Amphenol ICC 50003-1076E High Density Backplane Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 50003-1076E is a 76-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-mounted applications requiring high-density interconnection in a 4-row by 19-column layout with 0.100" (2.54mm) pitch spacing.

The 50003-1076E is currently classified as obsolete. Identifying suitable substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production or field replacement requirements.

Substiute Parts

50003-1076E

Amphenol ICC (FCI)In Stock: 86350003-1076E Datasheet

Current PartRFQ

50003-1076ELF

Amphenol ICC (FCI)In Stock: 109650003-1076ELF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 50003-1076E is determined by strict alignment with the following electrical and mechanical parameters:

• Connector Type & Style: Must be receptacle with female sockets in high-density configuration
• Position Count & Layout: Must maintain 76 positions in 4-row by 19-column arrangement
• Pitch Spacing: Must conform to 0.100" (2.54mm) pitch
• Mounting & Termination: Must support through-hole, right-angle mounting with solder termination
• Contact Specifications: Must feature gold-plated contacts with equivalent finish thickness
• Series Compatibility: Must belong to the HPC™ series or equivalent high-density backplane connector family

The substitute part identified below meets all these criteria while offering improved product status and compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The 50003-1076ELF is the direct substitute for the obsolete 50003-1076E. Both connectors are manufactured by Amphenol ICC and share identical electrical and mechanical specifications across all critical parameters: 76-position high-density configuration, 0.100" pitch, 4×19 layout, through-hole right-angle mounting, and gold-plated contact finish.

The primary distinction between these parts is product lifecycle status and regulatory compliance. The 50003-1076E is obsolete and does not meet RoHS requirements. The 50003-1076ELF is an active product that maintains full RoHS compliance while preserving complete functional and dimensional compatibility.

For new designs, field replacements, or production continuity, the 50003-1076ELF is the appropriate selection. Both parts share the same base product number (50003) and series designation (HPC™), confirming their interchangeability within the Amphenol ICC connector portfolio.

Frequently Asked Questions (FAQ)

Q: Are the 50003-1076E and 50003-1076ELF mechanically interchangeable?

A: Yes. Both connectors feature identical mounting configurations (through-hole, right-angle), PCB footprints (4 rows × 19 columns at 0.100" pitch), and contact specifications (76 female sockets with gold plating). They are direct mechanical substitutes.

Q: What does the "LF" suffix in 50003-1076ELF indicate?

A: The "LF" designation indicates lead-free and RoHS-compliant construction. This is the primary differentiator from the 50003-1076E, which is RoHS non-compliant.

Q: Can I use the 50003-1076ELF as a replacement for the 50003-1076E in existing assemblies?

A: Yes. The 50003-1076ELF is a direct functional and dimensional replacement. No design modifications or PCB layout changes are required.

Q: Why is the 50003-1076E classified as obsolete?

A: The 50003-1076E has been superseded by the 50003-1076ELF, which offers improved regulatory compliance (RoHS) while maintaining identical performance characteristics. Amphenol ICC has transitioned production to the compliant variant.

Q: Are there any electrical performance differences between these two connectors?

A: No. Both connectors share identical electrical specifications. All differences are related to material composition (lead-free vs. leaded) and regulatory status, not electrical performance.

Q: What is the current availability of these parts?

A: The 50003-1076E has 771 pieces in stock as new original inventory. The 50003-1076ELF has 1022 pieces in stock as new original inventory. The 50003-1076ELF is the active product and represents the recommended selection for ongoing procurement.