao=9.7mm
Bo=13.4mm
Ko=3.1mm

12.0
User direction of feed
Packaging Information:
Parts packaged on a
13" Dia. EIA-481 compliant reel.
1,750 parts per reel.

Inductance Characteristics

% of Initial Inductance

120
100
80
60
40
20
0
0

40

80

120

160

% of Isat

PM-133

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Description
RoHS
2002/95/EC
• Miniature size and rugged construction
• Designed for high shock environments
• Suited for IR and vapor reflow solder
• Frequency range 1kHz to 2MHz
• Ferrite core material
Applications
• Computer, pager and battery powered equipment
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating ambient temperature range: -40°C to +85°C
range is application specific. Temperature rise is
approximately 40°C at rated RMS current. Maximum
operating temperature is 125°C including ambient.
• Solder reflow temperature: +260°C max. for 10 seconds
max.
Part
Number

Inductance
μH
(Rated)
1.0
1.5
2.2
3.3
4.7
6.8
10
15
22
27
33
39
47
68
100

UP0.4C-1R0-R
UP0.4C-1R5-R
UP0.4C-2R2-R
UP0.4C-3R3-R
UP0.4C-4R7-R
UP0.4C-6R8-R
UP0.4C-100-R
UP0.4C-150-R
UP0.4C-220-R
UP0.4C-270-R
UP0.4C-330-R
UP0.4C-390-R
UP0.4C-470-R
UP0.4C-680-R
UP0.4C-101-R

Packaging
• Supplied in tape and reel packaging, 2,500 per reel

OCL (1)
μH ± 20%

Irms (2)
Amperes

Isat (3)
Amperes

1.16
1.49
2.27
3.22
4.95
7.06
9.53
14.5
21.8
27.5
32.2
39.0
46.5
68.2
102.5

2.88
2.58
2.15
1.89
1.55
1.30
1.16
0.95
0.76
0.69
0.64
0.59
0.53
0.45
0.37

3.33
2.94
2.38
2.00
1.61
1.35
1.16
0.94
0.77
0.68
0.63
0.57
0.53
0.43
0.35

1) Open Circuit Inductance Test Parameters: 100kHz, 0.250 Vrms, 0.0 Adc
2) RMS current, delta temp. of 40°C ambient temperature of 85°C

DCR (4)
Ohms
(Max)
0.030
0.034
0.050
0.060
0.088
0.128
0.156
0.250
0.360
0.480
0.560
0.650
0.820
1.10
1.58

3) Peak current for approximately 30% roll-off @ 20°C
4) Values @ 20°C

Mechanical Diagrams
TOP VIEW

RECOMMENDED PCB LAYOUT
4.06
1.4 (2x)

FRONT VIEW

1

yww
xxx

2

2.40 4.45
max max

2.92
max

1.00 ref
(2x)

2.9
(2x)

6.60
max

4.45
ref

Inductance
Characteristics

SCHEMATIC
1

2

COMPONENT VIEW

Dimensions in Millimeters.

yww = Date Code xxx = Inductance value per family chart

% of Initial Inductance

UNSHIELDED DRUM CORE (UP0.4C) UNI-PAC™ 0.4C

UNI-PAC™ 0.4C
Low Cost, Low Profile
Power Inductors (Surface Mount)

100%
80%
60%
40%
20%
0%
0%

20%

40%

60%

80% 100% 120% 140% 160%
% of Isat

PM-134

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Description
RoHS
2002/95/EC
• Miniature surface mount design with rugged
case to eliminate core breakage
• Inductance range from 0.470uH to 1000uH
• Current range up to 18.6 Amps peak
• Meets UL94V-0 flammability standard
• Ferrite core material
Applications
• PDA, computer, and flash memory programs
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating ambient temperature range: -40°C to +85°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
max.
Part
Number
UP2C-R47-R
UP2C-1R0-R
UP2C-1R5-R
UP2C-2R2-R
UP2C-3R3-R
UP2C-4R7-R
UP2C-6R8-R
UP2C-100-R
UP2C-150-R
UP2C-220-R
UP2C-330-R
UP2C-470-R
UP2C-680-R
UP2C-101-R
UP2C-151-R
UP2C-221-R
UP2C-331-R
UP2C-471-R
UP2C-681-R
UP2C-102-R

Inductance
μH
(rated)
0.470
1.0
1.5
2.2
3.3
4.7
6.8
10.0
15.0
22.0
33.0
47.0
68.0
100.0
150.0
220.0
330.0
470.0
680.0
1000.0

Packaging
• Supplied in tape and reel packaging, 900 per reel

OCL(1)
μH±20%

I RMS(2)
Amperes

I SAT(3)
Amperes

0.48
1.03
1.45
2.00
3.30
4.41
7.16
10.56
15.97
22.33
32.11
47.90
65.03
97.85
141.9
207.8
318.2
470.8
689.7
1080.0

12.2
9.80
8.10
7.50
5.90
5.62
4.42
3.61
3.17
2.61
2.16
1.77
1.57
1.26
1.04
0.82
0.67
0.56
0.46
0.38

18.6
11.8
10.0
8.67
6.84
6.20
4.82
3.94
3.17
2.65
2.20
1.83
1.53
1.24
1.02
0.85
0.70
0.58
0.48
0.40

Notes: (1) Open Circuit Inductance Test Parameters: 100KHz, .250Vrms, 0.0Adc.
(2) RMS current for an approximate ΔT of 40°C without core loss, at an
ambient temperature of 85˚C.
(3) Peak current for approximately 30% rolloff @ 20°C.

UNSHIELDED DRUM CORE (UP2C) UNI-PAC™ 2C

UNI-PAC™ 2C
Low Cost Power Inductors
(Surface Mount)

DCR(4)
mΩ
typ.
2.5
3.9
5.6
6.6
10.5
11.7
18.0
28.3
36.9
54.0
79.7
118.5
151.7
233.1
351.4
545.0
824.3
1191.4
1774.2
2657.1

Volts(5)
μS
(typ)
4.15
7.0
8.3
9.6
12.1
13.4
17.3
21.1
26.2
31.3
37.7
45.4
54.3
67.1
81.2
97.8
120
144
173
209

(4) DCR limits 20°C.
(5) Applied volt-time product (V-uS) across the inductor. This value represents the applied v-us at 300KHz necessary to generate a core loss
equal to 10% of the total losses for a 40° temperature rise.

Mechanical Diagrams
TOP VIEW

FRONT VIEW

PCB PAD LAYOUT
5.2

12.90
Max.

1

UP2C
xxx
wwllyy R

SIDE VIEW

SCHEMATIC

7.37
1

2.79

3.0ref
9.40
Max.

2.92

2

2.5max*
see note A

Dimensions in Millimeters.
wwllyy = (date code) R = revision level
xxx = Inductance value per family chart

COMPONENT VIEW

2

(A) 2.5mm max is width of copper at seating plane. The width above the seating
plane may exceed 2.5mm.

PM-135

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Packaging Information
4.0
1.5 dia
+0.1/-0.0

2.0

1.5 dia
min

A
1.7

1
11.5
24.0
+/-0.3

B0

ACTUAL SIZE
UNIPAC 2C

2

Ao=9.50mm
Bo=13.0mm
Ko=5.7mm

K0

A

A0

SECTION A-A

12.0
User direction of feed

Inductance Characteristics

Core Loss
IRMS DERATING WITH CORE LOSS
0
20
40
50
60

10
0K
Hz

50
0K

80

Hz
30
0K
Hz
20
0K
Hz

70

1M
Hz

% of Losses from Irms (maximum)

UNSHIELDED DRUM CORE (UP2C) UNI-PAC™ 2C

UNI-PAC™ 2C
Low Cost Power Inductors
(Surface Mount)

90
92
94
95
96
97
98

99
10

20

30

40

50

60

80

100

200

300

400 500 600

800 1000

% of Applied Volt-μ-Seconds

PM-136

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Description
RoHS
2002/95/EC
• Miniature surface mount design
• Inductance range from 0.470uH to 1000uH
• Current range from 19.2 to .47 Amps
• Maximum power density
• Ideal for applications requiring low inductance and high
current in a miniature package
• Modified standard products are available
• Protective case eliminates core breakage
• Meets UL 94V-0 flammability standard
• Ferrite core material
Applications
• DC-DC converters on board level and industrial products
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating ambient temperature range: -40°C to +85°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
max.
Part
Number
UP1B-R47-R
UP1B-1R0-R
UP1B-1R5-R
UP1B-2R2-R
UP1B-3R3-R
UP1B-4R7-R
UP1B-6R8-R
UP1B-100-R
UP1B-150-R
UP1B-220-R
UP1B-330-R
UP1B-470-R
UP1B-680-R
UP1B-101-R
UP1B-151-R
UP1B-221-R
UP1B-331-R
UP2B-R47-R
UP2B-1R0-R
UP2B-1R5-R
UP2B-2R2-R
UP2B-3R3-R
UP2B-4R7-R
UP2B-6R8-R
UP2B-100-R
UP2B-150-R
UP2B-220-R
UP2B-330-R
UP2B-470-R
UP2B-680-R
UP2B-820-R
UP2B-101-R
UP2B-151-R

Inductance
μH (rated)
0.47
1.0
1.5
2.2
3.3
4.7
6.8
10.0
15.0
22.0
33.0
47.0
68.0
100.0
150.0
220.0
330.0
0.47
1.0
1.5
2.2
3.3
4.7
6.8
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100.0
150.0

OCL(1)
μH±20%
0.569
1.20
1.61
2.62
3.79
5.15
6.87
11.00
16.00
23.50
36.00
48.50
73.52
112.67
152.40
223.10
331.90
0.595
1.00
1.46
2.56
3.23
4.77
6.63
9.73
15.43
22.50
33.13
48.65
68.17
84.1
102.60
150

Notes: (1) Open Circuit Inductance Test Parameters: 100KHz, .250Vrms, 0.0Adc.
(2) RMS current for an approximate ΔT of 40°C. at an ambient temperature
of 85˚C.

UNSHIELDED DRUM CORE (UP) UNI-PAC™

UNI-PAC™
Power Inductors
(Surface Mount)

NO
PROW AVAIL
TECT ABL
I VE E WI
CAS TH A
E
Packaging
• Supplied in tape and reel packaging, 900 (UP1B), 550
(UP2B), 450 (UP3B), and 275 (UP4B) per reel

I RMS(2)
Amperes
6.0
4.4
4.2
3.1
2.9
2.2
1.7
1.5
1.2
1.0
0.82
0.72
0.58
0.47
0.40
0.36
0.28
10.6
9.3
8.3
7.2
6.5
5.5
5.0
4.3
3.5
2.8
2.1
1.7
1.5
1.34
1.2
1.0

I SAT(3)
Amperes
7.7
5.3
4.5
3.5
3.0
2.6
2.2
1.9
1.5
1.2
0.99
0.87
0.67
0.53
0.46
0.38
0.31
11.4
9.9
7.9
6.1
5.1
4.2
3.6
3.3
2.4
2.0
1.7
1.4
1.2
1.03
0.95
0.77

DCR(4)
Ohms max.
0.0097
0.0177
0.0200
0.0363
0.0428
0.0544
0.0897
0.1107
0.1747
0.2541
0.3670
0.4740
0.7320
1.11
1.61
1.96
3.10
0.0049
0.0065
0.0081
0.0107
0.0128
0.0165
0.0202
0.0267
0.0410
0.0617
0.0917
0.1388
0.1787
0.2235
0.2707
0.4100

(3) Peak current for approximately 30% rolloff UP1B, 3B, 4B. 10% rolloff
UP2B @ 20°C
(4) DCR limits 20°C.

PM-137

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

UNSHIELDED DRUM CORE (UP) UNI-PAC™

UNI-PAC™
Power Inductors
(Surface Mount)
Part
Number
UP2B-221-R
UP2B-331-R
UP2B-471-R
UP2B-681-R
UP2B-821-R
UP2B-102-R
UP3B-R47-R
UP3B-1R0-R
UP3B-1R5-R
UP3B-2R2-R
UP3B-3R3-R
UP3B-4R7-R
UP3B-6R8-R
UP3B-100-R
UP3B-150-R
UP3B-220-R
UP3B-330-R
UP3B-470-R
UP3B-680-R
UP3B-101-R
UP3B-151-R
UP3B-331-R
UP4B-R47-R
UP4B-1R0-R
UP4B-1R5-R
UP4B-2R2-R
UP4B-3R3-R
UP4B-4R7-R
UP4B-6R8-R
UP4B-100-R
UP4B-150-R
UP4B-220-R
UP4B-330-R
UP4B-470-R
UP4B-680-R
UP4B-101-R
UP4B-151-R
UP4B-221-R
UP4B-331-R
UP4B-471-R

Inductance
μH (rated)
220.0
330.0
470.0
680.0
820.0
1000.0
0.47
1.0
1.5
2.2
3.3
4.7
6.8
10.0
15.0
22.0
33.0
47.0
68.0
100.0
150.0
330.0
0.47
1.0
1.5
2.2
3.3
4.7
6.8
10.0
15.0
22.0
33.0
47.0
68.0
100.0
150.0
220.0
330.0
470.0

OCL(1)
μH±20%
223
338
471
700
823
1005
0.452
1.34
2.08
3.01
3.96
5.00
7.70
11.00
16.38
23.93
33.85
51.00
69.50
101.40
152.9
332.80
0.473
0.916
1.52
2.27
3.14
5.34
6.66
9.77
15.61
22.61
34.30
48.10
69.14
99.42
146.90
221.40
330.00
470.10

Notes: (1) Open Circuit Inductance Test Parameters: 100KHz, .250Vrms, 0.0Adc.
(2) RMS current for an approximate ΔT of 40°C. at an ambient temperature
of 85˚C.

I RMS(2)
Amperes
0.773
0.676
0.553
0.452
0.423
0.369
16.0
12.5
10.0
9.2
8.0
6.5
5.8
4.3
3.9
3.1
2.4
1.9
1.6
1.4
1.2
0.75
19.2
17.3
13.4
12.0
11.0
8.6
8.3
6.8
5.5
4.5
3.7
3.1
2.4
2.0
1.7
1.4
1.1
0.91

I SAT(3)
Amperes
0.637
0.510
0.427
0.355
0.334
0.300
25.1
15.3
12.0
10.2
9.3
7.7
6.2
5.2
4.3
3.7
3.0
2.4
2.0
1.8
1.4
0.98
51.7
37.3
28.9
23.7
20.2
15.6
14.1
11.5
9.1
7.6
6.1
5.2
4.3
3.6
3.0
2.4
2.0
1.7

DCR(4)
Ohms max.
0.6717
0.8783
1.31
1.97
2.24
2.96
0.0021
0.0034
0.0053
0.0074
0.0083
0.0114
0.0183
0.0260
0.0317
0.0490
0.0688
0.1082
0.1558
0.2053
0.2960
0.7330
0.0019
0.0023
0.0039
0.0048
0.0057
0.0093
0.0100
0.0150
0.0230
0.0340
0.0520
0.0740
0.1200
0.1700
0.2392
0.3571
0.5800
0.8330

(3) Peak current for approximately 30% rolloff UP1B, 3B, 4B. 10% rolloff
UP2B @ 20°C
(4) DCR limits 20°C.

PM-138

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Mechanical Diagrams
UP1B Series
PCB PAD LAYOUT
TOP VIEW

8.89

8.89
Max

5.08

FRONT VIEW

2.42
Ref

UP1B
XXX
wwllyy R

6.10
Max

4.04
Max

UNSHIELDED DRUM CORE (UP) UNI-PAC™

UNI-PAC™
Power Inductors
(Surface Mount)

SCHEMATIC
1

5.0
Max

4.1

2

0.762
Min

1.9

COMPONENT VIEW

UP2B Series
PCB PAD LAYOUT
TOP VIEW

14.0

SCHEMATIC

13.97
Max

1

6.73
Max

UP2B
XXX
wwllyy R

10.41
Max

9.4

FRONT VIEW

4.22
Ref

6.0
Max

7.3

2

0.762
Min

2.3

COMPONENT VIEW

UP3B Series
TOP VIEW

PCB PAD LAYOUT

8.13
max

1

UP3B
XXX
wwllyy R

19.3

SCHEMATIC

SIDE VIEW

1

13.21
max

2

11.7

6.8
max

8.7

2

12.70
3.8

19.30
max

COMPONENT VIEW

UP4B Series
TOP VIEW

PCB PAD LAYOUT

11.18
max

1

UP4B
XXX
wwllyy R

22.1

SCHEMATIC

SIDE VIEW

2

15.00
max

13.5

1

7.87
max

12.0

2

14.61
4.3

22.10
max

Dimensions in Millimeters.

COMPONENT VIEW

wwllyy = (date code) R = revision level
xxx = Inductance value per family chart

PM-139

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

UNSHIELDED DRUM CORE (UP) UNI-PAC™

UNI-PAC™
Power Inductors
(Surface Mount)
Packaging Information
UP1B Series

2.0
4.0

1.5 Dia.

A

1.75

1
7.5
16

9.3

ACTUAL SIZE
UNI-PAC 1B

2
4.4
5.6

A

2.3
6.4

12.0

SECTION A-A

Parts packaged on 13" Diameter reel,
900 parts per reel.

Direction of feed
Dimensions in millimeters.

UP2B Series

2.0
4.0

A

1.5 Dia.

1.75
1
11.5
24

14.3

2
5.4
6.8

A

5.1
10.7

16.0

SECTION A-A

UP3B Series

ACTUAL SIZE
UNI-PAC 2B

Direction of feed
Dimensions in millimeters.

Parts packaged on 13" Diameter reel,
550 parts per reel.

2.0
4.0

1.5 Dia.

A

1.75
1
14.2

19.6

28.4 32
ACTUAL SIZE
UNI-PAC 3B

2
5.9
7.7
SECTION A-A

A

5.8
13.5

16.0
Direction of feed
Dimensions in millimeters.

Parts packaged on 13" Diameter reel,
450 parts per reel.

UP4B Series
2.0
4.0

1.5 Dia.

A

1.75
1
14.2

22.3
2
7.2
9.0
SECTION A-A

11.1
15.3

A

28.4 32

ACTUAL SIZE
UNI-PAC 4B

24.0
Direction of feed
Dimensions in millimeters.

Parts packaged on 13" Diameter reel,
275 parts per reel.

PM-140

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Inductance Characteristics

UP1B-1R0

UP1B-100

Typical Inductance & Energy vs Saturation Current

Typical Inductance & Energy vs Saturation Current

UP1B-470
Typical Inductance & Energy vs Saturation Current

UP2B-100
Typical Inductance & Energy vs Saturation Current

UNSHIELDED DRUM CORE (UP) UNI-PAC™

UNI-PAC™
Power Inductors
(Surface Mount)

UP2B-1R0
Typical Inductance & Energy vs Saturation Current

UP2B-470
Typical Inductance & Energy vs Saturation Current

PM-141

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

UNSHIELDED DRUM CORE (UP) UNI-PAC™

UNI-PAC™
Power Inductors
(Surface Mount)
Inductance Characteristics

UP3B-1R0
Typical Inductance & Energy vs Saturation Current

UP3B-100
Typical Inductance & Energy vs Saturation Current

UP3B-470

UP4B-1R0

Typical Inductance & Energy vs Saturation Current

Typical Inductance & Energy vs Saturation Current

UP4B-100

UP4B-470

Typical Inductance & Energy vs Saturation Current

Typical Inductance & Energy vs Saturation Current

PM-142

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Description
RoHS
2002/95/EC
• Metalized drum core design utilizes board space
• Current Range from 4.46 to 0.52 Amps
• Inductance range from 1.0 uH to 470uH
• Ferrite core material
Applications
• Buck or Boost inductor
• Noise filtering and output filter chokes
• Computers
• Power Supplies
• Test Equipment Instrumentation
Environmental Data
• Storage temperature: -25°C to +85°C
• Operating ambient temperature: -20°C to +80°C (Range
is application specific). Temperature rise is approximately 40°C at rated rms current.
• Solder reflow temperature: 260°C max. for 10 seconds
max.

Part
Number
LD1-1R0-R
LD1-1R4-R
LD1-1R8-R
LD1-2R2-R
LD1-2R7-R
LD1-3R3-R
LD1-3R9-R
LD1-4R7-R
LD1-5R6-R
LD1-6R8-R
LD1-8R2-R
LD1-100-R
LD1-120-R
LD1-150-R
LD1-180-R
LD1-220-R
LD1-270-R
LD1-330-R
LD1-390-R
LD1-470-R
LD1-560-R
LD1-680-R

Rated
Inductance
(μH)
1.0
1.4
1.8
2.2
2.7
3.3
3.9
4.7
5.6
6.8
8.2
10
12
15
18
22
27
33
39
47
56
68

Packaging
• Supplied in tape and reel packaging, LD1 (2,000), LD2
(1,000) parts per reel

OCL (1)
Nominal

Irms (2)
Amperes

Isat (3)
Amperes

1.00
1.40
1.80
2.20
2.70
3.30
3.90
4.70
5.60
6.80
8.20
10.0
12.0
15.0
18.0
22.0
27.0
33.0
39.0
47.0
56.0
68.0

2.66
2.47
2.35
2.22
2.11
2.00
1.75
1.57
1.51
1.41
1.32
1.13
1.05
0.99
0.83
0.78
0.67
0.66
0.63
0.52
0.50
0.46

4.46
3.41
3.05
2.76
2.52
2.32
2.14
2.00
1.75
1.56
1.41
1.28
1.18
1.05
0.98
0.89
0.87
0.75
0.68
0.61
0.57
0.52

Notes:
1) Open Circuit Inductance Test Parameters: 100kHz, 0.25Vrms, 0.0Adc +/-20%
except for LD1-330 to LD1-680 and LD2-470 to LD2-471 which is +/-10%
2) RMS current for for an approximate T of 40°C. It is recommended that the
temperature of the part not exceed 125°C

UNSHIELDED DRUM CORE (LD)

LD Series
Metalized Drum Core
Power Inductor

DCR (4)
(Ω)
(Max.)
0.0330
0.0380
0.0420
0.0470
0.0520
0.0580
0.0760
0.0940
0.1010
0.1170
0.1320
0.1820
0.2100
0.2350
0.3380
0.3780
0.5220
0.5400
0.5870
0.8440
0.9370
1.12

3) Peak current for an approximate 10% rolloff at 20°C
4) DCR limits @ 20°C

PM-143

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Part
Number

Rated
Inductance
(μH)
10
12
15
18
22
27
33
39
47
56
68
82
100
120
150
180
220
270
330
390
470

LD2-100-R
LD2-120-R
LD2-150-R
LD2-180-R
LD2-220-R
LD2-270-R
LD2-330-R
LD2-390-R
LD2-470-R
LD2-560-R
LD2-680-R
LD2-820-R
LD2-101-R
LD2-121-R
LD2-151-R
LD2-181-R
LD2-221-R
LD2-271-R
LD2-331-R
LD2-391-R
LD2-471-R

OCL (1)
Nominal

Irms (2)
Amperes

Isat (3)
Amperes

10.0
12.0
15.0
18.0
22.0
27.0
33.0
39.0
47.0
56.0
68.0
82
100
120
150
180
220
270
330
390
470

3.83
3.57
3.38
3.19
3.13
2.81
2.70
2.42
2.25
1.96
1.88
1.63
1.53
1.43
1.23
1.15
1.00
0.94
0.83
0.78
0.74

3.45
3.20
2.85
2.60
2.45
2.10
2.01
1.85
1.64
1.50
1.35
1.28
1.15
1.09
0.95
0.87
0.79
0.73
0.64
0.58
0.55

DCR (4)
(Ω)
(Max.)
0.0700
0.0800
0.0900
0.1000
0.1100
0.1200
0.1300
0.1600
0.1800
0.2400
0.2800
0.3700
0.4300
0.4700
0.6400
0.7100
0.9600
1.11
1.26
1.77
1.96

3) Peak current for an approximate 10% rolloff at 20°C
4) DCR limits @ 20°C

Notes:
1) Open Circuit Inductance Test Parameters: 100kHz, 0.25Vrms, 0.0Adc +/-20%
except for LD1-330 to LD1-680 and LD2-470 to LD2-471 which is +/-10%
2) RMS current for for an approximate T of 40°C. It is recommended that the
temperature of the part not exceed 125°C

Mechanical Diagrams
RECOMMENDED PCB LAYOUT

TOP VIEW
A

BOTTOM VIEW

FRONT VIEW

SCHEMATIC
H

1

C

xxx

B

UNSHIELDED DRUM CORE (LD)

LD Series
Metalized Drum Core
Power Inductor

I

Marking

G

I

2

Component Side

Marking:
LD1: xxx=inductance value
per family chart
LD2: "C" logo
xxx=inductance value

Dimension
LD1
LD2

A
+/-0.3
4.5
7.8

B
+/-0.3

C
+/-0.3

G
ref

H
ref

I
ref

4.0
7.0

3.2
5.0

1.5
2.0

4.5
7.5

1.75
3.0

Dimensions in millimeters.

PM-144

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Packaging Information

8.0

LD1 Series

ACTUAL SIZE
LD1

xxx

xxx

xxx

xxx

12.0

UNSHIELDED DRUM CORE (LD)

LD Series
Metalized Drum Core
Power Inductor

Parts packaged on 13" Diameter reel,
2,000 parts per reel.

User Direction Feed

LD2 Series

12.0

ACTUAL SIZE
LD2

xxx

xxx

xxx

xxx

16.0

Parts packaged on 13" Diameter reel,
1,000 parts per reel.

User Direction Feed

Inductance Characteristics
OCL vs Isat
LD2

100

100

90

90

80

80

70

70

OCL (%)

OCL (%)

OCL vs Isat
LD1

60
50
40

60
50
40

30

30

20

20

10

10

0

0
0

10

20

30

40

50

60

% of Isat

70

80

90

100

110

120

0

10

20

30

40

50

60

70

80

90

100

110

120

% of Isat

PM-145

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Description
RoHS
2002/95/EC
• High performance, ferrite-based, low profile,
surface mount inductors
• Small footprint and closed magnetic field construction
allow for low EMI
• Low DCR and high efficiency
• Ferrite core material
Applications
• PC cards, cellular telephones, pagers, and disk drives
• GPS systems
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating ambient temperature range: -40°C to +85°C
(range is application specific).
• Solder reflow temperature: +260°C max. for 10 seconds
max.
Part
Number

Inductance
μH

OCL (1)
μH ± 20%

0.47
1.0
1.5
2.2
3.3
4.7
6.8
10.0
15.0
22.0
33.0
47.0

0.40
1.02
1.59
2.29
3.58
4.60
7.02
9.95
15.30
21.80
33.70
46.40

MP2-R47-R
MP2-1R0-R
MP2-1R5-R
MP2-2R2-R
MP2-3R3-R
MP2-4R7-R
MP2-6R8-R
MP2-100-R
MP2-150-R
MP2-220-R
MP2-330-R
MP2-470-R

Packaging
• Supplied in tape and reel packaging, 3900 per reel

Irms (2)
Amperes
(Typ.)
2.02
1.67
1.51
1.39
1.25
1.18
1.06
0.98
0.88
0.80
0.64
0.52

Isat (3)
Amperes
(Typ.)
3.40
2.10
1.70
1.40
1.10
1.00
0.80
0.68
0.54
0.45
0.37
0.31

DCR (4)
Ohms
(Max.)
0.075
0.103
0.118
0.130
0.156
0.180
0.202
0.240
0.300
0.360
0.556
0.833

Q (5)
(Typ.)
10
20
25
32
42
46
46
55
65
65
65
65

SRF
MHz
(Typ.)
300
160
155
150
140
130
110
100
60
45
35
28

4) Values @ 20° C
5) Measured @ 300KHz

1) Open Circuit Inductance Test Parameters: 100kHz, 0.250 Vrms, 0.0 Adc
2) RMS current, delta temp. of 40° C ambient temperature of 85° C
3) Peak current for approximately 30% roll-off

Mechanical Diagrams

5.88

yww
xxx

1.05

5.2 max.
7.50
max

1.8 max.

5.40

7.50

2.00

Dimensions in Millimeters.
Specifications are subject to change without notice.

yww = Date Code
xxx = Inductance value per family chart

Inductance
Characteristics

OCL vs. Isat

120
100
% of (OCL)

TOROID (MP2) MICRO-PAC™

MICRO-PAC™
Low Profile Power Inductors
(Surface Mount)

80
60
40
20
0
0

40

80

120

160

% of Isat

PM-146

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

MICRO-PAC PLUS™
Low Profile Power Inductors
(Surface Mount)

Part
Number
MP2A-R47-R
MP2A-R68-R
MP2A-1R0-R
MP2A-1R5-R
MP2A-2R2-R
MP2A-3R3-R
MP2A-4R7-R
MP2A-6R8-R
MP2A-8R2-R
MP2A-100-R
MP2A-150-R
MP2A-220-R
MP2A-330-R
MP2A-470-R
MP2A-680-R
MP2A-820-R
MP2A-101-R

Inductance
μH
(rated)
0.47
0.68
1.00
1.50
2.20
3.30
4.70
6.80
8.20
10.00
15.00
22.00
33.00
47.00
68.00
82.00
100.00

OCL(1)
μH±20%

DCR(2)
typ.
Ω
0.024
0.027
0.067
0.073
0.086
0.098
0.117
0.136
0.167
0.179
0.217
0.311
0.476
0.727
1.108
1.463
2.015

0.47
0.68
1.21
1.54
2.30
3.21
4.86
6.85
8.54
10.02
15.18
21.40
32.74
46.48
68.53
81.15
99.65

Notes: (1) Open Circuit Inductance Test Parameters: 100 kHz, .25Vrms, 0.0Adc.
(2) DCR limits 20°C.
(3) RMS current for an approximate ΔT of 40°C without core loss. It is recommended that the temperature of the part not exceed 125°C.

Packaging
• Supplied in tape and reel packaging, 3900 per reel

I RMS(3)
Amperes

I SAT(4)
Amperes

Volt(5)
μsec

3.52
3.31
2.11
2.02
1.87
1.75
1.60
1.49
1.34
1.29
1.18
0.98
0.79
0.64
0.52
0.45
0.39

5.80
4.83
3.63
3.22
2.64
2.23
1.81
1.53
1.54
1.42
1.16
0.97
0.79
0.66
0.54
0.50
0.45

1.20
1.27
2.00
2.09
2.26
2.42
2.64
2.84
3.15
3.26
3.59
4.30
5.32
6.57
8.11
9.32
10.94

TOROID (MP2A) MICRO-PAC PLUS™

Description
RoHS
• High performance, low profile, surface mount power 2002/95/EC
inductors with a molybdenum permalloy core
• Small footprint and closed magnetic field construction
ensure low EMI
• Low DCR and high efficiency
• Frequency range up to 500kHz
• MPP core material
Applications
• PC cards, cellular telephones, pagers, and disk drives
• GPS systems
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating ambient temperature range: -40°C to +85°C
(range is application specific).
• Solder reflow temperature: +260°C max for 10 seconds
max

(4) Peak current for approximately 30% rolloff at 20°C.
(5) Applied Volt-Time product (V-μS) across the inductor. This value represents the applied V-μS at 300KHz necessary to generate a core loss
equal to 10% of the total losses for 40°C temperature rise.

Mechanical Diagrams
TOP VIEW
1

PCB PAD LAYOUT
SIDE VIEW

SCHEMATIC
1.05

5.88

YWW
XXX

7.5
MAX

5.2
MAX
1.8
MAX

1

5.40

7.50

2
2.00

2
Dimensions in Millimeters.
Specifications are subject to change without notice.

yww = Date Code
xxx = Inductance value per family chart

PM-147

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

MICRO-PAC PLUS™
Low Profile Power Inductors
(Surface Mount)
Inductance Characteristics

OCL vs. Isat
100%
90%
80%

% of OCL

70%
60%
50%
40%
30%
20%

0%
0%

10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 110% 120% 130% 140% 150% 160%

% of I sat

Core Loss
IRMS DERATING WITH CORE LOSS
0
20
40
50
60

80

200

0K
Hz
10

80

0K
40 Hz
0K
Hz
30
0K
Hz
20
0K
Hz

70

50

% of Losses from Irms (maximum)

TOROID (MP2A) MICRO-PAC PLUS™

10%

90
92
94
95
96
97
98

99
10

20

30

40

50

60

100

300

400 500 600

800 1000

% of Applied Volt-μ-Seconds

Packaging Information for MICRO-PAC™ & MICRO-PAC™ PLUS

ACTUAL SIZE
MICRO-PAC PLUS

Ao=5.6mm
A1=2.3mm
Bo=8.5mm
B1=6.3mm
Ko=2.1mm

Parts packaged on 13" Diameter reel,
3,900 parts per reel.

PM-148

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

ECONO-PAC™/OCTA-PAC®
OCTA-PAC® PLUS
Power Inductors and Transformers

Packaging
• Supplied in tape and reel packaging, 1100 (EP01, OPA1, and
OP01), 800 (EP02, OP02, OPA2, EP03, OPA3, and OP03),
and 600 (EP04, OPA4, and OP04) per reel
Legend
Marking
• CTX___-__ (First three digits CTX; Second 2-3 digits =
Inductance Value; Last 1-2 digits, product size & type)
Product Size/Type
• CTX___-1 (-1 = size; no suffix = OCTA-PAC®)
• CTX___-1P (-1 = size; P suffix = ECONO-PAC™)
• CTX___-1A (-1 = size; A suffix = OCTA-PAC® PLUS)

PARALLEL

Part
Number

CTX0.47-1P-R
CTX0.68-1P-R
CTX1-1P-R
CTX2-1P-R
CTX5-1P-R
CTX8-1P-R
CTX10-1P-R
CTX15-1P-R
CTX20-1P-R
CTX25-1P-R
CTX33-1P-R
CTX50-1P-R
CTX68-1P-R
CTX100-1P-R
CTX150-1P-R
CTX200-1P-R
CTX300-1P-R
CTX0.47-2P-R
CTX0.68-2P-R
CTX1-2P-R
CTX2-2P-R
CTX5-2P-R
CTX8-2P-R
CTX10-2P-R
CTX15-2P-R
CTX20-2P-R
CTX25-2P-R
CTX33-2P-R
CTX50-2P-R
CTX68-2P-R
CTX100-2P-R
CTX150-2P-R
CTX200-2P-R
CTX300-2P-R

Open Circuit
Inductance
μH +/-20%

.42
.60
1.07
2.02
4.83
8.08
9.62
15.03
20.46
25.40
32.33
50.52
68.40
99.01
150.72
198.41
299.87
.54
.85
1.22
2.18
4.90
7.65
9.83
14.99
19.58
24.79
32.67
49.10
68.85
99.14
148.10
201.59
300.42

Full Load
Inductance
μH min.

.31
.43
.73
1.36
3.37
5.31
6.23
9.62
14.12
17.07
22.27
33.57
43.65
63.64
96.64
130.79
190.05
.42
.64
.89
1.56
3.57
5.31
6.73
10.51
13.37
16.60
21.29
35.31
47.93
69.56
100.07
138.49
197.52

TOROID (ECONO-PAC™/OCTA-PAC®, OCTA-PAC® PLUS

Description
RoHS
2002/95/EC
• Surface mount magnetics that can be used as single
or coupled inductors or 1:1 transformers that provide isolation between two windings
• OCTA-PAC’s are designed around high frequency, low loss
MPP core material
• ECONO-PAC’s are a lower cost version of OCTA-PAC’s offering high saturation flux density, Powder Iron core material
• OCTA-PAC PLUS’s offer higher current ratings and higher saturation flux densities than OCTA-PAC and ECONO-PAC,
Amorphous metal core material
• Secure 4 Terminal Mounting
• Inductor more versatile inductance combination by series or
parallel connections
Applications
• Computer and portable power devices
• LCD panels, DVD players
• Inductor: DC-DC converters
• Buck, boost, forward, and resonant converters
• Noise filtering and filter chokes
• Transformers: 1:1 300Vdc isolation, flyback, sepic
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating ambient temperature range: -40°C to +85°C (range
is application specific).
• Solder reflow temperature: +260°C max. for 10 seconds max.

SERIES

Full Load
Current
Adc

DC
Resistance
ohms max.

5.50
5.10
4.50
3.40
2.00
1.80
1.70
1.40
1.00
.96
.80
.70
.66
.54
.44
.36
.32
5.90
5.40
5.00
3.90
2.50
2.30
2.10
1.60
1.50
1.40
1.30
.82
.76
.62
.56
.46
.42

.005
.006
.008
.013
.040
.052
.057
.087
.158
.177
.250
.316
.373
.557
.844
1.208
1.525
.006
.007
.008
.014
.032
.040
.045
.085
.097
.109
.126
.305
.362
.541
.665
.951
1.176

Open Circuit
Inductance
μH +/-20%

1.67
2.40
4.28
8.08
19.31
32.33
38.48
60.12
81.83
101.60
129.32
202.07
273.61
396.06
602.87
793.65
1199.46
2.18
3.40
4.90
8.70
19.58
30.60
39.30
59.98
78.34
99.14
130.70
196.38
275.40
396.58
592.42
806.34
1201.70

Full Load
Inductance
μH min.

Full Load
Current
Adc

DC
Resistance
ohms max.

1.25
1.74
2.92
5.44
13.47
21.23
24.94
38.47
56.47
68.29
89.06
134.27
174.61
254.55
386.56
523.16
760.19
1.69
2.55
3.57
6.26
14.26
21.23
26.92
42.02
53.48
66.38
85.17
141.24
191.71
278.22
400.27
553.97
790.08

2.75
2.55
2.25
1.70
1.00
.90
.85
.70
.50
.48
.40
.35
.33
.27
.22
.18
.16
2.95
2.70
2.50
1.95
1.25
1.15
1.05
.80
.75
.70
.65
.41
.38
.31
.28
.23
.21

.021
.025
.032
.054
.161
.207
.227
.348
.634
.708
1.001
1.263
1.490
2.227
3.376
4.831
6.100
.024
.029
.033
.055
.128
.158
.179
.339
.387
.436
.503
1.221
1.445
2.162
2.660
3.804
4.703

PM-149

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

ECONO-PAC™/OCTA-PAC®
OCTA-PAC® PLUS
Power Inductors and Transformers
PARALLEL

TOROID (ECONO-PAC™/OCTA-PAC®, OCTA-PAC® PLUS

Part
Number

CTX0.47-3P-R
CTX0.68-3P-R
CTX1-3P-R
CTX2-3P-R
CTX5-3P-R
CTX8-3P-R
CTX10-3P-R
CTX15-3P-R
CTX20-3P-R
CTX25-3P-R
CTX33-3P-R
CTX50-3P-R
CTX68-3P-R
CTX100-3P-R
CTX150-3P-R
CTX200-3P-R
CTX300-3P-R
CTX0.47-4P-R
CTX0.68-4P-R
CTX1-4P-R
CTX2-4P-R
CTX5-4P-R
CTX8-4P-R
CTX10-4P-R
CTX15-4P-R
CTX20-4P-R
CTX25-4P-R
CTX33-4P-R
CTX50-4P-R
CTX68-4P-R
CTX100-4P-R
CTX150-4P-R
CTX200-4P-R
CTX300-4P-R
CTX0.47-1-R
CTX0.68-1-R
CTX1-1-R
CTX2-1-R
CTX5-1-R
CTX8-1-R
CTX10-1-R
CTX15-1-R
CTX20-1-R
CTX25-1-R
CTX33-1-R
CTX50-1-R
CTX68-1-R
CTX100-1-R
CTX150-1-R
CTX200-1-R
CTX300-1-R
CTX0.47-2-R
CTX0.68-2-R
CTX1-2-R
CTX2-2-R
CTX5-2-R
CTX8-2-R
CTX10-2-R
CTX15-2-R
CTX20-2-R
CTX25-2-R
CTX33-2-R
CTX50-2-R
CTX68-2-R
CTX100-2-R

Open Circuit
Inductance
μH +/-20%

.46
.67
.91
1.85
4.74
8.16
9.79
14.50
20.15
25.33
32.63
50.02
68.84
101.31
149.85
200.10
298.39
.49
.76
1.10
1.95
5.15
7.81
9.88
14.76
20.62
25.65
33.21
48.80
67.37
99.09
149.45
200.11
298.93
.40
.63
.90
2.03
4.90
8.10
10.00
14.40
19.60
25.60
32.40
50.63
67.60
99.23
148.23
202.50
302.50
.42
.75
1.18
2.30
4.70
7.94
10.58
15.23
20.73
24.86
31.77
51.18
67.87
99.45

Full Load
Inductance
μH min.

.35
.50
.65
1.24
3.04
4.90
5.71
8.50
13.12
16.16
20.32
33.06
44.15
65.50
90.92
116.51
172.12
.37
.56
.81
1.42
3.56
5.15
6.70
9.52
13.44
17.17
22.93
32.21
43.04
69.54
101.46
131.37
188.03
.26
.41
.56
1.00
2.66
4.08
4.85
8.74
11.54
16.35
19.84
29.34
39.73
58.72
85.16
107.60
191.38
.29
.50
.76
1.27
2.66
4.18
5.18
8.53
12.36
16.09
15.90
28.79
38.71
57.45

SERIES

Full Load
Current
Adc

DC
Resistance
ohms max.

6.20
5.70
5.40
4.60
3.20
2.80
2.70
2.20
1.50
1.40
1.30
.92
.84
.68
.64
.60
.50
7.90
7.20
5.90
4.60
3.30
3.00
2.50
2.30
1.90
1.60
1.30
1.20
1.10
.72
.64
.60
.54
5.50
4.50
4.20
4.10
2.30
2.00
1.90
1.10
1.00
.74
.72
.64
.54
.44
.38
.37
.22
6.50
5.50
4.60
4.50
3.00
2.60
2.50
1.70
1.30
1.00
1.40
.92
.78
.63

.006
.007
.008
.011
.022
.030
.033
.050
.111
.125
.146
.277
.328
.501
.621
.731
.926
.005
.006
.008
.014
.027
.033
.047
.057
.084
.115
.166
.201
.238
.565
.696
.810
1.003
.005
.006
.007
.010
.030
.039
.044
.080
.146
.167
.293
.365
.516
.784
.965
1.142
1.431
.005
.006
.007
.010
.021
.027
.031
.059
.107
.117
.105
.210
.303
.457

Open Circuit
Inductance
μH +/-20%

1.85
2.66
3.63
7.40
18.94
32.63
39.15
58.02
80.59
101.31
130.54
200.10
275.35
405.22
599.40
800.38
1193.55
1.95
3.05
4.39
7.81
20.62
31.23
39.53
59.05
82.47
102.60
132.86
195.20
269.50
396.38
597.80
800.44
1195.72
1.60
2.50
3.60
8.10
19.60
32.40
40.00
57.60
78.40
102.40
129.60
202.50
270.40
396.90
592.90
810.00
1210.00
1.69
3.01
4.70
9.21
18.80
31.77
42.30
60.91
82.91
99.45
127.09
204.73
271.47
397.81

Full Load
Inductance
μH min.

Full Load
Current
Adc

DC
Resistance
ohms max.

1.42
1.98
2.62
4.97
12.15
19.60
22.85
34.01
52.48
64.66
81.30
132.24
176.61
262.02
363.68
466.03
688.50
1.49
2.24
3.24
5.69
14.23
20.61
26.79
38.09
53.76
68.68
91.72
128.83
172.16
278.15
405.83
525.47
752.13
1.05
1.63
2.24
4.01
10.64
16.34
19.40
34.96
46.15
65.42
79.37
117.38
158.92
234.88
340.64
430.39
765.54
1.17
1.98
3.04
5.07
10.65
16.72
20.72
34.10
49.46
64.35
63.59
115.16
154.83
229.79

3.10
2.85
2.70
2.30
1.60
1.40
1.35
1.10
.75
.70
.65
.46
.42
.34
.32
.30
.25
3.95
3.60
2.95
2.30
1.65
1.50
1.25
1.15
.95
.80
.65
.60
.55
.36
.32
.30
.27
2.75
2.25
2.10
2.05
1.15
1.00
.95
.55
.50
.37
.36
.32
.27
.22
.19
.19
.11
3.25
2.75
2.30
2.25
1.50
1.30
1.25
.85
.65
.50
.70
.46
.39
.32

.025
.028
.032
.045
.090
.119
.131
.198
.443
.499
.571
1.108
1.312
2.005
2.483
2.925
3.702
.019
.023
.033
.055
.107
.131
.187
.228
.337
.461
.662
.805
.952
2.259
2.784
3.240
4.011
.020
.024
.028
.040
.122
.157
.176
.319
.583
.668
1.171
1.461
2.064
3.137
3.861
4.567
5.724
.019
.024
.028
.038
.084
.108
.125
.236
.426
.466
.420
.839
1.214
1.828

PM-150

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

ECONO-PAC™/OCTA-PAC®
OCTA-PAC® PLUS
Power Inductors and Transformers
PARALLEL

Part
Number

147.39
198.58
300.80
.38
.60
.86
1.94
4.70
7.78
9.60
15.00
20.18
24.58
32.86
50.78
67.42
101.40
149.78
198.74
301.06
.44
.78
1.23
1.76
4.90
8.28
9.60
14.16
19.60
25.92
33.12
50.18
67.08
99.23
148.23
200.70
298.12

Full Load
Inductance
μH min.

93.46
122.94
169.06
.27
.42
.57
1.05
2.56
3.74
4.38
7.26
10.76
15.64
19.69
27.18
36.53
52.48
97.16
119.18
157.44
.32
.55
.85
1.06
2.59
4.29
4.82
6.76
10.68
13.32
16.82
25.03
35.29
54.56
77.17
111.08
147.92

Full Load
Current
Adc

DC
Resistance
ohms max.

.43
.39
.38
6.00
5.00
4.80
4.70
3.00
2.80
2.70
2.00
1.50
.98
.96
.94
.80
.70
.38
.39
.40
7.00
6.00
5.00
4.90
4.40
3.50
3.40
3.00
2.10
2.00
1.80
1.50
1.20
.92
.82
.64
.62

.560
.796
1.231
.005
.006
.007
.010
.019
.025
.028
.043
.078
.086
.083
.239
.277
.345
.430
.619
.951
.004
.005
.006
.007
.014
.018
.019
.024
.055
.063
.072
.111
.157
.302
.372
.545
.672

Open Circuit
Inductance
μH +/-20%

589.57
794.30
1203.20
1.54
2.40
3.46
7.78
18.82
31.10
38.40
60.00
80.74
98.30
131.42
203.14
269.66
405.60
599.14
794.98
1204.22
1.76
3.14
4.90
7.06
19.60
33.12
38.42
56.64
78.40
103.68
132.50
200.70
268.32
396.90
592.90
802.82
1192.46

Full Load
Inductance
μH min.

Full Load
Current
Adc

DC
Resistance
ohms max.

373.84
491.76
676.24
1.08
1.67
2.28
4.22
10.26
14.98
17.54
29.06
43.04
62.56
78.77
108.71
146.11
209.93
388.63
476.71
629.75
1.29
2.21
3.41
4.24
10.37
17.14
19.28
27.03
42.73
53.27
67.27
100.11
141.15
218.25
308.69
444.32
591.66

.22
.20
.19
3.00
2.50
2.40
2.35
1.50
1.40
1.35
1.00
.75
.49
.48
.47
.40
.35
.19
.20
.20
3.50
3.00
2.50
2.45
2.20
1.75
1.70
1.50
1.05
1.00
.90
.75
.60
.46
.41
.32
.31

2.241
3.184
4.929
.020
.024
.028
.040
.077
.099
.111
.172
.312
.346
.331
.956
1.109
1.381
1.718
2.475
3.083
.016
.020
.024
.028
.056
.072
.078
.096
.220
.253
.287
.443
.630
1.210
1.488
2.180
2.687

TOROID (ECONO-PAC™/OCTA-PAC®, OCTA-PAC® PLUS

CTX150-2-R
CTX200-2-R
CTX300-2-R
CTX0.47-3-R
CTX0.68-3-R
CTX1-3-R
CTX2-3-R
CTX5-3-R
CTX8-3-R
CTX10-3-R
CTX15-3-R
CTX20-3-R
CTX25-3-R
CTX33-3-R
CTX50-3-R
CTX68-3-R
CTX100-3-R
CTX150-3-R
CTX200-3-R
CTX300-3-R
CTX0.47-4-R
CTX0.68-4-R
CTX1-4-R
CTX2-4-R
CTX5-4-R
CTX8-4-R
CTX10-4-R
CTX15-4-R
CTX20-4-R
CTX25-4-R
CTX33-4-R
CTX50-4-R
CTX68-4-R
CTX100-4-R
CTX150-4-R
CTX200-4-R
CTX300-4-R

Open Circuit
Inductance
μH +/-20%

SERIES

PM-151

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

TOROID (ECONO-PAC™/OCTA-PAC®, OCTA-PAC® PLUS

ECONO-PAC™/OCTA-PAC®
OCTA-PAC® PLUS
Power Inductors and Transformers

Part Number

Rated
Inductance
(μH)

CTX0.33-1A-R
CTX0.68-1A-R
CTX1-1A-R
CTX2-1A-R
CTX5-1A-R
CTX8-1A-R
CTX10-1A-R
CTX15-1A-R
CTX20-1A-R
CTX25-1A-R
CTX33-1A-R
CTX50-1A-R
CTX68-1A-R
CTX100-1A-R
CTX150-1A-R
CTX200-1A-R
CTX300-1A-R
CTX0.33-2A-R
CTX0.68-2A-R
CTX1-2A-R
CTX2-2A-R
CTX5-2A-R
CTX8-2A-R
CTX10-2A-R
CTX15-2A-R
CTX20-2A-R
CTX25-2A-R
CTX33-2A-R
CTX50-2A-R
CTX68-2A-R
CTX100-2A-R
CTX150-2A-R
CTX200-2A-R
CTX300-2A-R
CTX0.33-3A-R
CTX0.68-3A-R
CTX1-3A-R
CTX2-3A-R
CTX5-3A-R
CTX8-3A-R
CTX10-3A-R
CTX15-3A-R
CTX20-3A-R
CTX25-3A-R
CTX33-3A-R
CTX50-3A-R

0.33
0.68
1.0
2.0
5.0
8.0
10.0
15.0
20.0
25.0
33.0
50.0
68.0
100.0
150.0
200.0
300.0
0.33
0.68
1.0
2.0
5.0
8.0
10.0
15.0
20.0
25.0
33.0
50.0
68.0
100.0
150.0
200.0
300.0
0.33
0.68
1.0
2.0
5.0
8.0
10.0
15.0
20.0
25.0
33.0
50.0

OCL (1)
nominal
+/-25%
(μH)
0.402
0.752
1.18
2.30
4.70
7.94
10.58
15.23
20.73
24.86
34.26
51.18
67.87
99.45
147.4
198.6
300.8
0.284
0.675
1.26
1.98
5.06
7.90
11.38
15.48
20.22
25.60
34.84
49.38
66.44
102.38
152.9
197.5
303.7
0.368
0.688
1.08
2.11
5.20
8.43
9.68
15.52
20.81
24.77
33.71
49.71

I sat. (2)
Amperes
Peak
12.5
9.4
7.5
5.36
3.75
2.88
2.5
2.08
1.79
1.63
1.39
1.14
0.99
0.82
0.67
0.58
0.47
18.8
12.5
9.38
7.50
4.69
3.75
3.13
2.68
2.34
2.08
1.79
1.50
1.29
1.04
0.85
0.75
0.60
15.0
11.3
9.0
6.43
4.09
3.21
3.00
2.37
2.05
1.88
1.61
1.32

Parallel Ratings
I rms. (3) DCR Ω (4)
Amperes
max.
@ 20°C.
10.0
9.0
7.26
5.64
4.27
3.37
2.84
2.07
1.71
1.46
1.22
0.99
0.92
0.74
0.67
0.62
0.56
10.9
9.4
8.22
6.74
4.34
3.50
2.89
2.69
2.24
1.89
1.56
1.28
1.07
0.75
0.68
0.64
0.58
11.4
9.3
8.38
7.26
5.24
4.23
3.64
3.25
2.43
2.34
1.93
1.56

1) Open Circuit Inductance Test Parameters: 100kHz, 0.250 Vrms, 0.0 Adc
Parallel: (1,4 - 3,2) Series: (1 - 3) tie (2 - 4)
2) Peak current for approximately 30% roll-off
3) RMS current, delta temp. of 40° C ambient temperature of 85° C
4) DCR @ 20°C

0.0037
0.0046
0.0070
0.012
0.020
0.033
0.046
0.087
0.127
0.173
0.249
0.381
0.437
0.686
0.832
0.963
1.181
0.0033
0.0045
0.0058
0.0090
0.021
0.032
0.047
0.054
0.078
0.111
0.162
0.240
0.342
0.695
0.842
0.950
1.174
0.0032
0.0048
0.0059
0.0079
0.015
0.023
0.032
0.039
0.071
0.076
0.112
0.171

Volt (7)
μ-Sec

.93
1.24
1.55
2.17
3.11
4.04
4.66
5.59
6.52
7.14
8.39
10.3
11.8
14.3
17.4
20.2
24.9
.85
1.28
1.71
2.14
3.42
4.27
5.13
5.98
6.84
7.69
8.97
10.7
12.4
15.4
18.8
21.4
26.5
0.97
1.29
1.61
2.26
3.54
4.51
4.83
6.12
7.09
7.73
9.02
11.0

OCL (1)
nominal
+/-25%
(μH)
1.61
3.01
4.70
9.21
18.8
31.77
42.30
60.91
82.91
99.45
137.1
204.7
271.5
397.8
589.6
794.3
1203
1.14
2.70
5.06
7.90
20.22
31.60
45.50
61.94
80.90
102.38
139.4
197.5
265.8
409.5
611.8
790.0
1215
1.47
2.75
4.20
8.43
20.81
33.77
38.70
62.09
83.25
99.07
134.8
198.8

I sat. (2)
Amperes
Peak
6.25
4.69
3.75
2.68
1.88
1.44
1.25
1.04
0.89
0.82
0.69
0.57
0.49
0.41
0.33
0.29
0.23
9.38
6.25
4.69
3.75
2.34
1.88
1.56
1.34
1.17
1.04
0.89
0.75
0.65
0.52
0.43
0.38
0.30
7.50
5.63
4.50
3.21
2.05
1.61
1.50
1.18
1.02
0.94
0.80
0.66

Series Ratings
I rms. (3) DCR Ω (4)
Amperes
max.
@ 20°C.
4.98
4.48
3.63
2.82
2.13
1.69
1.42
1.03
0.86
0.73
0.61
0.49
0.46
0.37
0.33
0.31
0.28
5.47
4.68
4.11
3.37
2.17
1.75
1.45
1.35
1.12
0.94
0.78
0.64
0.54
0.38
0.34
0.32
0.29
5.72
4.64
4.19
3.63
2.62
2.12
1.82
1.63
1.22
1.17
0.96
0.78

0.015
0.0185
0.0282
0.0470
0.082
0.130
0.183
0.348
0.507
0.693
0.995
1.524
1.749
2.745
3.329
3.854
4.726
0.0132
0.0180
0.0233
0.035
0.084
0.129
0.188
0.218
0.313
0.443
0.649
0.961
1.367
2.778
3.366
3.800
4.697
0.0128
0.0194
0.0238
0.0317
0.061
0.093
0.126
0.158
0.282
0.306
0.449
0.686

Volt (7)
μ-Sec

1.86
2.49
3.11
4.35
6.21
8.08
9.32
11.2
13.0
14.3
16.8
20.5
23.6
28.6
34.8
40.4
49.7
1.71
2.56
3.42
4.27
6.84
8.55
10.3
12.0
13.7
15.4
17.9
21.4
24.8
30.8
37.6
42.7
53.0
1.93
2.58
3.22
4.51
7.09
9.02
9.67
12.2
14.2
15.5
18.0
21.9

5) Hipot rating: winding to winding: 300Vdc min.
6) Turns Ratio: (1-2):(4-3) 1:1
7) Applied volt-time product (v-us) across the inductor. This value represents the
applied V-us at 300KHz necessary to generate a core loss equal to 10% of the
total losses for a 40°C temperature rise.

PM-152

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

ECONO-PAC™/OCTA-PAC®
OCTA-PAC® PLUS
Power Inductors and Transformers

Rated
Inductance
(μH)

CTX68-3A-R
CTX100-3A-R
CTX150-3A-R
CTX200-3A-R
CTX300-3A-R
CTX0.33-4A-R
CTX0.68-4A-R
CTX1-4A-R
CTX2-4A-R
CTX5-4A-R
CTX8-4A-R
CTX10-4A-R
CTX15-4A-R
CTX20-4A-R
CTX25-4A-R
CTX33-4A-R
CTX50-4A-R
CTX68-4A-R
CTX100-4A-R
CTX150-4A-R
CTX200-4A-R
CTX300-4A-R

68.0
100.0
150.0
200.0
300.0
0.33
0.68
1.0
2.0
5.0
8.0
10.0
15.0
20.0
25.0
33.0
50.0
68.0
100.0
150.0
200.0
300.0

OCL (1)
nominal
+/-25%
(μH)
68.80
99.07
149.7
198.8
296.2
0.313
0.744
1.39
2.18
4.26
8.70
10.53
14.70
19.58
25.14
34.80
50.11
68.21
100.57
153.5
200.4
302.8

I sat. (2)
Amperes
Peak
1.13
0.94
0.76
0.66
0.54
22.5
15.0
11.25
9.00
6.43
4.50
4.09
3.46
3.00
2.65
2.25
1.88
1.61
1.32
1.07
0.94
0.76

Parallel Ratings
I rms. (3) DCR Ω (4)
Amperes
max.
@ 20°C.
1.28
1.05
0.86
0.71
0.56
12.2
10.6
9.23
8.38
7.21
5.49
4.67
3.87
3.62
3.02
2.49
2.05
1.70
1.37
1.10
0.92
0.75

1) Open Circuit Inductance Test Parameters: 100kHz, 0.250 Vrms, 0.0 Adc
Parallel: (1,4 - 3,2) Series: (1 - 3) tie (2 - 4)
2) Peak current for approximately 30% roll-off
3) RMS current, delta temp. of 40° C ambient temperature of 85° C
4) DCR @ 20°C

0.253
0.379
0.571
0.829
1.309
0.0030
0.0040
0.0052
0.0063
0.0085
0.015
0.020
0.029
0.034
0.048
0.071
0.104
0.153
0.235
0.365
0.521
0.787

Volt (7)
μ-Sec

12.9
15.5
19.0
21.9
26.7
0.98
1.47
1.96
2.45
3.44
4.91
5.40
6.38
7.36
8.34
9.81
11.8
13.7
16.7
20.6
23.6
29.0

OCL (1)
nominal
+/-25%
(μH)
275.2
396.3
598.7
795.3
1185
1.25
2.98
5.57
8.70
17.05
34.80
42.11
58.81
78.30
100.51
139.2
200.4
272.8
402.3
613.9
801.8
1211

I sat. (2)
Amperes
Peak
0.56
0.47
0.38
0.33
0.27
11.25
7.50
5.63
4.50
3.21
2.25
2.05
1.73
1.50
1.32
1.13
0.94
0.80
0.66
0.54
0.47
0.38

Series Ratings
I rms. (3) DCR Ω (4)
Amperes
max.
@ 20°C.
0.64
0.53
0.43
0.35
0.28
6.09
5.28
4.62
4.19
3.61
2.74
2.33
1.94
1.81
1.51
1.25
1.03
0.85
0.69
0.55
0.46
0.37

1.013
1.514
2.283
3.315
5.236
0.0119
0.0158
0.0207
0.0251
0.0339
0.059
0.081
0.117
0.135
0.193
0.283
0.418
0.612
0.939
1.462
2.085
3.148

Volt (7)
μ-Sec

25.8
30.9
38.0
43.8
53.5
1.96
2.94
3.93
4.91
6.87
9.81
10.8
12.8
14.7
16.7
19.6
23.6
27.5
33.4
41.2
47.1
57.9

TOROID (ECONO-PAC™/OCTA-PAC®, OCTA-PAC® PLUS

Part Number

5) Hipot rating: winding to winding: 300Vdc min.
6) Turns Ratio: (1-2):(4-3) 1:1
7) Applied volt-time product (v-us) across the inductor. This value represents the
applied V-us at 300KHz necessary to generate a core loss equal to 10% of the
total losses for a 40°C temperature rise.

PM-153

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

ECONO-PAC™/OCTA-PAC®
OCTA-PAC® PLUS
Power Inductors and Transformers
Mechanical Diagrams

TOROID (ECONO-PAC™/OCTA-PAC®, OCTA-PAC® PLUS

CTX 1, 1P, 1A Series

CTX 2, 2P, 2A Series

CTX 3, 3P, 3A Series

CTX 4, 4P, 4A Series

Dimensions in Millimeters.

wwllyy = (date code) R = revision level

PM-154

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

ECONO-PAC™/OCTA-PAC®
OCTA-PAC® PLUS
Power Inductors and Transformers
Packaging Information
CTX 1, 1P, 1A Series

Parts packaged on 13" Diameter reel,
1,100 parts per reel.

CTX 2, 2P, 2A Series

Direction of Feed

➞

TOROID (ECONO-PAC™/OCTA-PAC®, OCTA-PAC® PLUS

➞

Direction of Feed

Parts packaged on 13" Diameter reel,
800 parts per reel.

CTX 3, 3P, 3A Series

Direction of Feed

➞

Parts packaged on 13" Diameter reel,
800 parts per reel.

CTX 4, 4P, 4A Series

Direction of Feed

➞

Parts packaged on 13" Diameter reel,
600 parts per reel.

Dimensions are in millimeters.

PM-155

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

ECONO-PAC™/OCTA-PAC®
OCTA-PAC® PLUS
Power Inductors and Transformers
Performance Characteristics

TEMPERATURE RISE VS. RATED CURRENT
Max. Ambient plus Rise = 125°C
140

ECONO-PAC

120

Degrees C

Percentage of
Inductance

100
90
80
70
60
50
40
30
20
10
0
0.00

OCTA-PAC

100

ECONO-PAC & OCTA-PAC

80
60
40
20

0.25

0.50

0.75

1.00

1.25

1.50

1.75

2.00

2.25

0
0.00

2.50

0.25

0.50

Per Unit Full Load Current

+8
+6
+4
+2
+0
-2
-4
-6
-8
-10
-12
-14

+5

Percentage Change
in Inductance

1.25

1.50

1.75

2.00

2.25

2.50

• FREQUENCY RESPONSE:
Wide-band frequency response to 1 megaHertz.
• CURRENT LIMITATION:
The maximum allowable currents are defined by the internal
“hot-spot” temperatures which are limited to 130°C, including
ambient.

OCTA-PAC

-15

1.00

• INDUCTANCE VS. CURRENT:
Inductance will fall off as DC Current is increased.
(See Inductance vs. Current graph).

ECONO-PAC

-35

0.75

Per Unit Full Load Current

INDUCTANCE VS. TEMPERATURE

+25

+45

+65

+85

+105

+125

Temperature in Degrees C.

OCTA-PAC® PLUS Typical Inductance vs. DC Current

OCTA-PAC® PLUS Winding Loss Derating with Core Loss

100

50

40

30

20

10

70

Hz
0K
10

80

30
0K
Hz
20
0K
Hz

60

60

50
0K
Hz

70

40
50

Hz

80

20

1M

% of Losses from Irms (maximum)

0
90

% of OCL

TOROID (ECONO-PAC™/OCTA-PAC®, OCTA-PAC® PLUS

INDUCTANCE VS. CURRENT

90
92
94
95
96
97
98

99
0

10
0

20

40

60

80

100

% of Isat

120

140

160

180

200

20

30

40

50

60

80

100

200

300

400 500 600

800 1000

% of Applied Volt-μ-Second Rating

PM-156

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

VERSA-PAC®
Inductors and Transformers
(Surface Mount)
Description
RoHS
2002/95/EC
• Six winding, surface mount devices that
offer more than 500 usable inductor or
transformer configurations
• High power density and low profile
• Low radiated noise and tightly coupled windings
• Power range from 1 Watt – 70 Watts
• Frequency range to over 1MHz
• 500 VAC Isolation
• Ferrite core material
Applications
• Inductors: buck, boost, coupled, choke, filter, resonant,
noise filtering, differential, forward, common mode
• Transformers: flyback, feed forward, push-pull, multiple
output, inverter, step-up, step-down, gate drive, base
drive, wide band, pulse, control, impedance, isolation,
bridging, ringer, converter, auto
Environmental Data
• Storage temperature range: -55°C to 125°C
• Operating ambient temperature range: -40°C to +85°C
(range is application specific). The internal “hot spot”
temperature defines the maximum allowable currents,
which are limited to 130°C, including ambient
• Solder reflow temperature: +260°C max for 10 seconds
max.

VPH1-1400-R(10)
VP1-1400-R(10)
VPH1-0190-R
VP1-0190-R
VPH1-0102-R
VP1-0102-R
VPH1-0076-R
VP1-0076-R
VPH1-0059-R
VP1-0059-R
VPH2-1600-R(10)
VP2-1600-R(10)
VPH2-0216-R
VP2-0216-R
VPH2-0116-R
VP2-0116-R
VPH2-0083-R
VP2-0083-R
VPH2-0066-R
VP2-0066-R
VPH3-0780-R(10)
VP3-0780-R(10)
VPH3-0138-R
VP3-0138-R
VPH3-0084-R
VP3-0084-R
VPH3-0055-R
VP3-0055-R
VPH3-0047-R
VP3-0047-R

L(BASE)
μH
(NOM)(2)
201.6 +/-30%
89.6 +/-30%
27.4 +/-20%
12.2 +/-20%
14.7 +/-20%
6.5 +/-20%
10.9 +/-20%
4.9 +/-20%
8.5 +/-20%
3.8 +/-20%
160 +/-30%
78.4 +/-30%
21.6 +/-20%
10.6 +/-20%
11.6 +/-20%
5.7 +/-20%
8.3 +/-20%
4.1 +/-20%
6.6 +/-20%
3.2 +/-20%
132 +/-30%
63.2 +/-30%
23.3 +/-20%
11.2 +/-20%
14.2 +/-20%
6.8 +/-20%
9.3 +/-20%
4.5 +/-20%
7.94 +/-20%
3.8 +/-20%

ISAT(BASE)
Amps
(TYP)(3)(4)
0.04
0.06
0.29
0.43
0.53
0.80
0.72
1.06
0.92
1.37
0.07
0.10
0.53
0.76
0.99
1.41
1.39
1.95
1.74
2.50
0.07
0.10
0.41
0.59
0.67
0.97
1.02
1.46
1.19
1.73

IRMS(BASE)
Amps
(TYP)(3)(5)
0.55
0.85
0.55
0.85
0.55
0.85
0.55
0.85
0.55
0.85
0.95
1.26
0.95
1.26
0.95
1.26
0.95
1.26
0.95
1.26
0.97
1.47
0.97
1.47
0.97
1.47
0.97
1.47
0.97
1.47

R(BASE)
Ohms
(MAX)(6)
0.344
0.145
0.344
0.145
0.344
0.145
0.344
0.145
0.344
0.145
0.159
0.090
0.159
0.090
0.159
0.090
0.159
0.090
0.159
0.090
0.14
0.061
0.14
0.061
0.14
0.061
0.14
0.061
0.14
0.061

Volt-μSEC(BASE) EPEAK(BASE)
μVs
μJ
(MAX)(7)
(TYP)(8)
32.9
0.11
21.8
0.11
32.9
0.77
21.8
0.77
32.9
1.45
21.8
1.45
32.9
1.92
21.8
1.92
32.9
2.48
21.8
2.48
48.3
0.29
33.7
0.29
48.3
2.11
33.7
2.11
48.3
3.94
33.7
3.94
48.3
5.47
33.7
5.47
48.3
7.01
33.7
7.01
39.8
0.24
27.7
0.24
39.8
1.36
27.7
1.36
39.8
2.23
27.7
2.23
39.8
3.38
27.7
3.38
39.8
4.00
27.7
4.00

Leakage
Inductance
(BASE) μH
(TYP)
0.212
0.096
0.212
0.096
0.212
0.096
0.212
0.096
0.212
0.096
0.165
0.083
0.165
0.083
0.165
0.083
0.165
0.083
0.165
0.083
0.125
0.058
0.125
0.058
0.125
0.058
0.125
0.058
0.125
0.058

Thermal
Resistance
°C/Watt
(TYP)(9)
60.7
60.7
60.7
60.7
60.7
60.7
60.7
60.7
60.7
60.7
44.0
44.0
44.0
44.0
44.0
44.0
44.0
44.0
44.0
44.0
43.4
43.4
43.4
43.4
43.4
43.4
43.4
43.4
43.4
43.4

TRANSFORMERS (VP1-5/VPH1-5) VERSA-PAC®

Part (1)
Number

Packaging
• Supplied in tape and reel packaging, 600 (VP01),
300 (VP02), and 200 (VP03) per reel
• Supplied in bulk packaging (VP04 and VP05)
• VP04 & VP05 tape and reel packaging available.
Please contact factory for details.

PM-157

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

VERSA-PAC®
Inductors and Transformers
(Surface Mount)

Part (1)
Number
VPH4-0860-R(10)
VP4-0860-R(10)
VPH4-0140-R
VP4-0140-R
VPH4-0075-R
VP4-0075-R
VPH4-0060-R
VP4-0060-R
VPH4-0047-R
VP4-0047-R
VPH5-1200-R(10)
VP5-1200-R(10)
VPH5-0155-R
VP5-0155-R
VPH5-0083-R
VP5-0083-R
VPH5-0067-R
VP5-0067-R
VPH5-0053-R
VP5-0053-R

L(BASE)
μH
(NOM)(2)
159.65 +/-30%
87.0 +/-30%
23.7 +/-20%
11.3 +/-20%
12.7 +/-20%
6.1 +/-20%
10.1 +/-20%
4.9 +/-20%
7.94 +/-20%
3.8 +/-20%
173 +/-30%
76.8 +/-30%
22.3 +/-20%
9.9 +/-20%
12 +/-20%
5.3 +/-20%
9.65 +/-20%
4.3 +/-20%
7.63 +/-20%
3.4 +/-20%

ISAT(BASE)
Amps
(TYP)(3)(4)
0.11
0.15
0.65
0.95
1.21
1.75
1.52
2.18
1.94
2.81
0.14
0.20
1.05
1.60
1.96
2.95
2.43
3.63
3.07
4.59

IRMS(BASE)
Amps
(TYP)(3)(5)
1.41
1.70
1.41
1.70
1.41
1.70
1.41
1.70
1.41
1.70
1.70
2.08
1.70
2.08
1.70
2.08
1.70
2.08
1.70
2.08

R(BASE)
Ohms
(MAX)(6)
0.0828
0.057
0.0828
0.057
0.0828
0.057
0.0828
0.057
0.0828
0.057
0.0711
0.047
0.0711
0.047
0.0711
0.047
0.0711
0.047
0.0711
0.047

(1) The first three digits in the part number signify the size of the package. The next four digits specify the AL, or nanoHenries per turn
squared.
(2) L = Nominal Inductance of a single winding.
(3) I is the lessor of I ( ) and I ( ).
(4) Peak current that will result in 30% saturation of the core. This current value assumes that equal current flows in all six windings. For
applications in which all windings are not simultaneously driven (i.e.
flyback, SEPIC, Cuk, etc.), the saturation current per winding may
be calculated as follows:

TRANSFORMERS (VP1-5/VPH1-5) VERSA-PAC®

SAT BASE

ISAT

2

EnergySERIES = S x
2

RMS BASE

=

6 x ISAT(BASE)

Number of Windings Driven

(5) RMS Current that results in a surface temperature of approximately
40°C above ambient. The 40°C rise occurs when the specified current flows through each of the six windings.
(6) Maximum DC Resistance of each winding.
(7) For multiple windings in series, the volt-μsecond (μVs)
capability varies as the number of windings in series (S):
TOTAL

Thermal
Resistance
°C/Watt
(TYP)(9)
39.4
39.4
39.4
39.4
39.4
39.4
39.4
39.4
39.4
39.4
30.3
30.3
30.3
30.3
30.3
30.3
30.3
30.3
30.3
30.3

(8) Maximum Energy capability of each winding. This is based on 30%
saturation of the core:

BASE

BASE

Leakage
Inductance
(BASE) μH
(TYP)
0.156
0.075
0.156
0.075
0.156
0.075
0.156
0.075
0.156
0.075
0.235
0.105
0.235
0.105
0.235
0.105
0.235
0.105
0.235
0.105

Volt-μSEC(BASE) EPEAK(BASE)
μVs
μJ
(MAX)(7)
(TYP)(8)
64.6
0.57
44.7
0.57
64.6
3.54
44.7
3.54
64.6
6.55
44.7
6.55
64.6
8.16
44.7
8.16
64.6
10.52
44.7
10.52
98.4
1.11
65.6
1.11
98.4
8.83
65.6
8.83
98.4
16.07
65.6
16.07
98.4
19.83
65.6
19.83
98.4
25.10
65.6
25.10

EnergyPARALLEL = P x

1

2

x

2
1
2

0.7LBASE x I SAT(BASE)
2

x

0.7LBASE x I SAT(BASE)

For multiple windings, the energy capability varies as the square of
the number of windings. For example, six windings (either parallel
or series) can store 36 times more energy than one winding.
(9) Thermal Resistance is the approximate surface temperature rise
per Watt of heat loss under still-air conditions. Heat loss is a combination of core loss and wire loss. The number assumes the underlying PCB copper area equals 150% of the component area.
(10) These devices are designed for feed-forward applications, where
load current dominates magnitizing current.

Volt-μsecTOTAL = S x Volt-μsec(BASE)
For multiple windings in parallel, the volt-μsecond
is as shown in the table above.

TOTAL

(μVs) capability

VERSA-PAC temperature rise depends on total power losses and
size. Any other PCM configurations other than those suggested
could run hotter than acceptable.
Certain topologies or applications must be analyzed for needed
requirements and matched with the best VERSA-PAC size and configuration. Proper consideration must be used with all parameters,
especially those associated with current rating, energy storage, or
maximum volt-seconds.
VERSA-PAC should not be used in off-line or safety related applications. The breakdown voltage from one winding to any other winding is 500 VAC maximum.

PM-158

PCM

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

VERSA-PAC®
Inductors and Transformers
(Surface Mount)
Mechanical Diagrams
VP1 and VPH1
RECOMMENDED PCB LAYOUT

TOP VIEW
WHITE DOT
PIN #1
1

M

12
1

VPH_-_ _ _ _

D
(12 PLCS)

N

LOGO (OPTIONAL)

A
J

6

K
(12PLCS)

P
(10PLCS)

12

NOTES

COMPONENT
SIDE

0
(10PLCS)

7
6
B
C

L
(12PLCS)

1) Tolerances A - I are ± 0.25 mm
unless specified otherwise.
2) Tolerances J - P are +/- 0.1 mm
unless specified otherwise.
3) Marking as shown
a) Dot for pin #1 identification
b) On top of unit: -- VPHx-xxx
(product code, size,
4 digit part number per family
table.)
c) On top of unit: Versa Pac
Logo (optional)
d) On bottom of unit: wwllyy =
(date code) R = (revision
level)
4) All soldering surfaces must be
coplanar within 0.102 mm.

7

4

10

1
5

7
11

2
6

8
12

FRONT VIEW
E

F
I
(12 PLCS)

G
(2 PLCS)

H

3

WWLLYY R
B
mm
ref
9.2

C
mm
max
13.0

D
mm
ref
0.7

E
mm
ref
5.9

F
mm
max
6.2

G
mm
ref
1.5

H
mm
ref
0.1

I
mm
ref
0.25

J
mm
ref
11.5

K
mm

L
mm

1.5

2.25

M
mm
ref
9.7

N
mm
max
14.2

O
mm

P
mm

2.0

0.5

VP2 and VPH2
RECOMMENDED PCB LAYOUT

TOP VIEW
WHITE DOT
PIN #1
1

M

12
1

VPH_-_ _ _ _

D
(12 PLCS)

N

LOGO (OPTIONAL)

A
J

6

K
(12PLCS)

P
(10PLCS)

12

NOTES

COMPONENT
SIDE

0
(10PLCS)

7
6
B
C

L
(12PLCS)

1) Tolerances A - I are ± 0.25 mm
unless specified otherwise.
2) Tolerances J - P are +/- 0.1 mm
unless specified otherwise.
3) Marking as shown
a) Dot for pin #1 identification
b) On top of unit: -- VPHx-xxx
(product code, size,
4 digit part number per family
table.)
c) On top of unit: Versa Pac
Logo (optional)
d) On bottom of unit: wwllyy =
(date code) R = (revision
level)
4) All soldering surfaces must be
coplanar within 0.102 mm.

7

4

10

1
5

7
11

2
6

8
12

FRONT VIEW
E

F
I
(12 PLCS)

G
(2 PLCS)

H

3

WWLLYY R

VP2 and VPH2

A
mm
max
16.3

B
mm
ref
12.0

C
mm
max
16.8

D
mm
ref
0.7

E
mm
ref
6.7

F
mm
max
7.8

G
mm
ref
2.0

H
mm
ref
0.1

TRANSFORMERS (VP1-5/VPH1-5) VERSA-PAC®

VP1 and VPH1

A
mm
max
12.9

9
1:1:1:1:1:1

9
1:1:1:1:1:1
I
mm
ref
0.30

J
mm
ref
14.25

K
mm

L
mm

1.75

2.5

M
mm
ref
13.0

N
mm
max
18.0

O
mm

P
mm

2.5

0.75

PM-159

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

VERSA-PAC®
Inductors and Transformers
(Surface Mount)
Mechanical Diagrams
VP3 and VPH3
TOP VIEW

WHITE DOT
PIN #1
D
(12 PLCS)

M
L
1
12

1

I

VPH_-_ _ _ _

12
COMPONENT
SIDE

A

LOGO
(OPTIONAL)
6

J
(12PLCS)

O
(10PLCS)
N
(10PLCS)

6

7

NOTES

K (12PLCS)

1) Tolerances A - I are ± 0.25 mm
unless specified otherwise.
2) Tolerances J - P are +/- 0.1 mm
unless specified otherwise.
3) Marking as shown
a) Dot for pin #1 identification
b) On top of unit: -- VPHx-xxx
(product code, size,
4 digit part number per family
table.)
c) On top of unit: Versa Pac
Logo (optional)
d) On bottom of unit: wwllyy =
(date code) R = (revision
level)
4) All soldering surfaces must be
coplanar within 0.102 mm.

7
1

4

12
2

9
5

11
3

8
6

B
C

FRONT VIEW

E
H
(12 PLCS)

G
(12 PLCS)

F (2 PLCS)

7

10

TRANSFORMERS (VP1-5/VPH1-5) VERSA-PAC®

1:1:1:1:1:1
A
mm
max
VP3 and VPH3 17.1

B
mm
ref
16.0

C
mm
max
22.3

D
mm
ref
0.7

E
mm
max
8.4

F
mm
ref
3.0

G
mm
ref
0.1

H
mm
ref
0.4

I
J
mm mm
ref
14.49 1.79

K
mm

L
M
mm mm
ref
max
3.43 16.88 23.74

N
mm

O
mm

2.54

0.75

VP4 and VPH4
WHITE DOT
PIN #1
D
(12 PLCS)

M
L

TOP VIEW
1
12

1

I

VPH_-_ _ _ _

COMPONENT
SIDE

A

LOGO
(OPTIONAL)
6

J
(12PLCS)

O
(10PLCS)

12

6

N
(10PLCS)
7

NOTES

K (12PLCS)

1) Tolerances A - I are ± 0.25 mm
unless specified otherwise.
2) Tolerances J - P are +/- 0.1 mm
unless specified otherwise.
3) Marking as shown
a) Dot for pin #1 identification
b) On top of unit: -- VPHx-xxx
(product code, size,
4 digit part number per family
table.)
c) On top of unit: Versa Pac
Logo (optional)
d) On bottom of unit: wwllyy =
(date code) R = (revision
level)
4) All soldering surfaces must be
coplanar within 0.102 mm.

7
1

4

12
2

9
5

11
3

8
6

B
C

FRONT VIEW

E
H
(12 PLCS)

G
(12 PLCS)

F (2 PLCS)

7

10
1:1:1:1:1:1

A
mm
max
VP4 and VPH4 18.0

B
mm
ref
18.0

C
mm
max
24.6

D
mm
ref
0.7

E
mm
max
10.0

F
mm
ref
3.3

G
mm
ref
0.1

H
mm
ref
0.4

I
J
mm mm
ref
14.25 1.75

K
mm

L
M
mm mm
ref
max
3.43 19.14 26.0

N
mm

O
mm

2.5

0.75

PM-160

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

VERSA-PAC®
Inductors and Transformers
(Surface Mount)
Mechanical Diagrams
VP5 and VPH5
TOP VIEW

WHITE DOT
PIN #1
D
(12 PLCS)

M
L
1
12

1

I

VPH_-_ _ _ _

COMPONENT
SIDE

A

LOGO
(OPTIONAL)
6

J
(12PLCS)

O
(10PLCS)

12

6

N
(10PLCS)
7

K (12PLCS)

NOTES

7
1

4

12
2

9
5

11
3

8
6

1) Tolerances A - I are ± 0.25 mm
unless specified otherwise.
2) Tolerances J - P are +/- 0.1 mm
unless specified otherwise.
3) Marking as shown
a) Dot for pin #1 identification
b) On top of unit: -- VPHx-xxx
(product code, size,
4 digit part number per family
table.)
c) On top of unit: Versa Pac
Logo (optional)
d) On bottom of unit: wwllyy =
(date code) R = (revision
level)
4) All soldering surfaces must be
coplanar within 0.102 mm.

B
C

FRONT VIEW

E
H
(12 PLCS)

G
(12 PLCS)

F (2 PLCS)

7

10
1:1:1:1:1:1

B
mm
ref
21.0

C
mm
max
28.5

D
mm
ref
0.7

E
mm
max
10.8

F
mm
ref
2.95

G
mm
ref
0.1

H
mm
ref
0.4

I
J
mm mm
ref
17.25 2.25

K
mm
3.15

L
mm
ref
22.7

M
mm
max
29.0

N
mm

O
mm

3.0

0.75

TRANSFORMERS (VP1-5/VPH1-5) VERSA-PAC®

A
mm
max
VP5 and VPH5 21.0

Inductance Characteristics

OCL vs. Isat
100.0%
90.0%
80.0%

% of OCL

70.0%
60.0%
50.0%
40.0%
30.0%
20.0%
10.0%
0.0%
0.0%

20.0%

40.0%

60.0%

80.0%

100.0%

120.0%

140.0%

160.0%

180.0%

200.0%

% of Isat
PM-161

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

VERSA-PAC®
Inductors and Transformers
(Surface Mount)

HOW TO USE MULTIPLE WINDINGS
Discrete inductors combine like resistors, when connected in series or parallel. For example, inductors in series add and
inductors in parallel reduce in a way similar to Ohm’s Law.

LSeries = L1 + L2 + L3...Ln
LParallel = 1/ [1/L1 + 1/ L2 + 1/ L3....1/Ln]
Windings on the same magnetic core behave differently. Two windings in series result in four times the inductance of a
single winding. This is because the inductance varies proportionately to the square of the turns.
Paralleled VERSA-PAC windings result in no change to the net inductance because the total number of turns remains
unchanged; only the effective wire size becomes larger. Two parallel windings result in approximately twice the current
carrying capability of a single winding. The net inductance of a given PCM configuration is based on the number of
windings in series squared multiplied by the inductance of a single winding (L ). The current rating of a PCM configuration
is derived by multiplying the maximum current rating of one winding (I ) by the number of windings in parallel. Examples of
simple two-winding devices are shown below:
BASE

BASE

Series Connected (2 Windings)

Parallel Connected (2 Windings)

10μH
1 Amp
10μH
1 Amp

10μH
1 Amp

TRANSFORMERS (VP1-5/VPH1-5) VERSA-PAC®

10μH
1 Amp

2

LTOTAL = LBASE x S IMAX = IBASE x P
= 10 μH x 2
= 1 Amp x 1
= 40 μH
= 1 Amp

L

2

2

TOTAL

= LBASE x S IMAX = IBASE x P
= 10 μH x 1
= 1 Amp x 2
= 10 μH
= 2 Amps
2

Where:

LBASE =

Inductance of a single winding

P = Number of windings in parallel (use 1 with all windings in series)
S = Number of windings in series

IBASE =

Maximum current rating of one winding

PM-162

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

VERSA-PAC®
Inductors and Transformers
(Surface Mount)

HOW TO PIN-CONFIGURE VERSA-PAC

®

Each VERSA-PAC can be configured in a variety of ways by simply connecting pins together on the Printed Circuit Board
(PCB). As shown below, the connections on the PCB are equal to the pin configuration statement shown at the bottom of the
schematic symbol. Connecting a number of windings in parallel will increase the current carrying capability, while connecting
in series will multiply the inductance. Each VERSA-PAC part can be configured in at least 6 combinations for inductor use or
configured in at least 15 turns ratios for transformer applications. Given 25 VERSA-PAC part numbers, this allows for at least
500 magnetic configurations. The PCM configurations can either be created by the designer or simply chosen from the
existing PCM diagrams. The following inductor example shows 6 windings in series, which result in an inductance of 36 times
the base inductance and 1 times the base current.

INDUCTOR EXAMPLE
FOR SIZES VP3, VP4 AND VP5
LTOTAL = 36 x LBASE
1

4

12

9

2
11

5
8

3

6

10

7

Component View

= 36 times the base
Inductance from Data Table.

1

12

6

7

1

7

PIN CONFIGURATIONS
(2,12)(3,11)(4,10)(5,9)(6,8)

TRANSFORMER EXAMPLE
FOR SIZES VP3, VP4 AND VP5

1:5
1

4

12

9

2
11

5
8

3

6

10

7

1

12

6

7

LPRIMARY = 1 x LBASE
1

2

IPRI = 1 x IBASE

ISEC = 1 x IBASE

12

TRANSFORMERS (VP1-5/VPH1-5) VERSA-PAC®

Each VERSA-PAC may be used in at least 15 transformer applications. More than 375 transformer combinations may be
achieved using the available 25 VERSA-PAC parts.

7

PIN CONFIGURATIONS
(3,11)(4,10)(5,9)(6,8)

The PCM configurations may be selected from the examples on the following pages or created by the designer. Six PCM
inductor and fifteen PCM transformer configurations and equivalent circuit schematics are shown. The printed circuit board
layout in each example illustrates the connections to obtain the desired inductance or turns ratio. The examples may be
used by the PCB designer to configure VERSA-PAC as desired.
To assist the designer, VERSA-PAC phasing, coupling and thermal issues have been considered in each of the PCM
configurations illustrated. Additionally, the inductance and current ratings, as a function of the respective base values from
the following Data Tables, are shown in each PCM example. Turns ratios are also given for each PCM Transformer shown.
It is important to carefully select the proper VERSA-PAC part in order to minimize the component size without exceeding
the RMS current capability or saturating the core. The Data Tables indicate maximum ratings.
PM-163

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

VERSA-PAC®
Inductors and Transformers
(Surface Mount)
VERSA-PAC ® Performance Characteristics

Bipolar (Push-Pull) Power vs Frequency

Unipolar (Flyback) Power vs Frequency
40.0

70.0

35.0

60.0

30.0

VP 5

25.0

VP 5

40.0

Watts

Watts

50.0

30.0

20.0

VP 4
15.0

VP 4
20.0

VP 3

10.0

VP 3

VP 2

10.0

5.0

VP 2
VP 1

0.0
100

200

300

400

VP 1

0.0
100

500

200

300

400

500

Frequency, kHz

Frequency, kHz

TRANSFORMERS (VP1-5/VPH1-5) VERSA-PAC®

These curves represent typical power handling capability.
Indicated power levels may not be achievable with all configurations.
3.3V Buck Converter

5V to 3.3V Buck Converter With 5V Output

This circuit utilizes the gap of the VP5-0083 to handle the 12.5
Amp output current without saturating. In each of the five VERSAPAC sizes, the gap is varied to achieve a selection of specific
inductance and current values (see VERSA-PAC Data Table).

This circuit minimizes both board space and cost by eliminating a
second regulator. VERSA-PAC’s gap serves to prevent core
saturation during the switch on-time and also stores energy for the
+5V load which is delivered during the flyback interval. The +3.3V
buck winding is configured by placing two windings in series while
the +5V is generated by an additional flyback winding stacked on
the 3.3V output. Extra windings are paralleled with primary
windings to handle more current. The turns ratio of 2:1 adds 1.67V
to the +3.3V during the flyback interval to achieve +5V.

All six windings are connected in parallel to minimize AC/DC copper losses and to maximize heat dissipation. With VERSA-PAC,
this circuit works well at or above 300 KHz. Also, the closed fluxpath EFD geometry enables much lower radiation characteristics
than open-path bobbin core style components.

+V

VERSA-PAC
VP5-0083

+V

Synchronous
Controller
IC

1
2
3
4
5
6

12
11
10
9
8
7

RTN

1,2

Synchronous
Controller
IC

VERSA-PAC
VP5-0083

+5V@
1A

7

6

+3.3V@
12.5A

12,11
3,4,5

+

+

LEVEL SHIFT

10,9,8

RTN

+3.3V@
4.2A

+

LITHIUM-ION BATTERY TO 3.3V SEPIC CONVERTER
The voltage of a Lithium-Ion Battery varies above and below
+3.3V depending on the degree of charge. The SEPIC configuration takes advantage of VERSA-PAC’s multiple tightly coupled
windings. This results in lower ripple current which lowers noise
and core losses substantially. The circuit does not require a snubber to control the voltage “spike” associated with switch turn-off,
and is quite efficient due to lower RMS current in the windings.

VERSA-PAC
VP5-0083
12 11 10

4 5 6
+

+

Controller
IC
W/Integral
Switch

1 2 3

+3.3V@
6A

9 8 7

+

PM-164

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Power Over Ethernet (PoE)/PD
Configurable Transformer
Description
RoHS
2002/95/EC
• Versatile design allows multiple output variations
• Flyback topology, 250Khz switching frequency
• Input range from 29.5-60V
• 1500VAC isolation between primary and secondary
• Three power levels 4, 7, and 13watts
• Low leakage inductance
• 11.0 Volt @ 0.10 Amp Feedback Winding
• Ferrite core material
Applications
• For IEEE 802.3af-compliant Power over Ethernet applications
• UPS, VoiP Phone, Wireless LAN Access point,
Bluetooth Access point, Network Camera, Building
Access Systems
• Retail Point-of-information systems
• Vending/Gaming Machines
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating ambient temperature range: -40°C to +85°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
max.

(3)x3.3V@0.45A
(3)x5.0V@0.30A
(2)x12.0V@0.20A

DCR/
PRI
(ohms)
0.500
0.500
0.500

DCR/
SEC
(ohms)
0.07
0.27
0.740

Output

Leakage
Pri
Turn Ratio
Inductance Current Schematic 1: Pins pri(3-1):fb(5-6):v1(12-7):v2(11-8):v3(10-9)
e (uH) typ. Pk (Adc)
Schematic 2: Pins pri(3-1):fb(5-6):v1(12-10):v2(11-9)
2.75
0.65
1 : 0.52 : 0.16 : 0.16 : 0.16 +/-1%
2.50
0.65
1 : 0.52 : 0.26 : 0.26 : 0.26 +/-1%
1.40
0.65
1 : 0.52 : 0.60 : 0.60 +/-1%

Schematic
1
1
2

Dimensions
Size 1
Size 1
Size 1

PoE7W3x3.3-R
PoE7W3x5.0-R
PoE7W2x12-R

7
7
7

100
100
100

(3)x3.3V@0.75A
(3)x5.0V@0.50A
(2)x12.0V@0.30A

0.275
0.275
0.275

0.03
0.095
0.250

1.00
1.00
1.00

1.00
1.00
1.00

1 : 0.529 : 0.176 : 0.176 : 0.176 +/-1%
1 : 0.529 : 0.265 : 0.265 : 0.265 +/-1%
1 : 0.529 : 0.588 : 0.588 +/-1%

1
1
2

Size 1
Size 1
Size 1

PoE13W3x3.3-R
PoE13W3x5.0-R
PoE13W2x12-R

13
13
13

100
100
100

(3)x3.3V@1.35A
(3)x5.0V@0.90A
(2)x12.0V@0.60A

0.250
0.250
0.250

0.032
0.075
0.280

1.50
1.20
1.00

1.60
1.60
1.70

1 : 0.529 : 0.176 : 0.176 : 0.176 +/-3%
1 : 0.529 : 0.265 : 0.265 : 0.265 +/-3%
1 : 0.529 : 0.647 : 0.647 +/-3%

1
1
2

Size 2
Size 2
Size 2

Turn Ratio
Schematic 2: Pins pri(3-1):fb(5-6):v1(12-10):v2(11-9)
Schematic 3: Pins pri(1-3):fb(5-6):v3(12-11):v2(8-7)

Schematic

Dimensions

Part Number

Inductance
Watts (uH)

PoE13W3VERS-R

13

100

PoE13W2VERS-R

13

100

Output
V1:7.0V@1.1A,
V2:(1)x3.3V@1.1A,
V3:1.8V@1.1A
V1:5.0V@1.6A,
V2:3.3V@1.6A

1) Test Parameters: 100kHz, 0.100 Vrms, 0.0Adc
2) DCR limits maximum @ 20°C

DCR/
DCR/
Leakage
Pri
PRI
SEC
Inductance Current
(ohms) V1/V2/V3 e (uH) typ. Pk (Adc)
0.250

0.025/0.0
42:0/085

1.00

1.70

1 : 0.529 : 0.350 : 0.176 : 0.088 +/-3%

3

Size 2

0.250

0.023/0.0
38/na

1.20

1.70

1 : 0.529 : 0.265 : 0.176 +/-3%

2

Size 2

TRANSFORMERS (PoE4W, 7W, 13W) FLYBACK

Part Number
PoE4W3x3.3-R
PoE4W3x5.0-R
PoE4W2x12-R

Inductance
Watts (uH)
4
200
4
200
4
200

Packaging
• Packaging Information: 4 and 7 Watts 200 parts
per 13" reel, 13 Watts 140 parts per 13" reel

3) Leakage Inductance 200kHz, 0.01Vrms, 0.0Adc
4) Feedback DCR 1.0 Ohms maximum @20°C

PM-165

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Power Over Ethernet (PoE)/PD
Configurable Transformer
Mechanical Diagrams
TOP VIEW

FRONT VIEW

RECOMMENDED PCB LAYOUT

White Dot Pin #1

M
E

12

1
D
(12 plcs)

L

PoE
A

H
(12 plcs)

G
(12 plcs)

1

F
(2 plcs)

J
(12plcs)

Component Side

I

7

6

6

B

O
(10plcs)

12

N
(10plcs)
7

K
(12plcs)

C

DIMENSIONS

Size 1
Size 2

A
mm
max.
17.1
18.0

B
mm
ref.
16.0
18.0

C
mm
max.
22.3
24.6

D
mm
ref.
0.7
0.7

E
mm
max.
8.4
10.0

F
mm
ref.
3.0
3.3

G
mm
ref.
0.1
0.1

H
mm
ref.
0.4
0.4

I
mm
ref.
14.49
14.25

J
mm
1.79
1.75

K
mm
3.43
3.43

L
mm
ref.
16.88
19.14

M
mm
max.
23.74
26.0

N
mm
2.54
2.5

O
mm
0.75
0.75

1) Tolerances A - H are ± 0.25mm unless specified otherwise.
2) Tolerances I - O are ± 0.10mm unless specified otherwise
2) All soldering surfaces are coplaner to within ± 0.102mm.

Schematic Diagrams

TRANSFORMERS (PoE4W, 7W, 13W) FLYBACK

SCHEMATIC 1

SCHEMATIC 2

SCHEMATIC 3

Output

Output
Primary

Primary

Output

Primary

Output

Output
Feedback

Output
Feedback

Feedback
Output

Output

PM-166

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Power Over Ethernet (PoE)/PD
Configurable Transformer
Mechanical Diagrams
PoE 4 and 7 Watt

PoE 13 Watt

TRANSFORMERS (PoE4W, 7W, 13W) FLYBACK

PM-167

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Power Over Ethernet (PoE)/PD
Configurable Transformer
Description
RoHS
2002/95/EC
• Versatile design allows multiple output variations
• Forward topology, 300Khz switching frequency
• Input range from 29.5-60V
• 1500VAC isolation between primary and secondary
• Power 26watts
• Low leakage inductance
Applications
• For IEEE 802.3af-compliant Power over Ethernet applications
• UPS, VoiP Phone, Wireless LAN Access point,
Bluetooth Access point, Network Camera, Building
Access Systems
• Retail Point-of-information systems
• Vending/Gaming Machines
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating ambient temperature range: -40°C to +85°C
(range is application specific)
• Solder reflow temperature: +260°C max. for
10 seconds maximum

TRANSFORMERS (PoE26W) FORWARD

Primary
Induct.
Part Number
Watts
(uH)
Output
Bias
Sync
PoE26W3.3VS5-R 26
160
(2)x3.3V@4.0A 10.0V@0.1A 5V@0.1A
PoE26W3.3VS10-R 26
160
(2)x3.3V@4.0A 10.0V@0.1A 10V@0.1A
PoE26W5V-R
26
160
(2)x5.0V@2.6A 10.0V@0.1A 5.0V@0.1A

Packaging
• Packaging information: 115 parts per 13" reel

DCR/
Pri
(ohms)
max
0.100
0.100
0.100

(1) Test parameters: 100kHz, 0.100Vrms, 0.0Adc
(2) DCR limits maximum @ 20°C

DCR/ DCR/ DCR/ Leakage Pri
Sec
Bias Sync Induct. Current Turns ratio pins Pri (2 - 4):
(ohms) (ohms) (ohms) (uh)
Pk
V1 (12 - 10): V2 (11 - 9):
max
max
max
typ. (Adc)
Bias (1 - 6): Sync (7 - 8)
0.025
0.90
0.42
1.0
2.6
1:0.29:0.29:0.83:0.42 +/-2%
0.025
0.90
0.90
1.0
2.6
1:0.29:0.29:0.83:0.83 +/-2%
0.050
0.90
0.42
1.0
2.6
1:0.42:0.42:0.83:0.42 +/-2%

(3) Leakage Inductance 300kHz, 0.01Vrms, 0.0Adc

Mechanical Diagram
SCHEMATIC
12

2

Primary

TOP VIEW
White Dot Pin #1

M

D
(12 plcs)

FRONT VIEW

12

1

L
1

PoE
A

J
(12plcs)

E

7

H
(12 plcs)

G
(12 plcs)

F
(2 plcs)

12
Component Side

I
6

Output

RECOMMENDED PCB LAYOUT

6

B
C

O
(10plcs)

N
(10plcs)

4

10

1

11

Bias

Output

7

K
(12plcs)

9

6

7

Sync

8

DIMENSIONS
A
mm
max.
21.5

B
mm
ref.
22.0

C
mm
max.
28.5

D
mm
ref.
0.7

E
mm
max.
10.8

F
mm
ref.
2.95

G
mm
ref.
0.1

H
mm
ref.
0.4

I
mm
ref.
17.25

J
mm
2.25

K
mm
3.15

L
mm
ref.
23.2

M
mm
max.
29.5

N
mm
3.0

O
mm
0.75

1) Tolerances A - H are ± 0.25mm unless specified otherwise.
2) Tolerances I - O are ± 0.10mm unless specified otherwise
2) All soldering surfaces are coplaner to within ± 0.102mm.

PM-168

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Power Over Ethernet (PoE)/PD
Configurable Transformer
Packaging Information

TRANSFORMERS (PoE26W) FORWARD

PM-169

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

CCFL TRANSFORMERS
Cold Cathode Fluorescent
Lamp Inverter Transformers

TRANSFORMERS (CCFL)

Description
RoHS
• Transformers for use in CCFL power supplies, avail- 2002/95/EC
able in through-hole and surface mount
recess or gull wing versions, incorporating
floating or fixed secondary technology
• Supply output current up to 30 milli-Amps
• Frequency range from 40 to 80 KHz
• Deliver output power from 2.5 to 14 Watts
• Operate in royer and other topologies
• Ferrite core material
Applications
• CCFL power supplies
Environmental Data
• Storage temperature range: -40°C to +85°C
• Operating ambient temperature range: 0°C to +70°C
• Solder reflow temperature: +260°C max. for 10 seconds
max.

Part
Schematic Pout
Number
Diagram Watts
2.5 WATT VERSIONS
CTX110652-R
A
2.5
CTX110655-R
B
2.5
CTX110657-R
B
2.5
CTX110659-R
B
2.5
CTX210652-R
A
2.5
CTX210655-R
B
2.5
CTX210657-R
B
2.5
CTX210659-R
B
2.5
4 WATT VERSIONS
CTX210403-R
C
4
CTX210407-R
C
4
CTX210409-R
C
4
CTX210411-R
C
4
CTX310403-R
C
4
CTX310407-R
C
4
CTX310409-R
C
4
CTX310411-R
C
4
6 WATT VERSIONS
CTX110600-R
D
6
CTX110603-R
C
6
CTX110605-R
C
6
CTX110607-R
C
6
CTX110609-R
C
6
CTX110611-R
C
6
CTX210600-R
D
6
CTX210603-R
C
6
CTX210605-R
C
6
CTX210607-R
C
6
CTX210609-R
C
6
CTX210611-R
C
6
14 Watt Versions
CTX410805-R
E
14
CTX410807-R
E
14
CTX410809-R
E
14
Inductances are nominal values

1

Lp
μH1

2

Packaging
• Supplied in bulk packaging

DCRp
DCRs
TR
Vpri
Vsec
Is Max
Vpri
Vsec
Mechanical PCB Pad
Ohms Max Ohms Max Ns/Np Volts Max2 Volts Max2 A rms Abnormal3 Abnormal3 Dimensions Layout

43
43
26
19
43
43
26
19

0.220
0.220
0.212
0.190
0.220
0.220
0.212
0.190

285
285
285
285
285
285
285
285

67
67
86
100
67
67
86
100

20
20
15
13
20
20
15
13

1340
1340
1340
1340
1340
1340
1340
1340

.005
.005
.005
.005
.005
.005
.005
.005

30
30
23
23
30
30
23
23

2000
2000
2000
2000
2000
2000
2000
2000

A
A
A
A
B
B
B
B

A
A
A
A
B
B
B
B

44
27
20
20
44
27
20
20

0.220
0.160
0.160
0.160
0.220
0.160
0.160
0.160

165
220
220
330
165
220
220
330

50
86
100
125
50
86
100
125

26
15
13
10
26
15
13
10

1340
1340
1340
1340
1340
1340
1340
1340

.007
.007
.007
.007
.007
.007
.007
.007

40
23
23
16
40
23
23
16

2000
2000
2000
2000
2000
2000
2000
2000

C
C
C
C
D
D
D
D

C
C
C
C
D
D
D
D

44
44
44
27
20
20
44
44
44
27
20
20

0.160
0.160
0.160
0.132
0.132
0.132
0.160
0.160
0.160
0.132
0.132
0.132

176
132
176
176
176
291
176
132
176
176
176
291

67
50
67
86
100
125
67
50
67
86
100
125

20
26
20
15
13
11
20
26
20
15
13
11

1340
1340
1340
1340
1340
1340
1340
1340
1340
1340
1340
1340

.011
.011
.011
.011
.011
.011
.011
.011
.011
.011
.011
.011

30
40
30
23
23
16
30
40
30
23
23
16

2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000

E
E
E
E
E
E
F
F
F
F
F
F

E
E
E
E
E
E
C
C
C
C
C
C

24
16
16

0.030
0.024
0.024

262
272
314

67
86
100

20
15
13

1340
1340
1340

.030
.030
.030

30
23
23

2000
2000
2000

G
G
G

F
F
F

Continuous RMS Voltage

3

Maximum Instantaneous RMS Voltage

PM-170

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

CCFL TRANSFORMERS
Cold Cathode Fluorescent
Lamp Inverter Transformers
Mechanical Diagrams
2.5 Watt Versions
Pad Layout A

Mechanical B

Mechanical A

Pad Layout B

TOP VIEW
TOP VIEW
Schematic A

Schematic B

Dimensions are in millimeters

Mechanical C

Mechanical D

Pad Layout C

TRANSFORMERS (CCFL)

4 Watt Versions
Pad Layout D

TOP VIEW
TOP VIEW
Schematic C

Dimensions are in millimeters

PM-171

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

CCFL TRANSFORMERS
Cold Cathode Fluorescent
Lamp Inverter Transformers
Mechanical Diagrams
6 Watt Versions
Mechanical F

Mechanical E

Pad Layout E

Pad Layout C

TOP VIEW

TOP VIEW
Schematic D

Schematic C

TRANSFORMERS (CCFL)

Dimensions are in millimeters

14 Watt Versions
Schematic E

Mechanical G

Pad Layout F

BOTTOM VIEW

Dimensions are in millimeters

PM-172

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

STANDARD GEOMETRIES
Low Cost Magnetic Components
Description
RoHS
2002/95/EC
• Low cost magnetic components for custom
specifications
• Power range from 1 Watt to 120 Watts
• Frequency range from 20kHz to .5MHz
• High power density and low radiated noise
• Meets UL 94V-0 flammability standard
• Ferrite core material
Applications
• Inductors: buck, boost, coupled, choke, filter, resonant,
noise filtering, differential, forward, common mode
• Transformers: flyback, feed forward, push-pull, multiple
output, inverter, step-up, step-down, gate drive, base
drive, wide band, pulse, control, impedance, isolation,
bridging, ringer, converter, auto
Environmental Data
• Storage temperature range: -55°C to +125°C
• Operating ambient temperature range: -40°C to +85°C
(range is application specific). The internal “hot spot”
temperature defines the maximum allowable currents,
which are limited to 130°C, including ambient
• Solder reflow temperature: +260°C max. for 10 seconds
max.

Specifications
Core
AL-1, nH/T2
AL-2, nH/T2
AL-3, nH/T2
AL-4, nH/T2
AL-5, nH/T2
Ae, min. core area, cm2
le, mag. path lgth., cm
Ve, core volume, cm3
MLT, ave. turn length, cm
Wa, usable wdg. area, cm2 *
WaAc, cm4
UL flammability rating

STANDARD GEOMETRIES SIZES 1 TO 5 CORE AND BOBBIN PARAMETERS
SG1
SG2
SG3
SG4
ER 11/5
ER 14.5/6
EFD 15
EFD 17
1400
1600
780
1028
190
216
138
140
102
116
84
75
76
83
55
60
59
66
47
47
0.0900
0.1520
0.1220
0.1960
1.46
1.90
3.40
4.12
0.170
0.330
0.510
0.940
2.1666
2.7051
2.6805
3.2202
0.0171
0.0302
0.0915
0.1051
0.0015
0.0046
0.0112
0.0206
94V-0
94V-0
94V-0
94V-0

STANDARD GEOMETRIES SIZES 6 TO 9 CORE AND BOBBIN PARAMETERS
SG6
SG7
SG8
EE8.3
EF12.6
EE13
675
1075
1100
96
95
128
——
——
——
58
57
77
——
——
——
0.0600
0.1003
0.1380
1.92
2.96
3.06
0.1564
0.3860
0.5479
2.0880
2.5480
3.2300
0.0317
0.0769
0.1114
0.00190
0.00772
0.01540
94V-0
94V-0
94V-0

SG5
EFD 20
1200
155
83
67
53
0.3100
4.70
1.460
3.8359
0.1441
0.0447
94V-0

SG9
SEE16
1254
153
——
92
——
0.1848
3.55
0.8552
3.7780
0.1849
0.03416
94V-0

TRANSFORMERS (SG) STANDARD GEOMETRIES

Specifications
Core
AL-1, nH/T2
AL-2, nH/T2
AL-3, nH/T2
AL-4, nH/T2
AL-5, nH/T2
Ae, min. core area, cm2
Ie, mag. path lgth., cm
Ve, core volume, cm3
MLT, ave. turn length, cm
Wa, usable wdg. area, cm2 *
WaAc, cm4
UL flammability rating

Packaging
• Supplied in tape and reel packaging (SG01, SG02,
SG03, SG06 and SG07)
• Supplied in bulk packaging (SG04, SG05, SG08
and SG09)
• Consult the factory for SG04 and SG05 tape and reel
packaging

* Fill Factor considered

PM-173

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

STANDARD GEOMETRIES
Low Cost Magnetic Components
Mechanical Diagrams
WHITE DOT PIN#1

TOP VIEW

RECOMMENDED PCB PAD PATTERN
COMPONENT VIEW

.7 REF
1

14.2 MAX
9.7 REF

12

.5 (10 PLCS)
12.9
MAX

1.5
(12 PLCS)

SG SIZE 1
ER 11/5

11.5 REF
7

6

2.0 (10PLCS)

9.2 REF
2.25
(12PLCS)

13.0 MAX
FRONT VIEW
5.9 REF

PACKAGING INFORMATION

6.2
MAX

Parts packaged on 13" reels,
600 parts per reel.

.25 REF

WHITE DOT PIN#1

Bulk packaging also available.

1.5 REF

.10 REF

RECOMMENDED PCB PAD PATTERN
COMPONENT VIEW

TOP VIEW

.7 REF
18.0 MAX
1

12

13.0 REF
.75 (10 PLCS)

TRANSFORMERS (SG) STANDARD GEOMETRIES

16.3
MAX

1.75
(12 PLCS)

SG SIZE 2
ER 14.5/6

14.25 REF
7

6

2.5 (10 PLCS)

12.0 REF

2.5
(12 PLCS)

16.8 MAX
FRONT VIEW
6.7 REF

PACKAGING INFORMATION

7.4
MAX

Parts packaged on 13" reels,
300 parts per reel.

.30 REF
.10 REF

Bulk packaging also available.

2.0 REF

TOP VIEW

RECOMMENDED PCB PAD PATTERN
COMPONENT VIEW

WHITE DOT PIN #1
.7 REF
1

23.74 MAX
16.88 REF

12

.75 (10 PLCS)
17.1
MAX

SG SIZE 3
EFD 15

1.79
(12 PLCS)
14.49 REF

6

7

2.54 (10 PLCS)
3.43
(12 PLCS)

16.0 REF
22.3 MAX
FRONT VIEW

PACKAGING INFORMATION
.40 REF
.10 REF

8.4
MAX

Parts packaged on 13" reels,
200 parts per reel.

3.0 REF

Bulk packaging also available.

PM-174

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

STANDARD GEOMETRIES
Low Cost Magnetic Components

TOP VIEW

RECOMMENDED PCB PAD PATTERN
COMPONENT VIEW

WHITE DOT PIN #1
.7 REF
1

26.0 MAX
19.14 REF

12

.75 (10 PLCS)
18.0
MAX

1.75
(12 PLCS)

SG SIZE 4
EFD 17

14.25 REF
6

2.5 (10 PLCS)

7

18.0 REF

3.43
(12 PLCS)

24.6 MAX

FRONT VIEW

PACKAGING INFORMATION
10.0
MAX

.40 REF

Parts packaged in pick and
place compatible bulk trays,
9.8" x 6.7", 6 rows by 7
columns, 42 parts per tray.

3.3 REF

.10 REF

TOP VIEW

RECOMMENDED PCB PAD PATTERN
COMPONENT VIEW

WHITE DOT PIN #1
.7 REF
1

Consult factory for
tape and reel packaging.

29.00 MAX
22.70 REF

12

.75 (10 PLCS)
21.0
MAX

2.25
(12 PLCS)

SG SIZE 5
EFD 20

7

3.0 (10 PLCS)

21.0 REF

3.15
(12 PLCS)

28.5 MAX

FRONT VIEW

PACKAGING INFORMATION
10.8
MAX

.40 REF

2.95 REF

.10 REF

Parts packaged in pick and
place compatible bulk trays,
9.8" x 6.7", 5 rows by 7
columns, 35 parts per tray.

Consult factory for
tape and reel packaging.

RECOMMENDED PCB LAYOUT
COMPONENT VIEW

TOP VIEW
PIN #1 INDICATORS

12.7 MAX

0.4 REF
1

5.8 REF

8
9.2
MAX

4

5

1.0 (6 PLCS)

SG SIZE 6
EE 8.3

TRANSFORMERS (SG) STANDARD GEOMETRIES

17.25 REF
6

7.0 REF 1.0
(8 PLCS)
2.0 (6 PLCS)

10.7 REF

3.3
(8 PLCS)

13.8 MAX

FRONT VIEW

0.4 REF

9.6
MAX

PACKAGING INFORMATION
Parts packaged on 13" reels,
400 parts per reel.
Bulk packaging also available.

PM-175

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

STANDARD GEOMETRIES
Low Cost Magnetic Components

TOP VIEW

SG SIZE 7
EF 12.6

RECOMMENDED PCB LAYOUT
COMPONENT VIEW

PIN #1 INDICATOR

16.4 MAX

0.4 REF

9.4 REF

10

1

14.1
MAX

1.34 (8 PLCS)
11.36 REF 1.2
(10 PLCS)

6

5

2.54 (8 PLCS)
14.4 REF
18.0 MAX

3.36
(10 PLCS)

FRONT VIEW

PACKAGING INFORMATION

10.6
MAX

0.4 REF

Parts packaged on 13" reels,
250 parts per reel.
Bulk packaging also available.

RECOMMENDED PCB LAYOUT
COMPONENT VIEW

TOP VIEW
PIN #1 INDICATORS
0.5 REF

16.3 MAX
1

12

8.8 REF

TRANSFORMERS (SG) STANDARD GEOMETRIES

1.34 (10 PLCS)
15.8
MAX

SG SIZE 8
EE 13

13.9 REF 1.2
(12 PLCS)

7

6

2.54 (10 PLCS)

14.2 REF
17.8 MAX
FRONT VIEW

3.60
(12 PLCS)

PACKAGING INFORMATION

15.0
MAX

Parts packaged in pick and
place compatible bulk trays,
6 rows by 10 columns.
Total parts per tray = 60.

0.5 REF

TOP VIEW

RECOMMENDED PCB LAYOUT
COMPONENT VIEW

PIN #1 INDICATOR

19.2 MAX

0.5 REF
1

12

9.5 REF
1.34 (10 PLCS)
17.0
MAX

6

SG SIZE 9
SEE 16

13.9 REF

1.2
(12 PLCS)

7

2.54 (10 PLCS)
16.8 REF
21.0 MAX

4.7
(12 PLCS)

FRONT VIEW

PACKAGING INFORMATION
17.4
MAX
0.5 REF

Parts packaged in pick and
place compatible bulk trays,
5 rows by 10 columns.
Total parts per tray = 50.

PM-176

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

STANDARD GEOMETRIES
Low Cost Magnetic Components
Performance Specifications

Unipolar (Flyback)
Power vs Frequency

Unipolar (Flyback)
Power vs Frequency

100.0

100.0

Size07

Size03
Size02

10.0

Size05
Size08
Size04

Watts
Watts

Watts
Watts

Size09

10.0

Size06
Size01

1.0
100

200

300
Frequency,kHz
Frequency,
kHz

400

1.0

500

100

300

200

400

500

400

500

Frequency,kHz kHz
Frequency,

Bipolar (Push-Pull)
Power vs Frequency

Bipolar (Push-Pull)
Power vs Frequency

100.0

100.0

Size03
Size06
10.0

Watts
Watts

Watts
Watts

Size09
Size05
Size08
Size04

Size02

Size07
10.0

1.0
100

300

200

400

1.0
100

500

Frequency kHz
Frequency,
kHz

300

200

TRANSFORMERS (SG) STANDARD GEOMETRIES

Size01

Frequency, kHz

Maximum Turns
vs American Wire Gauge

Maximum Turns
vs American Wire Gauge
10000

10000

1000

1000
e09

Maximum Turns

Maximum Turns

Siz

5
e0
Siz 04
e
Siz
3
e0
Siz

e 02

Siz

100

e 01

Siz

10

1

08

Size

07

Size

e06

Siz

100

10

27 28

29 30 31

32

33

34 35 36

37

38 39

American Wire Gauge

40 41 42

1

27 28 29 30 31 32 33

34 35 36

37

38 39 40 41 42

American Wire Gauge

PM-177

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

CMS-SERIES
Common Mode Inductors
(Surface Mount)
Description
RoHS
2002/95/EC
• 160°C maximum total temperature
• Three sizes of surface mount torroidal common
mode inductors that provide 300Vdc isolation
• Inductance range from 5.5uH to 1600uH
• Current range up to 7.0 Amps
• Noise attenuation up to 44 dB
• Frequency range up to 100 MHz
• Meets UL94V-0 flammability standard
• Ferrite core material
Applications
• EMI filters
• DC-DC brick power supplies
• Discrete output supplies
• Discrete and point-of-use power supplies (PUPS)
Environmental Data
• Storage temperature range: -40°C to +160°C
• Operating ambient temperature range: -40°C to +160°C
(range is application specific)
• Solder reflow temperature: +260°C max for 10 seconds
max.

COMMON-MODE (CMS)

Part Number
CMS1-1-R
CMS1-2-R
CMS1-3-R
CMS1-4-R
CMS1-5-R
CMS1-6-R
CMS1-7-R
CMS1-8-R
CMS1-9-R
CMS1-10-R
CMS1-11-R
CMS1-12-R
CMS1-13-R
CMS1-14-R
CMS2-1-R
CMS2-2-R
CMS2-3-R
CMS2-4-R
CMS2-5-R
CMS2-6-R
CMS2-7-R
CMS2-8-R
CMS2-9-R
CMS2-10-R
CMS2-11-R
CMS2-12-R
CMS2-13-R
CMS2-14-R
CMS3-1-R
CMS3-2-R
CMS3-3-R

OCL
(uH) minimum
(1-2) & (3-4)
4.5
8
12.6
18
25
32.8
41.5
51.2
62
73.7
100
131
166
205
25
40
57
102
160
230
270
360
460
575
700
915
1070
1340
28
45
64

I rms.
Amperes
Max *
7.00
5.70
4.10
3.80
3.60
3.10
2.60
2.20
1.90
1.65
1.35
1.15
1.00
0.85
5.35
4.40
3.60
2.80
2.30
1.85
1.60
1.35
1.10
0.94
0.80
0.67
0.58
0.50
5.70
5.10
4.75

Packaging
• Supplied in tape and reel packaging, 2,000 (CMS1),
800 (CMS2), and 600 (CMS3) per reel

DCR (Ω) typ
@ 20°C
(1-2)
0.0027
0.0040
0.0077
0.0089
0.0100
0.0138
0.019
0.026
0.035
0.048
0.070
0.100
0.138
0.186
0.005
0.008
0.012
0.019
0.029
0.044
0.060
0.084
0.120
0.170
0.230
0.330
0.440
0.620
0.005
0.006
0.007

Definitions:
OCL = Open Circuit Inductance
DCR = Direct Current Resistance
Irms = rms current for approx. a 40°C temperature rise at an ambient temperature of 85°C.
*Operating Temperature: 160°C Max. Inductance values are sustained up to 160°C.

DCR (Ω) typ
@ 20°C
(4-3)
0.0027
0.0040
0.0077
0.0089
0.0100
0.0138
0.019
0.026
0.035
0.048
0.070
0.100
0.138
0.186
0.005
0.008
0.012
0.019
0.029
0.044
0.060
0.084
0.120
0.170
0.230
0.330
0.440
0.620
0.005
0.006
0.007

Leakage
Inductance (uH)
typ
0.05
0.09
0.14
0.20
0.28
0.36
0.45
0.056
0.68
0.81
1.10
1.45
1.83
2.25
0.22
0.34
0.47
0.80
1.25
1.75
2.00
2.60
3.30
4.00
5.00
6.30
7.30
9.00
0.31
0.46
0.64

Interwinding
Capacitance (pF)
typ
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.7
2.8
2.9
3.0
3.1
3.2
2.0
2.3
2.5
2.8
3.1
3.4
3.6
3.9
4.1
4.3
4.6
4.9
5.1
5.4
2.80
3.05
3.30

Electrical Characteristics:
OCL (1-2) 0.10Vrms, 100kHz, 0.0Adc: (See Chart)
OCL (4-3) 0.10Vrms, 100kHz, 0.0Adc: (See Chart)
DCR (1-2) typ @ 20°C: (See Chart)
DCR (4-3) typ @ 20°C: (See Chart)
Hipot rating: winding to winding: 300Vdc min. for 1 second.
Turns Ratio: (1-2):(4-3) 1:1

PM-178

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

CMS-SERIES
Common Mode Inductors
(Surface Mount)
Part Number
CMS3-4-R
CMS3-5-R
CMS3-6-R
CMS3-7-R
CMS3-8-R
CMS3-9-R
CMS3-10-R
CMS3-11-R
CMS3-12-R
CMS3-13-R
CMS3-14-R

OCL
(uH) minimum
(1-2) & (3-4)
88
146
217
258
350
400
518
648
790
1030
1310

I rms.
Amperes
Max *
3.95
3.10
2.85
2.45
2.00
1.70
1.45
1.20
1.05
0.88
0.75

DCR (Ω) typ
@ 20°C
(1-2)
0.010
0.017
0.020
0.027
0.040
0.053
0.076
0.107
0.145
0.210
0.300

Definitions:
OCL = Open Circuit Inductance
DCR = Direct Current Resistance
Irms = rms current for approx. a 40°C temperature rise at an ambient temperature of 85°C.
*Operating Temperature: 160°C Max. Inductance values are sustained up to 160°C.

DCR (Ω) typ
@ 20°C
(4-3)
0.010
0.017
0.020
0.027
0.040
0.053
0.076
0.107
0.145
0.210
0.300

Leakage
Inductance (uH)
typ
0.85
1.30
1.90
2.20
3.00
3.30
4.20
5.10
6.10
7.80
9.60

Interwinding
Capacitance (pF)
typ
3.50
3.70
3.90
4.15
4.40
4.65
4.85
5.10
5.35
5.55
5.80

Electrical Characteristics:
OCL (1-2) 0.10Vrms, 100kHz, 0.0Adc: (See Chart)
OCL (4-3) 0.10Vrms, 100kHz, 0.0Adc: (See Chart)
DCR (1-2) typ @ 20°C: (See Chart)
DCR (4-3) typ @ 20°C: (See Chart)
Hipot rating: winding to winding: 300Vdc min. for 1 second.
Turns Ratio: (1-2):(4-3) 1:1

Mechanical Diagrams
RECOMMENDED PCB LAYOUT

CMS1 Series
TOP VIEW

SCHEMATIC

9.4 max
FRONT VIEW

2

3
CMS1wwllyy R

4

1:1

7.2 max

1

1

4

2

3

2.6 max

Pin 1 indicator
White dot

CMS2 Series

CMS3 Series

COMMON-MODE (CMS)

wwllyy = Date code R = Revision level

PM-179

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

CMS-SERIES
Common Mode Inductors
(Surface Mount)
Packaging Information
CMS2 Series

CMS1 Series
4.0
See note 1

1.5 Dia
min.

1.5 Dia.
+0.1/-0.0

2.0
See note 6

.30
+/-0.05

Pin #1 indicator

0.30
+/-0.05

1.75

A

0.3Rad
max.

7.5
See note 6
Bo

Ao=9.3mm

16.0
+/-0.3

Bo=9.3mm

2.0
(see note 6)

1.5 dia
+0.1/-0.0

4.0
(see note 1)
1.5 dia
min

A
1.75

Pin #1 Indicator

0.3Rad
max.

11.5
(see note 6)
24.0
+/-0.3

B

Ko=6.4mm

Ao= 7.3mm
Bo= 10.1mm
Ko= 2.7mm
A

Ao

Ko

K

0.5Rad
typ.

6.7

12.0
SECTION A-A

12.0

A

A

SECTION A-A

Direction of feed

CMS3 Series

0.5 rad
typ

User direction of feed

4.0
(see note 1)
2.0
(see note 6)

1.5 dia
+0.1/-0.0

0.35
+/-0.05

A
1.75

Pin #1 Indicator

0.3Rad
max.

Ao=11.8mm

1.5 dia
min

11.5
(see note 6)

Bo=11.8mm

24.0
+/-0.3

B

Ko=6.8mm

K

0.5 rad
typ

A

A

7.1

16.0

SECTION A-A

User direction of feed

Attenuation Curves
Attenuation

CMS 1

Attenuation

Series

-1 -4

-7

-5
-10
dB

dB

-15
-20

-1

Series
-4 -7

-15
-20
-25
-30
-35

-25

-40
-45
-50

-30
-11

-35
1

-14
2

4

6

8

10

20

40

-11
1

60

-14

2

4

Attenuation

dB

6

8

10

20

40

60

FREQUENCY (MHz)

FREQUENCY (MHz)

COMMON-MODE (CMS)

CMS 2

0
-5
-10

0

0
-5
-10
-15
-20
-25
-30
-35
-40
-45
-50

CMS 3
-1

-11
1

Series
-4

-7

-14
2

4

6

8

10

20

40

FREQUENCY (MHz)

PM-180

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

CMS-SERIES
Common Mode Inductors
(Surface Mount)
Impedance Curves

350
300
250
200
150
100
50
0

Impedance

CMS1-1 & 4
4000

-4
-1

0.4

0.6

0.8

-14

1

2

3

4

6

8

-11

2000

0

10

0.4

0.6

CMS2 - 1 & 4

-1

0.6

0.8

1

2

4

6

1

Impedance

-4

0.4

0.8

8

10

20

18000
16000
14000
12000
10000
8000
6000
4000
2000
0

0.4

0.6

10

CMS2 - 7,11, & 14

0.8

1

Impedance

2

3

4

6

CMS3 - 7,11, & 14

16000
14000
Z (Ohms)

Z (Ohms)

8

-7

CMS3 - 1 & 4

-1

0.8

6

FREQUENCY (MHz)

-4

0.6

4

-11

0.4

1600
1400
1200
1000
800
600
400
200
0

3

-14

FREQUENCY (MHz)

Impedance

2

FREQUENCY (MHz)

Z (Ohms)

Z (Ohms)

Impedance

-7

1000

FREQUENCY (MHz)

1800
1600
1400
1200
1000
800
600
400
200
0

CMS1 - 7,11, & 14

3000
Z (Ohms)

Z (Ohms)

Impedance

1

2

3

4

FREQUENCY (MHz)

6

8

12000
10000
8000
6000
4000
2000
0
0.4

-14
-11
-7

0.6

0.8

1

2

3

4

6

8

FREQUENCY (MHz)

COMMON-MODE (CMS)

PM-181

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

CMT-SERIES
Common Mode Inductors
(Through-Hole)
Description
RoHS
2002/95/EC
• Four sizes of through-hole off-line
common mode inductors
• Inductance range from 0.53 - 66 mH
• Current range up to 6.5 Amps
• Noise attenuation up to 68 dB
• Frequency range up to 6 MHz
• Meets UL94V-0 flammability standard
• Ferrite core material
Applications
• Protects AC input from effects of switching regulators
• Off-line power supplies
• EMI filters
• DC-DC converters
• Computer, TV, VCR, audio and office equipment
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating ambient temperature range: -40°C to +85°C
range is application specific. The internal “hot-spot”
temperature defines the maximum allowable currents,
which are limited to 130°C, including ambient.

COMMON-MODE (CMT)

Part Number
CMT1-1-R
CMT1-2-R
CMT1-3-R
CMT1-4-R
CMT1-5-R
CMT1-6-R
CMT1-7-R
CMT1-8-R
CMT1-9-R
CMT1-10-R
CMT2-1-R
CMT2-2-R
CMT2-3-R
CMT2-4-R
CMT2-5-R
CMT2-6-R
CMT2-7-R
CMT2-8-R
CMT2-9-R
CMT2-10-R
CMT3-1-R
CMT3-2-R
CMT3-3-R
CMT3-4-R
CMT3-5-R
CMT3-6-R
CMT4-1-R
CMT4-2-R
CMT4-3-R
CMT4-4-R
CMT4-5-R
CMT4-6-R

OCL
(mH) min
(1-2)
66.0
49.0
28.0
21
13
7.50
4.20
2.40
1.85
0.94
30
20
12
8.0
6.0
4.8
3.2
2.4
2.0
1.6
5.4
3.5
2.7
1.3
0.92
0.53
5.4
3.5
2.7
1.3
0.92
0.53

OCL
(mH) min
(4-3)
66.0
49.0
28.0
21
13
7.50
4.20
2.40
1.85
0.94
30
20
12
8.0
6.0
4.8
3.2
2.4
2.0
1.6
5.4
3.5
2.7
1.3
0.92
0.53
5.4
3.5
2.7
1.3
0.92
0.53

Definitions:
OCL = Open Circuit Inductance
DCR = Direct Current Resistance
Irms = rms current for 40°C max temperature rise at worst case ambient temperature
of 85°C

Packaging
• Supplied in bulk packaging

I rms.
Amperes
max
0.74
0.88
1.13
1.37
1.76
2.27
2.89
3.85
4.53
6.05
1.50
1.95
2.45
2.80
3.40
3.95
4.40
4.75
5.45
5.75
2.0
2.6
3.0
4.0
5.0
6.5
2.0
2.6
3.0
4.0
5.0
6.5

DCR (Ω) typ
@ 20°C
(1-2)
1.20
0.85
0.50
0.35
0.20
0.13
0.08
0.045
0.033
0.018
0.350
0.220
0.135
0.100
0.070
0.053
0.042
0.037
0.028
0.026
0.12
0.08
0.055
0.032
0.021
0.013
0.12
0.08
0.055
0.032
0.021
0.013

DCR (Ω) typ
@ 20°C
(4-3)
1.20
0.85
0.50
0.35
0.20
0.13
0.08
0.045
0.033
0.018
0.350
0.220
0.135
0.100
0.070
0.053
0.042
0.037
0.028
0.026
0.12
0.08
0.055
0.032
0.021
0.013
0.12
0.08
0.055
0.032
0.021
0.013

Electrical Characteristics:
OCL (1-2) 0.10Vrms, 10kHz, 0.0Adc: (See Chart)
OCL (4-3) 0.10Vrms, 10kHz, 0.0Adc: (See Chart)
DCR (1-2) typ @ 20°C: (See Chart)
DCR (4-3) typ @ 20°C: (See Chart)
Hipot rating: winding to winding: 2400 Vac for 1 second.
Turns Ratio: (1-2):(4-3) 1:1

PM-182

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

CMT-SERIES
Common Mode Inductors
(Through-Hole)
Mechanical Diagrams
CMT1 Series
FRONT VIEW

BOTTOM VIEW

RECOMMENDED PCB LAYOUT

SIDE VIEW

SCHEMATIC

CMT1-X
wwll yy R

29.5 max

0.80 dia
1.15 dia ± 0.13

4

1

2

3

1

4

1

4

2

3

22.0 max
10.0 ± 0.20

component side

36.5 max

3

2
13.0 ± 0.20

Pin #1 indicator

3.8
typ

2

3

3

4
10.00

13.00

CMT2 Series
FRONT VIEW

RECOMMENDED PCB LAYOUT

SIDE VIEW

BOTTOM VIEW

SCHEMATIC

CMT2 wwll yy R

36.5 max

3.00 dia ± 0.13
1.2 dia

4

1

2
15.0
± 0.20

44.5 max

3.2

2

3

3

21.0 ±0.2

3

Pin #1 indicator

21.0 ± 0.20

4

15.0
±0.2

2

4

3

2

4

26.5 max

component side

1
4.0
± 1.0

1

3

CMT3 Series
TOP VIEW

5
typ

Pin #1 Indicator

1

2

RECOMMENDED PCB LAYOUT

BOTTOM VIEW

SIDE VIEW

z dia

15.0
±0.20

15.0
±0.20

25.0 max Dia

15.0
± 0.20

3

4
ØDia

3

1

CMT3-1
CMT3-2
CMT3-3
CMT3-4
CMT3-5
CMT3-6

component side

3
4

2

3

4

2

1

y dia

2

"Y" Dia
ref
0.58
0.64
0.71
0.80
0.89
0.99

"Z" Dia ref
0.83
0.90
0.97
1.06
1.15
1.25

15.0 ± 0.20

14 max

CMT4 Series
FRONT VIEW

BOTTOM VIEW

SIDE VIEW

RECOMMENDED PCB LAYOUT

15.4 max

z dia

25.0 max

1

y dia

4

12.00

4

1

3

2

component side

11.00

2

3

"Y" Dia
ref
0.58
0.64
0.71
0.80
0.89
0.99

"Z" Dia ref
0.83
0.90
0.97
1.06
1.15
1.25

5.0 typ

12.0 ± 0.20

4

1
Pin #1 indicator

1

2
(1) All Dimensions are in millimeters unless otherwise
specified
(2) Tolerances are +/- 0.20mm unless stated otherwise.
(3) wwllyy = (Date Code) R = (Revision Level)
Schematic is the same for all the series

COMMON-MODE (CMT)

CMT4-x
wwllyy - R

25.5 max

11.0
± 0.20

CMT4-1
CMT4-2
CMT4-3
CMT4-4
CMT4-5
CMT4-6

PM-183

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

CMT-SERIES
Common Mode Inductors
(Through-Hole)
Attenuation Curves

Attenuation
0

-6 -7 -8 -9

CMT1

Series

-10

-10

dB

-20
-30
-40
-50
-60
-1 -2 -3

-70
0.06

0.1

-4 -5
0.2

0.6

1

2

4

dB

FREQUENCY (MHz)

-20
-25
-30
-35
-40
-45
-50
-55
-60
-65
-70

Attenuation

CMT2 Series

-6

-10

-7 -8

-9

-1 -2 -3 -4 -5

0.08

0.1

0.15

0.2

0.3

0.4

0.5

0.6

0.7

0.8

FREQUENCY (MHz)

Attenuation CMT3 & CMT4 Common Mode
-10
-15
-5

-20

-6

COMMON-MODE (CMT)

dB

-25
-30
-3

-35

-4

-40
-45
-50
0.06

-1
0.1

-2
0.2

0.4

0.6

0.8

1

2

4

6

FREQUENCY (MHz)

PM-184

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

CMT-SERIES
Common Mode Inductors
(Through-Hole)
Impedance Curves
Impedance

CMT1 - 1 thru - 5

Impedance

100

20

-1

90

-2

18

80

-3

60

Z (K Ohm)

Z (K Ohm)

70
50
40
30
20

16

-6

14

-7

-10

12

-8

10
8

-9

6
4

-4

10

-5

2
0

0
0.05

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.05

0.9

0.2

0.4

FREQUENCY (MHz)

Impedance

Impedance

CMT2 - 1 thru - 5

-1

1

1.4

CMT2 - 6 thru -10

-6

-2

-3

-7

20

-4

-8

80

Z (K Ohm)

Z (K Ohm)

0.8

25

100

-5
60
40

15
10

20

5

0

0

-9

0.1

0.2

0.3

0.4

0.5

0.6

0.7

-10

0.05 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

FREQUENCY (MHz)

1

1.2 1.4 1.6

FREQUENCY (MHz)

Impedance CMT3 & CMT4

Impedance CMT3 & CMT4

25

3.5

-1

-3

20

3

-4 -5

-6

2.5

-2
15

Z (K Ohm)

Z (K Ohm)

0.6

FREQUENCY (MHz)

120

0.05

CMT1 - 6 thru -10

10

2
1.5
1

5
0.5
0
0.06

0
0.1

0.2

0.4

0.6

FREQUENCY (MHz)

0.8

1

2

0.06

0.1

0.2

0.4

0.6

0.8

1

2

4

FREQUENCY (MHz)

COMMON-MODE (CMT)

PM-185

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

TOROID (CS)

CS Series
Current Sense
Current Sense Inductors
Description
RoHS
2002/95/EC
• Encapsulated Through Hole Design
• Isolation between Pri and Sec of 3750 Volts
• Materials meet UL Class B
Applications
• Feedback elements linking the output and pulse control
circuitry
• Switch Mode Power Supplies: PFC, Half-bridge,
Full-bridge, Forward
• Off-Line
• Telecom

Part
Number
CS-1050-R
CS-1100-R
CS-1200-R

Inductance
(mH)

Turns +/-1%

Current Range
AMPS

DCR (Ω) +/-15%
@ 20°C

5.6
22.4
89.7

50
100
200

1-10
2-20
4-40

0.60
1.3
3.3

Recommended
Terminating
Resistor
50 ohms
100 ohms
200 ohms

Frequency
Range
20k-200kHz
20k-200kHz
20k-100kHz

4) Hipot is 3750 Volts from winding to test wire A-B
5) Materials meet UL Class B
6) Polarity Indicator Dot: (This lead is in phase with lead A of conductor A-B)

1) Test Parameters: 10kHz, 0.25 Vrms
2) Dimensions in Millimeters
3) Output Voltage is 1v/A with the terminating resistor and is linear over the specified range

Mechanical Diagrams
17.15
9.53
A

2

B

B

A

20.32

1

4.57Dia
11.74

CS-xxx

wwllyy R

6.35

0.81

1

2
12.70

4.77

xxx = Inductance value
wwllyy = Date code R = Revision level

PM-186

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Description
RoHS
2002/95/EC
• Low loss, powdered iron cores with stable
electrical operating characteristics maximize
inductor efficiency by minimizing copper losses
• Available in vertical and horizontal self leaded and header mounted configurations
• Inductance values range from 10uH to 1000uH
• Current values range from 1.5 to 29.5 Amps
• Meets UL 94V-0 flammability standard
• Powder Iron core material
Applications
• Filters
• Buck and boost switches
• Chokes
Environmental Data
• Storage temperature range: -40°C to +105°C
• Operating ambient temperature range: -40°C to +75°C
(range is application specific)

TOROID (LCPI)

LOW COST POWER INDUCTORS
Toroidal Inductors

Packaging
• Supplied in bulk packaging

Family Table
Vertical
Part Number
CTX10-1-52-R
CTX20-1-52-R
CTX50-1-52-R
CTX100-1-52-R
CTX150-1-52-R
CTX250-1-52-R
CTX500-1-52-R
CTX750-1-52-R
CTX1000-1-52-R
CTX10-2-52-R
CTX20-2-52-R
CTX50-2-52-R
CTX100-2-52-R
CTX150-2-52-R
CTX250-2-52-R
CTX500-2-52-R
CTX750-2-52-R
CTX10-5-52-R
CTX20-5-52-R
CTX50-5-52-R
CTX100-5-52-R
CTX150-5-52-R
CTX250-5-52-R
CTX10-7-52-R
CTX20-7-52-R
CTX50-7-52-R
CTX100-7-52-R
CTX150-7-52-R
CTX10-10-52-R
CTX20-10-52-R
CTX50-10-52-R
CTX100-10-52-R
CTX10-16-52-R
CTX20-16-52-R
Notes:

Horizontal
Part Number
CTX10-1-52LP-R
CTX20-1-52LP-R
CTX50-1-52LP-R
CTX100-1-52LP-R
CTX150-1-52LP-R
CTX250-1-52LP-R
CTX500-1-52LP-R
CTX750-1-52LP-R
CTX1000-1-52LPR
CTX10-2-52LP-R
CTX20-2-52LP-R
CTX50-2-52LP-R
CTX100-2-52LP-R
CTX150-2-52LP-R
CTX250-2-52LP-R
CTX500-2-52LP-R
CTX750-2-52LP-R
CTX10-5-52LP-R
CTX20-5-52LP-R
CTX50-5-52LP-R
CTX100-5-52LP-R
CTX150-5-52LP-R
CTX250-5-52LP-R
CTX10-7-52LP-R
CTX20-7-52LP-R
CTX50-7-52LP-R
CTX100-7-52LP-R
CTX150-7-52LP-R
CTX10-10-52LP-R
CTX20-10-52LP-R
CTX50-10-52LP-R
CTX100-10-52LPR
CTX10-16-52LP-R
CTX20-16-52LP-R

Header Mounted
Inductance
Part Number
μH (rated)
CTX10-1-52M-R
10
CTX20-1-52M-R
20
CTX50-1-52M-R
50
CTX100-1-52M-R
100
CTX150-1-52M-R
150
CTX250-1-52M-R
250
CTX500-1-52M-R
500
CTX750-1-52M-R
750
CTX1000-1-52M-R
1000
CTX10-2-52M-R
10
CTX20-2-52M-R
20
CTX50-2-52M-R
50
CTX100-2-52M-R
100
CTX150-2-52M-R
150
CTX250-2-52M-R
250
CTX500-2-52M-R
500
CTX750-2-52M-R
750
CTX10-5-52M-R
10
CTX20-5-52M-R
20
CTX50-5-52M-R
50
CTX100-5-52M-R
100
CTX150-5-52M-R
150
250
CTX10-7-52M-R
10
CTX20-7-52M-R
20
CTX50-7-52M-R
50
100
150
10
20
50
100
10
20

OCL(1)
μH +/- 20%
10.14
20.22
50.29
100.40
151.70
250.90
505.00
754.40
1004.00
9.60
19.60
50.00
101.70
148.00
251.10
499.40
749.30
9.68
21.25
49.60
97.20
150.60
254.40
10.04
20.96
52.27
101.40
152.80
10.04
21.17
52.37
99.38
9.90
19.24

I DC(2)
Amperes
2.4
1.8
2.6
2.5
2.1
1.9
1.7
1.8
1.5
4.7
3.2
4.9
4.4
4.3
4.2
3.1
3.4
8.7
7.8
7.6
8.2
7.7
9.2
11.4
11.4
10.5
12.0
12.8
16.9
16.0
13.9
17.6
27.3
31.5

I SAT(3)
Amperes
2.1
2.2
2.7
2.4
2.3
2.2
1.9
2.4
2.1
4.5
3.2
4.9
4.3
4.0
4.2
3.3
3.4
11.1
9.3
9.4
7.5
7.5
8.1
13.5
14.5
10.2
9.1
10.5
20.9
16.0
12.7
13.0
29.3
29.5

Volt-μSec(4)
VμS
5.4
7.8
16.3
27.5
35.7
47.8
77.9
114.3
131.9
6.6
9.4
21.3
35.0
47.6
66.0
104.0
147.3
9.4
16.0
29.3
45.7
66.0
102.4
11.0
19.1
33.5
54.2
79.3
13.2
21.3
38.9
64.0
16.9
28.1

Energy(5)
μJ
15
36
130
197
283
421
645
1530
1530
68
69
420
643
829
1540
1890
2960
417
643
1530
1890
2960
5860
640
1540
1900
2960
5900
1530
1900
2960
5880
2970
5860

DCR (Ω)(6)
max
0.0481
0.0829
0.0715
0.1060
0.1620
0.2210
0.3610
0.4340
0.6380
0.0183
0.0392
0.0326
0.0534
0.0719
0.0833
0.1830
0.2080
0.0104
0.0260
0.0248
0.0267
0.0401
0.0400
0.0080
0.0110
0.0163
0.0167
0.0204
0.0051
0.0070
0.0124
0.0109
0.0032
0.0034

(1) Open circuit inductance test parameters: 100kHz, 0.250Vrms, 0 Adc.
(2) DC current for an approximate ΔT of 30°C at 75°C Ambient with no core loss. See Chart 2 for derating of IDC with core loss.
(3) Peak current for an approximate 30% roll-off in OCL. For other current levels see Chart 1.
(4) Applied Volt-Time product (VμS) across the inductor. This value represents the VμS at 100kHz necessary to generate a core loss equal to 10% of the total
losses for 30°C rise. For other frequencies and operating levels see Chart 2. (Note: skin effect losses not included.)
(5) Energy storage (μJ) at ISAT. For other current levels see Chart 1.
(6) Maximum D.C. resistance at 20°C.

PM-187

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

TOROID (LCPI)

LOW COST POWER INDUCTORS
Toroidal Inductors
Mechanical Diagrams
Vertical and Horizontal Self Leaded Mounting Options
Vertical P/N
See Figure 1
CTX10-1-52-R
CTX20-1-52-R
CTX50-1-52-R
CTX100-1-52-R
CTX150-1-52-R
CTX250-1-52-R
CTX500-1-52-R
CTX750-1-52-R
CTX1000-1-52-R
CTX10-2-52-R
CTX20-2-52-R
CTX50-2-52-R
CTX100-2-52-R
CTX150-2-52-R
CTX250-2-52-R
CTX500-2-52-R
CTX750-2-52-R
CTX10-5-52-R
CTX20-5-52-R
CTX50-5-52-R
CTX100-5-52-R
CTX150-5-52-R
CTX250-5-52-R
CTX10-7-52-R
CTX20-7-52-R
CTX50-7-52-R
CTX100-7-52-R
CTX150-7-52-R
CTX10-10-52-R
CTX20-10-52-R
CTX50-10-52-R
CTX100-10-52-R
CTX10-16-52-R
CTX20-16-52-R

Horizontal P/N
See Figure 2
CTX10-1-52LP-R
CTX20-1-52LP-R
CTX50-1-52LP-R
CTX100-1-52LP-R
CTX150-1-52LP-R
CTX250-1-52LP-R
CTX500-1-52LP-R
CTX750-1-52LP-R
CTX1000-1-52LP-R
CTX10-2-52LP-R
CTX20-2-52LP-R
CTX50-2-52LP-R
CTX100-2-52LP-R
CTX150-2-52LP-R
CTX250-2-52LP-R
CTX500-2-52LP-R
CTX750-2-52LP-R
CTX10-5-52LP-R
CTX20-5-52LP-R
CTX50-5-52LP-R
CTX100-5-52LP-R
CTX150-5-52LP-R
CTX250-5-52LP-R
CTX10-7-52LP-R
CTX20-7-52LP-R
CTX50-7-52LP-R
CTX100-7-52LP-R
CTX150-7-52LP-R
CTX10-10-52LP-R
CTX20-10-52LP-R
CTX50-10-52LP-R
CTX100-10-52LP-R
CTX10-16-52LP-R
CTX20-16-52LP-R

OD
(max)
8.6
9.1
16.2
15.5
20.7
20.9
24.0
29.8
29.8
12.7
12.5
21.6
24.0
30.6
31.2
36.7
43.3
22.2
24.5
32.3
37.8
46.4
53.7
25.7
32.4
39.0
48.5
54.5
34.0
40.5
47.5
57.0
50.3
59.0

ID
(typ)
0.0
0.0
4.2
4.2
6.6
6.0
9.0
11.7
11.7
0.0
0.0
6.1
8.8
11.2
9.1
11.7
19.9
5.4
8.8
10.1
11.2
18.8
18.8
6.5
8.5
10.8
17.1
17.1
7.0
9.0
17.1
15.0
13.0
13.0

Ht
(max)
4.7
6.7
9.0
12.4
9.4
13.0
15.3
17.4
17.1
7.8
7.5
13.6
16.6
11.4
19.0
14.8
18.2
13.9
16.6
18.9
16.8
19.8
24.3
18.0
19.8
16.8
21.8
25.4
21.4
18.0
21.3
27.5
24.0
28.0

X
(typ)
3.8
5.6
7.5
10.7
7.8
11.0
14.0
15.6
15.5
6.3
6.3
11.0
13.9
9.3
15.7
12.5
15.8
11.5
14.5
16.5
13.6
16.8
20.1
16.0
16.8
13.9
17.2
21.2
17.0
14.3
17.5
21.3
18.6
23.0

Y
(typ)
7.3
7.4
13.7
13.7
18.8
18.8
21.2
28.2
28.0
11.0
11.0
19.5
21.8
28.5
28.5
34.5
41.5
19.9
22.0
28.8
35.5
43.4
49.4
22.4
29.2
35.7
43.4
50.9
29.6
35.2
42.8
50.6
43.0
50.7

T
(typ)
0.42
0.37
0.58
0.58
0.52
0.52
0.52
0.52
0.46
0.71
0.58
0.89
0.89
0.80
0.89
0.71
0.80
1.11
0.89
1.11
1.24
1.24
1.38
1.38
1.38
1.38
1.73
1.73
1.73
1.73
1.73
2.15
2.41
2.69

H
(typ)
0.67
0.62
0.83
0.83
0.77
0.77
0.77
0.77
0.71
0.96
0.83
1.14
1.14
1.05
1.14
0.96
1.05
1.36
1.14
1.36
1.49
1.49
1.63
1.63
1.63
1.63
1.98
1.98
1.98
1.98
1.98
2.45
2.70
2.99

Note: All dimensions are in millimeters.

FIGURE 2

FIGURE 1
OD

ID

ID

OD

10.0 +/- 3
T dia.

Ht

Ht
10.0 +/- 3

VERTICAL
SELF LEADED
MOUNT

HORIZONTAL
SELF LEADED
MOUNT

T dia.
(typ.)
H dia
(typ.)

X
H dia.
(typ.)

Y

Drawings are not to scale.

PM-188

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

TOROID (LCPI)

LOW COST POWER INDUCTORS
Toroidal Inductors

Header Mounted Option
Header Mounted
Part Number
CTX10-1-52M-R
CTX20-1-52M-R
CTX50-1-52M-R
CTX100-1-52M-R
CTX150-1-52M-R
CTX250-1-52M-R
CTX500-1-52M-R
CTX750-1-52M-R
CTX1000-1-52M-R
CTX10-2-52M-R
CTX20-2-52M-R
CTX50-2-52M-R
CTX100-2-52M-R
CTX150-2-52M-R
CTX250-2-52M-R
CTX500-2-52M-R
CTX750-2-52M-R
CTX10-5-52M-R
CTX20-5-52M-R
CTX50-5-52M-R
CTX100-5-52M-R
CTX150-5-52M-R
CTX10-7-52M-R
CTX20-7-52M-R
CTX50-7-52M-R

See
Figure #
3
3
4
4
4
5
5
5
5
3
3
5
5
5
5
5
5
5
5
5
5
5
5
5
5

OD
(max)
8.6
9.1
16.2
15.5
20.7
20.9
24.0
29.8
29.8
12.7
12.5
21.6
24.0
30.6
31.2
36.7
43.3
22.2
24.5
32.3
37.8
46.4
25.7
32.4
39.0

A
(max)
9.4
9.4
19.6
19.6
19.6
31.0
35.4
35.4
35.4
13.6
13.6
31.0
35.4
31.0
35.4
31.0
35.4
31.0
35.4
35.4
35.4
35.4
35.4
35.4
35.4

B
(max)
9.4
9.4
16.1
16.1
16.1
16.0
21.7
21.7
21.7
11.4
11.4
16.0
21.7
16.0
21.7
16.0
21.7
16.0
21.7
21.7
21.7
21.7
21.7
21.7
21.7

C
(max)
6.9
9.0
20.0
19.7
24.2
22.5
25.0
31.6
31.2
11.7
11.4
23.5
26.0
32.5
33.4
38.4
45.4
22.7
25.5
33.7
40.2
47.0
26.7
34.2
40.3

X
(typ)
6.5
6.5
15.3
15.3
15.3
20.3
23.0
23.0
23.0
10.8
10.8
20.3
23.0
20.3
23.0
20.3
23.0
20.3
23.0
23.0
23.0
23.0
23.0
23.0
23.0

Y
(typ)
6.5
6.5
6.4
6.4
6.4
10.2
15.4
15.4
15.4
7.5
7.5
10.2
15.4
10.2
15.4
10.2
15.4
10.2
15.4
15.4
15.4
15.4
15.4
15.4
15.4

T
(typ)
—
—
—
—
—
1.20
1.20
1.20
1.20
—
—
1.20
1.20
1.20
1.20
1.20
1.20
1.20
1.20
1.11
1.24
1.24
1.38
1.38
1.38

H
(typ)
—
—
—
—
—
1.45
1.45
1.45
1.45
—
—
1.45
1.45
1.45
1.45
1.45
1.45
1.45
1.45
1.36
1.49
1.49
1.63
1.63
1.63

Note: All dimensions are in millimeters.

FIGURE 3

CONNECTION DIAGRAM

FIGURE 4

A

FIGURE 5
OD

OD

2

3

1
B

C

1

C

4

3

4.25+/- 1.5

4.0
0+
+/-- 1
1.00 dia.
ia.
(typ.)
C
3.8
3.
8 +/+ 1
0.50 dia.
ia.
(typ.)

A

A
1

4
B

2

0.70dia. (typ.)
2

3

1

4

2

3
Pinss 1 & 3:
3 T dia.
ia.
Pinss 2 & 4:
4 1.2
1.20 dia.
ia.

3

Y

1.25dia. (typ.)
2

3

1

4

2

Holess 1 & 3:
3 H dia.
Holess 2 & 4:
4 1.45 dia. 3
Y

Y
4

1

HEADER MOUNT

X

X

B

4

1
X

Drawings are not to scale.

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Inductance Characteristics

1000
800
600
500
400
300

% of OCL or % of Energy

200

100
80
60
50
40
30
20

10
0

50

100

150

200

250

300

% OF I SAT
Energy

Inductance

Core Loss
0
20
40
50
60
70

z

z

kH
20

kH
z

kH
50

100

200

90

kH

kH

z

z

80

500

% of Losses from Irms (maximum)

92
94
95
96
97
98

800

1000

500
600

400

300

200

100

80

40
50
60

30

20

99
10

TOROID (LCPI)

LOW COST POWER INDUCTORS
Toroidal Inductors

% of applied Volt-μ Seconds

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Application Notes
Magnetics
Recommended Solder Reflow Profiles
Standard SnPb Solder
3°C/Second Max.

Lead (Pb) Free Solder
3°C/Second Max.

100°C
150°C
60-120seconds

150°C
200°C
60-120seconds
3°C/Second Max.

183°C
60-150 Seconds
235°C +/-5°C
30 Seconds Max
6°C/ Second Max.
6 Minutes Max

217°C
60-150 Seconds
255°C +/-5°C
10 Seconds Max
6°C/ Second Max.
8 Minutes Max

APPLICATION NOTES

Profile Feature
Average Ramp-Up Rate (TL to TP)
Preheat
Temperature Min. (TSmin)
Temperature Max. (TSmax)
Time (Min to Max) (ts)
Tsmax to TL
Ramp-Up Rate
Time Maintained Above:
Temperature (TL)
Time (tL)
Peak Temperature (TP)
Time Within 5°C of Actual Peak Temperature (tP)
Ramp Down Rate
Time 25°C to Peak Temperature

All temperatures refer to the topside of the package, measured on the package body surface
Reference JEDEC J-STD-020B
tP
TP
Critical Zone
TL to TL

TL
IL
TS
max

Temperature

TS
min

25°C

ts
Preheat

t 25°C to peak

..
Time

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Application Notes
Magnetics

The Versa-Pac range of transformers is one of the many
products manufactured under the Cooper Coiltronics®
brand of power magnetics from Cooper Bussmann.
Versa-Pac is available in five sizes and is suitable for
flyback circuits with power levels up to 35W and a maximum switching frequencies of 500kHz. The VP series
was designed, primarily, for low voltage applications
typically 3.3V, 5V and 12V. With the addition of the VPH
products to the range the Versa-Pac can now be used
for 24V, 48V and, at higher frequencies, even 120V
applications. Each transformer has six identical windings
that can be configured in series and parallel to produce
the required transformer design, the isolation between
these windings is 500Vdc. Full product data is available
on our website: www.cooperbussmann.com

If the output power requirement can’t be met then the
Versa-Pac is unable to offer a flyback transformer solution. It may be worth considering a Push-Pull topology, as
this will give better transformer utilization allowing high
output power levels for the same transformer size.

Design Procedure

5/48 = Nsec/Npri x 0.5/(1-0.5)
Npri/Nsec = (48x1)/5 = 9.6
Rounding down, Npri/Nsec = 5 (max ratio)

In order to design a flyback transformer using the VersaPac the following information is required: nominal, minimum and maximum input voltages (Vin(nom), Vin(min) &
Vin(max)), output voltage (Vo), output current (Io) and
switching frequency (Fs).
For the purpose of our example let’s take the following
values:

Using the graph for Unipolar (Flyback) Power v
Frequency from the data sheet select the required VersaPac size by reading off your required output power and
operating frequency.

Unipolar (Flyback) Power vs Frequency
35.0

VP 5

20.0

VP 4
15.0

VP 3
VP 2

5.0
0.0
100

(1)

Where Nsec is the number of secondary windings and
Npri is the number of primary windings, Npri/Nsec is the
turns ratio which must be rounded to the nearest achievable value (i.e. 0.5, 0.667, 1, 1.5, 2, 3 etc).

Vin(nom) and 0.5 duty cycle are used only as a starting
point, it is possible that using Vin(min) with lower or high
duty cycles you may achieve a more suitable turns ratio.

5/56 = (1/5) x D/(1-D)
0.446-0.446D = D
D = 0.446/1.446 = 0.309
Calculate the primary volt-seconds product using the following equation:

(2)

This value should be less than the rated primary Voltμsec, if the primary uses one winding the rated Volt-μsec
is the same as Volt-μsec(Base). If the primary is two
windings in series then the rating is then 2 x Voltμsec(Base) and for 3 series windings 3 x Volt-μsec(Base)
etc. If the Volt-μsec rating can not be achieved using the
selected Versa-Pac size then you will need to select a
larger size or increase the switching frequency.

25.0

10.0

Vo/Vin(nom) = Nsec/Npri x (D/1-D)

Primary Vs = D x Ts x Vin(max)
Where Ts = 1/Fs

40.0

30.0

Calculate the turns ratio for a duty cycle (D) of 0.5 using
the equation;

Calculate the actual duty cycle for Vin(max) using equation 1 and the calculated turns ratio rounded up or down
to the nearest achievable value.

Vo = 5V, Io = 1A, Vin(min) = 40V, Vin(nom)=48V ,
Vin(max) = 56V and Fs = 200kHz

Watts

APPLICATION NOTES

Using the Versa-Pac as a Flyback Transformer

VP 1
200

300

400

500

Frequency, kHz

At 200kHz and 5W this gives a VP3 size.
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Application Notes
Magnetics
Primary Vs = 0.309 x 1/200x103 x 56 = 86.52Vμsec

Ipri(avg-pk) = (Ipri(peak) + (Ipri(peak) - ΔIpri))/2

(6)

The VP3 has a Volt-μsec(Base) of 27.7Vμsec, multiplying this by 5 gives a rating of 138.5Vμsec. So the VP3
size meets the volt-seconds requirements.

Ipri(rms) = (D(max) x (Ipri(avg-pk))2)0.5

(7)

If the required volt-seconds rating can’t be achieved you
can reduce the required rating by increasing the switching
frequency. Alternatively you can recalculate the turns ratio
using Vin(min) as this may increase the number of series
primary windings.

Ipri(peak) = 0.2 x 1/(1-0.385) + (40 x 5x10-6 x 0.385)/
(2 x 52 x 63.2x10-6) = 0.35A
Peak current is higher than the Isat rating for the
VP3-0780, which is equal to 6/5 x Isat(base). So moving up to the VP3-0138, we once again find that conduction is mainly continuous mode and so peak primary current:
Ipri(peak) = 0.2 x 1/(1-0.385) + (40 x 5x10-6 x 0.385)/
(2 x 52 x 11.2x10-6) = 0.462A

Io (boundary) = Ts x Vo x (1-D(max)) /(2 x Ls) (3)

ΔIpri = (40 x 0.385 x 5x10-6)/(52 x 11.2x10-6) = 0.275A
Ipri(avg-pk) = (0.462 + (0.462 – 0.275))/2 = 0.325A
Ipri(rms) = (0.385 x 0.3252)0.5 = 0.202A

2

Where Ls is the secondary inductance and Dmax is the
duty cycle at Vin(min).
Selecting the VP3-0780:
D(max) = 0.625/1.625 = 0.385
Ls = 63.2μH
Io (boundary) = 5x10-6 x 5 x (1-0.385)2/
(2 x 63.2x10-6) = 0.075A

APPLICATION NOTES

Starting with the highest inductance value for the selected
VP size, calculate the output current at which current conduction is at the boundary between continuous and discontinuous.

For the VP3-0138 the Irms rating is 1.47A and the
Isat(base) is 0.59A both of which are sufficiently high
to meet the primary current requirements.
For discontinuous mode conduction:
First we need to calculate the average primary current:

As the boundary current is less than the maximum
output current the transformer is operating in continuous mode.

Ipri(avg)= (Vo x Io)/(Vin(min) x Efficiency)

(8)

Ipri(peak) = (2 x Ipri(avg))/D(max)

(9)

Calculating the peak and rms primary currents we can
determine if the selected Versa-Pac meets the specified
requirements.

Ipri(rms) = ((Ipri(peak)2 x D(max))/3)0.5

(10)

You can now check these results against the Isat and
Irms ratings, bearing in mine that the actual Isat rating:

For Continuous mode conduction:
= (6 x Isat(base))/Number of windings driven

(11)

Peak Primary Current:
Ipri(peak) = Nsec/Npri x (1/1-D(max))
x Io + (Vin(min) x Ts x D(max))/2 x Lpri

(4)

The number of windings driven for a flyback transformer
is the number of series windings used to make up the primary. So for two series primary windings the rated Isat is
actually 3 times Isat(base).

Where Lpri is the primary inductance.
Finally, calculate the maximum rms secondary current,
In order to calculate the rms primary current you first
need to calculate the primary current delta and average
peak.

For continuous mode:
Isec(rms) = ((1-D(max)) x (Io/(1-D(max)))2)0.5

ΔIpri = (Vin(min) x D(max) x Ts)/Lpri

(12)

(5)

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Application Notes
Magnetics
For discontinuous mode:
Isec(rms) = ((1-D(max))/3 x (Isec(peak))2)0.5

(13)

Where, referring to equation 9:
Isec(peak) = Ipri(peak) x Npri/Nsec

Split +/-12V Supply
Using a secondary center tap allows the winding to be
configured for positive and negative outputs. Extra windings are paralleled with the primary and secondary windings in order handle more current and reduce losses.

(14)

Isec(rms) = ((1-0.385) x (1/(1-0.385))2)0.5 = 1.275A

APPLICATION NOTES

The VP3-0138 has an Irms(base) rating of 1.47A
Examples:
SLIC Power Supply
By connecting three secondary windings in series much
higher output voltages can be achieve, in this example
each secondary winding has a -24V output therefore providing the -48V and -72V supplies required in SLIC applications.

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Application Notes
Magnetics
Using the Versa-Pac as a Forward Converter Transformer
Although the data used in the Power v. Frequency curve
was derived using a flyback topology, as a guide to
Versa-Pac size requirements, it still holds true for unipolar
forward converters.
Calculate the turns ratio for a duty cycle (D) of 0.25 using
the equation;
Vo/Vin(nom) = D x Nsec/Npri

(1)

Where Nsec is the number of secondary windings and
Npri is the number of primary windings, Npri/Nsec is the
turns ratio which must be rounded to the nearest achievable value (i.e. 0.5, 0.667, 1, 1.5, 2, 3 etc).

Single Ended Forward Converter Design Procedure

3.3/48 = Nsec/Npri x (0.25)
Npri/Nsec = (48x0.25)/3.3 = 3.6
Rounding down, Npri/Nsec = 3

In order to design a forward converter transformer using
the Versa-Pac the following information is required: nominal, minimum and maximum input voltages (Vin(nom),
Vin(min) & Vin(max)), output voltage (Vo), output current
(Io) and switching frequency (Fs).

Vin(nom) and 0.25 duty cycle are used only as a starting
point, it is possible that using Vin(min) with lower or high
duty cycles you may achieve a more suitable turns ratio.
Note: Maximum duty cycle for most unipolar forward converters is 0.5.

For the purpose of our example let’s take the following
values:

Calculate the maximum duty cycle for Vin(min) using
equation 1 and the calculated turns ratio rounded up or
down to the nearest achievable value.

Vo = 3.3V, Io = 5A, Vin(min) = 40V, Vin(nom)=48V ,
Vin(max) = 56V and Fs = 250kHz
Using the graph for unipolar (Flyback) Power v Frequency
from the data sheet select the required Versa-Pac size by
reading off your required output power and operating frequency.

Unipolar (Flyback) Power vs Frequency

3.3/40 = 1/3 x (D)
(3.3 x 3)/40 = D
D(max) = 0.2475
Calculate the primary volt-seconds product using the following equation:
Primary Vs = D(max) x Ts x Vin(min)
Where Ts = 1/Fs

40.0

APPLICATION NOTES

The Versa-Pac range of transformers is one of the many
products manufactured under the Cooper Coiltronics®
brand of power magnetics from Cooper Bussmann.
Versa-Pac is available in five sizes and is suitable for a
maximum switching frequency of 500kHz and power
levels up to 30W, for single ended topologies, or 60W for
bipolar applications. The VP series was designed,
primarily, for low voltage applications typically 3.3V, 5V
and 12V. With the addition of the VPH products to the
range the Versa-Pac can now be used for 24V, 48V and,
at higher frequencies, even 120V applications. Each
transformer has six identical windings that can be
configured in series and parallel to produce the required
transformer design, the isolation between these windings
is 500Vdc. Full product data is available on our website:
www.cooperbussmann.com

(2)

35.0
30.0

This value should be less than the rated primary Voltμsec, if the primary uses one winding the rated Volt-μsec
is the same as Volt-μsec(Base). If the primary is two
windings in series then the rating is then 2 x Voltμsec(Base) and for 3 series windings 3 x Volt-μsec(Base)
etc. If the Volt-μsec rating can not be achieved using the
selected Versa-Pac size then you will need to select a
larger size or increase the switching frequency.

VP 5

Watts

25.0
20.0

VP 4
15.0

VP 3

10.0

VP 2
5.0
0.0
100

VP 1
200

300

400

Frequency, kHz

500

Primary Vs = 0.2475 x 1/250x103 x 40 = 39.6Vμsec

At 250kHz and 16.5W this gives a VP5 size.
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Application Notes
Magnetics
The VP5 has a Volt-μsec(Base) of 65.6Vμsec, multiplying this by 3 gives a rating of 196.8Vμsec. So the VP5
easily meets the volt-seconds requirements.

APPLICATION NOTES

If the required volt-seconds rating can’t be achieved you
can reduce the required rating by increasing the switching
frequency. Alternatively you can recalculate the turns ratio
using Vin(max) or a high duty cycle as this may increase
the number of series primary windings.
Starting with the highest inductance value for the selected
VP, calculating the rms primary currents we can determine if the selected Versa-Pac meets the specified
requirements.
In order to calculate the rms primary current you first
need to calculate the peak current.
Ipri(peak) = Nsec/Npri x (Io + ΔIo/2) + Imag(peak) (3)
Where:
Imag(peak) = (Vin(min) x Ts x D(max))/Lpri

(4)

Primary rms current:
Ipri(rms) = (D(max) x (Ipri(avg-pk))2)0.5

(5)

Where:
Ipri(avg-pk) = (Ipri(peak) + (Ipri(peak) Imag(peak)))/2

(6)

Isec(peak) = 1.81 x 3 = 5.43A
Isec(rms) = (0.248 x ((5 + 5.43)/2)2)0.5 = 2.6A
The rms current rating, Irms(base), for the VP5-1200
is 2.08A. In order to achieve the required rms current
rating at least two parallel windings must be used to
make up the secondary. For improved efficiency it
would be normal practice to use both the spare windings and have a secondary made up of three parallel
windings.
Transformer Reset
In a practical single ended forward converter design you
need to consider how transformer reset is going to be
achieved. During the switch ‘ON’ period current proportional to the output current plus the magnetizing current
flow in the primary winding, the magnetizing current must
be reset to zero during the switch ‘OFF’ period in order to
prevent converter failure. This can be achieved in a
number of ways, figure 1 shows a method that uses an
auxiliary primary winding connected in anti-phase to the
main primary. This additional winding acts in flyback
mode during the switch ‘OFF’ period recovering the
magnetizing energy in to the supply rail.

Assuming ΔIo is set to 10% of Io max, which is achieved
by selection of the correct output inductor value (see
application note EUA001). Using a VP5-1200, the L(base)
is 76.8μH therefore:
Imag(peak) = (40 x 1/250x103 x 0.248)/
32 x 76.8 x10-6= 0.0574A
Ipri(peak) = 1/3 x (5 + (0.5/2) + 0.0574 = 1.81A
Ipri(avg-pk) = (1.81 + (1.81 – 0.0574))/2 = 1.78A
Ipri(rms) = (0.248 x 1.782)0.5 = 0.89A

Figure 1

The rms current rating, Irms(base), for the VP5-1200
is 2.08A
Finally, calculate the maximum rms secondary current,
Isec(rms) = (D(max) x (Io + Isec(peak)/2)2)0.5

(7)

For Versa-Pac designs this method limits the converter
maximum duty cycle to 50% and also reduces the number of possible configurations, as only 5 windings will be
available. Figure 2 shows a simple way of resetting the
transformer using an resistor-capacitor-diode (RCD) network which allows all 6 windings to be used when configuring the transformer.

Where, referring to equation 3:
Isec(peak) = Ipri(peak) x Npri/Nsec

(8)

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Application Notes
Magnetics

APPLICATION NOTES

Figure 2

Figure 3

Using an RCD reset network has a number of advantages, it reduces the voltage stress on the switch, it limits
turn off voltage spike and permits operation at greater
than 50% duty cycle. Figure 3 shows a reset method for a
dual switch topology, this method allows the primary
winding to operate in flyback mode with the current flowing through the two recovery diodes. This technique is
similar to that shown in figure 1, the advantages of this
topology include reduced voltage rating requirement for
the switches and no requirement for an auxiliary primary
winding.

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Application Notes
Magnetics
Power Inductors Improve Reliability in High Temperature Designs
First calculate the needed inductance value:
V = L * dI/dt where:
V = Vin - Vout (voltage across the inductor)
dT = On time of drive = Vout/Vin/frequency
ΔI = Chosen above to be 20%

APPLICATION NOTES

Calculate the required inductance:
L = V * dt / ΔI = (12-5)*(12/5/600k)/(0.2*4.5)
L= 4.8 μH
Choose 4.7 μH, the nearest standard value
Recalculate ripple current at 23% using 4.7 μH

Second determine peak to peak flux density, Bp-p:
Bp-p = K * L * ΔI where:
The Cooper Coiltronics® brand of High Current FP3™
power inductors from Cooper Bussmann is designed for
high density, medium current applications using a high
temperature iron powder core material. These inductors
do not exhibit the thermal aging issue frequently
associated with iron powder core inductors. In fact the
FP3 core is rated for 200°C without thermal degradation.
The FP3 family is rated for 155°C operation. The
calculations below will allow users to take advantage of
this high temperature capability.

5V
4.5A
12V
Input

K: K-factor from the adjacent table
L: Inductance μH
ΔI: Peak to peak ripple current (Amps)
Bp-p = 105*4.7*0.23*4.5 = 510 Gauss
Part Number
FP3-R10
FP3-R20
FP3-R47
FP3-R68
FP3-1R0
FP3-1R5
FP3-2R0
FP3-3R3
FP3-4R7
FP3-8R2
FP3-150

K-factor
803
482
344
268
219
185
161
127
105
78
59

PWM

In this example, a buck regulator will be used to convert
a 12V input to a 5V output with a load current of 4.5A.
The operating frequency was chosen to be 600 kHz to
reduce the size of the filter components, while still maintaining good efficiency. The converter is designed to
have 20% ripple current, so a relatively low ESR output
filter capacitor will be used, as is typical in switching
power supplies.

Next determine the total losses in the inductor:
Total losses = DC loss + AC loss
DC loss = I2 *DCR = 4.52 * 0.040 = 0.81 W
(DCR from FP3 datasheet)
AC loss from table at Bp-p of 510 = 0.15 W
Total Loss = DC loss + AC loss = 0.96W
Finally determine the temperature rise.
Total loss = 0.96W, using the table,
Temperature rise is 80°C
Assuming an ambient temperature of 70°C,
The temperature of the inductor is
T = 70 +75 = 150°C

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Application Notes
Magnetics
Note the data assumes no cooling airflow. Cooling will reduce the temperature of the inductor.
The FP3 is rated for 155°C operation.

FP3 AC Loss at Frequency, kHz
200
300
400
500
600
700

APPLICATION NOTES

CoreLoss (W)

CoreLoss vs. Flux Density
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
250

800
900
1000

500

750

1000 1250 1500 1750 2000 2250
B p-p (Gauss)

Temperature Rise (C)

Temperature Rise vs. Watt Loss
140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
0.12

0.24

0.36

0.48

0.61

0.73

0.85

0.97

1.09

1.21

1.33

1.45

1.57

Total Loss (W)

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Application Notes
Magnetics
Switching Regulator Inductor Design
In switching regulator applications the inductor is used as
an energy storage device, when the semiconductor
switch is on the current in the inductor ramps up and
energy is stored. When the switch turns off this energy is
released into the load, the amount of energy stored is
given by;

mise between inductor and capacitor size a ripple current
value of 10-30% of maximum inductor current should be
chosen. This also means that the current in the inductor
will be continuous for output currents greater that 5-15%
of full load.
Inductor Selection for Buck Converters

Energy = 1/2L.I2

(Joules)

(1)
When selecting an inductor for a Buck converter, as with
all switching regulators, you will need to define or calculate the following parameters:

APPLICATION NOTES

Where L is the inductance in Henrys and I is the peak
value of inductor current.
The amount by which the current changes during a
switching cycle is known as the ripple current and is
defined by the equation;
V1 = L.di/dt

• Maximum input voltage
• Output voltage
• Switching frequency
• Maximum ripple current
• Duty cycle

(2)

Where V1 is the voltage across the inductor, di is the ripple current and dt is the duration for which the voltage is
applied. From this we can see that the value of ripple current is dependent upon the value of inductance.
Choosing the correct value of inductance is important in
order to obtain acceptable inductor and output capacitor
sizes and sufficiently low output voltage ripple.
Buck Inductor
I load
dI
I Inductor

1

For the example shown in figure 2 lets assume a switching frequency of 250kHz, input voltage range of
12V±10% and a max ripple current of 220mA.
Switch

Input Voltage
12 V

Buck Inductor

Freewheeling
Diode

5V
Output
Voltage

Output
Cap

Vout

2

ESR

Figure 2

0

Figure 1
As can be seen from figure 1 inductor current is made up
of AC and DC components, because the AC component
is high frequency it will flow through the output capacitor
as it has a low HF impedance. This will produce a ripple
voltage due to the capacitor ‘equivalent series resistance’
(ESR) that will appear at the output of the switching regulator. This ripple voltage needs to be sufficiently low as
not to effect the operation of the circuit the regulator is
supplying, normally in the order of 10-500mVpk-pk.
Selecting the correct ripple current also impacts on the
size of inductor and output capacitor, the capacitor will
need to have a sufficiently high ripple current rating or it
will overheat and dry out. In order to get a good compro-

For an input voltage of 13.2V the duty cycle will be:
D = Vo/Vi = 5/13.2 = 0.379

(3)

Where Vo is the output voltage and Vi is the input voltage.
Voltage across the inductance:
V1 = Vi - Vo = 8.2V
V1 = - Vo
= -5V

when the switch is on
when the switch is off

(4)
(5)

Require inductance:
L = V1.dt/di = (8.2 x 0.379/250 x 103)/0.22
L = 56.5μH

(6)

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Application Notes
Magnetics
Inductor Selection for Boost Converters

Inductor Selection for Buck-Boost Converters
(including Cuk & SEPIC)

In order to calculate the require value of inductance for
a Boost converter we follow the same procedure as
described for the Buck converter, the difference being that
the equations for duty cycle and inductor voltage change.
Taking maximum input voltage as 5.5V, switching
frequency as 100kHz and maximum ripple current as
0.1A.
Diode

Boost Inductor

The procedure shown here is for the Cuk converter but it
applies equally well to the SEPIC and the single inductor
Buck-Boost topologies. Initially we will consider the circuit
utilizing two separate inductors of equal value and then
look at some of the advantages of using coupled inductors.
For this example we shall use a switching frequency of
200kHz and a maximum ripple current of 200mA.
-12V

Input Voltage
5V

Switch

Output
Cap

12V
Output
Voltage

Figure 3
Duty cycle:
D = 1 – (Vi/Vo) = 1 – (5.5/12) = 0.542
Inductor Voltage:
V1 = Vi = 5.5V
V1 = Vo – Vi = 6.5V

when the switch is on
when the switch is off

(7)

(8)
(9)

Using equation 6, inductance:
L = (5.5 x 0.542/100 x 103)/0.1
L = 298μH
One thing to note about the Boost converter topology is
that, unlike the Buck converter, inductor current does not
continuously flow to the load. During the switch ‘on’ period
the inductor current flows to ground and the load current
is supplied from the output capacitor. This means that the
output capacitor must have sufficient energy storage
capability and ripple current rating in order to supply the
load current during this period.

Input 5-18V

Coupling
Cap

Inductor 2
Output Output
Cap Voltage

Switch
Diode

Figure 4
Duty cycle:
D = Vo/(Vo + Vi) = 12/(12+18) = 0.4

(10)

Inductor voltages:
V1 = Vi = 18V
V1 = Vo = 12V

(11)
(12)

when the switch is on
when the switch is off

APPLICATION NOTES

Inductor 1

Using equation 6, inductance:
L = (18 x 0.4/200 x 103)/0.2
L = 180μH
Both the SEPIC and Cuk topologies offer advantages
over the single inductor Buck-Boost design. Input current
is continuous resulting in lower peak values, drive circuit
requirements are simple due to switch location and the
use of a coupled inductor reduces the cost and PCB
space penalties of these topologies.
One thing to note when using coupled inductors, for the
total ripple current and total inductive energy stored to
remain the same the inductance of each winding should
be halved (for our example Lcouple = 90μH).

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Application Notes
Magnetics
Inductor Selection for SEPIC Designs

APPLICATION NOTES

The SEPIC (single-ended primary inductance converter)
in an increasingly popular topology, particularly in battery
powered applications, as the input voltage can be higher
or lower than the output voltage. This presents obvious
design advantages but for many engineers the circuit
operation and component selection is a mystery, for those
that understand the basics the addition of a coupled
inductor is an added complication. This article looks at the
operation of the SEPIC and compares the design procedure for two single winding inductors with a coupled
inductor approach.
Basic Operation
Figure 1 shows the simple circuit diagram for a SEPIC,
during the switch (SW) ON time the voltage across both
inductors is equal to Vin. This is obvious for L1, however it
is not so clear for L2. In order to understand this we first
need to look at the voltage across Cp, neglecting ripple
voltage, this voltage is constantly at the value of Vin. The
simplest way to see this is when the circuit is at equilibrium, under these conditions there is no DC voltage across
L1 or L2, so one side of the capacitor is at Vin and the
other at zero volts.
When the switch is ON capacitor Cp is connected in parallel with L2, hence the voltage across L2 is the same as
the capacitor voltage, -Vin. This in turn means that diode
D1 is reverse bias and the load current is being supplied
by capacitor Cout. During this period energy is being
stored in L1 from the input and in L2 from Cp.

equal to Vout, in order for this to be true the voltage at the
node of Cp and L1 must be Vin + Vout. This in turn
means that the voltage across L1 is (Vin+Vout) – Vin =
Vout.
Inductor Selection
First, let us look at the selection of two separate inductors
for L1 and L2 in the following example:
Input voltage (Vin) – 2.8V – 4.5V
Output (Vout & Iout) – 3.3V, 1A
Switching Frequency (Fs) – 250kHz
Efficiency - 90%
First we need to calculate the duty cycle;
D = Vout/(Vout + Vin)
The worst case condition for inductor ripple current is at
maximum input voltage so;
D = 3.3/(3.3 + 4.5) = 0.423
Normally, the output inductor is sized to ensure that the
inductor current is continuous at minimum load and that
the output voltage ripple does not affect the circuit that
the converter is powering. In this case we will assume a
20% minimum load thus allowing a 40% peak to peak ripple current in the output inductor L2.
Calculating the value of L2;

Vin

L1

+

Cp

SW

D1

Vout

V = L di/dt

L2

Cout

Where V is the voltage applied to the inductor, L in the
inductance, di is the inductor peak to peak ripple current
and dt is the duration the voltage is applied for. Hence;
L = V.dt/di

Figure 1 - Simple SEPIC Circuit
When the switch turns off the current in L1 continues to
flow through Cp, D1 and into Cout and the load recharging Cp ready for the next cycle. The current in L2 also
flows into Cout and the load, ensuring that Cout is
recharged ready for the next cycle.
During this period the voltage across both L1 and L2 is
equal to Vout, once again this is fairly clear for L2 but no
so for L1. However we already know that the voltage
across Cp is equal to Vin and that the voltage on L2 is

dt = 1/Fs x D
dt = 1/(250 x 103) x 0.423 = 1.69 μs
V = Vin during the switch ON time so;
L2 = 4.5 x (1.69 x 10-6/0.4)
L2 = 19 μH
Using the nearest preferred value would lead to the
selection of a 22 μH inductor. It is common practice to
select the same value for both input and output inductors

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Application Notes
Magnetics
in SEPIC designs although when two separate parts are
being used it is not essential.
Having selected the inductance value we now need to
calculate the required RMS and peak current ratings for
both inductors.
For input inductor L1;
Irms = (Vout x Iout)/(Vin (min) * efficiency)
Irms = (3.3 x 1)/(2.8 x 0.9) = 1.31A

Although worst case ripple current is at maximum input
voltage the peak current is normally highest at the minimum input voltage.

From this it can be seen that by using a coupled inductor
the required inductance is halved. It is also important to
note that because the two winding are on the same core
they must be the same value. If they are not the voltage
across each winding will not be equal and Cp will act as a
short circuit to the difference.
Continuing with the example using an inductance value of
10μH we now need to calculate the worst case peak current requirement. We already know the RMS current in
each winding,
Input inductor RMS current = 1.31A
Output inductor RMS current = 1A
Ipeak = Iin + Iout + (0.5 x Iripple)

Iripple = (V.dt)/L
Iripple = (2.8 x 2.2 x 10-6)/22 x 10 -6 = 0.28A
Ipeak = 1.31 + 0.14 =1.45A
So a 22μH, 1.31Arms & 1.45Apk rated inductor is
required. For example the DR73-220 from Cooper
Coiltronics®, this part is 7.5mm square and 3.5mm high
with 1.62Arms and 1.67Apk current ratings.
For the output inductor L2
Irms = Iout = 1A
Iripple = (4.5 x 1.69 x 10-6)/22 x 10-6 = 0.346A
Ipeak = 1 + 0.173 = 1.173A
So a 22μH, 1Arms & 1.173Apk rated inductor is required,
which for simplicity could be the same DR73-220 inductor
used for L1.
Coupled Inductor Selection
When calculating the value for a coupled inductor you
need to bear in mind that all the current is effectively flowing in one inductor and that if the two windings are closely coupled the ripple current will be split equally between
them. So calculating the inductance value;
L = V.dt/di

APPLICATION NOTES

Ipeak = Irms + (0.5 x Iripple)

L = 4.5 x (1.69 x 10-6/0.8) = 9.5μH

Iripple = (2.8 x 2.2 x 10-6)/10 x 10-6 = 0.62A
Ipeak = 1.31 + 1 + 0.31 = 2.62A @ minimum input
voltage
So a 10μH coupled inductor with 2.31Arms and 2.62Apk
current ratings is required, for example DRQ74-100.
This part has the same 7.5mm square footprint as the
DR73-220 that was selected in the example using
separate inductors but is 4.35mm high.
Using a coupled inductor takes up less space on the
PCB and tends to be lower cost than two separate inductors. It also offers the option to have most of the inductor
ripple current flow in either the input or the output. This is
achieved by using a winding construction that positions
most of the leakage inductance in one winding, this will
cause most of the ripple current to appear in the opposite
winding. By doing this the need for input filtering can be
minimized or the output ripple voltage can be reduced to
very low levels when supplying sensitive circuits.
Cooper Bussmann offers a number of coupled inductor
options from the Cooper Coiltronics® range, including the
SDQ and DRQ series of shielded drum inductors and the
Econo-Pac and Octa-Pac range of toroid inductors. With
inductance values from 0.33μH to 1mH and sizes from
5.2mm 2 x 1.2mm high up to 12.5mm 2 x 8mm high
Cooper Coiltronics® offers one of the broadest ranges of
coupled inductor solutions.

From our earlier example the output ripple current needs
to be 0.4Apk-pk, so now we calculate for 0.8A as the
ripple current is split between the two windings
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Application Notes
Magnetics

APPLICATION NOTES

PoE Power Magnetics - Options and Trends
What is Power over Ethernet technology?
Ethernet enabled devices require both data connectivity
and a power supply. Power over Ethernet (PoE) technology allows Ethernet devices to receive power as well as
data over standard category 5 Ethernet cable. PoE is
governed by the standard defined in IEEE802.3af.
Specific details of the 802.3af standard are available
from the Institute of Electrical and Electronic Engineers
at www.ieee.org. This article highlights an easy to use,
low cost Cooper Coiltronics® PoE power magnetic selection. In short, the PoE port allows a powered device (PD)
to draw up to 12.95W from the power-sourcing equipment (PSE). PSE controls the PoE port and it identifies
PDs via detection and classification before powering the
port. The big advantage of PoE is the elimination of the
nuisance “wall wart” power converters. In this case, the
need to install additional AC power outlets and connect
electrical wires to each terminal is eliminated. Only one
cable is needed for your appliance. PoE promises to create a new world of network appliances by saving space,
lower cost, easier maintenance and flexible installation.
What is Power over Ethernet application?
PoE is gaining in popularity and manufacturers already
have products on the market such as VoIP (Voice over
Internet Protocol) telephones, UPS, Wireless LAN
access points, Bluetooth access points, Network cameras, Building access systems, Time and attendance
systems, Retail point-of-information systems, Battery
chargers for mobile phones and PDAs, Vending
machines and Gaming machines.

Signal Pair 1

Signal Pair 2

1

8

RJ-45

Spare Pair 1
(Power)

Spare Pair 2
(Power)

Cooper Coiltronics Power Over Ethernet Transformer
and characteristics
In order to comply with IEEE802.3af PoE standard,
Powered Device (PD) must meet the isolation requirement. Dc-Dc converters solve the isolation problem.
Forward and Flyback switcher topologies can use
Cooper Coiltronics PoE transformers to isolate the PD’s

PoE interface from the rest of its circuitry while stepping
down the PoE input voltage to power the PD circuitry.

Power Sourcing Equipment (PSE)
(Switch/Router/Hub)

AC Power

Powered Device (PD)
(Modem/Display/Printer...)

Powered Device (PD)
(Modem/Display/Printer...)

Cooper Coiltronics PoE transformers support 1500VAC
isolation in the power converter with feedback voltage of
11V at 0.1A. Available in 4W, 7W and 13W, the transformers accept input voltage range from 29.5V to 60V
using a nominal 250KHz switching frequency. An EFD15
core is used in 4W and 7W transformers while an EFD17
core is used in the 13W transformers. The EFD17 is a
core developed by Cooper Bussmann to fit in between
the EFD15 and EFD20 core sizes, and allows a smaller
solution than most competitive devices for the same
output power. These components operate in ambient
temperatures between -40 and +85 degrees Celsius.
Due to the size, Cooper Coiltronics PoE transformers
can handle DC current of PoE and are rated for
operating temperatures up to 125 degrees Celsius.
Cooper Coiltronics PoE transformers feature split primary and secondary windings to minimize leakage inductance – minimizing the result of imperfect magnetic linking of one winding to another. These components allow
multiple output variations. 3.3V and 5V PoE transformers
support three outputs while 12V transformers support
two outputs. Each of them has same output current
and voltage. Alternately, the isolated windings can be
combined in series to produce additional voltage
combinations.
PoE13W3VERS has three different outputs, 7V, 3.3V
and 1.8V respectively. These outputs can be connected
in series to produce a converter with 1.8V, 5.1V and
12.1V from the same transformer. The series configuration produces optimal cross regulation between outputs.
PoE13W2VERS has two different outputs, 5V and 3.3V.
VERS refers to the Cooper Coiltronics Versa-Pac® prod-

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Application Notes
Magnetics
uct lines that offer more than 500 usable inductor or
transformer configurations. The same concept has been
used in the PoE transformer family. Connecting the
windings in parallel will increase the current carrying
capability while connecting in series will increase the
output voltage. These components provide flexibility in
the design to connect the winding in series or parallel,
and thereby achieving higher voltage or current.

Conclusion
With the introduction of the IEEE Power over Ethernet
standard, the advantages of easy installation and
robustness of a powered network has quickly lead to
the introduction of many new network appliances. Higher
power devices demand the same advantage, since
reducing cost is always a driver for implementing new
technology. As a key player manufacturing power
magnetics, Cooper Coiltronics offers a series of
standard PoE products suitable to use in Dc-Dc
converters. Samples are available upon request
and the datasheet is available in the website:
www.cooperbussmann.com.

APPLICATION NOTES

Future trend- High Power over Ethernet (HPoE)
The current IEEE802.3af standard is restricted to low
power devices but the demand to standardize high
power PoE is increasing. A standard capable with double
the power limit of 13W on a 48V input was proposed.
High Power over Ethernet needs same level of safety,
reliability and should be backwards compatibility with the
IEEE 802.3af standard. Cooper Coiltronics is also
introducing 26W HPoE transformers. Due to power
and efficiency requirements, Forward converters with
synchronous

rectification are used. A gate drive winding will be
provided on the secondary side. The operating frequency
is 300KHz - available in 3.3V and 5V outputs. The new
standard delivers power to laptops, advanced network
cameras, videophone, flat screen monitor and other
high power consumption Ethernet devices.

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Application Notes
Magnetics

APPLICATION NOTES

High Current Inductors for DC-DC Converters
efficient power to high current low voltage processors
with fast transient response. High frequency switching
translates back to increased FET losses as the major
contributor to switching loss. The combined DC and AC
loss in inductors is the next highest contributor of power
loss. A roadmap of modern CPU’s shows that processor
current will keep increasing up to 200Amps by 2006
(5 phases, 40A/phase). High current inductors can
positively impact the overall system’s efficiency by up
to 2%. A well packaged high current inductor: provides
higher energy density and low loss (Core and Copper
loss) and can be available in both THT and SMT which
brings flexibility to chipset developers.
State-of-the-art power supply design of DC-DC
converters requires maximum thermal efficiency, low
switching losses and platform scalability. Overall systems
efficiency can be improved by the advancements in
strategic power components. When striving for maximum
efficiency, low switching components losses and parasitic
inductance losses are critical. This is driven by increasing
performance requirements of new microprocessors
ranging from 10A to120A and starting 50nH.
High current inductors can be found in many DC-DC
converter applications such as:
• VRM (Multi-phase for Servers / Desktop /
Notebook computers)
• DDR Memory Power Supply(Synchronous
Buck and Multi-phase Converters)
• GPU Graphics cards (Buck and Multi-phase
Converters)
Voltage Regulators

PWM
Control

Multi-phase VRMs for High-End Desktops, Servers,
and Notebook Computers
The evolution of today’s microprocessors requires high
frequency synchronous buck converters to provide highly

Cooper Coiltronics®
Cooper Coiltronics brand magnetics from Cooper
Bussmann offer a wide variety of standard and
customized solutions. We specialized in inductors
and transformers for DC-DC power conversion and
switch-mode applications requiring high frequency
magnetics. Our products are used in many standard
topologies including:
• EMI/ Noise Filter: Common Mode and Series Mode
• Averaging Choke: Buck and Boost
• Coupled Inductors: Coupled Choke, Flyback, Sepic
The Cooper Coiltronics High Current and Flat-Pac inductor product lines provide an optimal mix of innovative
packaging, high efficiency and unbeatable reliability.
We invest in new technologies that deliver superior
performance by providing high power density and
reduced inductor size when compared to conventional
solutions. Core and conductor losses become more
critical as higher switching frequencies are used. Our
designs utilize low loss core materials, new and custom
core shapes in combination with innovative construction
and packaging to provide power supply designers with
the highest performance parts available in the market.
Summary
Cooper Coiltronics magnetic component solutions deliver
high performance, innovative packaging, scalability and
unbeatable reliability. Our wide variety of High Current
and Flat-Pac inductors are specifically developed for
today and tomorrow’s DC-DC converters. For all your
high current inductor and transformer needs,
Cooper Coiltronics is your best power magnetics
solution partner.

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Magnetics

Magnetics Design Specification Form
Company:

Application:

Contact:

Sales Contact:

Date:

Address:

Sample Quantity:

Phone:

Target Cost:

Fax:

Email:

Standard
Geometry

䡺 ER 11/5-SG1
䡺 EE 8.3-SG6

Topology

䡺 Buck
䡺 Forward

Estimated Annual Quantity:

䡺 ER 14.5/6-SG2
䡺 EF 12.6-SG7

䡺 EFD 15-SG3
䡺 EE 13-SG8

䡺 Boost
䡺 Gate Drive

Frequency Range:

 Quote Only

Duty cycle:

䡺 EFD 17-SG4
䡺 SEE 16-SG9

䡺 Flyback
䡺 SEPIC

䡺 EFD 20-SG5

䡺 Coupled inductor
䡺 Common Mode
䡺 Continuous

䡺 Discontinuous

Input Voltage:
Power:

DESIGN PRIORITY

Output Voltage (s) @ Continuous Current:

Cost

䡺

Size

䡺

Efficiency

䡺

Input Switch Current (Ipk):
Max Ambient Temp:
DC Resistance (DCR):
Dielectric Withstanding Voltage (Hypot):

Mounting:

䡺 Surface Mount

䡺 Thru-Hole

Specify mounting pad or hole dimensions below.
Height:

Max Dimensions

Length:

Width:

Agency Approvals?

䡺 Yes

Agency and Document Number:

MAGNETICS DESIGN SPECIFICATION FORM

Inductance:

Schematic, Notes & Sketch:

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Power Magnetics Group

NOTES

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POWER MANAGEMENT

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Table of Contents

Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page PS-2
Aerogel Supercapacitors - A Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page PS-4
PowerStor’s A Series Aerogel Capacitors are unique, ultra-low ESR (Equivalent Series Resistance) cylindrical
devices based on a novel type of carbon foam, known as carbon aerogel. These ultra-low ESR A Series cylindrical
devices are specifically designed for low-duty cycle, high rate pulse power applications.

Aerogel Supercapacitors - B Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page PS-6
PowerStor’s B Series are ultra-high capacitance cylindrical supercapacitors designed to complement the original
ultra-low ESR A Series. The B Series have three times the capacitance of the A Series by volume but only two
times the ESR. This combination of ultra-high capacitance and low ESR makes the B Series extremely
versatile for a wide range of high-duty cycle, high rate and main power applications.

Aerogel Supercapacitors - P Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page PS-8
PowerStor’s P Series Aerogel Capacitors are designed for 5 volt applications. These devices have ESR values up
to several orders of magnitudes lower than traditional 5V memory backup devices and as a result can also be used in
pulse power and hold-up power applications. P Series supercapacitors are radial leaded devices and available in
vertical and horizontal configurations.

Aerogel Supercapacitors - KR Series . . . . . . . . . . . . . . . . . . . . . . . . . . .Page PS-10

NEW

PowerStor’s KR series are high capacitance 5.5V devices that utilize coin cell construction. These devices are
available in horizontal, vertical and cylindrical package styles and are designed for low current memory and RTC
backup applications.

Aerogel Supercapacitors - F Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page PS-13
PowerStor’s F series are unique ultra-thin, flat supercapacitors. PowerStor was the first in the world to
commercialize these supercapacitors. Their design is ideal for space-constrained applications, including PCMCIA
cards, hand-held devices, and hybrid battery-supercapacitor packs. F Series supercapacitors are custom designed
with high energy density or ultra-low ESR to meet each different application’s requirements.

Custom Product Offering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page PS-15
When a standard supercapacitor is not sufficient, PowerStor offers custom product design to meet an
application’s specific requirements. PowerStor has the capability to custom design through rapid prototyping
new supercapacitors by modifying their size and shape, ESR, capacitance, voltage or temperature capabilities.

Design Guides
Application Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page PS-16
Measurement Techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page PS-20
Aerogel Supercapacitor Calculator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page PS-22
Marketing Bulletins
Design Considerations In Selecting Aerogel Supercapacitors . . . . . . . . . . . . . . . . . . . . . .Page PS-24
Aerogel Supercapacitor Provide Both High Energy and High Power Capability . . . . . . .Page PS-26
Customer / Application Information Worksheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page PS-30
PS-1

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Product Overview

Product Overview
Superior Supercapacitor Technology
• Based on novel Aerogel carbon foam

RoHS
2002/95/EC

Broad Standard Product Line
• Cylindrical and prismatic packages
• High power (low ESR) and high energy

Custom Product Capabilities
• Application specific designs
• Size and shape, capacitance, ESR, voltage, temperature

Applications
Pulse Power
•
•
•
•
•

Low duty cycle pulse power
Hybrid battery-supercapacitor systems
Valve/solenoid actuation, HVAC controls
Radio transceivers, GSM/GPRS devices
Automated meters, portable printers

Bridge (or Hold-up) Power
•
•
•
•
•

Portable data terminals
Tape drives
Set top gaming devices
Infusion pumps
Automotive, avionics, military and medical

Main Power
• Toys
• Solar charged devices (lighting, signaling,
remote monitoring systems)
• Uninterruptible power systems

Memory Backup
• Microprocessor and micro-controller backup
• RAM / SRAM memory protection
• Real time clock (RTC) backup

Features

Benefits

Low ESR

High discharge power / rate capability

High capacitance

Long runtime / high energy density

Stable materials

Long life over wide temperature range

Static charge / discharge process; no chemical reactions

Nearly infinite cycle life

Series / parallel configurations

Higher voltage and energy than individual supercapacitors

Supercapacitor properties can be tailored

Custom for specific energy / power requirement

Custom packaging

Meet most mechanical requirements

PS-2

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Product Code

Key Features

Key Benefits

Capacitance

ESR

Voltage (Nominal)

Temperature

A Series

Ultra-low ESR
(Resistance)

Very High
pulse power
capability

0.47 to 4.7F

0.025 to
0.150 Ohms

2.5V

-25°C to 70°C

B Series

High energy
density

Long
run-time
capability

0.22 to 50F

0.025 to
3 Ohms

2.5V

-25°C to 70°C

P Series

Higher
Voltage

Designed
for 5V
applications

0.1 to 1F

As low as
0.2 Ohms

5V

-25°C to 70°C

High energy
density &
higher voltage

Long back-up
time in 5V
applications

0.1 to 1.5F

30 to
75 Ohms

5.5V

-25°C to 70°C

Polymer-foil
laminate
packaging

Fits into space
constrained
applications as
thin as 2mm

0.33F

0.250 Ohms

3.6V

-20°C to 60°C

KR Series

F Series

Product Overview

Product Overview

PS-3

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Aerogel Supercapacitors
A Series
Description
RoHS
2002/95/EC
The PowerStor® Aerogel Capacitor is a unique,
ultra-high capacitance device based on a novel type
of carbon foam, known as carbon aerogel. Aerogel capacitors
are similar to supercapacitors, ultracapacitors and
electrochemical double layer capacitors (EDLCs) with the
added benefit of low ESR (Equivalent Series Resistance).

Aerogel Supercapacitors - A Series

Features & Benefits
•
•
•
•
•

Applications

Very low ESR
Low leakage current
Long cycle life
High useable capacity
Very high specific capacitance
also available (B Series)

•
•
•
•
•

Pulse power
Hold-up power
DC/DC converters
Hybrid battery packs
Valve / solenoid actuation

CYLINDRICAL DEVICE

SPECIFICATIONS
Working Voltage

2.5 volts

Surge Voltage

3.0 volts

Nominal Capacitance Range

0.47 to 4.7 F

Capacitance Tolerance

-20% to +80% (20°C)

Operating Temperature Range

-25°C to 70°C

STANDARD PRODUCTS
Nominal
Capacitance
(F)
0.47

Part
Number
A0820-2R5474-R

Nominal ESR
(Equivalent Series Resistance)
Measured @ 1kHz (Ω)
0.150

Nominal Dimensions

Typical Mass
(grams/1 piece)

1.0

Ø = 8 mm; L = 20 mm

1.8

A1020-2R5105-R

0.090

Ø = 10 mm; L = 20.5 mm

2.6

1.5

A1030-2R5155-R

0.060

Ø = 10 mm; L = 30 mm

3.8

4.7

A1635-2R5475-R

0.025

Ø = 16 mm; L = 35 mm

10.7

PERFORMANCE
Parameter

Capacitance Change
(% of initial measured value)

ESR
(% of initial specified value)

Life (1000 hrs @ 70°C @ 2.5 volts DC)

≤ 30

≤ 300

Storage - Low and High Temperature

≤ 30

≤ 300

(1000 hrs @ -25°C and 70°C)

PS-4

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Aerogel Supercapacitors
A Series
DIMENSIONS (mm)
Part Number
A0820-2R5474-R
A1020-2R5105-R
A1030-2R5155-R
A1635-2R5475-R

D
8.0
10.0
10.0
16.0

D'
L
8.5
20.5
10.5
21.8
10.5
31.0
16.5
37.5
Maximum

L'
21.0
22.3
31.5
38.0

F
3.5
5.0
5.0
7.5
± 0.5

d'
0.50
0.60
0.60
0.80
± 0.02

C
C'
20.0
5.0
20.0
5.0
20.0
5.0
20.0
5.0
Minimum

Note: Longer lead is positive

F±0.5

ØD

ØD'

C'

C

Aerogel Supercapacitors - A Series

L'
L

Ød'
PVC SLEEVE
VENT

PART NUMBERING SYSTEM
A
Series
Code
B = Very
Low ESR









Dimensions (mm)
Diameter

-

2

R
5
Voltage (V)
R is decimal

Length

PACKAGING INFORMATION
Standard packaging: Bulk, 100 units per package.
Special packaging available upon request. Contact
factory.









Capacitance (μF)
Value

2R5 = 2.5V

Multiplier
Example:
475 = 47 x 105 μ F or 4.7 F

PART MARKING
Manufacturer
Capacitance (F)
Max. Operating Voltage (V)
Series Code (or part number)
Polarity Marking

PS-5

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Aerogel Supercapacitors
B Series
Description
RoHS
2002/95/EC
The PowerStor® Aerogel Capacitor is a unique,
ultra-high capacitance device based on a novel type of carbon foam, known as carbon aerogel. Aerogel capacitors are
similar to supercapacitors, ultracapacitors and electrochemical double layer capacitors (EDLCs) with the added benefit
of low ESR (Equivalent Series Resistance).

Features & Benefits
•
•
•
•
•

Applications

High specific capacitance
Very low ESR
Low leakage currents
Long cycle life
Ultra low ESR also available (A Series)

•
•
•
•

Main power
Hybrid battery packs
Hold-up power
Pulse power

CYLINDRICAL DEVICE

SPECIFICATIONS
Working Voltage

2.5 volts

Surge Voltage

3.0 volts

Nominal Capacitance Range

0.22 to 100 F

Capacitance Tolerance

-20% to +80% (20°C)

Operating Temperature Range

-25°C to 70°C

Aerogel Supercapacitors - B Series

STANDARD PRODUCTS
Nominal
Capacitance
(F)
0.22
1.0
1.5
2.2
3.3
4.7
6.8
10
22
33
50
100

Part
Number
B0510-2R5224-R
B0810-2R5105-R
B1010-2R5155-R
B0820-2R5225-R
B1020-2R5335-R
B0830-2R5475-R
B1030-2R5685-R
B1325-2R5106-R
B1635-2R5226-R
B1835-2R5336-R
B1840-2R5506-R
B1860-2R5107-R

Nominal ESR
(Equivalent Series Resistance)
Measured @ 1kHz (Ω)
3
0.400
0.300
0.200
0.150
0.150
0.100
0.060
0.040
0.030
0.025
0.020

Nominal Dimensions

Ø = 5 mm;
Ø = 8 mm;
Ø = 10 mm;
Ø = 8 mm;
Ø = 10 mm;
Ø = 8 mm;
Ø = 10 mm;
Ø = 13 mm;
Ø = 16 mm;
Ø = 18 mm;
Ø = 18 mm;
Ø = 18 mm;

Typical Mass
(grams/1 piece)

L = 11 mm
L = 13 mm
L = 12.5 mm
L = 20 mm
L = 20.5 mm
L = 30 mm
L = 30 mm
L = 26 mm
L = 35 mm
L = 35 mm
L = 40 mm
L = 60 mm

0.54
1.2
1.9
1.5
2.8
2.6
3.9
5.6
11.0
13.5
14.7
22.0

PERFORMANCE
Parameter

Capacitance Change
(% of initial measured value)

ESR
(% of initial specified value)

Life (1000 hrs @ 70°C @ 2.5 volts DC)

≤ 30

≤ 300

Storage - low and high temperature

≤ 30

≤ 300

(1000 hrs @ -25°C and 70°C)

PS-6

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Aerogel Supercapacitors
B Series
DIMENSIONS (mm)
Part Number
B0510-2R5224-R
B0810-2R5105-R
B1010-2R5155-R
B0820-2R5225-R
B1020-2R5335-R
B0830-2R5475-R
B1030-2R5685-R
B1325-2R5106-R
B1635-2R5226-R
B1835-2R5336-R
B1840-2R5506-R
B1860-2R5107-R

D
5.0
8.0
10.0
8.0
10.0
8.0
10.0
13.0
16.0
18.0
18.0
18.0

D'
L
5.5
11.5
8.5
13.0
10.5
13.9
8.5
20.5
10.5
21.8
8.5
30.5
10.5
31.0
13.5
27.9
16.5
37.5
18.5
37.5
18.5
41.5
18.5
59.5
Maximum

L'
12.0
13.5
14.4
21.0
22.3
31.0
31.5
28.4
38.0
38.0
42.0
60.0

F
2.0
3.5
5.0
3.5
5.0
3.5
5.0
5.0
7.5
7.5
7.5
7.5
± 0.5

d'
0.50
0.50
0.60
0.50
0.60
0.50
0.60
0.60
0.80
0.80
0.80
0.80
± 0.02

C
C'
20.0
5.0
20.0
5.0
20.0
5.0
20.0
5.0
20.0
5.0
20.0
5.0
20.0
5.0
20.0
5.0
20.0
5.0
20.0
5.0
20.0
5.0
20.0
5.0
Minimum

Note: Longer lead is positive

C'

F±0.5

C

ØD

ØD'

L'
L

Ød'
PVC SLEEVE

Aerogel Supercapacitors - B Series

VENT

PART NUMBERING SYSTEM
B
Series
Code
B = High
Capacitance






Dimensions (mm)

Diameter

-

2

R
5
Voltage (V)
R is decimal

Length

PACKAGING INFORMATION
Standard packaging: Bulk, 100 units per package.
Special packaging available upon request. Contact
factory.





Capacitance



Value

2R5 = 2.5V

Multiplier
Example:
475 = 47 x 105 μ F or 4.7 F

PART MARKING
Manufacturer
Capacitance (F)
Max. Operating Voltage (V)
Series Code (or part number)
Polarity Marking

PS-7

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Aerogel Supercapacitors
P Series
Description
RoHS
2002/95/EC
The PowerStor® Aerogel Capacitor is a unique,
ultra-high capacitance device based on a novel type of
carbon foam, known as carbon aerogel. Aerogel capacitors
are similar to supercapacitors, ultracapacitors and
electrochemical double layer capacitors (EDLCs) with the
added benefit of low ESR (Equivalent Series Resistance).

The P Series is available in an ultra-low ESR version, PA or
a low ESR but higher energy density version, PB.

LEADED DEVICE

SERIES
PA

PB

FEATURES AND BENEFITS
Generic
5.0 volts
Low ESR
High capacitance
Long cycle life
Low leakage currents

APPLICATIONS

Specific
Ultra-low ESR
Low ESR with higher
energy density

Pulse power
Bridge or hold up power
Bridge or hold up power
Memory backup
Battery swap out

SPECIFICATIONS
Working Voltage
Surge Voltage
Nominal Capacitance Range
Capacitance Tolerance
Operating Temperature Range

5.0 volts
6.0 volts
0.1 to 1.0 F
-20% to +80% (20°C)
-25°C to 70°C

STANDARD PRODUCTS
LOW ESR (PB SERIES)
Nominal
Capacitance
(F)
0.1
0.47
1.0

Part
Number
PB-5R0V104-R
PB-5R0H104-R
PB-5R0V474-R
PB-5R0H474-R
PB-5R0V105-R
PB-5R0H105-R

Nominal ESR
(Equivalent Series Resistance)
Measured @ 1kHz (Ω)
10

Nominal Dimensions

Typical Mass
(grams/1 piece)

5.5 x 10.8 x 12.5 mm

1.1

2

8.5 x 16.8 x 14.0 mm

2.4

1

8.5 x 16.8 x 21.5 mm

3.5

ULTRA-LOW ESR (PA SERIES)
Aerogel Supercapacitors - P Series

0.22
0.47

PA-5R0V224-R
PA-5R0H224-R
PA-5R0V474-R
PA-5R0H474-R

0.30

8.5 x 16.8 x 21.5 mm

3.5

0.20

10.5 x 20.8 x 22.5 mm

5.4

PERFORMANCE
Parameter
Life (1000 hrs @ 70°C @ 5.0 volts DC)
Storage - Low and High Temperature
(1000 hrs @ -25°C and 70°C)

Capacitance Change
(% of initial measured value)
≤ 30

ESR
(% of initial specified value)
≤ 300

≤ 30

≤ 300

PS-8

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Aerogel Supercapacitors
P Series
DIMENSIONS (mm)
Part Number
PB-5R0V104-R
PB-5R0H104-R
PB-5R0V474-R
PB-5R0H474-R
PB-5R0V105-R
PB-5R0H105-R
PA-5R0V224-R
PA-5R0H224-R
PA-5R0V474-R
PA-5R0H474-R
Tolerances

A

B

C

d’

D

D’

E

E’

F

P

6.0

11.3

13.0

0.5

20

15

25

20

2.0

7.3

9.0

17.3

14.5

0.5

20

15

25

20

2.0

11.8

9.0

17.3

22.0

0.5

20

15

25

20

2.0

11.8

9.0

17.3

22.0

0.5

20

15

25

20

2.0

11.8

11.0

21.3

23.0

0.6

20

15

25

20

2.0

5.3

Maximum

± 0.02

Minimum

± 0.5

Note: Longer lead is positive
B

B

C

F

C

A

A

d'
d'
C

C

A

A

D'

F
D

E'

P

E

P

P

VERTICAL

HORIZONTAL
PART NUMBERING SYSTEM

P
Series
Code
P = Pack

Version
A = Ultra-low ESR
- or B = High Capacitance

5

R
0
Voltage (V)
R is decimal
5R0 = 5.0V

PACKAGING INFORMATION
Standard packaging: Bulk, 100 units per package.
Larger bulk packages available upon request.


Configuration
V = Vertical
- or H = Horizontal







Capacitance (μF)
Value

Multiplier
Example:
474 = 47 x 104 μ F or 0.47 F

PART MARKING
Manufacturer
Capacitance (F)
Max. Operating Voltage (V)
Polarity Marking
Aerogel Supercapacitors - P Series

PS-9

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Aerogel Supercapacitors - KR Series

Aerogel Supercapacitors
KR Series
Description
RoHS
2002/95/EC
The Cooper PowerStor® Aerogel Capacitor is a unique,
ultra-high capacitance device based on a novel type of carbon form, known as carbon aerogel. Aerogel capacitors are
similar to Supercapacitors, ultracapacitors and electrochemical double layer capacitor (EDLCs) with the added benefit of
low ESR (Equivalent Series Resistance)

The KR series offers a wide range of high capacitance coin
cell style products for use in memory & RTC back-up applications. End products include computers, cameras, camcorders, telephones, printers, car stereos, CCTV, set top box
and PDP.

SPECIFICATIONS
Working Voltage

5.5 volts

Surge Voltage

6.3 volts

Nominal Capacitance Range

0.1 to 1.5 F

Capacitance Tolerance

-20% to +80% (20°C)

Operating Temperature Range

-25°C to 70°C

STANDARD PRODUCTS
Nominal
Capacitance
(F)

Part
Number

Nominal ESR
(Equivalent Series Resistance)
Measured @ 1kHz (Ω)

Nominal Dimensions

Typical Mass
(grams/1 piece)

0.1

KR-5R5V104-R

75

Ø=11.5mm; L=12.5mm; P=5mm

1.4

0.1

KR-5R5H104-R

75

Ø=11.5mm; L=5mm; P=10mm

1.4

0.1

KR-5R5C104-R

75

Ø=13.5mm; L=7.5mm; P=5mm

3.3

0.22

KR-5R5V224-R

75

Ø=11.5mm; L=12.5mm; P=5mm

1.4

0.22

KR-5R5H224-R

75

Ø=11.5mm; L=5mm; P=10mm

1.4

0.22

KR-5R5C224-R

75

Ø=13.5mm; L=7.5mm; P=5mm

3.3

0.33

KR-5R5V334-R

50

Ø=11.5mm; L=12.5mm; P=5mm

1.4

0.33

KR-5R5H334-R

50

Ø=11.5mm; L=5mm; P=10mm

1.4

0.33

KR-5R5C334-R

50

Ø=13.5mm; L=7.5mm; P=5mm

3.3

0.47

KR-5R5V474-R

50

Ø=11.5mm; L=12.5mm; P=5mm

1.4

0.47

KR-5R5H474-R

50

Ø=11.5mm; L=5mm; P=10mm

1.4

0.47

KR-5R5C474-R

50

Ø=13.5mm; L=7.5mm; P=5mm

3.3

1.0

KR-5R5V105-R

30

Ø=19mm; L=19.5mm; P=5mm

4.2

1.0

KR-5R5H105-R

30

Ø=19mm; L=6.5mm; P=20mm

4.2

1.0

KR-5R5C105-R

30

Ø=21.5mm; L=7.5mm; P=5mm

9.1

1.5

KR-5R5V155-R

30

Ø=19mm; L=19.5mm; P=5mm

4.2

1.5

KR-5R5H155-R

30

Ø=19mm; L=6.5mm; P=20mm

4.2

1.5

KR-5R5C155-R

30

Ø=21.5mm; L=7.5mm; P=5mm

9.1

PS-10

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PERFORMANCE
Parameter

Capacitance Change
(% of initial measured value)

ESR
(% of initial specified value)

Life (1000 hrs @ 70°C @ 5.5 volts DC)

≤ 30

≤ 400

Storage - Low and High Temperature

≤ 30

≤ 400

Aerogel Supercapacitors - KR Series

Aerogel Supercapacitors
KR Series

(1000 hrs @ -25°C and 70°C)

DIMENSIONS (mm)
Part Number

ØD

H

P

KR-5R5V104-R

11.5

12.5

5

KR-5R5H104-R

11.5

5

10

KR-5R5C104-R

13.5

7.5

5

KR-5R5V224-R

11.5

12.5

5

KR-5R5H224-R

11.5

5

10

KR-5R5C224-R

13.5

7.5

5

KR-5R5V334-R

11.5

12.5

5

KR-5R5H334-R

11.5

5

10

KR-5R5C334-R

13.5

7.5

5

KR-5R5V474-R

11.5

12.5

5

KR-5R5H474-R

11.5

5

10

KR-5R5C474-R

13.5

7.5

5

KR-5R5V105-R

19

19.5

5

KR-5R5H105-R

19

6.5

20

KR-5R5C105-R

21.5

7.5

5

KR-5R5V155-R

19

19.5

5

KR-5R5H155-R

19

6.5

20

KR-5R5C155-R

21.5

7.5

5

For parts 0.1F to 0.47F

V type

H type

C type

ØD
H

3. 0±0.3 H

H

ØD

P

P

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For parts 1.0F to 1.5F

V type

H type

C type

H

H

Aerogel Supercapacitors - KR Series

Aerogel Supercapacitors
KR Series

PART NUMBERING SYSTEM
K
Series
Code
K = Coin
Cell

R
Version

R = Leaded

–

5

R
5
Voltage (V)
R is decimal

Configuration

5R5 = 5.5V

V = Vertical
H = Horizontal
C = Cylindrical

PACKAGING INFORMATION
Standard packaging: Bulk, 500 units per package.
For 0.1F to 0.47F 500 pcs/bag

–

R

Capacitance (μF)
Value

Multiplier
Example:
474 = 47 x 104 μF or 0.47 F

RoHS
Compliant

PART MARKING
Manufacturer
Capacitance (F)
Max. Operating Voltage (V)
Polarity Marking

For 1.0F to 1.5F 100 pcs/tray, 5 trays per box

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Aerogel Supercapacitors
F Series
Description
RoHS
2002/95/EC

The PowerStor® Aerogel Capacitor is a unique,
ultra-high capacitance device based on a novel type of

carbon foam, known as carbon aerogel. Aerogel capacitors
are similar to supercapacitors, ultracapacitors and
electrochemical double layer capacitors (EDLCs) with the
added benefit of low ESR (Equivalent Series Resistance).

Features & Benefits

Applications – Low ESR
• High rate pulse applications

• Long cycle life

• GSM / GPRS applications

• Low leakage current

• PDA / Data Terminals

• Thin design

• Hybrid Battery-Capacitor packs

Aerogel Supercapacitors - F Series

• Ultra-low ESR

• High capacitance

SPECIFICATIONS
Working (nominal)
Working (maximum)
Surge
Operating @ 3.6 volts
Storage
Nominal
Tolerance

Voltage

Temperature Range
Capacitance

3.6 volts
4.2 volts
5.0 volts
-20°C to 60°C
-30°C to 75°C
0.33 F
-20% to +80% (25°C)
2A

Pulse Current (maximum)

CUSTOM PRODUCT
Nominal
Capacitance
(F)

Voltage
(V)

Part
Number

ESR (nominal @ 25°C)
Measured @ 1kHz (Ω)

Nominal
Dimensions

Typical Mass
(grams/1 piece)

0.33

3.6

FC-3R6334-R

0.250

2 x 17 x 40 mm

1.9

PERFORMANCE
Parameter

Capacitance Change
(% of initial specified value)

ESR Change
(% of initial specified value)

Life (1000 hrs @ 60°C @ 3.6 volts)

≤ 30 %

TBD

Storage - low and high temperature

≤ 30 %

TBD

(1000 hrs @ -30°C and 75°C)

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Aerogel Supercapacitors
F Series

Aerogel Supercapacitors - F Series

DRAWINGS (MM)

ASSEMBLY INSTRUCTIONS
This device should not be put through a solder reflow process. Do not expose the body of the aerogel supercapacitor to either the soldering iron or melted solder. Minimize the time that the soldering iron is in direct contact with the leads of the aerogel supercapacitor. Use
appropriate heat sinking to minimize heat transfer to the aerogel supercapacitor.

PART NUMBERING SYSTEM
F
Series
Code
F=
Flat Pack
Series

C
Model

PACKAGING INFORMATION
Packaging: 200 pieces per tray
5 trays (1000 pieces) per box

-

3

R
Voltage (V)
R is decimal
3R6 = 3.6V

6

3

3
4
Capacitance (μ F)
Value
Multiplier
334 = 33 x 104 μ F
or 0.33 F

PART MARKING
Manufacturer Name
Series Code (or Part Number)
Polarity Marking

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Custom Product Offering
Description
Cooper Bussmann’s supercapacitor solutions, using
PowerStor’s carbon aerogel technology, offer the added benefit
of customization. Application specific supercapacitors can be
designed by modifying their size and shape, ESR (Equivalent
Series Resistance), capacitance, voltage or temperature
capability.
In the portable device market, many applications are space
constrained. Using thin aluminum-polymer laminate,
supercapacitors under 1mm thick are achievable. These F
Series supercapacitors are ideal for PCMCIA cards. Traditional
cylindrical can-style A and B Series supercapacitors are
available as well as larger, very high capacitance cylindrical
and prismatic supercapacitors.
Pulse discharge capability is important for many portable or
remote applications to power transmitters, activate solenoids
or valves, assist motors or to improve the high rate discharge
capability of a low power battery system. PowerStor’s carbon
aerogel supercapacitors can be modified to achieve very low
ESR providing high rate discharge capability. In applications
where capacitance is important but ultra-low ESR is not
required, the supercapacitor can be modified to provide
higher energy density with marginally higher ESR.

Features and Benefits
• Application specific designs
• Customized form factors to meet most mechanical
requirements
• Tailored capacitance, ESR, and temperature capability
• Series configurations for higher voltages
• Complete system solutions
Application Types

Some applications require a wider temperature range than the
standard –25°C to 70°C. For these industrial or specialized
applications, supercapacitors can be designed to meet a more
severe range of –40°C to 85°C.

•
•
•
•

PowerStor Aerogel Supercapacitors provide solutions for a
wide range of applications. With a variety of package types,
adjustable capacitance and ESR, higher voltage ratings and
wider temperature range capability, supercapacitors can be
designed to meet the requirements of most applications.

Application Segments

Pulse power
Bridge or hold-up power
Main power
Memory backup

•
•
•
•
•

Industrial
Consumer
Medical
Automotive
Military

Custom Product Offering

A single supercapacitor has a nominal working voltage rating of
2.5V. Any application up to and including 2.5V can be operated
by a single supercapacitor, however many applications require
3.6V, 5.0V or even higher. P Series supercapacitors have been
designed for 3.6 and 5.0V applications. Custom multi-supercapacitor configurations are available for 12V, 24V or other
voltage ratings. Either passive or active voltage balancing
is used for all multi-supercapacitor configurations to ensure
good reliability.

CRITICAL SUPERCAPACITOR PARAMETERS FOR CUSTOMIZATION
Electrical

Mechanical

Environmental

Working Voltage (V)

_______

Max. Length (mm)

_______

Max. Temperature (°C)

_______

Minimum Voltage (V)

_______

Width/Diam. (mm)

_______

Min. Temperature (°C)

_______

Current draw (A)

_______

Height (mm)

_______

Discharge time (sec)

_______

Lead/Connector

_______

The electrical parameters can be used to calculate capacitance and ESR requirements and predict your supercapacitor solution. Use our
PowerStor Aerogel Supercapacitor Excel Calculator available at www.cooperbussmann.com.

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Application Guidelines
This document provides basic guidelines for application development using aerogel capacitors, also known as
supercapacitors. If questions arise during your development
process and are not answered in this document, contact Cooper
Bussmann.
Lifetime
PowerStor supercapacitors have a longer lifetime than secondary
batteries, but their lifetime is not infinite. The basic end-of-life
failure mode for a supercapacitor is an increase in equivalent
series resistance (ESR) and/or a decrease in capacitance. The
actual end-of-life criteria are dependent on the application
requirements. Prolonged exposure to elevated temperatures,
high applied voltage and excessive current will lead to increased
ESR and decreased capacitance. Reducing these parameters
will lengthen the lifetime of a supercapacitor. In general,
cylindrical supercapacitors have a similar construction to
electrolytic capacitors, having a liquid electrolyte inside an
aluminum can sealed with a rubber bung. Over many years, the
supercapacitor will dry out, similar to an electrolytic capacitor,
causing high ESR and eventually end-of-life.
Voltage
Supercapacitors are rated with a nominal recommended working
or applied voltage. The values provided are set for long life at
their maximum rated temperature. If the applied voltage exceeds
this recommended voltage, the result will be reduced lifetime. If
the voltage is excessive for a prolonged time period, gas generation will occur inside the supercapacitor and may result in leakage or rupture of the safety vent. Short-term overvoltage can
usually be tolerated by the supercapacitor.
Polarity

Ambient Temperature
The standard temperature rating for PowerStor supercapacitors is
–25°C to 70°C. Temperature in combination with voltage can
affect the lifetime of a supercapacitor. In general, raising the
ambient temperature by 10°C will decrease the lifetime of a
supercapacitor by a factor of two. As a result, it is recommended
to use the supercapacitor at the lowest temperature possible to
decrease internal degradation and ESR increase. If this is not
possible, decreasing the applied voltage to the supercapacitor
will assist in offsetting the negative effect of the high temperature.
For instance, 85°C ambient temperature can be reached if the
applied voltage is reduced to 1.8V per supercapacitor.
At temperatures lower than normal room temperature, it is possible to apply voltages slightly higher than the recommended working voltage without significant increase in degradation and reduction in lifetime. Raising the applied voltage at low temperatures
can be useful to offset the increased ESR seen at low temperatures. Increased ESR at higher temperatures is a result of permanent degradation / electrolyte decomposition inside the supercapacitor. At low temperatures, however, increased ESR is only
a temporary phenomenon due to the increased viscosity of the
electrolyte and slower movement of the ions.
Operating Life vs. Temperature and Charge Voltage
1,000,000

100,000
Life (Hours)

10,000

1,000

Design Guides

0

PowerStor supercapacitors are designed with symmetrical electrodes, meaning they are similar in composition. When a supercapacitor is first assembled, either electrode can be designated
positive or negative. Once the supercapacitor is charged for the
first time during the 100% QA testing operation, the electrodes
become polarized. Every supercapacitor either has a negative
stripe or sign denoting polarity. Although they can be shorted to
zero volts, the electrodes maintain a very small amount of
charge. Reverse polarity is not recommended, however previously charged supercapacitors have been discharged to -2.5V
with no measurable difference in capacitance or ESR. Note: the
longer they are held charged in one direction, the more polarized
they become. If reversed charged after prolonged charging in
one direction, the life of the supercapacitor may be shortened.

10

20

30

40

50

60

70

80

Temperature (Celsius)

30% drop in capacitance
@ 2.5V continuous.

30% drop in capacitance
@ 1.8V continuous.

50% drop in capacitance
@ 2.5V continuous.

The above plot shows the time taken for capacitance to drop by
30% at 1.8V & 2.5V and by 50% at 2.5V for continuous operation
at a given temperature. This can be used to estimate the operating life for specific applications where the minimum allowable
capacitance value is known.
Discharge Characteristics
Supercapacitors discharge with a sloping voltage curve. When
determining the capacitance and ESR requirements for an application, it is important to consider both the resistive and capacitive

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Application Guidelines
discharge components. In high current pulse applications, the
resistive component is the most critical. In low current, long duration applications, the capacitive discharge component is the most
critical. The formula for the voltage drop, Vdrop, during a discharge at I current for t seconds is:
Vdrop = I(R + t )
C
To minimize voltage drop in a pulse application, use a supercapacitor with low ESR (R value). To minimize voltage drop in a
low current application, use a supercapacitor with large capacitance (C value).
An Aerogel Capacitor Calculator program is available online at
http://www.cooperbussmann.com for predicting electrical requirements and matching these requirements to various supercapacitor configurations / alternatives.
Charge Methods
Supercapacitors can be charged using various methods including
constant current, constant power, constant voltage or by paralleling to an energy source, i.e. battery, fuel cell, DC converter, etc.
If a supercapacitor is configured in parallel with a battery, adding
a low value resistor in series will reduce the charge current to the
supercapacitor and will increase the life of the battery. If a series
resistor is used, ensure that the voltage outputs of the supercapacitor are connected directly to the application and not through
the resistor, otherwise the low impedance of the supercapacitor
will be nullified. Many battery systems exhibit decreased
lifetime when exposed to high current discharge pulses.
The maximum recommended charge current, I, for a
supercapacitor where Vw is the charge voltage and R is
the supercapacitor impedance is calculated as follows:
I = Vw
5R
Overheating of the supercapacitor can occur from continuous
overcurrent or overvoltage charging. Overheating can lead to
increased ESR, gas generation, decreased lifetime, leakage,
venting or rupture. Contact the factory if you plan to use a higher
charge current or higher voltage than specified.

required, during charging this is referred to as leakage current.
When the charge voltage is removed, and the capacitor is not
loaded, this additional current will discharge the supercapacitor
and is referred to as the self discharge current.
In order to get a realistic measurement of leakage or self discharge current the supercapacitor must be charged for in excess
of 100 hours, this again is due to the capacitor construction. The
supercapacitor can be modeled as several capacitors connected
in parallel each with an increasing value of series resistance. The
capacitors with low values of series resistance charge quickly thus
increasing the terminal voltage to the same level as the charge
voltage. However, if the charge voltage is removed these capacitors will discharge in to the parallel capacitors with higher series
resistance if they are not fully charged. The result of this being that
the terminal voltage will fall giving the impression of high self discharge current. It should be noted that the higher the capacitance
value the longer it will take for the device to be fully charged, see
figure 2 in the Measurement Techniques section for more details.
Series Configurations of Supercapacitors
Individual supercapacitors are limited to 2.5V (P Series reaches
5V using two supercapacitors in series). As many applications
require higher voltages, supercapacitors can be configured in
series to increase the working voltage. It is important to ensure
that the individual voltages of any single supercapacitor do not
exceed its maximum recommended working voltage as this could
result in electrolyte decomposition, gas generation, ESR increase
and reduced lifetime.
Capacitor voltage imbalance is caused, during charge and discharge, by differences in capacitance value and, in steady state,
by differences in capacitor leakage current. During charging
series connected capacitors will act as a voltage divider so higher
capacitance devices will receive greater voltage stress. For example if two 1F capacitors are connected in series, one at +20% of
nominal capacitance the other at –20% the worst-case voltage
across the capacitors is given by:
Vcap1 = Vsupply x (Ccap1 / (Ccap1 + Ccap2)
where Ccap1 has the +20% capacitance.
So for a Vsupply = 5V,
Vcap1 = 5V x (1.2 / (1.2 + 0.8) = 3V

Self discharge and leakage current as essentially the same thing
measured in different ways, due to the supercapacitor construction there is a high impedance internal current path from the
anode to the cathode. This means that in order to maintain the
charge on the capacitor a small amount of additional current is

From this it can be seen that, in order to avoid exceeding the
supercapacitor surge voltage rating of 3V, the capacitance values
of series connected parts must fall in a +/-20% tolerance range.
Alternatively a suitable active voltage balancing circuit can be

Design Guides

Self Discharge and Leakage Current

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Application Guidelines
employed to reduce voltage imbalance due to capacitance mismatch. It should be noted that the most appropriate method of
voltage balancing will be application specific.
Passive Voltage Balancing
Passive voltage balancing uses voltage-dividing resistors in parallel with each supercapacitor. This allows current to flow around
the supercapacitor at a higher voltage level into the supercapacitor at the lower voltage level, thus balancing the voltage. It is
important to choose balancing resistor values that provide for
higher current flow than the anticipated leakage current of the
supercapacitors, bearing in mind that the leakage current will
increase at higher temperatures.
Passive voltage balancing is only recommended for applications
that don’t regularly charge and discharge the supercapacitor and
that can tolerate the additional load current of the balancing resistors. It is suggested that the balancing resistors be selected to
give additional current flow of at least 50 times the worst-case
supercapacitor leakage current (3.3 kΩ to 22 kΩ depending on
maximum operating temperature). Although higher values of balancing resistor will work in most cases they are unlikely to provide adequate protection when significantly mismatched parts
are connected in series.
Active Voltage Balancing
Active voltage balancing circuits force the voltage at the nodes of
series connected supercapacitors to be the same as a fixed reference voltage; regardless of how any voltage imbalance occurs.
As well as ensuring accurate voltage balancing active circuits typically draw much lower levels of current in steady state and only
require larger currents when the capacitor voltage goes out of
balance. These characteristics make active voltage balancing circuits ideal for applications that charge and discharge the supercapacitors frequently as well as those with a finite energy source
such as a battery.

Design Guides

Reverse Voltage Protection
When series connected supercapacitors are rapidly discharged
the voltage on low capacitance value parts can potential go negative. As explained previously, this is not desirable and can
reduce the operating life of the supercapacitor. One simple way
of protecting against reverse voltage is to add a diode across the
capacitor, configured so that it is normally reverse bias. By using
a suitably rated zener diode in place of a standard diode the
supercapacitor can also be protected against overvoltage events.
Care must be taken to ensure that the diode can withstand the
available peak current from the power source.

Soldering Information
Excessive heat may cause deterioration of the electrical characteristics of the aerogel supercapacitor, electrolyte leakage or an
increase in internal pressure.
Follow the specific instructions listed below.
In addition:
• Do not dip aerogel supercapacitor body into melted solder.
• Only flux the leads of the aerogel supercapacitor.
• Ensure that there is no direct contact between the sleeve of the
aerogel supercapacitor and the PC board or any other component. Excessive solder temperature may cause sleeve to shrink
or crack.
• Avoid exposed circuit board runs under the aerogel
supercapacitor to prevent electrical shorts.
Manual Soldering
Do not touch the aerogel supercapacitor’s external sleeve with
the soldering rod or the sleeve will melt or crack. The recommended temperature of the soldering rod tip is less than 260°C
(maximum: 350°C) and the soldering duration should be less
than 5 seconds. Minimize the time that the soldering iron is in
direct contact with the terminals of the aerogel supercapacitor as
excessive heating of the leads may lead to higher equivalent
series resistance (ESR).
Wave Soldering
Use a maximum preheating time of 60 seconds for PC boards
0.8 mm or thicker. Preheating temperature should
be limited to less than 100°C.
Use the following table for wave soldering on leads only:

Solder Bath
Solder Exposure Time (seconds)
Temperature (°C) Recommended
Maximum
220
7
9
240
7
9
250
5
7
260
3
5

Reflow Soldering
Do not use reflow soldering on PowerStor supercapacitors
using infrared or convection oven heating methods unless the
supercapacitor is specifically rated to withstand reflow soldering
temperatures.

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Application Guidelines
Ripple Current

Emergency Procedures

Although PowerStor aerogel supercapacitors have very low resistance in comparison to other supercapacitors, they do have higher resistance than aluminum electrolytic capacitors and are more
susceptible to internal heat generation when exposed to ripple
current. Heat generation leads to
electrolyte decomposition, gas generation, increased ESR and
reduced lifetime. In order to ensure long lifetime, the maximum
ripple current recommended should not increase the surface
temperature of the supercapacitor by more
than 3°C.

If a supercapacitor is found to be overheating or if you smell a
sweet odor, immediately disconnect any power or load to the
supercapacitor. Allow the supercapacitor to cool down, then dispose of properly. Do not expose your face or hands to an overheating supercapacitor. Contact the factory for a Material Safety
Data Sheet if a supercapacitor leaks or vents. If exposed to electrolyte:

Circuit Board Design
Do not design exposed circuit board runs under the
supercapacitor. An electrical short could occur if the
supercapacitor electrolyte leaked onto the circuit board.
Circuit Board Cleaning
Avoid cleaning of circuit boards, however if the circuit board must
be cleaned use static or ultrasonic immersion in a
standard circuit board cleaning fluid for no more than 5
minutes and a maximum temperature of 60°C. Afterwards thoroughly rinse and dry the circuit boards. In general,
treat supercapacitors in the same manner you would an
aluminum electrolytic capacitor.
Long Term Storage
Do not store supercapacitors in any of the following
environments:
• High temperature and/or high humidity
• Direct contact with water, salt water, oil or other chemicals
• Direct contact with corrosive materials, acids, alkalis, or toxic
gases
• Direct exposure to sunlight
• Dusty environment
• Environment subject to excessive shock and/or vibration
Transportation Information

Note: In general the electrolyte, using the NFPA/HMIS
(0 to 4) rating system, has slight (1 out of 4) health and
fire hazard and minimal (0 out of 4) reactivity hazard.
Regulatory Information
PowerStor supercapacitors are rated non-hazardous under the
OSHA hazard communication standard (29 CFR 1910.1200)
General Safety Considerations
• Supercapacitors may vent or rupture if overcharged,
reverse charged, incinerated or heated above 150°C.
• Do not crush, mutilate, nail penetrate or disassemble.
• High case temperature (burn hazard) may result from
abuse of supercapacitor.
Disposal Procedures
PowerStor supercapacitors are non-regulated under RCRA
Waste Code. Supercapacitors may however be disposed of by a
specialized industrial waste processor or by incineration. Use
caution when incinerating as the supercapacitor can explode
unless it is crushed or punctured prior to incineration. Wear protective gear, such as face shields or goggles, coats/aprons and
gloves. Use high temperature to incinerate the supercapacitors
as the plastic (poly vinyl chloride) sleeving can produce chlorine
gas at lower incineration temperatures.

Design Guides

PowerStor supercapacitors are non-regulated by the US DOT
(Department of Transport) and IATA. The correct international
shipping description is “Electronic Parts – Capacitors”.

• Skin Contact: Wash exposed area thoroughly with
soap and water.
• Eye Contact: Rinse eyes with water for 15 minutes
and seek medical attention.
• Ingestion: Drink milk/water and induce vomiting;
seek medical attention.

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Measurement Techniques
Methods for Measuring Capacitance, Inflow Current, Internal Resistance and ESR

Supercapacitors exhibit considerable “dielectric absorption”
charge storage. As such, some traditional methods of
measuring capacitance may not yield accurate results when
measuring supercapacitors. A method for measuring
capacitance in supercapacitors is outlined below. This
method is recommended over others such as determining
the 63 percent voltage point and using the time in a RC
time constant calculation.
The following test circuit can be set up with a common
laboratory power supply set to the specified current and
voltage limits. The charging waveform, shown in Figure 1,
is best recorded with a digital oscilloscope. The cursor
function can be conveniently used to directly read the time
points between the 1.5 volt and 2.5 volt crossing. The
basic equation for the average current in a capacitor is:

actual leakage current. Dielectric absorption current flow
represents charge going into storage, but deeply buried in
terms of possessing a very long time constant. The inflow
current as a function of time is essentially logarithmic, as
shown in Figure 2:
10000

1F
10F
50F
1000

Inflow Current (μ
μA)

Capacitance Measurement:

100

10

1
0.1

i = C( ΔV ), solving for C: C = i( Δt )
Δt
ΔV

1

10

100

1000

Time (Hours)

Figure 2

For i = 1 ampere and ΔV = 1 volt, therefore C = Δt.
Capacitance in this example is numerically equal to the time
in seconds for the capacitor to charge from 1.5V to 2.5V.

These typical curves are measured with the test circuit
below. The parts were short circuited for 2 days prior to
beginning the test. Therefore, stored dielectric absorption
charge was essentially non-existent.

Working Voltage

3

*
DUT

Volts (v)

V(t)

constant
1 amp

millivolts

2

0
* if device has been previously charged,
short its terminals for at least 15 minutes

Time - seconds (t)

V
source

100 ohms

Working Voltage

DUT

measure t between 1.5 volt and 2.5 volts

Figure 1

Figure 3

Because dielectric absorption is pronounced, the device
under test should be well discharged before beginning the
test to ensure consistent results. If the device has previously been charged, then its terminals should be shorted for at
least 15 minutes before beginning the test.

True leakage currents, where dielectric absorption goes to
zero, take over 100 hours to reach as shown in Figure 2.
These leakage currents are on the order of only a few
microamperes. To continue to measure inflow current
beyond this point, one needs to use instrumentation capable
of accurately measuring microvolts and/or a larger resistor
value can be used in the circuit in Figure 3.

Inflow Current Measurement:

Design Guides

After time t:
inflow current (μA) = millivolts x 10

1

C (F) = t (sec)

Since supercapacitors exhibit pronounced dielectric absorption, the measurement of actual leakage current, or self-discharge current, is made difficult. When a supercapacitor is
charged to its working voltage, the inflow current exhibits
large, slowly decaying values for long times. The inflow current is the sum of dielectric absorption current flow and

Internal Resistance and ESR (equivalent series
resistance) Measurement:
For product specification purposes ESR or AC impedance is
measured using a commercial LCR bridge at 1 kHz. This
produces a rather precise, reproducible value. Another

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Measurement Techniques

Shown in Figure 4 is the oscilloscope trace obtained using
the capacitance test circuit and method. An enlargement of
the beginning of the trace is shown in Figure 5. The instantaneous voltage step which occurs the moment the 1
ampere charging current is applied is used to calculate
internal resistance. The internal resistance or DC impedance is equal to the step voltage divided by 1 ampere. For
devices which exhibit lower internal resistance than this
example, a higher constant current is required.

voltage - (v)

method is used to measure what is called the internal resistance or DC impedance and can be performed with the
same instrumentation used to measure capacitance
(described above). This method produces a value for internal resistance which is not nearly as precise and reproducible as the ESR measurement. However, internal resistance is more directly related to device behavior in many
pulse power applications.

time - seconds (t)

Figure 5
In this example:
Internal resistance = initial voltage step = 0.15 V = 0.15 Ohms
constant current
1A

voltage - (v)

Studies have shown that the internal resistance or DC
impedance value is usually between 1.1 and 1.5 times the
measured ESR or AC impedance value.

time - seconds (t)

Figure 4

Design Guides

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Aerogel Supercapacitor Calculator
Performing supercapacitor calculations and predicting
solutions for applications can be tedious, therefore PowerStor®
has developed an Aerogel Supercapacitor Calculator in
Microsoft Excel®. This program is available online at
http://www.cooperbussmann.com. An example of this
program is shown on the following page.
To determine the aerogel supercapacitor requirements for an
application, four key parameters are required:
• Working voltage, Vw, in Volts
• Minimum voltage, Vmin in Volts
• Average discharge current, I, in Amps
• If necessary convert power, P, in Watts to current, where
I = P / Vavg
• Discharge time, t, in seconds
Simply enter these four parameters into the calculator in step
1 and the program will calculate:
• Energy requirement, W, in Joules
• Minimum capacitance requirement, C, in Farads
• Maximum resistance, R, in Ohms
In step 2, select the operating parameters specific to the
application including whether the discharge is more similar to
a DC pulse or AC pulse at a 1kHz frequency. Next select the
operating temperature and use the "deviation from nominal
capacitance" factor to build in a safety margin, if necessary.
The program will then use these correction factors for both
capacitance and resistance throughout the remainder of the
calculations.

meets both the capacitance and resistance requirements from
step 1. In this step there is an option to configure supercapacitors in parallel and/or to force the number of supercapacitors
in series to a specific number. For example, the calculator
would recommend six 2.5V supercapacitors for an automobile
voltage of 14.4V (14.4V / 2.5V per supercapacitor = 5.76
supercapacitors, which round up to 6). In practice, increasing
the number of supercapacitors to eight in automobile applications lowers the voltage to 1.8V per supercapacitor, providing
an increased reliability margin for high temperature exposure,
with a direct result of longer life. The number of supercapacitors in series (actual) can be overwritten from the calculated
value.
Confirmation of the predicted aerogel supercapacitor solution
is done in step 4. First the total capacitance and resistance
values calculated are compared to the required values. Next
the energy and hold-up time requirements are confirmed. If
the energy and hold-up time are insufficient, chose a larger
supercapacitor or increase the number of supercapacitors in
parallel. Finally, the voltage drop is confirmed. The calculated
components of resistive and capacitive discharge are summed
and compared to the maximum value allowed. If the maximum voltage drop value is exceeded, simply chose a supercapacitor solution with lower ESR or increase the number of
supercapacitors in parallel.
Our goal for this calculator was to assist you in finding a
solution for your design challenges. Note: this program is
only intended to predict aerogel supercapacitor solutions. All
calculated solutions should be tested in the final application.
Contact Cooper Bussmann directly for further assistance and
application support.

Design Guides

The pull-down menu in step 3 has a list of PowerStor supercapacitor products. Select the appropriate supercapacitor that

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Aerogel Supercapacitor Calculator
PowerStor Aerogel Supercapacitor Calculations for:

Enter Company or Project Name
09/04/02

Four Simple Steps for Determining Supercapacitor Requirements
1. Enter values for Working Voltage, Minimum Voltage, Current and Time

Working Voltage (Vw)
Minimum Voltage [Vmin]
Current [I]
Time [t]

Vw =
Vmin =
I=
t=

Legend

Enter Known
Value
2.5
1
1
1

Input Values in Yellow
Volts
Volts
Amps
seconds

Required Values in Gray
Calculated Values in Light Blue
Comments in Green

Energy needed during hold-up period (Minimum)
Desired Capacitance (Minimum)
Desired Impedance (Maximum)

W = (Vw+Vmin)/2*I*t =

1.75 Joules

C = 2 Vw*I*t / (Vw^2 - Vmin^2) =
R = (Vw - Vmin) / I =

0.6667 Farads
1.500 Ohms

2. Select Operating Parameters and Correction Factors from pull-down menu
Discharge Pulse
Frequency

Use pull-down menu for Correction Factors to Capacitance and ESR

Deviation from Specified
Capacitance (-20% to +80%)

Temperature

DC

Nominal Capacitance

-20°C

Capacitance Correction Factors :
ESR Correction Factors :

1
1.5

0.8
2.25

1

3. Choose Supercapacitor from pull-down menu to meet Desired Capacitance and Desired Impedance
Note 1:
Note 2:
Note 3:
Note 4:

Total Capacitance equals 1/2x for two in series, 1/3x for three in series, etc.
Total Capacitance equals 2x for two in parallel, 3x for three in parallel, etc.
Total Resistance equals 2x for two in series, 3x for three in series, etc.
Total Resistance equals 1/2x for two in parallel, 1/3x for three in parallel, etc.
Part Number

Use pull-down menu to choose a specific model Supercapacitor

Capacitance

B0820-2R5225

2.2 F

ESR (AC @ 1 kHz)
0.225 Ohms

Standard Values
Single Device Capacitance

C=

Single Device Resistance

R=

Single Device Max Voltage
# supercapacitor(s) in parallel

2.2 Farads
0.225 Ohms

Vmax =
Increase p to increase Capacitance or

2.5 Volts

Corrected Values
1.76 Farads
0.759375 Ohms
2.500 Volts

1

reduce Resistance
# supercapacitor(s) in series (min. calculated)
Vw / Vcap (A = 2.5V; B = 2.5V; P = 5.0V) =
# supercapacitor(s) in series (actual) (See Note 5
s (rounded up) =

1.00
1

Note 5: Formula for # supercapacitor(s) in series (actual) can be manually overwritten if lower or higher Vw per supercapacitor desired. View Corrected Value for actual Single Device Max Voltage.

4. Confirm Time requirement is met for hold-up applications and/or Voltage Drop is acceptable for pulse applications.
Calculated Values

Final Supercapacitor Configuration
Total Capacitance

C=

Total Resistance

R=

Check Energy and Time Requirements
Energy available in supercapacitor(s)
Max. Hold-up Time with chosen supercapacitor(s)

1.76 Farads
0.759375 Ohms

Calculated Values
W = 1/2 C * (Vw^2 - Vmin^2) =
t = C (Vw - IR -Vmin) / I =

4.62 Joules
1.30 seconds

Required Values

Comments

0.6667 Farads

Capacitance Value Met

1.500 Ohms

Resistance Value Met

Required Values
1.75 Joules
1 seconds

Comments
Energy Value Met
Time Requirement Met

If Energy is insufficient, choose a Single Device with higher Capacitance or increase # supercapacitors in parallel.
Check to ensure that Energy available in supercapacitors is greater than Energy needed during hold-up period, or Maximum Hold-up Time is sufficient.

Check Voltage Drop

Voltage drop (resistive)
Voltage drop (capacitive)

Vdrop (resistive) = IR =
Vdrop (capacitive) = I (t / C)

Required Values

Comments

1.328 Volts

1.500 Volts

Voltage Drop Acceptable

Design Guides

Total Voltage Drop of supercapacitor(s) = Vdrop (resistive) + Vdrop (capacitive) =

Calculated Values

0.759 Volts
0.568 Volts

If Total Voltage Drop is greater than Maximum Allowed, determine whether resistance or capacitance is the main factor.
Choose supercapacitors with either more capacitance or less resistance, or increase # capacitors in parallel.
If Total Voltage Drop is less than Maximum Voltage Drop Allowed, STOP.

This program is intended to provide product design solutions that will help the user with design applications.
Once a product design solution has been determined, it should be tested by the user in all possible applications.
© Cooper Electronic Technologies 2002

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Marketing Bulletins

Design Considerations In
Selecting Aerogel Supercapacitors
Design Considerations In Selecting Aerogel Supercapacitors
Two major applications of aerogel supercapacitors are high
pulse power applications and short-term hold-up power.
Pulse power applications are characterized by very short,
but high current delivery to a load, i.e. during the transmit
period in a GSM mobile device. Hold-up applications are
characterized by the requirement to continue to deliver load
power for times on the order of seconds or minutes. An
example of a hold-up application is the parking of the
read/write head in a disk drive when power to the unit is
shut off. Each of these applications emphasize different
performance parameters of the device. High pulse power
applications benefit primarily from the aerogel supercapacitor's low internal resistance (R), while hold-up power applications benefit from the supercapacitor's large capacitance
(C) value.
This Marketing Bulletin presents the formulae used to calculate your application requirements and uses two examples
to illustrate their use. A program titled “Aerogel
Supercapacitor Calculator” designed in a Microsoft® Excel
spreadsheet is also available for your use.

Hold-Up Power Applications
An approximate calculation can estimate the value of an
aerogel supercapacitor needed in most applications. This
calculation equates the energy needed during the hold-up
period to the energy decrease in the supercapacitor, starting at Vwv and ending at Vmin.
Energy needed during hold-up period: 1/2 Iload (Vwv + Vmin) t
Energy decrease in supercapacitor: 1/2 C(Vwv2–Vmin2)
Therefore, the minimum capacitance value that guarantees
hold-up to Vmin (neglecting voltage drop due to IR) is:
C = Iload(Vwv + Vmin)t
in Farads
(Vwv2 –Vmin2)
Example:
Suppose a tape drive supply is 5.0V and can operate safely
down to 3.0V. If the DC motor requires up to 2 seconds of
hold-up prior to safe shutdown at 0.5A, then the use of the
above equation predicts that the hold-up capacitor must be
at least 0.5F.

Definitions
The following definitions are used in this note:
Symbol
C

Unit of
Measure
Farads

R

Ohms

ESR

Ohms

Vwv

Volts

Vmin

Volts

Iload

Amps

t

Seconds

Vdrop

Volts

Description
Nominal capacitance value of the
aerogel supercapacitor.
The nominal internal resistance of the
aerogel supercapacitor.
Equivalent Series Resistance measured at 1 kHz.
Normal or working charge voltage in
the circuit application.
The minimum voltage required to
operate the device.
In a hold-up application this is the
average current that continues to be
delivered to the load. It is an average
as the load current will increase as the
voltage decreases from Vwv to Vmin.
This is the required hold-up time in
the circuit, or in pulse applications,
t is the pulse duration.
The total decrease in working voltage
at the end of the discharge or high
current pulse.

One A Series supercapacitor can supply the required
capacitance. However, the nominal operating voltage of
2.5V is exceeded by the 5V requirement. Therefore, two
aerogel supercapacitors must be configured in series. If two
equal value supercapacitors are used, then the voltage
across each device will be approximately 2.5V, which is the
nominal voltage rating.
In the data sheets the A1020-2R5105 supercapacitor is listed with a nominal capacitance of 1.0F and when configured
two in series, provides 1.0F / 2 = 0.5F. Theoretically this
solution should work, but with a –20% end of the tolerance
range, this solution does not provide significant margin.
Stepping up to the next supercapacitor, the A1030-2R5155
would provide 1.5F / 2 = 0.75F at 5V. With a –20% tolerance, the minimum value could be as low as 1.2F / 2 = 0.6F.
This supercapacitor solution provides a sufficient safety
margin. After the high current pulse, the tape drive goes
into a very low current mode to hold up the electronics and
uses the remaining energy in the supercapacitor.
In this example, balancing the voltage across the series
combination is recommended to ensure neither device
exceeds the maximum voltage rating. See the notes on
voltage balancing in PS-5508 Application Guidelines.

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Pulse Power Applications
Pulse power applications are characterized by a relatively
low value of continuous current with brief, high current
requirements. Applications have pulses that range from less
than 1 millisecond to as high as a few seconds, and the
pulse current can be orders of magnitude higher than the
continuous or background current. The duty cycle of the
pulses is usually low, typically less than 20 %.
A worst-case design analysis assumes that the aerogel
capacitor is the sole supplier of energy during the pulse. In
this case the total drop in working voltage in the circuit consists of two components: the instantaneous voltage drop
due to load current supplied through the internal resistance
of the capacitor, and the drop in capacitor voltage at the end
of the pulse period. This relationship is shown in the following equation.
Vdrop = Iload (R + t/C)

the pulse width doubles or quadruples with GPRS. These
modems are now available in a PCMCIA card for notebook
computers. The constraints of the notebook and the PCMCIA connection are an output voltage of 3.3 +/- 0.3V and a
maximum current provided by the notebook of 1A. Many
power amplifiers (PA) have a minimum voltage requirement
of 3.0V. As it is possible for a notebook computer to output
only 3.0V, the voltage to the PA must first be boosted (3.6V
is common). With a working voltage of 3.6V and a minimum
voltage of 3.0V, the allowable voltage drop due to resistance
is 0.6V.

Marketing Bulletins

Design Considerations In
Selecting Aerogel Supercapacitors

Choosing the F Series Flat Pack FC-3R6334-R
supercapacitor yields 0.33F with 0.200 Ohms AC
impedance or 0.25 Ohms DC impedance, R. During a 2A
transmit pulse the battery provides approximately 1A and
the supercapacitor provides the remaining 1A of current.
Using the above formula, the voltage drop, IR, due to
resistance is 1A x 0.25 Ohms = 0.25V. The capacitive
component, I(t/C), is small at 0.002V compared to the
resistive voltage drop.

Inspection of this equation shows that the capacitor must
have low R and a high value of C if the voltage drop is to be
small.

Conclusions

For most pulse power applications the value of R is more
important than the value of C. This is illustrated using this
equation for the A1030-2R5155 supercapacitor. Its internal
resistance, R, can be estimated by using the DC ESR, nominally 0.075 Ohms (DC ESR = AC ESR x 1.5 = 0.060 Ohms
x 1.5 = 0.090 Ohms). The specified capacitance is 1.5F.
For a 0.001 second pulse, t/C is less than 0.001 Ohms.
Even for a 0.010 second pulse, t/C is only 0.0067 Ohms.
Clearly the value of R (0.090 Ohms) dominates the outcome
of Vdrop in the equation above.

Both hold-up power applications and pulse power applications can be designed by using the simple equations presented above. When the working voltage of the circuit
exceeds the maximum operating voltage rating of the aerogel supercapacitor, equal value supercapacitors should be
put in series arrangement. Often, the series arrangement
should be balanced to ensure equal voltage sharing. In
pulse power applications the voltage drop across the internal resistance of the device is usually the critical factor. The
aerogel capacitor’s ultra-low internal resistance provides a
new solution to the high impedance problems characteristic
of most battery systems.

Example:
A GSM/GPRS wireless modem requires a pulse current of
up to 2A for 0.6 milliseconds every 4.6 milliseconds. Note

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Marketing Bulletins

Aerogel Supercapacitors Provide Both
High Energy and High Power Capability
High power aerogel supercapacitors enable new pulse, bridge and main power applications.
The ultimate energy storage device should have high energy density that can be released rapidly. High energy batteries have been developed as single use or rechargeable systems but typically require minutes to hours to discharge, not
seconds. For high power, standard capacitors are capable
of discharging rapidly but have low energy density.
First generation supercapacitors also referred to as ultracapacitors and Electrochemical Double Layer Capacitors
(EDLC), have relatively high energy density but also very
high ESR (equivalent series resistance) and are therefore
only used in very low power memory backup applications.
New aerogel supercapacitors have been developed incorporating both the high energy density of batteries (100 times
the energy of electrolytic capacitors) and the high power of
capacitors (10 to 100 times the power of batteries) as
shown in Figure 1.
3

10

Energy
Density
(WH/L)

Development
Path

Li - ion
NiMH
NiCd

2

10

1

10 Farad/cc

10

Aerogel
Capacitors

0

10

1 Farad/cc

-1

10

Electrolytic
Capacitors

-2

10

2

10

3

4

10
10
Power Density (W/L)

5

10

Figure 1
Imagine the possible uses of a high energy, high power
energy storage device, sometimes referred to as "A solution
looking for a problem". Many engineers have and these
new supercapacitors are finding their way into a wide range
of new applications. In many instances, the supercapacitor
is the enabling technology for these new applications.
High power supercapacitors are designed similar to electrolytic capacitors however supercapacitors use high surface
area carbon for accumulation of charge as opposed to the
low surface area foils in electrolytic capacitors. An electric
double layer is formed at the interface of the solid carbon
electrode and liquid electrolyte. Aerogel supercapacitors
use aerogel carbon as the active material, while the rest of
the industry typically uses activated carbon. Aerogel carbon
is known for its high level of purity, high usable surface area
and high electrical conductivity. Key features for aerogel
supercapacitors include:

• Extremely low ESR for high power and low loss during
operation
• High energy density for long run-time
• Ultra low leakage current (can hold a charge for several weeks)
• Wide operating temperature range
• Can be cycled hundreds of thousands of times with
very fast charge and discharge rates, as opposed to
only hundreds of cycles for batteries.
Aerogel supercapacitors have reasonably high energy density compared with rechargeable batteries. In some applications, batteries have far more energy than is required, take
too long to charge, do not like to be held fully charged or
shallow discharged (NiCd memory effect) on a continuous
basis without periodic maintenance, or do not cycle long
enough. In applications such as electronic toys, UPS systems or solar charged lighting, aerogel supercapacitors
have replaced batteries as a better alternative.
Aerogel supercapacitor designs include 2.5V radial leaded
cylindrical and 5V leaded rectangular devices. There is also
a new low profile, flat pack design with thickness ranging
from 4 mm to as low as 1 mm. Large cylindrical and prismatic designs up to 2500F are also available.
These supercapacitors have characteristics that make them
ideal for applications in electronic circuits, portable devices
and systems powered by batteries, fuel cells or dc power
supplies. The aerogel supercapacitors can be used in applications ranging from low tech (toys) to medium tech (electronic control systems, valves and solenoids) to high tech
(microprocessor- controlled devices).
Aerogel supercapacitors provide:
• Pulse power characterized by short, high current pulses delivered to a load, allowing the use of a smaller
power supply or battery
• Hold-up or bridge power to a device or equipment for
seconds, minutes or days when the main power or
battery fails or when the battery is swapped out
• Main power or battery replacement
Pulse Power
A growing number of applications today require short bursts
of power, including phones, wireless modems, radio transceivers, motors, valves and solenoids. An engineer now
has two battery design options: (1) use a larger battery (or

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power supply) capable of the high pulse current or (2) use a
smaller battery (or power supply) with higher energy density
(at the expense of lower power density) configured in parallel with a high power supercapacitor. The second option is
known as a battery-supercapacitor hybrid configuration and
results in a high energy / high power device with smaller
size, lower weight and lower cost than the first option of a
larger battery or power supply

have been developed with very low ESR. The PCMCIA
specification allows less than 1A of current to flow from the
notebook battery to the PC card but GSM / GPRS transmissions requires up to 2A. GSM transmits for approximately
0.6 milliseconds every 4.6 milliseconds then runs at lower
currents for receive and standby modes in the remaining 4
milliseconds. The supercapacitor is charged by the excess
or available battery current in 4 milliseconds between the
0.6 millisecond discharges.

Marketing Bulletins

Aerogel Supercapacitors Provide Both
High Energy and High Power Capability

Pulse Power Calculations
Pulse power applications are characterized by a relatively
low value of continuous current with brief, high current
requirements. Applications have pulses that range from less
than 1 msec to as high as a few seconds, and the pulse
current can be orders of magnitude higher than the continuous or background current. The duty cycle of the pulses is
usually low, typically less than 20 %.
A worst-case design analysis assumes that the aerogel
supercapacitor is the sole supplier of current during the
pulse. In this case the total drop in working voltage in the
circuit consists of two components: (1) instantaneous voltage drop due to the internal resistance of the supercapacitor, and (2) capacitive drop during the discharge pulse.
This relationship is:
Vdrop = Iload (R + t/C)
Vdrop = Change in voltage (V)
Iload = Load current (A)
R = Internal resistance (Ohms)
t = Time (sec)
C = Capacitance (Farads)
For a small voltage drop, this equation shows that the
supercapacitor must have low R and high C. For many
pulse power applications where t is small, the value of R is
more important than the value of C. For example a lower
ESR 1.5F aerogel supercapacitor has an estimated internal
resistance of 0.060Ω. For a 0.001sec pulse, t/C is less than
0.001Ω. Even for a 0.010 sec pulse, it is only 0.007Ω.
Clearly, the value of R (0.060Ω) dominates the outcome of
Vdrop in Equation (1) for short pulse power applications.
Where t is large, 3 seconds for example, t/C = 2Ω and now
C dominates the outcome of Vdrop in Equation (1).
Ultra thin (down to 1mm), low ESR supercapacitors have
been developed for GSM / GPRS applications, including
wireless PCMCIA modems. Type II PCMCIA cards have
only 5mm inside clearance, but with a two-sided 1mm circuit
board, the supercapacitor height restriction can be as low
as 2mm. New thin supercapacitors using flexible packaging

The GPRS protocol allows higher transmission rates with
double to quadruple transmit times of GSM. Although low
ESR is the primary design criteria to minimize the voltage
drop from the supplied voltage (3.3V) to the minimum voltage required for the power amplifier (3V), supercapacitors
have significantly more capacitance than other capacitor
technologies allowing the extended pulse lengths of GPRS.
An example of an application requiring more capacitance to
minimize voltage drop during a pulse discharge is digital
cameras. Low ESR supercapacitors enable alkaline batteries to last longer in digital cameras. The challenge is to run
longer on fewer, low power alkaline batteries. The high
power requirement of the zoom motor causes alkaline batteries to fail before they have released all of their stored
energy. Due to the relatively long (several seconds) discharge pulse requirement for the zoom motor, larger capacitance (6 to 10F) supercapacitors have been found to extend
the useful life of the alkaline batteries.
Figure 2 compares 2 AA alkaline batteries (top) to 2 AA
alkaline batteries connected in parallel to a single 6F supercapacitor (bottom), without additional circuitry. To simulate
the zoom motor in a digital camera, each system was
discharged at 4 Watts for 3 seconds every 3 minutes.
This sequence resulted in 55 zoom cycles every 10,000
seconds. The voltage drop was larger for the battery (left)
compared to the hybrid (right). The battery-supercapacitor
hybrid ran approximately three times longer than the battery
alone.
Hold-up or Bridge Power
Hold-up power applications are characterized by a short,
high current or "bridge power" pulse followed by a longer,
low current drain. Standard memory backup type supercapacitors are capable of the low current drain but unable to
handle the short, high current pulse due to their high ESR.
During the pulse, the system voltage will drop below the
lower voltage allowed by the device’s electronics and the
system will shut down. For these applications, new low

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ESR aerogel supercapacitors are capable of handling the
high current pulse to minimize the voltage drop.

other DC power sources. As a result some portable and
remote applications are now using supercapacitors in place
of rechargeable batteries.

3.5
3

The toy cars and airplanes that claim "Charge In Under 10
Seconds" all use supercapacitors as the main power source
and alkaline batteries to charge them. The fast charge is
particularly important for children as their attention spans
are not long enough to wait for batteries to charge.

Voltage (V)

2.5
2
1.5
1
0.5
0
0

10000

20000

30000

40000

50000

60000

70000

Time (Seconds)

3.5
3
2.5
Voltage (V)

Marketing Bulletins

Aerogel Supercapacitors Provide Both
High Energy and High Power Capability

Solar charging is particularly important in remote applications. With 365 charge/discharge cycles per year, rechargeable batteries require frequent replacement. These applications include remote monitoring systems, transmitters, lighting and traffic signs. New portable applications currently
under development include flashlights, remote controls and
radios all charged using solar power.

2
1.5
1
0.5
0
0

10000

20000

30000

40000

50000

60000

70000

Time (Seconds)

Figure 2
Bridge power examples include solid-state hard drives and
portable data terminals. In the solid-state hard drive, all
memory is stored in DRAM. When main power is lost, the
information in the DRAM must be transferred to non-volatile
memory. This requires a high discharge current for a number of seconds after which the device requires a very low
current to maintain the system.
Portable data terminals use supercapacitors to "bridge"
between swapping of batteries when the device is in operation and not simply in sleep mode. Batteries can also fall
out or become temporarily disconnected if the device is
dropped. To prevent loss of data, supercapacitors are
designed to provide continuous power to the portable data
terminal until it is able to safely power down or the battery is
swapped or reconnected.
Main Power
The energy density for today’s supercapacitors has grown
substantially and is now only 3 to 10 times lower than some
rechargeable batteries (i.e. lead-acid), but with the added
benefits of nearly infinite cycle life, very short recharge
times and very high power density. Supercapacitors can be
charged directly from alkaline batteries, solar panels or

Another main power application that is ideal for supercapacitors is local area or restaurant pagers. These pagers run
for up to two hours while the patron is waiting for a table.
After being returned to the host/hostess, the pager only
requires a 10 second charge for the next customer. Nickel
cadmium batteries perform poorly in these shallow depth-ofdischarge applications due to their "memory" effect (loss of
capacity due to continuous shallow discharges). As a
result, constant battery replacement is no longer an issue or
added cost when supercapacitors designed to last the life of
the product are used for main power.
Design Considerations
Energy and Capacitance Calculations
To determine your aerogel supercapacitor requirements,
four key parameters are required:
• Working voltage, Vwv, in Volts
• Minimum voltage, Vmin, in Volts
• Average discharge current, Iload, in Amps
• (if necessary convert power, P, in Watts, to current,
Iload, where Iload = P/Vavg)
• Discharge time, t, in seconds
One can estimate the value of an aerogel supercapacitor
needed for most applications (Note 1). This calculation
equates the energy needed during the discharge period to
the energy decrease in the aerogel supercapacitor, from
Vwv to Vmin.
Energy needed for discharge:
1/2 Iload (Vwv + Vmin) t (Joules)

PS-28

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Energy decrease in supercapacitor:
1/2 C(Vwv2–Vmin2) (Joules)
Therefore, the minimum capacitance value that guarantees
hold-up to Vmin is:
C = Iload(Vwv + Vmin)t
in Farads
(Vwv2 –Vmin2)
Voltage Balancing
When the working voltage of the circuit exceeds the maximum operating voltage rating of a single supercapacitor, a
series configuration is required. Often, the series arrangement requires balancing to ensure equal voltage sharing.
Either passive or active balancing can be used to maintain
similar voltages among supercapacitors where the leakage
currents may be slightly different.
Passive balancing uses equal value resistors in parallel with
the supercapacitors. Using high value resistors, small currents are allowed to flow between the supercapacitors to
maintain similar voltages. Resistors with high values result
in lower leakage currents on the order of microamperes, an
important design consideration for hybrid battery-superca-

pacitor solutions. Lower value resistors lead to higher leakage currents but faster voltage equilibration of mismatched
components, and can be used where the main power is
delivered by a continuous source of power (power supply or
fuel cell).

Marketing Bulletins

Aerogel Supercapacitors Provide Both
High Energy and High Power Capability

Active balancing uses a microprocessor to measure voltage
differences and open gates allowing equilibration to occur
quickly but only when needed. Active balancing does not
add significant current leakage in the final configuration, but
comes at a higher price than passive balancing. High reliability applications, with higher voltages (> 5V), typically use
active balancing.
Summary
High power, high energy aerogel supercapacitors offer solutions for applications by providing pulse, hold-up, or main
power.
Note 1: An Aerogel-Supercapacitor-Calculator program is
available online at http://www.cooperbussmann.com and
can be used to predict required energy, capacitance and
ESR for any application.

PS-29

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Customer / Application
Information Worksheet
The following worksheet will enable us to understand your Aerogel Supercapacitor application better and to communicate more
effectively when we discuss the application with you. All information provided will be held confidential.

Date_____________________________
Company _______________________________Contact Name ________________________________________________________

Customer / Application Information Worksheet

Phone _________________________________Fax ____________________________email ________________________________
Application Description: ________________________________________________________________________________________
__________________________________________________________________________________________________________
__________________________________________________________________________________________________________
__________________________________________________________________________________________________________
Medical?

__ No

__ Yes

If Yes, Class _________ (I, II, or III)

Company Type:
_____OEM

_____Systems Integrator

_____Distributor

_____Consultant

_____Educational

_____Government

_____Military

_____Other ____________________

_____Main Power

_____Memory Backup or Hold-Up Power

Application Type:
_____Pulse Power
Circuit Information:
Desired working voltage (V) ____________________volts

Minimum allowable voltage (Vmin)______________________volts

Average current draw (I) ______________________Amps

Duration of current draw (t) ________________________seconds

Capacitor Calculations:
PowerStor has developed a Calculator program using Microsoft® Excel. Knowing a few simple parameters for the application, this
program will assist in determining the optimum Aerogel Capacitor Solution by:
1. Calculating Minimum Capacitance, Maximum ESR, and Capacitor Configuration.
2. Using a pull-down menu with all of PowerStor’s Aerogel Capacitor offerings for comparison to the calculated values.
The Powerstor Aerogel Capacitor Calculator is available at www.cooperbussmann.com for download.
W = Energy (Joules)
Vmin = Min. voltage (volts)

C = Capacitance (Farads)
V = Voltage (volts)
I = Current (Amps)
t = Time (seconds)
ESR = Equivalent Series Resistance (Ohms)
Vdrop = Allowable drop in working voltage (volts)

For Typical Hold-Up Power Applications:
Energy needed during hold up period:

W = IVt = ___________ in Joules

Energy decrease in capacitor:

W = 1/2 C(V2 –Vmin2) = ___________ in Joules

Desired C is:

C=

2IVt
V2 – Vmin2

= ___________Farads

For Typical Pulse Power Applications:
Maximum ESR:

ESR(maximum) = Vdrop /I = __________Ohms

PS-30

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Customer / Application
Information Worksheet
Optimum Solution:
Capacitor Part Number

________________________

# of Capacitors in Series Configuration

______

# of Capacitors in Parallel Configuration

______

Additional Information
______

% Time at Max. Temp.

______

Min. Operating Temp. (C)

______

% Time at Min. Temp.

______

Typical Operating Temp. (C) ______
Max. Storage Temp. (C)

______

Min. Storage Temp. (C)

______

% Time at Typical Temp. ______

Dimensional / Package Requirements
Max. Package Size (L, W, H, diam., etc.) ___________________________________________________________________
Package Style (thru-hole, SMT, etc.) ______________________________________________________________________

Customer / Application Information Worksheet

Max. Operating Temp. (C)

Industry package _____________________________________________________________________________________
Additional ___________________________________________________________________________________________
___________________________________________________________________________________________________
Product Schedule

Date Required

QTY or EAU

Initial Samples

__________________

__________________

Pre-production

__________________

__________________

Production

__________________

__________________

Expected Years of Operation ____________________________________
Target Cost $___________at Estimated Annual Usage Qty.________(pcs.)
Additional Information (Circuit diagram, product configuration, packaging, notes, etc.)

PS-31

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Aerogel Supercapacitors

NOTES

PS-32

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Products And Technical Expertise
Delivered Worldwide
Customer Assistance
Customer Satisfaction Team

Application Engineering

The Cooper Bussmann Customer Satisfaction Team is
available to answer questions regarding Cooper
Bussmann products and services. Calls should be made
Monday – Friday, 8:00 a.m. – 4:30 p.m. for all
US time zones.

Application Engineering assistance is available to all
customers. The Application Engineering team is staffed
by degreed electrical engineers and available by phone
with technical and application support Monday – Friday,
8:00 a.m. – 5:00 p.m. Central Time.

The Customer Satisfaction Team can be reach via:
• Phone: 636-527-3877
• Toll-free fax: 800-544-2570
• E-mail: customerservice@cooperbussmann.com

Application Engineering can be reached via phone, fax
or e-mail:
• Phone: 636-527-1270 (Cooper Bussmann®, PolySurg™)
• Phone: 561-998-4100 (Coiltronics®, PowerStor®)
• Fax: 636-527-1607
• E-mail: fusetech@cooperbussmann.com

Emergency and After-Hours Orders
To accommodate time-critical needs, Cooper Bussmann
offers emergency and after-hours service for next flight
out or will call. Customers pay only standard price for
the circuit protection device, rush freight charges and a
modest emergency fee for this service. Emergency and
after-hours orders should be placed through the
Customer Satisfaction Team. Call:
• Monday – Friday, 8:00 a.m. – 4:30 p.m.
Central Time 636-527-3877
• After hours 314-995-1342

Online Resources
Visit www.cooperbussmann.com and click on Electronics
for the following resources:
• Product cross reference
• RoHS status query
• Sample ordering
• Design calculators
• Literature downloads

Your Authorized Cooper Bussmann Distributor is:

©2007 Cooper Bussmann • Boca Raton, FL 33487
5 6 1 - 9 9 8 - 4 1 0 0 • w w w. c o o p e r b u s s m a n n . c o m

CB-5010 2007

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