Amphenol ICC 77317-103-32LF Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 77317-103-32LF is an active-status rectangular connector header designed for through-hole, right-angle board-to-board applications. This 32-position, 2-row connector operates across -65°C to 130°C and supports 3A per contact with gold-plated mating surfaces. Finding equivalent parts becomes necessary when managing supply chain continuity, inventory optimization, or when the primary manufacturer part reaches end-of-life status.

Substiute Parts

77317-103-32LF

Amphenol ICC (FCI)In Stock: 111477317-103-32LF Datasheet

Current PartRFQ

M20-9741642

Harwin Inc.In Stock: 1890M20-9741642 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 equivalent:

• Identical pitch spacing (0.100" / 2.54mm mating pitch)
• Matching position count and row configuration (32 positions, 2 rows)
• Identical row spacing (0.100" / 2.54mm)
• Equivalent or superior current rating (3A per contact minimum)
• Compatible mounting method (through-hole, right-angle orientation)
• Matching contact type (male pin, solder termination)
• Gold-plated mating surface finish
• UL94 V-0 flammability compliance
• RoHS or ROHS3 compliance status

The Harwin Inc. M20-9741642 meets all substitution criteria within these parameters.

Parameter Comparison

Engineering Selection Recommendations

Both the Amphenol ICC 77317-103-32LF and Harwin Inc. M20-9741642 maintain active product status and meet UL94 V-0 flammability requirements. Both are RoHS-compliant (RoHS3 for Harwin), ensuring regulatory alignment for current manufacturing standards.

The primary technical distinction is the operating temperature range. The Amphenol ICC part supports -65°C to 130°C, while the Harwin part operates within -40°C to 105°C. Selection between these parts depends on whether your application requires the extended low-temperature performance of the Amphenol ICC connector. For applications operating within the -40°C to 105°C window, the Harwin M20-9741642 provides full functional equivalence.

Both connectors share identical electrical specifications (3A per contact), mechanical configuration (32 positions, 2 rows, 2.54mm pitch), and solder termination method. The Harwin connector's cuttable header design offers equivalent functionality to the Amphenol breakaway design for board-to-board applications.

Frequently Asked Questions (FAQ)

Q: Can the M20-9741642 directly replace the 77317-103-32LF in all applications?

A: Direct replacement is valid for applications operating within -40°C to 105°C. If your design requires operation below -40°C or above 105°C, the Amphenol ICC part is required to meet temperature specifications.

Q: What is the difference between "Breakaway" and "Cuttable" header designs?

A: Both designs allow individual pin removal or segmentation. Breakaway headers use snap-apart sections, while cuttable headers allow cutting between positions. Both provide equivalent functionality for board-to-board connections.

Q: Are the contact materials compatible between these two parts?

A: The Amphenol ICC part uses phosphor bronze contacts, while the Harwin part uses brass contacts. Both materials support the 3A per contact current rating and are compatible with gold-plated mating surfaces and tin-plated posts.

Q: Do both parts meet current RoHS requirements?

A: Yes. The Amphenol ICC part is RoHS Compliant, and the Harwin part is ROHS3 Compliant. Both meet current regulatory standards for restricted substances.

Q: What is the significance of the 2.54mm pitch specification?

A: The 0.100" (2.54mm) pitch is the standard spacing between contact centers. This specification must match exactly for mechanical and electrical compatibility. Both parts share this identical pitch.

Q: Are there any packaging or inventory considerations?

A: The Amphenol ICC 77317-103-32LF has 1092 pieces in stock, while the Harwin M20-9741642 has 1842 pieces available. Packaging for both is bulk format.