Amphenol ICC 77311-420-12 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 77311-420-12 is a vertical rectangular connector header designed for through-hole board-to-board applications. This 12-position connector operates at a 0.100" (2.54mm) pitch and features male pins with solder termination and push-pull fastening. The part is classified as obsolete, making identification of active equivalent components essential for ongoing design support and procurement continuity.

Substiute Parts

77311-420-12

Amphenol ICC (FCI)In Stock: 113977311-420-12 Datasheet

Current PartRFQ

77311-420-12LF

Amphenol ICC (FCI)In Stock: 116677311-420-12LF Datasheet

DirectRFQ

1-87465-3

TE Connectivity AMP ConnectorsIn Stock: 11521-87465-3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 77311-420-12 is determined by strict alignment with the following core parameters:

• Connector type: Header
• Contact type: Male pin
• Number of positions: 12
• Pitch - mating: 0.100" (2.54mm)
• Number of rows: 1
• Mounting type: Through hole
• Termination: Solder
• Fastening type: Push-pull
• Contact shape: Square
• Insulation material: Thermoplastic or equivalent
• Material flammability rating: UL94 V-0

Two substitute parts meet these criteria: the Amphenol ICC 77311-420-12LF (direct manufacturer equivalent with RoHS compliance upgrade) and the TE Connectivity 1-87465-3 (functionally equivalent from an alternative manufacturer).

Parameter Comparison

Engineering Selection Recommendations

The 77311-420-12LF is the primary substitute for the obsolete 77311-420-12. Both parts are manufactured by Amphenol ICC within the BERGSTIK® series and share identical mechanical and electrical specifications. The 77311-420-12LF is currently in active production status with RoHS compliance, addressing regulatory requirements for new designs while maintaining full form, fit, and function compatibility.

The TE Connectivity 1-87465-3 serves as a secondary cross-manufacturer equivalent. This part maintains all critical mechanical parameters and fastening characteristics. Differences in contact finish (gold versus tin) and insulation material composition (polyamide glass-filled versus thermoplastic) do not affect substitution eligibility based on the provided specifications. The 1-87465-3 is RoHS compliant and actively produced.

For applications requiring strict adherence to the original flammability rating specification (UL94 V-0), the 77311-420-12LF is the recommended choice, as the TE Connectivity part does not specify this certification.

Frequently Asked Questions (FAQ)

Q: Can the 77311-420-12LF be used as a direct replacement for the 77311-420-12?

A: Yes. Both parts are manufactured by Amphenol ICC and share identical connector type, contact configuration, pitch, mounting method, and termination. The primary difference is RoHS compliance status and product availability. The 77311-420-12LF is the active production equivalent.

Q: What are the differences between the Amphenol ICC and TE Connectivity substitutes?

A: The 77311-420-12LF and 1-87465-3 differ in contact finish material (tin versus gold), insulation material composition (thermoplastic versus polyamide glass-filled), and manufacturer series designation (BERGSTIK® versus AMPMODU Mod II). Both maintain the same 12-position, 2.54mm pitch, through-hole solder configuration.

Q: Does the contact finish difference affect electrical performance?

A: Contact finish is specified in the provided parameters but does not alter the substitution criteria for this connector category. Both tin and gold finishes are suitable for push-pull header applications at the specified pitch and position count.

Q: Are there packaging differences between these parts?

A: Yes. The 77311-420-12 was supplied in standard packaging (not specified), the 77311-420-12LF is supplied in bulk packaging, and the 1-87465-3 is supplied in tray packaging. Packaging does not affect electrical or mechanical compatibility.

Q: Which substitute should be selected for new designs?

A: For new designs, either the 77311-420-12LF or 1-87465-3 is acceptable based on the provided specifications. If UL94 V-0 flammability certification is a design requirement, the 77311-420-12LF is the specified choice. Both parts are RoHS compliant and actively produced.