Amphenol ICC 68491-172 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 68491-172 is a rectangular connector header from the BERGSTIK® II series, designed for through-hole board-to-board applications with 72 positions at 0.100" (2.54mm) pitch. This connector features male pins with solder termination and push-pull fastening. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications requiring compatible 72-position 2.54mm pitch header connectors.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	72
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Style	Board to Board
Shrouding	Unshrouded
Operating Temperature Range	-65°C ~ 130°C
Current Rating	3A
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the 68491-172 is determined by strict alignment with the following critical parameters:

Connector Configuration: 72 positions, 2 rows, 0.100" (2.54mm) pitch mating and row spacing
Contact Type: Male pin configuration
Mounting & Termination: Through-hole solder termination with push-pull fastening
Electrical Performance: Current and voltage ratings sufficient for the application
Environmental Compliance: Operating temperature range and flammability rating

The substitute parts listed below maintain these core specifications while offering variations in contact finish, insulation material, and compliance certifications. All substitutes are active products with current manufacturing availability.

Parameter Comparison

Parameter	68491-172 (Amphenol ICC)	3-826632-6 (TE Connectivity)	3-826925-6 (TE Connectivity)	BBD-136-G-B (Samtec)	BBD-136-T-B (Samtec)	TSW-136-24-T-D (Samtec)
Manufacturer	Amphenol ICC	TE Connectivity AMP	TE Connectivity AMP	Samtec Inc.	Samtec Inc.	Samtec Inc.
Series	BERGSTIK® II	AMPMODU Mod II	AMPMODU Mod II	BBD	BBD	TSW
Product Status	Obsolete	Active	Active	Active	Active	Active
Number of Positions	72	72	72	72	72	72
Number of Rows	2	2	2	2	2	2
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)
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)
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Style	Board to Board	Board to Board or Cable	Board to Board or Cable	Board to Board	Board to Board	Board to Board or Cable
Shrouding	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded
Contact Shape	Square	Square	Square	Circular	Circular	Square
Contact Finish - Mating	Gold or Gold, GXT™	Gold	Tin	Gold	Tin	Tin
Contact Material	Phosphor Bronze	Brass	Copper Alloy	Not specified	Not specified	Phosphor Bronze
Insulation Material	Not specified	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polyester, Glass Filled	Polyester, Glass Filled	Polybutylene Terephthalate (PBT)
Operating Temperature Range	-65°C ~ 130°C	-65°C ~ 105°C	-65°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 105°C
Current Rating	3A	5A	5A	Not specified	Not specified	Not specified
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	Not specified	Not specified	UL94 V-0
RoHS Status	RoHS non-compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

TE Connectivity 3-826632-6 and 3-826925-6: Both AMPMODU Mod II series connectors are active products with ROHS3 compliance and higher current ratings (5A) than the original 68491-172. These parts support board-to-board or cable configurations and feature PBT insulation with UL94 V-0 flammability rating. The primary difference between these two substitutes is contact finish: 3-826632-6 uses gold mating finish with tin post finish, while 3-826925-6 uses tin mating finish with tin post finish. Operating temperature range is -65°C to 105°C, which covers the lower end of the original specification but not the full 130°C maximum.

Samtec BBD-136-G-B and BBD-136-T-B: Both BBD series connectors are active products with ROHS3 compliance and extended operating temperature range (-55°C to 125°C). These parts feature circular contact geometry and glass-filled polyester insulation. BBD-136-G-B provides gold mating finish, while BBD-136-T-B provides tin mating finish. Current rating is not specified for these parts. The circular contact shape differs from the original square contact geometry.

Samtec TSW-136-24-T-D: This TSW series connector is an active product with ROHS3 compliance, tin mating finish, and square contact geometry matching the original design. It supports board-to-board or cable configurations with PBT insulation and UL94 V-0 flammability rating. Operating temperature range is -55°C to 105°C. Current rating is not specified.

For applications requiring full compliance with the original -65°C to 130°C temperature specification, none of the listed substitutes provide complete coverage. For applications within -55°C to 105°C or -65°C to 105°C ranges, the TE Connectivity and Samtec options are suitable. Selection should prioritize RoHS compliance requirements and contact finish specifications for the target application.

Frequently Asked Questions (FAQ)

Q: Can the 68491-172 be directly replaced with any of these substitute parts?

A: All listed substitutes maintain the critical connector specifications: 72 positions, 2 rows, 0.100" (2.54mm) pitch, male pins, through-hole solder termination, and push-pull fastening. Direct mechanical and electrical substitution is possible within the operating temperature and current rating constraints of each substitute. Verify that the substitute's operating temperature range and current rating meet your application requirements.

Q: What is the difference between the TE Connectivity 3-826632-6 and 3-826925-6?

A: Both parts are AMPMODU Mod II series connectors with identical mechanical specifications and current ratings (5A). The primary difference is contact finish: 3-826632-6 features gold mating finish with tin post finish, while 3-826925-6 features tin mating finish with tin post finish. Contact material also differs: 3-826632-6 uses brass, while 3-826925-6 uses copper alloy. Select based on contact finish requirements for your application.

Q: Why do the Samtec BBD-136 parts have circular contacts while the original has square contacts?

A: The BBD-136-G-B and BBD-136-T-B use circular contact geometry as part of their design specification. While this differs from the original square contact shape, both geometries are compatible with standard 0.100" (2.54mm) pitch PCB pad layouts. Verify mechanical fit and contact pressure requirements for your specific application.

Q: Which substitute has the best RoHS compliance?

A: All active substitute parts listed (3-826632-6, 3-826925-6, BBD-136-G-B, BBD-136-T-B, and TSW-136-24-T-D) are ROHS3 compliant. The original 68491-172 is RoHS non-compliant. If RoHS compliance is required, any of the active substitutes will satisfy this requirement.

Q: What is the operating temperature limitation for these substitutes?

A: The original 68491-172 operates from -65°C to 130°C. The TE Connectivity substitutes (3-826632-6 and 3-826925-6) operate from -65°C to 105°C. The Samtec substitutes (BBD-136-G-B, BBD-136-T-B, and TSW-136-24-T-D) operate from -55°C to 125°C. For applications requiring the full -65°C to 130°C range, none of the listed substitutes provide complete coverage. Select based on your application's actual temperature requirements.

Q: Are there packaging differences between these substitutes?

A: Yes. The original 68491-172 packaging is not specified. TE Connectivity parts are supplied in bulk packaging. Samtec BBD-136 parts are supplied in tube packaging. Samtec TSW-136-24-T-D is supplied in bulk packaging. Confirm packaging requirements for your procurement and assembly processes.

Q: What current rating should I use for the Samtec BBD and TSW series?

A: Current ratings are not specified in the technical data for BBD-136-G-B, BBD-136-T-B, or TSW-136-24-T-D. Contact the manufacturer directly for current rating specifications if this parameter is critical for your application. The TE Connectivity substitutes provide a specified 5A current rating, compared to the original 3A rating.

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