3M 3764-6003 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The 3M 3764-6003 is a through-hole rectangular connector header with 64 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This shrouded, board-to-cable/wire connector features male pins with gold-plated mating contacts and tin-lead plated posts, designed for solder termination with push-pull fastening. The part is currently obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

3764-6003

3MIn Stock: 7993764-6003 Datasheet

Current PartRFQ

71918-064LF

Amphenol ICC (FCI)In Stock: 109871918-064LF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 3M 3764-6003 is determined by strict equivalence across the following critical parameters:

• Connector Configuration: 64-position, 2-row header with 0.100" (2.54mm) mating pitch and 0.100" row spacing
• Contact Architecture: Male pin contacts with square shape
• Mounting and Termination: Through-hole solder termination with push-pull fastening
• Shrouding: 4-wall shrouded design with keying slot and mounting flange
• Electrical Performance: 1A current rating with gold-plated mating contacts
• Environmental Compliance: UL94 V-0 flammability rating

The Amphenol ICC (FCI) 71918-064LF satisfies all critical substitution criteria while offering active product status and improved compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The Amphenol ICC (FCI) 71918-064LF is the direct functional equivalent for the obsolete 3M 3764-6003. Both connectors maintain identical electrical and mechanical specifications across all critical parameters: 64-position configuration, 2.54mm pitch, through-hole solder termination, and push-pull fastening.

The 71918-064LF offers the advantage of active product status, ensuring continued availability and supply chain stability. Additionally, the substitute part achieves RoHS compliance, whereas the original 3M part does not. Both components carry UL94 V-0 flammability certification and MSL 1 moisture sensitivity rating, confirming equivalent environmental performance.

Contact material differences (phosphor bronze in the substitute versus copper alloy in the original) and insulation material variations (thermoplastic glass-filled versus polybutylene terephthalate glass-filled) do not affect functional compatibility, as both formulations meet the same electrical and thermal performance requirements for this connector class.

Frequently Asked Questions (FAQ)

Q: Can the Amphenol ICC 71918-064LF be used as a direct replacement for the 3M 3764-6003 in existing designs?

A: Yes. Both connectors share identical mating pitch (0.100"), row spacing (0.100"), position count (64), contact type (male pin), shrouding configuration (4-wall), and termination method (solder). The connectors are mechanically and electrically interchangeable.

Q: What is the difference between the contact materials used in each connector?

A: The 3M 3764-6003 uses copper alloy contacts, while the Amphenol ICC 71918-064LF uses phosphor bronze contacts. Both materials provide equivalent electrical conductivity and contact reliability for this connector application.

Q: Does the RoHS compliance difference affect substitution suitability?

A: No. RoHS compliance status reflects manufacturing process restrictions but does not alter the connector's functional performance or compatibility. The choice between RoHS-compliant and non-compliant parts depends on end-application regulatory requirements, not on technical interchangeability.

Q: Are the insulation materials functionally equivalent?

A: Yes. The polybutylene terephthalate (PBT) glass-filled insulation in the 3M part and the thermoplastic glass-filled insulation in the Amphenol ICC part both achieve UL94 V-0 flammability rating and support the same operating temperature range (-55°C to 105°C).

Q: What packaging format is the substitute part supplied in?

A: The Amphenol ICC 71918-064LF is supplied in tube packaging, whereas the original 3M part packaging specification is not provided in the technical data.

Q: Are there any contact finish differences that affect performance?

A: Both connectors feature 30.0µin (0.76µm) gold plating on mating contacts. The Amphenol ICC part specifies GXT™ gold plating technology, which represents an enhanced gold plating process. This does not compromise compatibility and may provide improved contact durability.