891 3mtm Idc Ribbon Cable Socket Series

User Manual: 891

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78-5102-0022-0 Rev A
3M™ IDC Ribbon Cable Socket 891 Series

1 of 8

3M™ IDC Ribbon Cable Socket
Series 891

Product Specification 78-5102-0022-0
Released: 09-27-11

3M Electronic Solutions Division
Interconnect Products
6801 River Place Blvd.
Austin, TX 78726-9000
www.3Mconnectors.com

78-5102-0022-0 Rev A
3M™ IDC Ribbon Cable Socket 891 Series

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Table of Contents
Section

Page

1.

Scope …………………………………….……………...…………………………………………..…………………….………………

3

2.

3M Customer Documents ……………………………………………...…….……..………………………………………………..… 3

3.

Performance and Test Descriptions …………………..……………………………………………………………………………… 3

4.

Requirements Overview………………...…...…...…...………………………………………………………………………

3

5.

Electrical……………...………….………………………………………………...………………………………………………………

4

6.

Mechanical……………...………….………………………………………………...……………………………………………………

5

7.

Physical……………...………….………………………………………………...……………………………………………………….

5

8.

Environmental……………...………….………………………………………………...………………………………………………… 6

9.

Test Sequence………………………...………………………………………………………………………………………….

6

10. Figures……………………...…………………………………………………………………………………………………….

7

11. Agency Listings……………………………………………………………………………………………………………….

8

Important Notice …………………………………………………………………………………………………………………………

Steven A. Neu: Approved 09-27-11
Sandra J. Stuckert: Approved 09-27-11
Jim W. Wessman: Approved 09-27-11

3M Electronic Solutions Division
Interconnect Products
6801 River Place Blvd.
Austin, TX 78726-9000
www.3Mconnectors.com

9

78-5102-0022-0 Rev A
3M™ IDC Ribbon Cable Socket 891 Series

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1. Scope
This document summarizes test methods, test conditions and product performance requirements for the 3M 891XX-0X0X
socket. Listings of materials, finishes, test conditions, and test standards are included in this specification. In the event of
conflict between this specification and any documents listed below, the listed documentation supersedes this specification.

2. 3M Documents
78-5100-0449-8 TS-0449, Technical Data Sheet for IDC Ribbon Cable Socket, 891 Series
78-5100-2243-3 TS-2243, Technical Data Sheet for IDC Ribbon Cable Socket, D89 Series
34-7029-6396-7 3443-107N 3M™Locator Plate Instructions

3. Performance and Test Description
Unless otherwise specified, all primary qualification tests shall be performed on 89150-0001 (15µ" Au) sockets, and all current
rating rests shall be performed on 89160-0103 (30µ" Au) sockets. Both sets of tests shall be mated to straight 30µ" gold 3M™
headers and performed using multiple types of 26 and 28 AWG stranded cable at ambient environmental conditions per EIA364. Unless otherwise specified, all values and limits are typical of those obtained by qualification testing of the subject
product. All specifications are subject to revision and change without notice from 3M.

4. Requirements Overview
4.1 Ratings
Dielectric withstanding voltage: 500 VACRMS at sea level
Current: ( EIA-364-070 method 2, 30°C maximum temperature rise. )
1 Line
6* Lines
All Lines
28 AWG
4.25
1.75
1.25
26 AWG
4.50
2.25
1.50
Temperature: -55°C to +105°C
Insulation resistance: >1 x109Ω at 500 VDC

*Lines are adjacent in 2x3 configuration

4.2 Materials
Socket
Insulation: Glass Filled Polyester PBT
Strain Relief: Plastic
IDC Contact: Phosphor Bronze

4.3 Finishes
Plating:
Nickel: 50 - 150 µ inches, ASTM B689-97, SAE AMS-QQ-N-290
(891 Series)
Gold - Contact:
30 µ inches, MIL-G-45204 Type II, Grade C
(D89 Series)
15 µ inches, MIL-G-45204 Type II, Grade C
4.4 Regulatory Compliance
See the Regulatory Information Appendix (RIA) in the “RoHS compliance” section of www.3Mconnectors.com for
compliance information. See customer drawings for regulatory specifics on each connector.

3M Electronic Solutions Division
Interconnect Products
6801 River Place Blvd.
Austin, TX 78726-9000
www.3Mconnectors.com

78-5102-0022-0 Rev A
3M™ IDC Ribbon Cable Socket 891 Series

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5. Electrical
Description or
Parameter

Values &
Limits

Units

Dielectric
Withstanding
Voltage

500

VACRMS

Current rating

Low Level
Connection
Resistance
Insulation
Resistance

28
AWG
4.25
1.75
1.25

26
AWG
4.50
2.25
1.50

Requirement or Conditions
Measured between adjacent and opposing contacts.
No disruptive discharge during 1 minute duration.
Sea level with 70% relative humidity.

Test Standard
or Method
EIA-364-20A
Method D
Test Cond I

Wire gage.
Amperes

1 line driven. 30°C temp. rise. 20% derated.
6 lines driven. 30°C temp. rise. 20% derated.
All line driven. 30°C temp. rise. 20% derated.

EIA-364-70A

10 milliohm maximum ∆R contact resistance per
mated interface throughout testing.

EIA-364-23

Measured between adjacent and opposing contacts.
500 VDC for 1 minute duration.

EIA-364-21

<10

Milliohms

>1 x 109

Ohms

Description or
Parameter

Values &
Limits

Units

Header Pin
Retention / Contact

2 min

lbs

Vibration

≤10

ns

Physical Shock

≤10

ns

0.5 max

lbs

Mated to a .025" square pin. (Insertion Force)

EIA-364-13B

0.075 min

lbs

Mated to a .025" square pin. (Withdrawl Force)

EIA-364-13B

≥100

g

30 min

lbs

50- 30 µ"
25- 15 µ"

Mating cycles

Values &
Limits

Units

na

na

6. Mechanical

Mating Force /
Contact
Unmating Force /
Contact
Contact Wiper
Normal Force
Latch Retention
Force
Durability (with
Environmental)

Requirement or Conditions
Force / contact required to remove pin from header
body.
Mated connectors shall exhibit no discontinuities
greater than specified. 10 milliohm maximum ∆R
contact resistance per mated interface throughout
testing.
Mated connectors shall exhibit no discontinuities
greater than specified. 10 milliohm maximum ∆R
contact resistance per mated interface throughout
testing.

Displacement equivalent to mating with a .0245"
square pin. Test at end of sequence C.
Retention force of 2 latches on header, mated to
socket. Straight pull on cable.
10 milliohm maximum R contact resistance per
mated interface throughout testing.

Test Standard
or Method
EIA-364-29B
EIA-364-28D
Condition III

EIA-364-27B
Test Cond. A

EIA-364-04
N/A

EIA-364-09C

7. Physical
Description or
Parameter
Visual
Plating Thickness
Nickel
Gold
SN
Header
Solderability, LeadFree Dip Test

3M Electronic Solutions Division
Interconnect Products
6801 River Place Blvd.
Austin, TX 78726-9000
www.3Mconnectors.com

50-150
15
100-300
>95

Requirement or Conditions
No defects such as deformation, blister, damage,
crack, etc.

Microinches Average of random measurements from any 3 lots.

Percent

Coverage of solderable area.

Test Standard
or Method
EIA-364-18A

EIA-364-48

EIA-364-52
Category 3

78-5102-0022-0 Rev A
3M™ IDC Ribbon Cable Socket 891 Series

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8. Environmental
Test Standard
or method

Description or
parameter

Values &
limits

Temperature Life
(Thermal Aging)

105

Humidity

10

Thermal Shock

5

cycles

-55 to +105 degrees C. No evidence of mechanical
EIA-364-32C
damage. 10 milliohm maximum ∆R contact resistance
Test Cond. VII
per mated interface throughout testing.

Salt Spray

5

% NaCl

48 hours. 10 milliohm maximum ∆R contact
resistance per mated interface throughout testing.

EIA-364-26B
Test Cond. B

Moisture Sensitivity
Level (Header)

1

MSL

260 C Reflow. No defects such as deformation,
blister, damage, crack, etc., must maintain
dimensional stability.

J-STD-020C

Units

Requirement or conditions

1000 hours. No physical abnormalities . 10 milliohm
maximum ∆R contact resistance per mated interface
throughout testing.
25-65 C / 90-98%RH with -10 degree C subcycles. 10
24 hr cycles milliohm maximum ∆R contact resistance per mated
interface throughout testing.
degrees C

9. Test Sequence
9.1 Sequenced Tests

TEST FLOW
Sequence Numbers for Test Group

Test
Visual
Low Level Connection Resistance (LLCR)
Vibration
Physical Shock
Durability (with Environmental)
Temperature Life (Thermal Aging)
Humidity
Thermal Shock
Salt Spray
Contact Wiper Normal Force
Number of Samples (Connectors)
9.2 Independent Tests
1. Plating Thicknesses
2. Header Solderability
3. Header Moisture Sensitivity Level
4. Header Pin Retention
5. Dielectric Withstanding Voltage
6. Current Rating
7. Insulation Resistance
8. Mating Force / Contact
9. Unmating Force / Contact
10. Latch Retention Force

3M Electronic Solutions Division
Interconnect Products
6801 River Place Blvd.
Austin, TX 78726-9000
www.3Mconnectors.com

EIA-364-17A
Method A
Condition 4
EIA-364-31B
Method 3
Condition 7a

A

B

C

1,3,5

1,3,5,7

1,3

D
1
2,4,6
3
5

2

E
1
2,4,6

3
2

4
2

6
4
5

20

6

4
20

20

10

78-5102-0022-0 Rev A
3M™ IDC Ribbon Cable Socket 891 Series

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10. Figures
10.1 Current Rating

3M IDC Ribbon Cable Socket 891 Series, 28 AWG Cable
Temperature vs. Current Derating Curve
1 Contact Powered

Maximum Current (Amp)

12

Base Curve

10
8

Derated 20%

6
4

30°C T-Rise Limit- Derated (4.25 A)

30C T-Rise
Derated

2
Maximum Ambient Temperature (105°C)

0
0

10

20

30

40

50

60

70

80

90

100

110

Ambient Temperature (°C)

3M IDC Ribbon Cable Socket 891 Series, 28 AWG Cable
Temperature vs. Current Derating Curve
6 Contacts Powered

Maximum Current (Amp)

5

Base Curve

4
3

Derated 20%

2 30°C T-Rise Limit- Derated (1.75 A)
30C T-Rise
Derated

1
Maximum Ambient Temperature (105°C)
0
0

10

20

30

40

50

60

70

80

90

100

110

Ambient Temperature (°C)

3M IDC Ribbon Cable Socket 891 Series, 28 AWG Cable
Temperature vs. Current Derating Curve
All Contacts Powered

Maximum Current (Amp)

3.5
3

Base Curve

2.5
2

Derated 20%

30°C T-Rise Limit- Derated (1.25 A)

1.5
1

30C T-Rise
Derated

0.5

Maximum Ambient Temperature (105°C)

0
0

10

20

30

40

50

60

70

Ambient Temperature (°C)

3M Electronic Solutions Division
Interconnect Products
6801 River Place Blvd.
Austin, TX 78726-9000
www.3Mconnectors.com

80

90

100

110

78-5102-0022-0 Rev A
3M™ IDC Ribbon Cable Socket 891 Series

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Maximum Current (Amp)

3M IDC Ribbon Cable Socket 891 Series, 26 AWG Cable
Temperature vs. Current Derating Curve
1 Contact Powered

12
10

Base Curve

8
Derated 20%

6

30°C T-Rise Limit- Derated (4.50 A)

4

30C T-Rise Derated

2
Maximum Ambient Temperature (105°C)

0
0

10

20

30

40

50

60

70

80

90

100 110

Ambient Temperature (°C)

3M™ 891 Series Socket, 26 AWG Cable
Temperature vs. Current Derating Curve
6 Contacts Powered

Maximum Current (Amp)

6
5
4
3

Base Curve

30°C T-Rise Limit- Derated (2.25 A)

Derated 20%

2
1

30C T-Rise Derated

Maximum Ambient Temperature (105°C)

0
0

10

20

30

40

50

60

70

80

90

100

110

Ambient Temperature (°C)

3M IDC Ribbon Cable Socket 891 Series, 26 AWG Cable
Temperature vs. Current Derating Curve
All Contacts Powered

Maximum Current (Amp)

4
3.5
3

Base Curve

2.5
2

Derated 20%

30°C T-Rise Limit- Derated (1.50A)

1.5
1

30C T-Rise Derated

0.5

Maximum Ambient Temperature (105°C)

0
0

10

20

30

40

50

60

70

Ambient Temperature (°C)
11. Agency Listings
11.1 Underwriters Laboratories (UL)
Agency
UL
CUL

3M Electronic Solutions Division
Interconnect Products
6801 River Place Blvd.
Austin, TX 78726-9000
www.3Mconnectors.com

File No.
E68080
E68080

80

90

100

110

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3M™ IDC Ribbon Cable Socket 891 Series

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3M is a trademark of 3M Company.

Important Notice
All statements, technical information, and recommendations related to 3M’s products are based on information believed to be
reliable, but the accuracy or completeness is not guaranteed. Before using this product, you must evaluate it and determine if it is
suitable for your intended application. You assume all risks and liability associated with such use. Any statements related to the
product which are not contained in 3M’s current publications, or any contrary statements contained on your purchase order shall
have no force or effect unless expressly agreed upon, in writing, by an authorized officer of 3M.

Warranty; Limited Remedy; Limited Liability
This product will be free from defects in material and manufacture for a period of one (1) year from the time of purchase. 3M
MAKES NO OTHER WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY
OR FITNESS FOR A PARTICULAR PURPOSE. If this product is defective within the warranty period stated above, your exclusive
remedy shall be, at 3M’s option, to replace or repair the 3M product or refund the purchase price of the 3M product. Except where
prohibited by law, 3M will not be liable for any indirect, special, incidental or consequential loss or damage arising from
this 3M product, regardless of the legal theory asserted.
© 3M 2011. All rights reserved.

3M Electronic Solutions Division
Interconnect Products
6801 River Place Blvd.
Austin, TX 78726-9000
www.3Mconnectors.com



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