Amphenol ICC 68743-672 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 68743-672 is a rectangular connector header for through-hole mounting, featuring 72 positions arranged in 2 rows with 0.100" (2.54mm) pitch. This BERGSTIK® II series connector is designed for board-to-board applications with male pin contacts, solder termination, and push-pull fastening. The part is currently active in production with 1003 units in stock.

Substitute parts are necessary when the original manufacturer part becomes unavailable, when alternative compliance certifications are required (such as RoHS compliance), or when specific contact post lengths are needed for different PCB stack-up configurations.

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
Style	Board to Board
Shrouding	Unshrouded
Fastening Type	Push-Pull
Contact Shape	Square
Insulation Height	0.100" (2.54mm)
Material Flammability Rating	UL94 V-0
Insulation Color	Black
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 68743-672 is determined by strict equivalence in the following core parameters:

Connector type, contact type, and mating pitch (0.100" / 2.54mm)
Position count (72) and row configuration (2 rows)
Row spacing (0.100" / 2.54mm)
Mounting method (through hole) and termination (solder)
Board-to-board style with push-pull fastening
Unshrouded design with square contact shape
Insulation height (0.100" / 2.54mm)
UL94 V-0 flammability rating

The 3M 929 series connectors meet all these core requirements. Substitute parts differ in the following allowed parameters:

Contact post length (0.110", 0.175", 0.410", 0.710")
Contact finish material (tin-lead, tin, or gold)
Contact finish thickness (varies by variant)
Insulation material (PBT or PCT)
RoHS compliance status
Product status (active or last-time buy)

Parameter Comparison

Parameter	68743-672 (Main)	929710-01-36	929710-01-36-RK	929710-06-36-RK	929710-10-36-RK	929715-01-36-EU	929715-01-36-I	929715-03-36-I	929715-06-36-EU	929715-10-36-EU	929715-10-36-I
Manufacturer	Amphenol ICC	3M	3M	3M	3M	3M	3M	3M	3M	3M	3M
Number of Positions	72	72	72	72	72	72	72	72	72	72	72
Number of Rows	2	2	2	2	2	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)	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)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Contact Length - Mating	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)
Contact Length - Post	0.220" (5.58mm)	0.110" (2.79mm)	0.110" (2.79mm)	0.710" (18.03mm)	0.175" (4.45mm)	0.110" (2.79mm)	0.110" (2.79mm)	0.410" (10.41mm)	0.710" (18.03mm)	0.175" (4.45mm)	0.175" (4.45mm)
Overall Contact Length	0.638" (16.21mm)	0.528" (13.42mm)	0.528" (13.42mm)	1.128" (28.65mm)	0.593" (15.07mm)	0.528" (13.42mm)	0.528" (13.42mm)	0.828" (21.03mm)	1.128" (28.65mm)	0.593" (15.07mm)	0.593" (15.07mm)
Contact Finish - Mating	Gold or Gold, GXT™	Tin-Lead	Tin	Tin	Tin	Gold	Gold	Gold	Gold	Gold	Gold
Contact Finish Thickness - Mating	30.0µin (0.76µm)	100.0µin (2.54µm)	200.0µin (5.08µm)	200.0µin (5.08µm)	200.0µin (5.08µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	10.0µin (0.25µm)
Contact Material	Phosphor Bronze	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy
Insulation Material	Not specified	PBT, Polyester, Glass Filled	PCT	PCT	PCT	PCT	PBT, Polyester, Glass Filled	PBT, Polyester, Glass Filled	PCT	PCT	PBT, Polyester, Glass Filled
Insulation Height	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)
Operating Temperature	Not specified	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Current Rating (Amps)	Not specified	2.5A	2.5A	2.5A	2.5A	2.5A	2.5A	2.5A	2.5A	2.5A	2.5A
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
RoHS Status	RoHS non-compliant	RoHS non-compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant
Product Status	Active	Last Time Buy	Active	Active	Active	Active	Active	Active	Active	Active	Active
Inventory	1003 Pcs	1267 Pcs	1460 Pcs	1724 Pcs	1032 Pcs	1628 Pcs	1201 Pcs	974 Pcs	768 Pcs	1110 Pcs	1155 Pcs

Engineering Selection Recommendations

All 3M 929 series substitutes maintain electrical and mechanical compatibility with the 68743-672 across core mating parameters. Selection between substitute parts depends on specific application requirements:

For RoHS Compliance: Parts 929710-01-36-RK, 929710-06-36-RK, 929710-10-36-RK, 929715-01-36-EU, 929715-01-36-I, 929715-03-36-I, 929715-06-36-EU, 929715-10-36-EU, and 929715-10-36-I are RoHS compliant. Part 929710-01-36 is RoHS non-compliant and carries Last Time Buy status.

For Contact Post Length: Select based on PCB stack-up requirements. Available post lengths are 0.110" (929710-01-36, 929710-01-36-RK, 929715-01-36-EU, 929715-01-36-I), 0.175" (929710-10-36-RK, 929715-10-36-EU, 929715-10-36-I), 0.410" (929715-03-36-I), and 0.710" (929710-06-36-RK, 929715-06-36-EU).

For Contact Finish: Gold-plated variants (929715 series) provide superior corrosion resistance. Tin-plated variants (929710-01-36-RK, 929710-06-36-RK, 929710-10-36-RK) offer cost efficiency. Tin-lead variant (929710-01-36) is restricted by RoHS non-compliance and Last Time Buy status.

For Long-Term Availability: All active status parts are preferred over 929710-01-36 (Last Time Buy).

Frequently Asked Questions (FAQ)

Q: Can I use a 3M 929 series connector as a direct replacement for the Amphenol ICC 68743-672?

A: Yes, all 3M 929 series connectors listed are electrically and mechanically compatible. They share identical mating pitch (0.100" / 2.54mm), position count (72), row configuration (2 rows), mounting method (through hole), and termination (solder). Physical differences exist only in contact post length and contact finish material, which do not affect mating compatibility.

Q: What is the difference between the 929710 and 929715 series?

A: The primary difference is contact finish material. The 929710 series uses tin or tin-lead plating, while the 929715 series uses gold plating. Gold-plated contacts (929715) provide enhanced corrosion resistance and are suitable for applications requiring superior reliability. Tin-plated contacts (929710) are cost-effective alternatives for standard applications.

Q: How do I select the correct contact post length?

A: Contact post length determines the overall connector height and must match your PCB stack-up design. Available lengths are 0.110", 0.175", 0.410", and 0.710". Measure the required distance from the PCB surface to the mating surface and select the corresponding post length. The 68743-672 uses 0.220" post length; the closest 3M equivalent is 0.175" (929710-10-36-RK, 929715-10-36-EU, 929715-10-36-I).

Q: What is the significance of the "-EU" and "-I" suffixes in part numbers?

A: These suffixes indicate regional or packaging variants. "-EU" typically denotes European compliance variants, while "-I" indicates alternative insulation material specifications. Both are functionally equivalent for mating purposes.

Q: Is RoHS compliance required for my application?

A: RoHS compliance is mandatory for products sold in the European Union and increasingly required by major OEMs globally. If RoHS compliance is required, select from the compliant variants: 929710-01-36-RK, 929710-06-36-RK, 929710-10-36-RK, or any 929715 series part. The original 68743-672 is RoHS non-compliant.

Q: Why is 929710-01-36 marked as Last Time Buy?

A: Last Time Buy status indicates the manufacturer is discontinuing this part. New designs should use active status alternatives such as 929710-01-36-RK or equivalent 929715 series parts to ensure long-term availability.

Q: Are there any differences in insulation material between substitutes?

A: Yes. Some variants use PBT (Polybutylene Terephthalate) with glass filler, while others use PCT (Polycyclohexylenedimethylene Terephthalate). Both materials meet UL94 V-0 flammability requirements. PCT offers superior chemical resistance in certain environments; PBT provides cost efficiency. Selection depends on application environment.

Q: What is the operating temperature range for these connectors?

A: All 3M 929 series substitutes operate from -40°C to 105°C. The original 68743-672 does not specify an operating temperature range in available documentation.

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