Amphenol ICC 51752-020 Backplane Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 51752-020 is a 32-position blade power receptacle connector designed for through-hole PCB mounting. This connector features female sockets and blade sockets in a 4-row configuration with 0.100" (2.54mm) pitch, supporting 24 signal and 8 power contacts. The part is classified as obsolete, making identification of active equivalent alternatives essential for ongoing design support and procurement.

Substiute Parts

51752-020

Amphenol ICC (FCI)In Stock: 102251752-020 Datasheet

Current PartRFQ

51752-020LF

Amphenol ICC (FCI)In Stock: 86351752-020LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 51752-020LF qualifies as a direct substitute based on identical electrical and mechanical parameters. Substitution is determined by the following critical parameters:

• Connector type and socket configuration (Receptacle, Female Sockets and Blade Sockets)
• Position count and arrangement (32 positions, 4 rows)
• Contact pitch (0.100" / 2.54mm)
• Mounting method (Through Hole)
• Termination style (Press-Fit, Quick Connect)
• Contact layout distribution (24 Signal, 8 Power)
• Contact finish specification (Gold or Gold, GXT™)
• Operating temperature range (-20°C ~ 105°C)
• Flammability rating (UL94 V-0)

The primary distinction between the main part and substitute is product status and compliance certification, not functional or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The 51752-020LF is the direct active equivalent for the obsolete 51752-020. Both parts share identical electrical and mechanical specifications, ensuring functional interchangeability in PCB designs. The 51752-020LF offers the advantage of active product status and RoHS compliance, making it the preferred selection for new designs and ongoing procurement. The LF designation indicates lead-free termination, aligning with modern environmental and regulatory standards. Packaging is supplied in trays for the active variant.

Frequently Asked Questions (FAQ)

Q: Are the 51752-020 and 51752-020LF mechanically interchangeable? A: Yes. Both connectors share identical mechanical dimensions, mounting type (through-hole), pitch (0.100"), position count (32), and row configuration (4 rows). PCB footprints are identical.

Q: What is the functional difference between these parts? A: There is no functional difference. Both parts provide identical electrical performance with 24 signal and 8 power contact configuration, identical contact finish (Gold or Gold, GXT™), and identical operating temperature range (-20°C ~ 105°C).

Q: Why is the 51752-020 listed as obsolete? A: The 51752-020 is an older production variant. The 51752-020LF represents the current active production part with lead-free termination and RoHS compliance.

Q: What does the "LF" suffix indicate? A: The "LF" suffix denotes lead-free termination, indicating compliance with RoHS directives and modern environmental standards.

Q: Can I use 51752-020LF in designs originally specified for 51752-020? A: Yes. The parts are electrically and mechanically equivalent. The 51752-020LF is the recommended replacement for new designs and ongoing production.

Q: Are there packaging differences between these parts? A: The 51752-020 packaging is not specified in available data. The 51752-020LF is supplied in trays. Confirm packaging requirements with your procurement specifications.

Q: What is the current inventory status? A: The 51752-020 has 942 pieces in stock (obsolete status). The 51752-020LF has 767 pieces in stock (active status).