BAS19, BAS20, BAS21 Datasheet. Www.s Manuals.com. Bas19 R21 2 Diodes

User Manual: Marking of electronic components, SMD Codes KA, KA**, KA-***, KA2, KA3, KA4, KA5, KA6, KA7, KA8, KAA, KAB, KAC, Ka. Datasheets BAS19, BAW567DW, BD48L59G, BSS87, MMBD4148, MMBD4448DW, MMBD4448HADW, MMBD4448HAQW, MMBD4448HCDW, MMBD4448HCQW, MMBD4448HSDW, MMBD4448HTW, MMBD4448W, PZU9.1B3, RP130Q501B, RT9819D-25PV, Si1302DL.

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BAS19 / BAS20 / BAS21
SURFACE MOUNT FAST SWITCHING DIODE

Features
•
•
•
•
•
•

Mechanical Data
•
•

Fast Switching Speed
Surface Mount Package Ideally Suited for Automated Insertion
For General Purpose Switching Applications
High Conductance
Lead, Halogen and Antimony Free, RoHS Compliant
“Green” Device (Notes 1 and 2)
Qualified to AEC-Q101 Standards for High Reliability

•
•
•
•
•

Case: SOT23
Case Material: Molded Plastic. UL Flammability Classification
Rating 94V-0
Moisture Sensitivity: Level 1 per J-STD-020
Terminals: Solderable per MIL-STD-202, Method 208
Lead Free Plating (Matte Tin Finish annealed over Alloy 42
leadframe).
Polarity: See Diagram
Weight: 0.008 grams (approximate)

SOT23

Top View

Top View
Internal Schematic

Qualification
Commercial
Commercial
Commercial
Automotive
Commercial
Automotive
Commercial
Automotive

Case
SOT23
SOT23
SOT23
SOT23
SOT23
SOT23
SOT23
SOT23

Ordering Information (Note 3)
Part Number
BAS19-7-F
BAS20-7-F
BAS20-13-F
BAS20Q-13-F
BAS21-7-F
BAS21Q-7-F
BAS21-13-F
BAS21Q-13-F
Notes:

Packaging
3,000/Tape & Reel
3,000/Tape & Reel
10,000/Tape & Reel
10,000/Tape & Reel
3,000/Tape & Reel
3,000/Tape & Reel
10,000/Tape & Reel
10,000/Tape & Reel

1. No purposefully added lead. Halogen and Antimony Free.
2. Product manufactured with Data Code V9 (week 33, 2008) and newer are built with Green Molding Compound. Product manufactured prior to Date
Code V9 are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants.
3. For packaging details, go to our website at http://www.diodes.com.

Marking Information

KXX

Date Code Key
Year
Code
Month
Code

2000
L

2001
M

Jan
1

Feb
2

BAS19 / BAS20 / BAS21
Document number: DS12004 Rev. 21 - 2

2002
N
Mar
3

KXX = Product Type Marking Code
BAS19 Marking: KA8, KT3; KT2
BAS20 Marking: KT2, KT3
BAS21 Marking: KT3
YM = Date Code Marking
Y = Year (ex: Y = 2011)
M = Month (ex: 9 = September)

…..
…..
Apr
4

2009
W
May
5

2010
X

2011
Y
Jun
6

1 of 4
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2012
Z
Jul
7

2013
A
Aug
8

2014
B
Sep
9

2015
C
Oct
O

2016
D
Nov
N

2017
E
Dec
D

November 2011
© Diodes Incorporated

BAS19 / BAS20 / BAS21

Maximum Ratings @TA = 25°C unless otherwise specified
Characteristic
Repetitive Peak Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
RMS Reverse Voltage
Forward Continuous Current (Note 4)
Average Rectified Output Current (Note 4)
Non-Repetitive Peak Forward Surge Current

Symbol
VRRM
VRWM
VR
VR(RMS)
IFM
IO
@ t = 1.0μs
@ t = 1.0s

Repetitive Peak Forward Surge Current (Note 4)

BAS19
120

BAS20
200

BAS21
250

Unit
V

100

150

200

106
400
200
2.5
0.5
625

141

V
mA
mA

IFSM
IFRM

A
mA

Thermal Characteristics
Characteristic
Power Dissipation (Note 4)
Thermal Resistance Junction to Ambient Air (Note 4)
Operating and Storage Temperature Range

Electrical Characteristics

Symbol
PD
RθJA
TJ , TSTG

Value
250
500
-65 to +150

Unit
mW
°C/W
°C

@TA = 25°C unless otherwise specified

Characteristic
Reverse Breakdown Voltage (Note 5)

Symbol
BAS19
BAS20
BAS21

V(BR)R

Min
120
200
250

Max

Unit

⎯

Forward Voltage

⎯

1.0
1.25

Reverse Current @ Rated DC Blocking Voltage (Note 5)

⎯

100
15

nA
μA

Total Capacitance

⎯

5.0

Reverse Recovery Time

trr

⎯

Notes:

Test Condition
IR = 100μA
IF = 100mA
IF = 200mA
TJ = 25°C
TJ = 100°C
VR = 0, f = 1.0MHz
IF = IR = 30mA,
Irr = 0.1 x IR, RL = 100Ω

4. Part mounted on FR-4 board with recommended pad layout, which can be found on our website at http://www.diodes.com.
5. Short duration pulse test used to minimize self-heating effect.

IF, INSTANTANEOUS FORWARD CURRENT (A)

250

PD, POWER DISSIPATION (mW)

Note 4

200

150

100

0
0

160
80
40
120
TA, AMBIENT TEMPERATURE (° C)
Fig. 1 Power Derating Curve

BAS19 / BAS20 / BAS21
Document number: DS12004 Rev. 21 - 2

200

0.1

0.01

0.001

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0.2
0.4
0.8
1.0
0. 6
1.2
1.4
VF, INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 2 Typical Forward Characteristics

100

4.0
3.5

CT, TOTAL CAPACITANCE (pF)

IR, INSTANTANEOUS REVERSE VOLTAGE (μA)

BAS19 / BAS20 / BAS21

0.1

0.01

0.001

3.0
2.5
2.0
1.5
1.0
0.5

0.0001
0

150
200
50
100
250
VR, INSTANTANEOUS REVERSE VOLTAGE (V)
Fig. 3 Typical Reverse Characteristics

0.0
0

10
30
40
20
VR, DC REVERSE VOLTAGE (V)
Fig. 4 Total Capacitance vs. Reverse Voltage

Package Outline Dimensions

B C

H
K

K1
D
F

SOT23
Dim
Min
Max
Typ
A
0.37
0.51
0.40
B
1.20
1.40
1.30
C
2.30
2.50
2.40
D
0.89
1.03 0.915
F
0.45
0.60 0.535
G
1.78
2.05
1.83
H
2.80
3.00
2.90
J
0.013 0.10
0.05
K
0.903 1.10
1.00
K1
0.400
L
0.45
0.61
0.55
M
0.085 0.18
0.11
0°
8°
α
All Dimensions in mm

Suggested Pad Layout

Dimensions Value (in mm)

Z
Z

BAS19 / BAS20 / BAS21
Document number: DS12004 Rev. 21 - 2

2.9

0.8

0.9

2.0

1.35

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BAS19 / BAS20 / BAS21

IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. 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.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2011, Diodes Incorporated
www.diodes.com

BAS19 / BAS20 / BAS21
Document number: DS12004 Rev. 21 - 2

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Title                           : BAS19, BAS20, BAS21 - Datasheet. www.s-manuals.com.
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