Amphenol ICC 50003-1128F High Density Backplane Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 50003-1128F is a 128-position high-density backplane connector featuring female sockets in a through-hole, right-angle configuration. This receptacle connector is part of the HPC™ series and is designed for PCB mounting applications requiring high-density interconnection. The part is currently classified as obsolete, making identification of active equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

50003-1128F

Amphenol ICC (FCI)In Stock: 78250003-1128F Datasheet

Current PartRFQ

50003-1128FLF

Amphenol ICC (FCI)In Stock: 103450003-1128FLF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 50003-1128F is determined by strict equivalence across the following critical parameters:

• Connector Type & Style: Receptacle with female sockets in high-density configuration (HPC™ series)
• Position Count & Layout: 128 positions arranged in 4 rows × 32 columns
• Pitch Specification: 0.100" (2.54mm) center-to-center spacing
• Mounting Configuration: Through-hole, right-angle orientation for PCB mounting
• Termination Method: Solder termination for permanent board attachment
• Contact Properties: Gold-plated finish at specified thickness
• Mechanical Features: Mating guide inclusion

The substitute part 50003-1128FLF maintains identical electrical and mechanical specifications while offering active product status and RoHS compliance, making it a direct functional equivalent for the obsolete 50003-1128F.

Parameter Comparison

Engineering Selection Recommendations

The 50003-1128FLF is a direct substitute for the obsolete 50003-1128F based on complete electrical and mechanical parameter equivalence. The substitute part offers two significant advantages:

Product Status: The 50003-1128FLF maintains active product status with current manufacturing support, ensuring long-term availability and supply chain continuity compared to the obsolete 50003-1128F.

Regulatory Compliance: The 50003-1128FLF is RoHS compliant, meeting current environmental and regulatory requirements. The original 50003-1128F is RoHS non-compliant, which may present compliance challenges in applications subject to RoHS directives.

All other specifications—connector configuration, position count, pitch, mounting type, termination method, contact finish, and mechanical features—are identical between the two parts. Selection of the 50003-1128FLF is appropriate for both replacement applications and new designs requiring this connector specification.

Frequently Asked Questions (FAQ)

Q: Can the 50003-1128FLF be used as a direct replacement for the 50003-1128F in existing designs?

A: Yes. The 50003-1128FLF is electrically and mechanically equivalent to the 50003-1128F. Both parts feature identical 128-position, high-density receptacle configurations with 0.100" pitch, through-hole right-angle mounting, and gold-plated contacts. No design modifications are required for substitution.

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

A: The 50003-1128FLF is the active production equivalent of the obsolete 50003-1128F. The substitute part includes RoHS compliance certification, whereas the original part is RoHS non-compliant. All functional and mechanical specifications remain unchanged.

Q: Are there any packaging or inventory considerations when switching to the 50003-1128FLF?

A: Both parts are supplied with identical packaging specifications. The 50003-1128FLF currently has 1004 pieces in stock, providing adequate availability for production requirements.

Q: Does the RoHS compliance of the 50003-1128FLF affect electrical performance?

A: No. RoHS compliance relates to material composition and environmental standards, not electrical performance. The 50003-1128FLF maintains identical electrical characteristics, contact finish specifications, and performance parameters as the 50003-1128F.

Q: What is the MSL rating for both parts?

A: Both the 50003-1128F and 50003-1128FLF carry an MSL rating of 1 (Unlimited), indicating no moisture sensitivity limitations for storage or handling.