50003-1144E Equivalent & Substitute Parts

Part Overview

The 50003-1144E is a 144-position high-density backplane connector receptacle manufactured by Amphenol ICC (FCI). This component is a female socket connector with through-hole, right-angle mounting designed for PCB applications. The part is currently classified as obsolete, which necessitates identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability for new production and field replacements.

Substiute Parts

50003-1144E

Amphenol ICC (FCI)In Stock: 120950003-1144E Datasheet

Current PartRFQ

50003-1144ELF

Amphenol ICC (FCI)In Stock: 104450003-1144ELF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 50003-1144E is determined by strict equivalence across the following critical parameters:

• Connector Type & Style: Must be receptacle with female sockets in high-density configuration (HDC, HDI, HPC)
• Position Count & Layout: Exactly 144 positions in 4×36 row-column arrangement
• Pitch & Spacing: 0.100" (2.54mm) pitch maintained
• Mounting & Termination: Through-hole, right-angle orientation with solder termination
• Contact Specifications: Gold finish at 30.0µin thickness
• Series Compatibility: HPC™ series designation

The 50003-1144ELF meets all these criteria as a direct functional equivalent. The primary distinction is product status: the original part is obsolete, while the substitute is active in production.

Parameter Comparison

Engineering Selection Recommendations

The 50003-1144ELF is the direct equivalent for the obsolete 50003-1144E. Both parts share identical electrical and mechanical specifications, including connector geometry, contact configuration, pitch, and termination method. The substitute part is currently in active production status, ensuring supply chain continuity.

A significant distinction exists in regulatory compliance: the 50003-1144ELF carries RoHS compliance certification, while the original 50003-1144E is RoHS non-compliant. For applications subject to RoHS requirements or environmental regulations, the 50003-1144ELF is the appropriate selection. For legacy systems or applications without RoHS mandates, both parts remain functionally interchangeable.

Frequently Asked Questions (FAQ)

Q: Can the 50003-1144ELF be used as a direct replacement for the 50003-1144E?

A: Yes. Both parts are identical in connector type, position count, pitch, mounting configuration, and contact specifications. The 50003-1144ELF is the active production equivalent.

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

A: The primary differences are product status and RoHS compliance. The 50003-1144E is obsolete and RoHS non-compliant. The 50003-1144ELF is active in production and RoHS compliant. All electrical and mechanical parameters are equivalent.

Q: Are there any compatibility concerns when substituting the 50003-1144ELF for the 50003-1144E?

A: No compatibility concerns exist. The parts are mechanically and electrically identical. PCB footprints, mating connector requirements, and signal integrity characteristics remain unchanged.

Q: Does the RoHS compliance of the 50003-1144ELF affect performance?

A: RoHS compliance relates to material composition and environmental regulations, not electrical performance. The 50003-1144ELF maintains identical electrical characteristics and contact specifications as the original part.

Q: What is the inventory status for these parts?

A: The 50003-1144E has 1129 pieces in stock as new original inventory. The 50003-1144ELF has 1015 pieces in stock as new original inventory. Both are available for immediate procurement.