Amphenol ICC 76345-804-72 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 76345-804-72 is a through-hole, right-angle rectangular connector header with 72 positions at 0.100" (2.54mm) pitch. This connector is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing system support and component procurement. The part belongs to the BERGSTIK® series and features unshrouded, board-to-board configuration with solder termination and push-pull fastening.

Substiute Parts

76345-804-72

Amphenol ICC (FCI)In Stock: 87176345-804-72 Datasheet

Current PartRFQ

2372-5121-TG

3MIn Stock: 9662372-5121-TG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 76345-804-72 is determined by strict alignment of the following critical parameters:

• Number of Positions and Rows: 72 positions in 2-row configuration
• Pitch - Mating: 0.100" (2.54mm)
• Row Spacing - Mating: 0.100" (2.54mm)
• Connector Type: Header
• Contact Type: Male Pin
• Mounting Type: Through Hole, Right Angle
• Termination: Solder
• Fastening Type: Push-Pull
• Contact Shape: Square
• Insulation Material: Thermoplastic
• Material Flammability Rating: UL94 V-0

The 3M 2372-5121-TG qualifies as a substitute part because it matches all critical parameters. While minor variations exist in contact length, contact finish thickness, and insulation material composition (glass-filled thermoplastic versus standard thermoplastic), these differences do not prevent functional equivalence in board-to-board applications requiring 72-position, 2.54mm-pitch header connectivity.

Parameter Comparison

Engineering Selection Recommendations

The 3M 2372-5121-TG is the qualified substitute for the obsolete Amphenol ICC 76345-804-72. Selection of this substitute is supported by the following factors:

• Product Status Alignment: The 3M part is active and currently available, addressing the obsolescence of the original Amphenol ICC component.
• Compliance Consistency: Both parts maintain UL94 V-0 flammability rating and identical RoHS non-compliant status, ensuring regulatory consistency in existing designs.
• Functional Equivalence: Critical mating parameters—72 positions, 2-row configuration, 0.100" pitch, and right-angle through-hole mounting—are identical between both parts.
• Certification Parity: Both parts carry MSL 1 (Unlimited) moisture sensitivity classification, indicating equivalent handling and storage requirements.

The 3M 2372-5121-TG supports board-to-board or cable applications, providing design flexibility beyond the original part's board-to-board specification.

Frequently Asked Questions (FAQ)

Q: What makes the 3M 2372-5121-TG a valid substitute for the Amphenol ICC 76345-804-72?

A: Both connectors share identical critical parameters: 72 positions, 2 rows, 0.100" (2.54mm) mating pitch, 0.100" row spacing, square contact shape, through-hole right-angle mounting, solder termination, and push-pull fastening. Both maintain UL94 V-0 flammability rating and MSL 1 moisture sensitivity classification.

Q: Are there dimensional differences between these parts?

A: Minor dimensional variations exist. The 3M part has a contact mating length of 0.230" (5.84mm) compared to 0.240" (6.10mm) for the Amphenol ICC part, and post length of 0.110" (2.79mm) versus 0.126" (3.20mm). Insulation height differs by 0.006" (0.16mm). These variations do not affect functional compatibility in standard board-to-board applications.

Q: What is the difference in contact material between these parts?

A: The Amphenol ICC part uses phosphor bronze contacts, while the 3M part uses copper alloy contacts. Both materials provide adequate electrical conductivity and mechanical durability for 2.54mm-pitch header applications.

Q: Does the glass-filled thermoplastic insulation of the 3M part affect compatibility?

A: No. Glass-filled thermoplastic maintains the same UL94 V-0 flammability rating and provides equivalent insulation performance. The glass-filled composition enhances mechanical strength without affecting electrical or thermal characteristics relevant to connector function.

Q: What is the operating temperature range for these connectors?

A: The Amphenol ICC part does not specify an operating temperature range. The 3M 2372-5121-TG operates from -55°C to 105°C, providing defined thermal performance for applications requiring temperature specification.

Q: Are both parts RoHS compliant?

A: No. Both the Amphenol ICC 76345-804-72 and the 3M 2372-5121-TG are RoHS non-compliant, maintaining regulatory consistency for legacy system designs.

Q: What is the current rating for these connectors?

A: The Amphenol ICC part does not specify a current rating. The 3M 2372-5121-TG is rated for 3A per contact, providing defined electrical performance for applications requiring current specification.