Amphenol ICC 76383-409 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 76383-409 is a shrouded right-angle rectangular connector header designed for through-hole mounting in board-to-cable/wire applications. This 18-position, 2-row connector with 0.100" (2.54mm) pitch operates within the Dubox™ series and features solder termination with friction lock fastening. The part is currently classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and component sourcing.

Substiute Parts

76383-409

Amphenol ICC (FCI)In Stock: 110576383-409 Datasheet

Current PartRFQ

76383-409LF

Amphenol ICC (FCI)In Stock: 90276383-409LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 76383-409LF serves as a direct functional substitute for the 76383-409 based on the following critical parameters that determine substitutability:

• Connector configuration: Both parts maintain identical 18-position, 2-row header architecture
• Pitch specifications: Mating pitch and row spacing remain constant at 0.100" (2.54mm)
• Physical mounting: Both employ through-hole, right-angle mounting with shrouded 2-wall design
• Contact geometry: Identical contact shape (square), material (phosphor bronze), and mating/post lengths
• Termination method: Both use solder termination with friction lock fastening
• Insulation properties: Matching polyester glass-filled insulation with UL94 V-0 flammability rating

The primary distinction between these parts lies in product status, compliance certifications, and contact finish specifications rather than functional connector architecture.

Parameter Comparison

Engineering Selection Recommendations

The 76383-409LF is the direct active-production equivalent for the obsolete 76383-409. Selection between these parts is determined by regulatory and compliance requirements:

Use 76383-409LF when:

• RoHS compliance is required for new designs or procurement
• Active product support and long-term availability are necessary
• Operating temperature range of -40°C to 125°C is acceptable
• 3A current rating meets application requirements

Use 76383-409 when:

• Legacy designs require exact historical component matching
• RoHS non-compliance is acceptable for the application
• Existing inventory of the original part is available

The transition from tin-lead to tin contact finish and the reduction in contact finish thickness from 150.0µin to 78.7µin represent manufacturing updates aligned with RoHS compliance. These changes do not affect the mechanical or electrical compatibility of the connector header within standard board-to-cable/wire applications.

Frequently Asked Questions (FAQ)

Q: Are the 76383-409 and 76383-409LF mechanically interchangeable?

A: Yes. Both connectors maintain identical physical dimensions, pitch specifications (0.100" mating and row spacing), mounting configuration (through-hole right-angle), and shrouding design (2-wall). They are direct mechanical substitutes.

Q: What is the significance of the "LF" suffix in the 76383-409LF part number?

A: The "LF" designation indicates lead-free contact finish (tin instead of tin-lead), reflecting RoHS compliance. This is the primary distinction between the two part numbers.

Q: Can I use the 76383-409LF as a replacement in existing designs originally specified with 76383-409?

A: Yes, provided that RoHS compliance is acceptable for your application. The connector maintains all critical electrical and mechanical parameters. The contact finish change does not affect performance in standard applications.

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

A: The 76383-409 features 150.0µin (3.81µm) tin-lead finish, while the 76383-409LF has 78.7µin (2.00µm) tin finish. Both thicknesses are within acceptable ranges for connector reliability and do not impact functional compatibility.

Q: Is the 76383-409 still available for purchase?

A: The 76383-409 is classified as obsolete. The 76383-409LF is the active production equivalent and is the recommended choice for new procurement and design work.

Q: What packaging is available for the 76383-409LF?

A: The 76383-409LF is supplied in tube packaging, suitable for automated assembly and standard component handling.

Q: Are there any temperature or current limitations I should consider?

A: The 76383-409LF is rated for -40°C to 125°C operating temperature and 3A current per contact. Verify these specifications meet your application requirements before selection.