50003-1140E Equivalent & Substitute Parts

Part Overview

The 50003-1140E is a 140-position high-density backplane connector receptacle manufactured by Amphenol ICC (FCI). This through-hole, right-angle mounted connector features female sockets with gold-plated contacts and is designed for PCB applications requiring high-density interconnection. The part is currently classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

50003-1140E

Amphenol ICC (FCI)In Stock: 97650003-1140E Datasheet

Current PartRFQ

50003-1140ELF

Amphenol ICC (FCI)In Stock: 89050003-1140ELF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for the 50003-1140E is determined by strict alignment of the following electrical and mechanical parameters:

• Connector type and style (Receptacle, Female Sockets; High Density)
• Position count and arrangement (140 positions, 4 rows × 35 columns)
• Pitch specification (0.100" / 2.54mm)
• Mounting configuration (Through Hole, Right Angle)
• Termination method (Solder)
• Contact finish and thickness (Gold, 30.0µin)
• Mating guide feature presence

The 50003-1140ELF meets all these criteria and qualifies as a direct substitute. The primary distinction between these parts is product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The 50003-1140ELF is the direct substitute for the obsolete 50003-1140E. Both parts share identical electrical and mechanical specifications, ensuring functional interchangeability in PCB backplane connector applications.

The 50003-1140ELF offers the additional advantage of active product status and RoHS compliance. For new designs and ongoing system support where regulatory compliance is required, the 50003-1140ELF is the appropriate selection. For legacy system maintenance where RoHS non-compliance is acceptable, either part may be used provided electrical and mechanical requirements are met.

Frequently Asked Questions (FAQ)

Q: Can the 50003-1140ELF be used as a direct replacement for the 50003-1140E?

A: Yes. Both parts are identical in connector type, position count, pitch, mounting configuration, and contact specifications. They are functionally interchangeable in all applications where the 50003-1140E was originally specified.

Q: What is the primary difference between these two parts?

A: The 50003-1140ELF is the active production variant with RoHS compliance, while the 50003-1140E is obsolete and RoHS non-compliant. All electrical and mechanical parameters are identical.

Q: Are there any compatibility concerns when substituting the 50003-1140ELF for the 50003-1140E?

A: No compatibility concerns exist. The parts are mechanically and electrically equivalent. PCB layouts, mating connectors, and assembly processes require no modification.

Q: What does the "ELF" suffix indicate in the 50003-1140ELF part number?

A: The ELF suffix designates the RoHS-compliant variant of the base 50003-1140 connector series.

Q: Is the 50003-1140ELF available in the same packaging as the 50003-1140E?

A: Both parts share the same physical form factor and mounting footprint. No packaging differences affect PCB integration or assembly procedures.