Amphenol ICC 75691-004 Socket Contact Rectangular Connector – Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 75691-004 is a socket contact rectangular connector designed for 22-26 AWG wire gauges with gold plating and crimp termination. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The Mini-PV™ series connector provides reliable interconnection in applications requiring socket-type contacts with gold finish specifications.

Key Parameters

Parameter	Value
Manufacturer Part Number	75691-004
Manufacturer	Amphenol ICC (FCI)
Category	Rectangular Connectors
Series	Mini-PV™, Basics+
Pin or Socket	Socket
Contact Termination	Crimp
Wire Gauge	22-26 AWG
Contact Finish	Gold
Product Status	Obsolete
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the 75691-004 is determined by the following critical parameters:

Wire Gauge: 22-26 AWG (mandatory match)
Contact Termination: Crimp (mandatory match)
Contact Finish: Gold (primary requirement; tin finish alternatives available for cost-sensitive applications)
Pin or Socket Configuration: Socket type preferred; non-gendered contacts acceptable as functional equivalents
Moisture Sensitivity Level: MSL 1 (Unlimited) maintained across all substitutes
Product Status: Active status preferred for long-term availability

Substitute parts are grouped into two categories: direct Amphenol ICC equivalents and cross-manufacturer Molex alternatives. All listed substitutes maintain the core electrical and mechanical compatibility with the original 75691-004 specification.

Parameter Comparison

Part Number	Manufacturer	Series	Pin/Socket	Contact Finish	Wire Gauge	Termination	Product Status	RoHS Status	Packaging
75691-004	Amphenol ICC (FCI)	Mini-PV™, Basics+	Socket	Gold	22-26 AWG	Crimp	Obsolete	RoHS non-compliant	—
75691-004LF	Amphenol ICC (FCI)	Mini-PV™, Basics+	Socket	Gold	22-26 AWG	Crimp	Active	RoHS Compliant	Bulk
0008500111	Molex	KK 2578	Non-Gendered	Tin	22-26 AWG	Crimp	Active	ROHS3 Compliant	Tape & Reel (TR)
0008550123	Molex	KK 2578	Non-Gendered	Gold	22-26 AWG	Crimp	Active	ROHS3 Compliant	Tape & Reel (TR)
0008550137	Molex	KK 2578	Non-Gendered	Gold	22-26 AWG	Crimp	Active	ROHS3 Compliant	Tape & Reel (TR)
0008560123	Molex	KK Trifurcon 7258	Non-Gendered	Gold	22-26 AWG	Crimp	Active	ROHS3 Compliant	Cut Tape (CT)
0008580125	Molex	KK 2578	Non-Gendered	Gold	22-26 AWG	Crimp	Active	ROHS3 Compliant	Tape & Reel (TR)
0008650110	Molex	KK 2578	Non-Gendered	Gold	22-26 AWG	Crimp	Active	ROHS3 Compliant	Tape & Reel (TR)
0008650121	Molex	KK Trifurcon 7258	Non-Gendered	Gold	22-26 AWG	Crimp	Active	ROHS3 Compliant	Cut Tape (CT)
0008650122	Molex	KK Trifurcon 7258	Non-Gendered	Gold	22-26 AWG	Crimp	Active	ROHS3 Compliant	Bulk
0503728000	Molex	Mi II 50372	Socket	Tin	22-26 AWG	Crimp	Active	ROHS3 Compliant	Cut Tape (CT)

Engineering Selection Recommendations

Primary Substitute (Direct Equivalent): The 75691-004LF is the recommended direct substitute. It maintains socket contact configuration, gold finish, and 22-26 AWG wire gauge compatibility while offering active product status and RoHS compliance. This part provides the closest functional and mechanical equivalence to the obsolete 75691-004.

Secondary Substitutes (Cross-Manufacturer, Gold Finish): Molex parts 0008550123, 0008550137, 0008580125, 0008650110, 0008650121, and 0008650122 are functionally equivalent alternatives with gold contact finish. These non-gendered contacts provide electrical compatibility with 22-26 AWG crimp termination. All are ROHS3 compliant with active product status, ensuring long-term supply chain availability.

Alternative Substitute (Tin Finish): Parts 0008500111 and 0503728000 offer tin contact finish as cost-effective alternatives. The 0503728000 maintains socket configuration, while 0008500111 uses non-gendered contacts. Both support 22-26 AWG crimp termination and are ROHS3 compliant. Tin finish is suitable for applications where gold plating is not electrically required.

Compliance Consideration: All substitute parts are ROHS3 compliant, addressing the RoHS non-compliance status of the original 75691-004. This compliance upgrade is beneficial for new designs and regulated applications.

Frequently Asked Questions (FAQ)

Q: Can I use a non-gendered contact substitute in place of the socket contact 75691-004? A: Non-gendered contacts from Molex (0008550123, 0008550137, 0008580125, 0008650110, 0008650121, 0008650122) are functionally compatible for crimp termination with 22-26 AWG wire. However, verify mechanical fit within your connector housing, as non-gendered contacts may have different insertion profiles than socket-specific designs.

Q: What is the difference between gold and tin contact finishes for this application? A: Both finishes support 22-26 AWG crimp termination and MSL 1 moisture sensitivity. Gold finish (0.76µm or 30.0µin typical) provides superior corrosion resistance and is preferred for high-reliability applications. Tin finish (0.90µm or 35.4µin) is suitable for standard industrial applications and offers cost savings.

Q: Is the 75691-004LF a direct drop-in replacement? A: The 75691-004LF maintains identical socket contact configuration, gold finish, wire gauge, and termination method as the 75691-004. It is the closest equivalent and is recommended for direct substitution. Verify packaging requirements (Bulk format) match your assembly process.

Q: Why are there multiple Molex part numbers with similar specifications? A: Molex offers variations across different series (KK 2578, KK Trifurcon 7258, Mi II 50372) and packaging formats (Tape & Reel, Cut Tape, Bulk). These variations accommodate different manufacturing processes and supply chain requirements while maintaining electrical and mechanical compatibility with 22-26 AWG crimp termination.

Q: Are all substitute parts RoHS compliant? A: The 75691-004LF and all Molex substitutes are RoHS compliant (RoHS Compliant or ROHS3 Compliant status). The original 75691-004 is RoHS non-compliant. Substitution provides compliance upgrade for regulated applications.

Q: What packaging options are available for high-volume production? A: Bulk packaging is available in 75691-004LF (Amphenol ICC) and 0008650122 (Molex). Tape & Reel packaging is available in multiple Molex parts (0008500111, 0008550123, 0008550137, 0008580125, 0008650110). Cut Tape packaging is available in 0008560123, 0008650121, and 0503728000. Select packaging based on your assembly equipment and volume requirements.

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