Amphenol ICC 76342-439LF Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 76342-439LF is a 78-position receptacle connector featuring 0.100" (2.54mm) pitch, through-hole solder termination, and tin contact finish. This board-to-board connector is designed for applications in automotive, industrial, telecommunications, and general-purpose environments. The part is currently obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

76342-439LF

Amphenol ICC (FCI)In Stock: 115476342-439LF Datasheet

Current PartRFQ

76342-339LF

Amphenol ICC (FCI)In Stock: 101076342-339LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 76342-439LF is determined by strict equivalence across the following critical parameters:

• Connector Type & Contact Configuration: Must be receptacle with female socket contacts
• Position Count & Arrangement: Must maintain 78 positions in 2-row configuration
• Pitch Specifications: Mating pitch and row spacing must both be 0.100" (2.54mm)
• Mounting & Termination: Through-hole solder termination required
• Mechanical Compatibility: Push-pull fastening type and identical insulation height (0.275")
• Material & Flammability: Thermoplastic glass-filled insulation with UL94 V-0 rating
• Series Compatibility: Dubox™ series designation

The primary variable distinguishing substitute parts within this category is the contact finish specification. Variations in mating contact finish (tin versus gold) and associated finish thickness represent the allowable substitution parameter while maintaining full mechanical and electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The 76342-339LF serves as a direct substitute for the obsolete 76342-439LF. Both connectors maintain identical mechanical dimensions, electrical contact configuration, and mounting specifications. The substitute part is currently in active production status, ensuring availability for replacement and new applications.

The primary distinction between these parts is the mating contact finish: the main part features tin plating at 78.7µin (2.00µm) thickness, while the substitute features gold plating at 30.0µin (0.76µm) thickness. Both finishes are applied to phosphor bronze contacts and provide equivalent mechanical compatibility with mating connectors designed for the Dubox™ series.

The 76342-339LF carries RoHS Compliant and REACH Affected designations, confirming compliance with current environmental and hazardous substance regulations. Both parts maintain UL94 V-0 flammability ratings and identical MSL classification.

Frequently Asked Questions (FAQ)

Q: Can the 76342-339LF directly replace the 76342-439LF in existing applications?

A: Yes. Both connectors share identical mechanical dimensions, position count, pitch specifications, mounting type, and termination method. The connectors are mechanically and electrically interchangeable within the Dubox™ series.

Q: What is the significance of the different contact finishes?

A: The 76342-439LF uses tin plating while the 76342-339LF uses gold plating on mating contacts. Both finishes are applied to the same phosphor bronze base material. Contact finish selection is typically driven by application-specific requirements for corrosion resistance, wear characteristics, or environmental exposure. The gold-plated substitute may offer enhanced performance in high-humidity or corrosive environments.

Q: Are there any compliance differences between these parts?

A: The 76342-339LF includes explicit RoHS Compliant and REACH Affected certifications. Both parts maintain identical UL94 V-0 flammability ratings, ECCN classification (EAR99), and HTSUS codes. The substitute part's active production status ensures ongoing compliance with current regulatory standards.

Q: What packaging is available for the substitute part?

A: The 76342-339LF is supplied in tube packaging, with 993 pieces currently in stock as new original inventory.

Q: Are the post contact finishes identical?

A: Yes. Both the main part and substitute feature tin plating on post contacts at 78.7µin (2.00µm) thickness, ensuring consistent solder joint formation and reliability.