Amphenol ICC 50003-1168H High Density Backplane Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 50003-1168H is a 168-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 listed as obsolete, making identification of active equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

50003-1168H

Amphenol ICC (FCI)In Stock: 80650003-1168H Datasheet

Current PartRFQ

50003-1168HLF

Amphenol ICC (FCI)In Stock: 79950003-1168HLF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 50003-1168H is determined by strict equivalence across the following critical parameters:

• Connector Type & Style: Receptacle with female sockets in high-density configuration
• Position Count & Arrangement: 168 positions in 4×42 matrix
• Pitch Specification: 0.100" (2.54mm) center-to-center spacing
• Mounting Configuration: Through-hole, right-angle orientation
• Termination Method: Solder attachment to PCB
• Contact Material & Finish: Gold plating at specified thickness
• Series Compatibility: HPC™ series designation

The substitute part 50003-1168HLF maintains identical electrical and mechanical specifications across all these parameters, with the primary distinction being product status and RoHS compliance level.

Parameter Comparison

Engineering Selection Recommendations

The 50003-1168HLF serves as the direct active equivalent to the obsolete 50003-1168H. Selection between these parts is determined by regulatory and supply chain requirements:

Use 50003-1168HLF when:

• RoHS compliance is required for new designs or system updates
• Long-term component availability is necessary
• Current production or procurement cycles are planned

Use 50003-1168H when:

• Legacy system maintenance requires exact original part matching
• Existing inventory stock is available and acceptable for the application
• RoHS non-compliance does not conflict with system requirements

Both parts are electrically and mechanically interchangeable within the HPC™ series backplane connector ecosystem. The substitution is based on identical connector specifications, contact configuration, and mounting characteristics.

Frequently Asked Questions (FAQ)

Q: Are the 50003-1168H and 50003-1168HLF physically interchangeable?

A: Yes. Both connectors share identical dimensions, pitch spacing (0.100"), position count (168), row/column configuration (4×42), mounting type (through-hole right-angle), and contact finish specifications. They are direct mechanical and electrical equivalents.

Q: What is the significance of the "LF" suffix in the 50003-1168HLF part number?

A: The "LF" designation indicates lead-free and RoHS-compliant manufacturing. The 50003-1168HLF meets RoHS requirements, whereas the 50003-1168H does not.

Q: Can I use the 50003-1168HLF as a replacement for the obsolete 50003-1168H in existing designs?

A: Yes. The parts are functionally equivalent across all electrical and mechanical parameters. The 50003-1168HLF is the active production equivalent and is suitable for both new designs and legacy system support.

Q: Are there any differences in contact resistance or signal integrity between these two parts?

A: No differences are specified in the provided technical parameters. Both parts feature identical gold contact finish at 30.0µin (0.76µm) thickness and are rated for the same electrical performance within the HPC™ series specification.

Q: What is the moisture sensitivity level for both connectors?

A: Both the 50003-1168H and 50003-1168HLF are rated at MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: How do I verify compatibility with my existing PCB layout?

A: Verify that your PCB footprint accommodates the through-hole, right-angle mounting configuration with 0.100" (2.54mm) pitch spacing across a 4×42 position matrix. Both parts use identical solder termination and mating guide features.