Amphenol ICC 71920-331 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 71920-331 is a 31-position receptacle connector with 0.100" (2.54mm) pitch, designed for board-to-board applications using through-hole solder termination. This connector features gold-plated mating contacts, tin-plated posts, and a push-pull fastening mechanism. The part is classified as obsolete, making identification of suitable substitutes necessary for ongoing design support and procurement planning.

Substiute Parts

71920-331

Amphenol ICC (FCI)In Stock: 115371920-331 Datasheet

Current PartRFQ

71920-331LF

Amphenol ICC (FCI)In Stock: 92771920-331LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 71920-331LF qualifies as a direct substitute based on matching all critical electrical and mechanical parameters that define connector compatibility:

• Connector configuration: Identical 31-position receptacle with 0.100" (2.54mm) pitch
• Contact specifications: Female socket contacts with matching gold mating finish (30.0µin) and tin post finish (78.7µin)
• Mounting and termination: Through-hole solder termination with push-pull fastening
• Physical dimensions: Matching insulation height (0.335"), contact length (0.122"), and contact shape (square)
• Material properties: Identical phosphor bronze contact material, thermoplastic glass-filled insulation, and UL94 V-0 flammability rating
• Series compatibility: Both parts belong to the Dubox™ series

The primary distinction is product status and regulatory compliance, not functional or mechanical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The 71920-331LF is the appropriate substitute for the obsolete 71920-331. Both parts are functionally and mechanically identical across all specified parameters. The 71920-331LF offers the advantage of active product status, ensuring continued availability and manufacturing support.

For applications subject to RoHS compliance requirements, the 71920-331LF is the required choice, as it meets RoHS standards while the original 71920-331 does not. The 71920-331LF is also REACH-affected, indicating compliance with current regulatory frameworks for restricted substances.

Both connectors are suitable for automotive, general purpose, industrial, and telecommunications applications. The through-hole solder termination and push-pull fastening mechanism remain consistent between parts, ensuring compatibility with existing PCB designs and mating connectors.

Frequently Asked Questions (FAQ)

Q: Can the 71920-331LF be used as a direct replacement for the 71920-331 in existing designs?

A: Yes. The 71920-331LF is mechanically and electrically identical to the 71920-331 across all specified parameters, including connector configuration, contact specifications, mounting type, and termination method. No design modifications are required.

Q: What is the difference between these two parts?

A: The primary differences are product status and regulatory compliance. The 71920-331 is obsolete and RoHS non-compliant, while the 71920-331LF is an active product that meets RoHS and REACH requirements. All functional and mechanical characteristics are identical.

Q: Are there packaging differences between the 71920-331 and 71920-331LF?

A: The 71920-331LF is supplied in tube packaging, while packaging information for the 71920-331 is not specified. This is a procurement consideration only and does not affect connector performance or compatibility.

Q: Which part should be specified for new designs?

A: The 71920-331LF should be specified for all new designs. It provides active product support, regulatory compliance, and identical performance to the obsolete 71920-331.

Q: Are these connectors compatible with existing mating plugs?

A: Yes. Both the 71920-331 and 71920-331LF are 31-position receptacles with 0.100" (2.54mm) pitch and identical contact specifications. They are compatible with any mating plug designed for this connector series.