Amphenol ICC 50003-1148E High Density Backplane Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 50003-1148E is a 148-position high-density backplane connector featuring female sockets in a through-hole, right-angle configuration. This connector is part of the HPC™ series and is designed for PCB-mounted applications requiring high-density interconnection. The part is currently listed as obsolete, making identification of active equivalent parts essential for ongoing system support and new design implementations.

Substiute Parts

50003-1148E

Amphenol ICC (FCI)In Stock: 113150003-1148E Datasheet

Current PartRFQ

50003-1148ELF

Amphenol ICC (FCI)In Stock: 81450003-1148ELF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 50003-1148E is determined by strict equivalence across the following parameters:

• Position Count & Configuration: 148 positions in 4×37 arrangement
• Connector Type & Style: Receptacle with female sockets, high-density format
• Pitch & Spacing: 0.100" (2.54mm) pitch
• Mounting & Termination: Through-hole, right-angle, solder termination
• Contact System: Gold-plated contacts with mating guide feature
• Series Compatibility: HPC™ series designation

The substitute part 50003-1148ELF maintains identical electrical and mechanical specifications while differing in product status and regulatory compliance. Both parts are manufactured by Amphenol ICC and share the same base product number (50003), confirming functional interchangeability.

Parameter Comparison

Engineering Selection Recommendations

The 50003-1148ELF is the direct active equivalent for the obsolete 50003-1148E. Selection between these parts is determined by regulatory and compliance requirements:

Use 50003-1148ELF when:

• RoHS compliance is required for new designs or system updates
• Active product support and availability are priorities
• Current manufacturing standards must be met

Use 50003-1148E when:

• Legacy system maintenance requires exact original part matching
• Existing inventory must be consumed
• RoHS non-compliance is acceptable for the application

Both parts are electrically and mechanically identical, with identical MSL ratings and export classifications. The primary distinction is product lifecycle status and lead-free/RoHS compliance.

Frequently Asked Questions (FAQ)

Q: Are the 50003-1148E and 50003-1148ELF mechanically interchangeable?

A: Yes. Both parts share identical dimensions, pitch, mounting configuration, and contact layout. PCB footprints and mating interfaces are identical.

Q: What does the "LF" suffix in 50003-1148ELF indicate?

A: The "LF" designation indicates lead-free construction and RoHS compliance. The 50003-1148E does not carry this designation and is RoHS non-compliant.

Q: Can I use the 50003-1148ELF as a direct replacement in existing assemblies designed for the 50003-1148E?

A: Yes. The parts are functionally equivalent with no design modifications required. The connector type, position count, pitch, mounting method, and contact system are identical.

Q: Why is the 50003-1148E listed as obsolete?

A: The obsolescence reflects the industry transition to RoHS-compliant components. The 50003-1148ELF represents the current active product line for this connector configuration.

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

A: No. Both parts share identical contact finish specifications, current ratings, and electrical characteristics. Performance is equivalent.

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

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: How do I verify compatibility with my existing mating connectors?

A: Verify that your mating connector is designed for the HPC™ series, 148-position, 0.100" pitch, right-angle configuration. Both the 50003-1148E and 50003-1148ELF use identical contact geometry and mating interfaces.