Amphenol ICC 76383-321 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 76383-321 is a Dubox™ series rectangular connector header designed for through-hole, right-angle board-to-cable/wire applications. This 42-position connector features a 0.100" (2.54mm) pitch with shrouded 2-wall design and friction lock fastening. The part is currently obsolete, making identification of suitable substitutes essential for ongoing system support and new design implementations.

Substiute Parts

76383-321

Amphenol ICC (FCI)In Stock: 95976383-321 Datasheet

Current PartRFQ

76383-321LF

Amphenol ICC (FCI)In Stock: 87076383-321LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 76383-321 is determined by strict equivalence across the following critical parameters:

• Connector type (Header), contact type (Male Pin), and contact material (Phosphor Bronze)
• Electrical interface: 42 positions, 2 rows, 0.100" (2.54mm) pitch and row spacing
• Physical form factor: Through-hole, right-angle mounting with shrouded 2-wall design
• Termination method: Solder with friction lock fastening
• Insulation specifications: Polyester, glass-filled material with UL94 V-0 flammability rating

The substitute part 76383-321LF maintains full equivalence across all these parameters while offering improved compliance status and active product availability.

Parameter Comparison

Engineering Selection Recommendations

The 76383-321LF is the direct substitute for the obsolete 76383-321. Both parts maintain identical electrical and mechanical interfaces across all critical parameters including connector type, position count, pitch, mounting configuration, and contact specifications.

The 76383-321LF offers significant advantages for new designs and ongoing system support:

• Active product status ensures long-term availability and supply chain continuity
• RoHS compliance aligns with current regulatory requirements and industry standards
• Specified operating temperature range (-40°C ~ 125°C) and current rating (3A) provide documented performance parameters
• REACH affected status indicates compliance with chemical substance regulations

The main part 76383-321 remains suitable for legacy system maintenance where existing inventory is available and RoHS non-compliance is acceptable for the application.

Frequently Asked Questions (FAQ)

Q: Are the 76383-321 and 76383-321LF mechanically interchangeable?

A: Yes. Both parts share identical physical dimensions, mounting type (through-hole, right-angle), shrouding configuration (2-wall), and contact geometry. They are direct mechanical substitutes.

Q: What is the difference between these two part numbers?

A: The primary differences are product status and compliance. The 76383-321LF is an active, RoHS-compliant variant with specified operating temperature and current ratings. The 76383-321 is obsolete and RoHS non-compliant. The contact finish on the post differs: tin-lead (76383-321) versus tin (76383-321LF).

Q: Can I use the 76383-321LF in place of the 76383-321 in existing designs?

A: Yes. The 76383-321LF maintains full electrical and mechanical compatibility. It is suitable for direct substitution in legacy systems and new designs.

Q: What does the "LF" suffix indicate?

A: The "LF" suffix indicates lead-free compliance, reflecting the RoHS-compliant formulation of the part.

Q: Are there any packaging differences?

A: The 76383-321LF is packaged in tubes. Packaging information for the 76383-321 is not specified in the available data.

Q: What is the current rating for the 76383-321?

A: The current rating for the 76383-321 is not specified. The 76383-321LF is rated for 3A per contact.

Q: Which part should I specify for new designs?

A: The 76383-321LF is the appropriate choice for new designs due to its active status, RoHS compliance, and documented performance specifications.