Amphenol ICC 50003-1044E High Density Backplane Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 50003-1044E is a 44-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 in a 4-row by 11-column layout with 0.100" (2.54mm) pitch spacing.

The 50003-1044E carries an obsolete product status, which necessitates identification of functionally equivalent alternatives for new designs, repairs, and ongoing system support. The primary substitute maintains identical electrical and mechanical specifications while offering active product status and improved compliance certifications.

Substiute Parts

50003-1044E

Amphenol ICC (FCI)In Stock: 96450003-1044E Datasheet

Current PartRFQ

50003-1044ELF

Amphenol ICC (FCI)In Stock: 79250003-1044ELF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 50003-1044E is determined by strict equivalence across the following critical parameters:

• Connector Type & Style: Must be receptacle with female sockets in high-density configuration
• Position Count & Layout: Exactly 44 positions in 4×11 arrangement
• Pitch & Spacing: 0.100" (2.54mm) pitch maintained
• Mounting & Termination: Through-hole, right-angle, solder termination
• Contact Specifications: Gold finish at 30.0µin thickness with mating guide feature
• Series Designation: HPC™ series compatibility

The substitute part 50003-1044ELF meets all these criteria while offering improved product lifecycle status and RoHS compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The 50003-1044ELF is the direct functional equivalent of the 50003-1044E for all electrical and mechanical applications. Selection between these parts should be based on the following factors:

For New Designs and Production: The 50003-1044ELF is the appropriate choice. It maintains complete electrical and mechanical compatibility with the obsolete 50003-1044E while offering active product status, ensuring long-term availability and supply chain stability. The RoHS compliance certification of the 50003-1044ELF aligns with current regulatory requirements and environmental standards.

For Legacy System Support and Repairs: The 50003-1044E remains functionally interchangeable with the 50003-1044ELF in existing installations. However, transition to the 50003-1044ELF is recommended for any new procurement to avoid future obsolescence issues.

Compliance Considerations: The shift from RoHS non-compliant to RoHS compliant status represents an improvement in material composition and environmental compliance without affecting connector performance or mechanical fit.

Frequently Asked Questions (FAQ)

Q: Are the 50003-1044E and 50003-1044ELF mechanically interchangeable?

A: Yes. Both connectors share identical mounting type (through-hole, right-angle), pitch (0.100"), position count (44), and layout (4×11). They are direct mechanical substitutes with no PCB redesign required.

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

A: The primary differences are product lifecycle status and RoHS compliance. The 50003-1044E is obsolete and RoHS non-compliant, while the 50003-1044ELF is active and RoHS compliant. All electrical and mechanical specifications are identical.

Q: Can I use the 50003-1044ELF as a drop-in replacement for the 50003-1044E?

A: Yes. The 50003-1044ELF is a direct drop-in replacement. No circuit modifications, PCB layout changes, or firmware updates are necessary.

Q: Why should I transition from 50003-1044E to 50003-1044ELF?

A: The 50003-1044E is obsolete, which creates supply chain risk and potential long-term availability issues. The 50003-1044ELF offers active product status, ensuring continued availability and support. Additionally, RoHS compliance meets current environmental and regulatory standards.

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

A: No. Both connectors have identical contact finish (gold, 30.0µin), mating guide features, and electrical specifications. Performance in signal integrity, impedance, and current handling is equivalent.

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

A: Both the 50003-1044E and 50003-1044ELF have a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without special moisture control requirements.