Amphenol ICC 76347-403 Socket Contact Rectangular Connector

Part Overview

The 76347-403 is a socket contact connector from Amphenol ICC's DUBOX™, MezzSelect™, and Basics+ series, designed for 22-30 AWG wire gauge applications with crimp termination. This part is classified as obsolete, making identification of suitable alternatives essential for ongoing design support and procurement continuity. The original specification includes tin-lead contact finish with a thickness of 196.9µin (5.00µm) and operates under unlimited moisture sensitivity conditions (MSL 1).

Substiute Parts

76347-403

Amphenol ICC (FCI)In Stock: 81676347-403 Datasheet

Current PartRFQ

76347-403LF

Amphenol ICC (FCI)In Stock: 1241676347-403LF Datasheet

DirectRFQ

77315-107-36LF

Amphenol ICC (FCI)In Stock: 132477315-107-36LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 76347-403 is determined by the following critical parameters:

• Socket Contact Type: Both substitute parts maintain socket contact functionality
• Wire Gauge Compatibility: 22-30 AWG specification is preserved across all alternatives
• Crimp Termination: Contact termination method remains consistent
• Series Compatibility: Substitutes belong to the same DUBOX™, MezzSelect™, and Basics+ series family
• Base Product Number: All parts share the 76347 base product designation

The 76347-403LF represents a direct functional equivalent with updated RoHS compliance and reduced contact finish thickness (78.7µin / 2.00µm tin finish versus the original tin-lead specification). The 77315-107-36LF, while from the same manufacturer and series, represents a different connector form factor (header configuration with 36 positions and 2.54mm pitch) and is not a direct substitute for socket contact applications requiring the original 76347 series specifications.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the 76347-403, the 76347-403LF is the primary recommended substitute. This part maintains identical socket contact functionality, wire gauge specification (22-30 AWG), and crimp termination while offering active product status and RoHS compliance. The transition from tin-lead to tin contact finish aligns with modern manufacturing standards and regulatory requirements.

The 77315-107-36LF should not be selected as a direct replacement for the 76347-403 due to fundamental differences in connector architecture: it is a header connector with male pin contacts and solder termination, whereas the 76347-403 is a socket contact with crimp termination. These represent different connector families within the Amphenol ICC portfolio and are not interchangeable.

For new designs or procurement requiring RoHS compliance and REACH compliance status, the 76347-403LF is the appropriate selection. For legacy systems where tin-lead contact finish is specifically required, the obsolete 76347-403 may require special procurement arrangements or complete design re-evaluation.

Frequently Asked Questions (FAQ)

Q: Can the 76347-403LF directly replace the 76347-403 in existing assemblies?

A: Yes. Both parts are socket contacts with 22-30 AWG wire gauge and crimp termination. The primary difference is the contact finish material (tin versus tin-lead) and thickness (78.7µin versus 196.9µin). These differences do not affect mechanical or electrical compatibility in standard applications.

Q: What is the significance of the "LF" suffix in the 76347-403LF part number?

A: The "LF" designation indicates lead-free composition, reflecting RoHS compliance. This part uses tin contact finish instead of tin-lead, meeting current environmental and regulatory standards.

Q: Why is the 77315-107-36LF listed as a substitute if it is not compatible?

A: The 77315-107-36LF is listed in the original substitute field but represents a different connector type. It is included in this analysis for completeness but is not suitable for applications requiring socket contacts with crimp termination. Selection of this part would require complete connector redesign.

Q: Are there packaging differences between the main part and the 76347-403LF substitute?

A: Yes. The 76347-403 packaging is not specified in the available data. The 76347-403LF is supplied in Cut Tape (CT) packaging. Packaging format should be confirmed with the supplier based on assembly requirements.

Q: What compliance certifications apply to the 76347-403LF?

A: The 76347-403LF is RoHS Compliant and REACH Affected. The original 76347-403 is RoHS non-compliant and REACH Unaffected. For applications subject to RoHS or REACH regulations, the 76347-403LF is the required selection.