Amphenol ICC 77313-427-40LF Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 77313-427-40LF is an active rectangular connector header designed for through-hole mounting applications. This 40-position, 2-row connector operates across a wide temperature range (-65°C to 130°C) and is commonly used in board-to-board and cable interconnect applications. Finding equivalent or substitute parts may be necessary due to inventory constraints, lead time requirements, or specific application compatibility needs.

Substiute Parts

77313-427-40LF

Amphenol ICC (FCI)In Stock: 86577313-427-40LF Datasheet

Current PartRFQ

2-87227-0

TE Connectivity AMP ConnectorsIn Stock: 8432-87227-0 Datasheet

MFR RecommendedRFQ

M20-9762042

Harwin Inc.In Stock: 3352M20-9762042 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for rectangular connectors in this category is determined by strict alignment of electrical and mechanical parameters. The following criteria establish whether a part qualifies as a direct substitute:

Critical Parameters for Substitution:

• Pitch - Mating: 0.100" (2.54mm) — must match exactly
• Number of Positions: 40 — must match exactly
• Number of Rows: 2 — must match exactly
• Row Spacing - Mating: 0.100" (2.54mm) — must match exactly
• Contact Type: Male Pin — must match exactly
• Mounting Type: Through Hole — must match exactly
• Termination: Solder — must match exactly
• Current Rating: 3A per Contact — must match or exceed
• Material Flammability Rating: UL94 V-0 — must match or exceed
• RoHS Compliance: Required

Acceptable Variations:

• Contact finish material (Tin or Gold)
• Contact finish thickness
• Insulation height (within mechanical tolerance)
• Overall contact length (within mechanical tolerance)
• Operating temperature range (substitute may have narrower range)
• Connector series designation
• Fastening type (Push-Pull acceptable)

Both substitute parts meet these criteria and are classified as manufacturer-recommended equivalents.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active product status and meet UL94 V-0 flammability requirements. Selection between the main part and substitutes should be based on the following considerations:

77313-427-40LF (Amphenol ICC BERGSTIK®): Supports the full operating temperature range of -65°C to 130°C. Use this part when maximum temperature performance is required. Tin contact finish provides standard electrical performance.

2-87227-0 (TE Connectivity AMPMODU Mod II): Operates from -65°C to 105°C. Gold contact finish provides enhanced corrosion resistance and is suitable for applications requiring superior contact reliability. Operating temperature range is narrower than the main part.

M20-9762042 (Harwin Inc. M20): Operates from -40°C to 105°C with cuttable connector design. Brass contact material and polyamide insulation provide alternative material composition. Operating temperature range is the most restricted of the three options.

All parts are RoHS compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, indicating no special storage or handling requirements.

Frequently Asked Questions (FAQ)

Q: Can these parts be used interchangeably in all applications?

A: Direct mechanical and electrical interchangeability is established for the critical parameters: 0.100" (2.54mm) pitch, 40 positions, 2 rows, through-hole mounting, and solder termination. However, operating temperature range differences must be evaluated against specific application requirements. The main part supports -65°C to 130°C, while substitutes are limited to -65°C to 105°C or -40°C to 105°C.

Q: What are the differences in contact finish?

A: The main part features tin contact finish. Both substitutes use gold contact finish. Gold provides enhanced corrosion resistance and is preferred in high-reliability applications. Tin is standard for general-purpose applications. Both finishes are compatible with solder termination.

Q: Are there differences in contact material?

A: The main part and TE Connectivity substitute use phosphor bronze contacts. The Harwin part uses brass contacts. Both materials are suitable for 3A per contact current rating and provide adequate electrical conductivity for standard applications.

Q: What is the significance of the "cuttable" feature on the Harwin part?

A: The M20-9762042 features a cuttable connector design, allowing the header to be separated into smaller segments if required. The main part and TE Connectivity substitute are breakaway designs. This feature does not affect electrical or mechanical compatibility but provides design flexibility for applications requiring custom connector configurations.

Q: How do insulation height variations affect compatibility?

A: The main part and Harwin part both have 0.100" (2.54mm) insulation height. The TE Connectivity part has 0.090" (2.29mm) insulation height. These variations are within acceptable mechanical tolerances for board-to-board and cable interconnect applications and do not affect electrical performance or mating compatibility.

Q: Are all parts RoHS compliant?

A: Yes. The main part and TE Connectivity substitute are RoHS Compliant. The Harwin part is ROHS3 Compliant. Both designations meet current RoHS requirements.