TE Connectivity 146131-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 146131-3 is a rectangular connector header designed for surface mount applications. This connector features 8 positions arranged in 2 rows with 0.100" (2.54mm) pitch spacing, suitable for board-to-board or cable interconnections. The part operates within a temperature range of -65°C to 125°C and carries a current rating of 3A at 30VAC.

The 146131-3 is classified as obsolete. Locating equivalent and substitute parts is necessary to support ongoing production requirements, maintenance operations, and design updates where this connector type is specified.

Key Parameters

Parameter	Value
Connector Type	Header, Breakaway
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	8
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Surface Mount
Termination	Solder
Contact Length - Mating	0.320" (8.13mm)
Insulation Height	0.090" (2.29mm)
Contact Shape	Square
Contact Finish - Mating	Gold
Insulation Material	Liquid Crystal Polymer (LCP)
Operating Temperature	-65°C ~ 125°C
Current Rating	3A
Voltage Rating	30VAC
Material Flammability Rating	UL94 V-0
Insulation Color	Black

Substitute Part Grouping Explanation

Substitution of the 146131-3 is determined by strict alignment of electrical and mechanical parameters. The following criteria establish compatibility:

Primary Substitution Criteria:

Pitch - Mating: 0.100" (2.54mm)
Number of Positions: 8
Number of Rows: 2
Row Spacing - Mating: 0.100" (2.54mm)
Contact Type: Male Pin
Mounting Type: Surface Mount
Termination: Solder
Contact Length - Mating: 0.320" (8.13mm)
Contact Shape: Square
Insulation Material: Liquid Crystal Polymer (LCP)
Operating Temperature Range: Minimum -55°C to 125°C (covers or exceeds original -65°C ~ 125°C)
Material Flammability Rating: UL94 V-0

Secondary Considerations:

Contact Finish - Mating: Gold (primary specification)
Insulation Height: 0.100" (2.54mm) acceptable (original 0.090")
Product Status: Active status preferred for ongoing availability
RoHS Compliance: ROHS3 Compliant preferred over non-compliant

Substitute parts are grouped into two categories: the direct manufacturer upgrade from TE Connectivity (5-146131-3) and functionally equivalent alternatives from Samtec Inc. (TSM series). All listed substitutes meet the core electrical and mechanical requirements for direct replacement in applications requiring 8-position, 2.54mm pitch surface mount headers.

Parameter Comparison

Parameter	146131-3 (Original)	5-146131-3 (TE Connectivity)	TSM-104-02-F-DV (Samtec)	TSM-104-02-F-DV-A (Samtec)	TSM-104-02-F-DV-A-P (Samtec)	TSM-104-02-F-DV-A-P-TR (Samtec)	TSM-104-02-F-DV-P (Samtec)	TSM-104-02-F-DV-P-TR (Samtec)	TSM-104-02-FM-DV (Samtec)	TSM-104-02-G-DV (Samtec)	TSM-104-02-G-DV-A (Samtec)
Connector Type	Header, Breakaway	Header, Breakaway	Header, Cuttable	Header, Cuttable	Header, Cuttable	Header, Cuttable	Header, Cuttable	Header, Cuttable	Header, Cuttable	Header, Cuttable	Header, Cuttable
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Positions	8	8	8	8	8	8	8	8	8	8	8
Number of Rows	2	2	2	2	2	2	2	2	2	2	2
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Contact Length - Mating	0.320" (8.13mm)	0.320" (8.13mm)	0.320" (8.13mm)	0.320" (8.13mm)	0.320" (8.13mm)	0.320" (8.13mm)	0.320" (8.13mm)	0.320" (8.13mm)	0.320" (8.13mm)	0.320" (8.13mm)	0.320" (8.13mm)
Insulation Height	0.090" (2.29mm)	0.090" (2.29mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Contact Finish Thickness - Mating	30.0µin (0.76µm)	30.0µin (0.76µm)	3.00µin (0.076µm)	3.00µin (0.076µm)	3.00µin (0.076µm)	3.00µin (0.076µm)	3.00µin (0.076µm)	3.00µin (0.076µm)	3.00µin (0.076µm)	10.0µin (0.25µm)	10.0µin (0.25µm)
Contact Material	Copper Alloy	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Insulation Material	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)
Operating Temperature	-65°C ~ 125°C	-65°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Insulation Color	Black	Black	Black	Black	Black	Black	Black	Black	Black	Black	Black
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: TE Connectivity 5-146131-3

The 5-146131-3 is the direct manufacturer upgrade path from the obsolete 146131-3. This part maintains identical electrical and mechanical specifications while offering active product status and RoHS compliance. The 5-146131-3 is available in bulk packaging with 16,822 units in stock, providing supply continuity for production environments. This part is the preferred choice for applications requiring exact specification matching and manufacturer continuity.

Secondary Recommendation: Samtec TSM Series (TSM-104-02-F-DV and variants)

The Samtec TSM-104 series provides functionally equivalent alternatives with the following characteristics:

All TSM variants maintain the core 8-position, 2.54mm pitch configuration
All TSM variants feature ROHS3 compliance and active product status
Operating temperature range of -55°C to 125°C covers the majority of applications (note: does not extend to -65°C minimum)
Phosphor bronze contact material provides equivalent electrical performance to copper alloy
Samtec parts feature cuttable connector design, offering design flexibility not present in the original breakaway design

TSM Variant Selection Guidance:

TSM-104-02-F-DV: Base configuration, tube packaging, 680 units in stock
TSM-104-02-F-DV-A: Adds board guide feature, tube packaging, 890 units in stock
TSM-104-02-F-DV-A-P: Board guide plus pick-and-place feature, tube packaging, 836 units in stock
TSM-104-02-F-DV-A-P-TR: Board guide plus pick-and-place, tape & reel packaging, 867 units in stock
TSM-104-02-F-DV-P: Pick-and-place feature, tube packaging, 1,023 units in stock
TSM-104-02-F-DV-P-TR: Pick-and-place feature, tape & reel packaging, 1,131 units in stock
TSM-104-02-FM-DV: Standard configuration, 1,123 units in stock
TSM-104-02-G-DV: Gold post finish (10.0µin), tube packaging, 645 units in stock
TSM-104-02-G-DV-A: Gold post finish with board guide, tube packaging, 903 units in stock

Compliance Considerations:

All substitute parts carry UL94 V-0 flammability certification and meet RoHS requirements. The 5-146131-3 maintains RoHS compliance status. All Samtec TSM variants carry ROHS3 compliance. Applications requiring strict RoHS compliance should prioritize the 5-146131-3 or any TSM variant.

Temperature Range Consideration:

Applications operating below -55°C require the TE Connectivity 5-146131-3, which maintains the original -65°C minimum operating temperature. Samtec TSM variants are limited to -55°C minimum and are not suitable for cryogenic or extreme cold-temperature applications.

Frequently Asked Questions (FAQ)

Q: Can the Samtec TSM-104 series directly replace the TE Connectivity 146131-3 in all applications?

A: The Samtec TSM-104 series provides electrical and mechanical compatibility for most applications. However, the operating temperature minimum differs: TSM variants operate from -55°C, while the original 146131-3 operates from -65°C. Applications requiring operation below -55°C must use the TE Connectivity 5-146131-3 upgrade. All other core parameters align for direct substitution.

Q: What is the difference between the TSM-104-02-F-DV and TSM-104-02-G-DV variants?

A: The primary difference is contact finish specification. The TSM-104-02-F-DV features gold mating contact finish with 3.00µin thickness and tin post finish. The TSM-104-02-G-DV features gold mating contact finish with 10.0µin thickness and gold post finish with 3.00µin thickness. The TSM-104-02-G-DV provides enhanced corrosion resistance through gold plating on both mating and post surfaces.

Q: Does the cuttable connector design of the Samtec TSM series affect compatibility with the original breakaway design?

A: The cuttable design of Samtec TSM connectors provides additional design flexibility compared to the breakaway design of the original 146131-3. Both designs accommodate the same mating pitch and contact configuration. The cuttable design allows for custom row configurations, while the breakaway design provides fixed 2-row separation. For applications requiring the exact breakaway configuration, the TE Connectivity 5-146131-3 maintains this feature.

Q: What packaging options are available for high-volume production?

A: The TE Connectivity 5-146131-3 is available in bulk packaging. Samtec TSM variants are available in tube packaging or tape & reel (TR) packaging. Tape & reel packaging is specified by the "-TR" suffix (TSM-104-02-F-DV-P-TR, TSM-104-02-F-DV-A-P-TR). Tape & reel packaging is optimized for automated pick-and-place assembly processes.

Q: Are there differences in insulation height between the original and substitute parts?

A: Yes. The original 146131-3 features 0.090" (2.29mm) insulation height. All Samtec TSM variants feature 0.100" (2.54mm) insulation height. The TE Connectivity 5-146131-3 maintains the original 0.090" specification. This 0.010" difference may affect PCB layout in space-constrained designs. Verify PCB clearances when substituting with TSM variants.

Q: What is the significance of the "A" suffix in TSM part numbers?

A: The "A" suffix indicates the inclusion of a board guide feature. TSM-104-02-F-DV-A and TSM-104-02-G-DV-A include board guides, while TSM-104-02-F-DV and TSM-104-02-G-DV do not. Board guides provide mechanical alignment assistance during mating operations.

Q: What is the significance of the "P" suffix in TSM part numbers?

A: The "P" suffix indicates pick-and-place compatibility features. TSM-104-02-F-DV-P and TSM-104-02-F-DV-A-P include pick-and-place features optimized for automated assembly equipment. Parts without the "P" suffix are suitable for manual assembly or standard pick-and-place operations.

Q: Is the TE Connectivity 5-146131-3 a direct form-fit-function replacement?

A: Yes. The 5-146131-3 is the direct manufacturer upgrade from the obsolete 146131-3. All electrical parameters, mechanical dimensions, and contact configurations are identical. The primary differences are active product status and RoHS compliance. This part is the recommended choice for applications requiring exact specification continuity.

Q: What contact material differences exist between the original and substitute parts?

A: The original 146131-3 uses copper alloy contacts. The TE Connectivity 5-146131-3 maintains copper alloy contacts. All Samtec TSM variants use phosphor bronze contacts. Phosphor bronze provides equivalent electrical conductivity and contact resistance characteristics while offering enhanced spring properties and corrosion resistance.

Q: Are all substitute parts certified to UL94 V-0 flammability standards?

A: Yes. The original 146131-3, the TE Connectivity 5-146131-3, and all Samtec TSM variants carry UL94 V-0 material flammability certification. This certification is maintained across all listed substitutes.

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