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

Part Overview

The Amphenol ICC 50003-1128H 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 utilizes a 0.100" (2.54mm) pitch with a 4-row by 32-column layout. The part is currently classified as obsolete, which necessitates identification of active equivalent alternatives to maintain design continuity and ensure ongoing component availability for production and maintenance applications.

Substiute Parts

50003-1128H

Amphenol ICC (FCI)In Stock: 95050003-1128H Datasheet

Current PartRFQ

50003-1128HLF

Amphenol ICC (FCI)In Stock: 92650003-1128HLF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

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

• Connector Type & Style: Receptacle with female sockets in high-density configuration
• Position Count & Layout: 128 positions arranged in 4 rows × 32 columns
• Pitch & Spacing: 0.100" (2.54mm) pitch
• Mounting Configuration: Through-hole, right-angle orientation
• Termination Method: Solder termination
• Contact Properties: Gold finish at 30.0µin (0.76µm) thickness
• Mechanical Features: Mating guide inclusion

The substitute part 50003-1128HLF maintains identical electrical and mechanical specifications to the main part while offering active product status and improved compliance characteristics. The substitution is valid based on complete parameter alignment across all specified dimensions.

Parameter Comparison

Engineering Selection Recommendations

The 50003-1128HLF serves as the direct functional equivalent to the obsolete 50003-1128H. Both parts maintain identical electrical and mechanical specifications across all critical parameters including position count, pitch, mounting configuration, and contact properties.

The primary distinction between these parts is product lifecycle status and regulatory compliance. The 50003-1128H is classified as obsolete, indicating discontinued manufacturing and limited availability. The 50003-1128HLF maintains active product status with current manufacturing support and inventory availability.

The 50003-1128HLF additionally provides RoHS compliance, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution. This compliance status aligns with modern procurement standards and regulatory frameworks applicable to backplane connector applications.

For new designs or component replenishment, the 50003-1128HLF is the appropriate selection. For legacy system maintenance requiring exact part matching, the 50003-1128H remains functionally equivalent where existing inventory permits.

Frequently Asked Questions (FAQ)

Q: Are the 50003-1128H and 50003-1128HLF mechanically interchangeable?

A: Yes. Both parts share identical mechanical specifications including mounting type (through-hole, right-angle), position count (128), pitch (0.100"), and row/column configuration (4×32). Physical dimensions and PCB footprints are equivalent.

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

A: Yes. The 50003-1128HLF maintains complete electrical and mechanical compatibility with the 50003-1128H. All contact properties, termination methods, and connector features are identical.

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

A: The "LF" designation indicates lead-free and RoHS-compliant manufacturing. This reflects the material composition and environmental compliance of the substitute part.

Q: Why is the 50003-1128H classified as obsolete?

A: Obsolete status indicates the part has been discontinued by the manufacturer. The 50003-1128HLF represents the active equivalent within the HPC™ series.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts maintain identical electrical specifications. All parameters including contact finish, finish thickness, and connector type are equivalent.

Q: What inventory considerations apply to these parts?

A: The 50003-1128H has limited remaining inventory (877 pcs). The 50003-1128HLF maintains active inventory status (828 pcs) with ongoing manufacturing availability.