Amphenol ICC 68693-372 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 68693-372 is a rectangular connector header featuring 72 positions with 0.100" (2.54mm) pitch, designed for through-hole board-to-board applications. This BERGSTIK® II series connector is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production support. The connector utilizes male pins with gold or GXT™ contact finish, phosphor bronze material, and operates across -65°C to 130°C temperature range with 3A current rating per contact.

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)
Current Rating	3A
Material Flammability Rating	UL94 V-0
Insulation Color	Black
Operating Temperature Range	-65°C ~ 130°C
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 68693-372 is determined by strict alignment with the following core parameters: 72-position count, 2-row configuration, 0.100" (2.54mm) mating pitch, 0.100" (2.54mm) row spacing, male pin contact type, through-hole mounting, solder termination, board-to-board style, unshrouded design, push-pull fastening, square contact shape, 0.100" (2.54mm) insulation height, and UL94 V-0 flammability rating.

Substitute parts are grouped by contact post length, which determines overall connector height and PCB stack-up compatibility. Contact finish (gold vs. tin) and insulation material variations are secondary parameters that do not prevent substitution when primary dimensional and electrical parameters align. Current rating reductions from 3A to 2.5A and operating temperature range narrowing from -65°C to -40°C represent functional limitations that must be evaluated against application requirements.

Parameter Comparison

Parameter	68693-372 (Main)	2372-6221-TG	929710-01-36	929710-01-36-RK	929710-03-36-RK	929710-06-36-RK	929710-10-36-RK	929710-11-36-RK	929715-01-36-EU	929715-01-36-I	929715-03-36-EU
Connector Type	Header	Header	Header	Header	Header	Header	Header	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
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
Style	Board to Board	Board to Board or Cable	Board to Board	Board to Board	Board to Board	Board to Board	Board to Board	Board to Board	Board to Board	Board to Board	Board to Board
Shrouding	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square
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)
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	0.520" (13.21mm)	0.120" (3.05mm)	0.110" (2.79mm)	0.110" (2.79mm)	0.410" (10.41mm)	0.710" (18.03mm)	0.175" (4.45mm)	0.125" (3.18mm)	0.110" (2.79mm)	0.110" (2.79mm)	0.410" (10.41mm)
Overall Contact Length	0.938" (23.83mm)	0.538" (13.67mm)	0.528" (13.42mm)	0.528" (13.42mm)	0.828" (21.03mm)	1.128" (28.65mm)	0.593" (15.07mm)	0.543" (13.80mm)	0.528" (13.42mm)	0.528" (13.42mm)	0.828" (21.03mm)
Contact Finish - Mating	Gold or Gold, GXT™	Gold	Tin-Lead	Tin	Tin	Tin	Tin	Tin	Gold	Gold	Gold
Contact Finish Thickness - Mating	50.0µin (1.27µm)	10.0µin (0.25µm)	100.0µin (2.54µm)	200.0µin (5.08µm)	200.0µin (5.08µm)	200.0µin (5.08µm)	200.0µin (5.08µm)	200.0µin (5.08µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	10.0µin (0.25µm)
Current Rating	3A	3A	2.5A	2.5A	2.5A	2.5A	2.5A	2.5A	2.5A	2.5A	2.5A
Operating Temperature Range	-65°C ~ 130°C	-55°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
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 non-compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant
Product Status	Obsolete	Active	Last Time Buy	Active	Active	Active	Active	Active	Active	Active	Discontinued at DiGi Electronics

Engineering Selection Recommendations

For applications requiring direct replacement of the 68693-372 with minimal design modification, the 3M 929715-01-36-EU and 929715-01-36-I are primary candidates. Both maintain gold contact finish matching the original specification, feature RoHS compliance, and carry active product status. The 929715-01-36-EU utilizes polycyclohexylenedimethylene terephthalate (PCT) insulation material, while 929715-01-36-I employs polybutylene terephthalate (PBT) with glass filler. Both deliver 2.5A current rating and -40°C to 105°C operating range with 0.110" (2.79mm) post length, resulting in 0.528" (13.42mm) overall contact length.

For applications where post length accommodation is critical, the 929710-03-36-RK and 929715-03-36-EU provide 0.410" (10.41mm) post length matching intermediate stack-up requirements. The 929710-03-36-RK offers tin contact finish with RoHS compliance and active status. The 929715-03-36-EU provides gold contact finish with RoHS compliance but carries discontinued-at-distributor status.

The 3M 2372-6221-TG (3M 2300 series) represents an alternative from a different product line, maintaining 3A current rating and -55°C to 105°C operating range. However, this part exhibits reduced contact finish thickness (10.0µin gold) and shorter post length (0.120" / 3.05mm), requiring PCB design evaluation for compatibility.

Applications with extended temperature or current requirements below -40°C or exceeding 2.5A should retain the original 68693-372 specification or consult with Amphenol ICC for direct obsolescence support.

Frequently Asked Questions (FAQ)

Q: Can 929710-series connectors directly replace the 68693-372 in existing designs?

A: 929710-series parts maintain identical mating pitch (0.100" / 2.54mm), row spacing, position count (72), and contact geometry. However, post length variations (0.110" to 0.710") require PCB footprint verification. The 929710-01-36-RK with 0.110" post length provides closest dimensional alignment to the original 0.520" post specification when accounting for insulation height differences. Current rating reduction from 3A to 2.5A and operating temperature narrowing from -65°C to -40°C minimum must be evaluated against application requirements.

Q: What is the functional difference between tin and gold contact finishes in these connectors?

A: Contact finish affects corrosion resistance and mating force characteristics. Gold finish (929715 series) provides superior corrosion resistance and lower contact resistance, suitable for low-signal applications and environments with potential corrosive exposure. Tin finish (929710 series) offers cost efficiency and adequate performance in controlled environments. Both finishes meet UL94 V-0 flammability requirements and support 2.5A current rating.

Q: How does post length affect PCB design compatibility?

A: Post length determines the distance from connector base to solder joint, directly impacting PCB stack-up and component clearance. The original 68693-372 specifies 0.520" (13.21mm) post length. Substitute parts range from 0.110" (929710-01-36-RK, 929715-01-36-EU) to 0.710" (929710-06-36-RK). Shorter posts reduce overall height but may require PCB thickness adjustment; longer posts increase clearance above the board. Verify PCB design accommodates selected post length before implementation.

Q: Are RoHS-compliant substitutes functionally equivalent to the non-compliant original?

A: RoHS compliance status reflects manufacturing process restrictions on hazardous substances but does not alter electrical or mechanical performance. The 929710-01-36-RK, 929710-03-36-RK, 929710-06-36-RK, 929710-10-36-RK, 929710-11-36-RK, 929715-01-36-EU, and 929715-01-36-I all provide RoHS compliance with identical connector functionality to the original 68693-372. Selection should prioritize application requirements rather than compliance status alone.

Q: What insulation material differences exist among substitute options?

A: The 929710 series employs polycyclohexylenedimethylene terephthalate (PCT) insulation, while 929715-01-36-EU uses PCT and 929715-01-36-I uses polybutylene terephthalate (PBT) with glass filler. The 2372-6221-TG utilizes thermoplastic glass-filled material. All materials meet UL94 V-0 flammability rating. Material selection affects mechanical rigidity and thermal performance but does not impact electrical characteristics for standard board-to-board applications.

Q: Why does the 68693-372 specify higher current rating (3A) than most substitutes (2.5A)?

A: Current rating reflects contact material, contact geometry, and thermal dissipation characteristics. The original phosphor bronze contacts with gold finish support 3A per contact. Substitute copper alloy contacts with tin or gold finish are rated 2.5A. Applications requiring 3A per contact should retain the original specification or consult Amphenol ICC for equivalent high-current alternatives.

Q: Is the 2372-6221-TG suitable as a direct replacement?

A: The 2372-6221-TG maintains 3A current rating and broader operating range (-55°C to 105°C) but introduces design considerations. Post length of 0.120" (3.05mm) is significantly shorter than the original 0.520", requiring PCB footprint redesign. Contact finish thickness reduction (10.0µin gold vs. 50.0µin original) may affect long-term reliability in high-cycle mating applications. Evaluate application-specific requirements before selection.

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