Amphenol ICC 51750-059 Backplane Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 51750-059 is an 18-position receptacle connector featuring female sockets and blade sockets for through-hole PCB mounting. This connector is part of the PwrBlade® series and is designed for backplane applications with a contact layout of 16 signal and 2 power positions. The 51750-059 is currently classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement.

Substiute Parts

51750-059

Amphenol ICC (FCI)In Stock: 110851750-059 Datasheet

Current PartRFQ

51750-059LF

Amphenol ICC (FCI)In Stock: 73951750-059LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 51750-059LF serves as a direct functional equivalent to the 51750-059. Substitution is valid based on the following critical parameters that remain identical between both parts:

• Connector type: Receptacle with female sockets and blade sockets
• Position count: 18 positions
• Pitch specification: 0.100" (2.54mm)
• Row configuration: 4 rows
• Mounting method: Through hole with press-fit termination
• Contact layout: 16 signal, 2 power
• Contact finish and thickness: Gold or Gold, GXT™ at 30.0µin (0.76µm)
• Color: Black
• Flammability rating: UL94 V-0
• Operating temperature range: -20°C ~ 105°C
• Moisture sensitivity level: 1 (Unlimited)

The primary distinction between these parts is product status and RoHS compliance, with the 51750-059LF representing the active production equivalent.

Parameter Comparison

Engineering Selection Recommendations

The 51750-059LF is the recommended selection for new designs and ongoing procurement. This part maintains full electrical and mechanical compatibility with the 51750-059 while offering the following advantages:

• Active product status ensures continued manufacturer support and availability
• RoHS compliance aligns with current regulatory requirements and industry standards
• Tray packaging provides standardized handling and storage for production environments

For existing designs currently using the 51750-059, direct substitution with the 51750-059LF is permissible without circuit modification, as all functional parameters remain unchanged.

Frequently Asked Questions (FAQ)

Q: Can the 51750-059LF be used as a direct replacement for the 51750-059?

A: Yes. All electrical and mechanical parameters are identical, including connector type, position count, pitch, mounting method, contact finish, and operating specifications. The parts are functionally interchangeable.

Q: What is the significance of the "LF" designation in the 51750-059LF part number?

A: The "LF" suffix indicates lead-free construction and RoHS compliance. This represents the active production variant of the base 51750 connector series.

Q: Are there packaging differences between these parts?

A: The 51750-059 packaging is not specified in available documentation. The 51750-059LF is supplied in tray packaging. Confirm packaging requirements with your procurement specifications.

Q: Does the RoHS compliance difference affect electrical performance?

A: No. RoHS compliance relates to material composition and environmental regulations, not electrical or mechanical function. Both parts meet the same UL94 V-0 flammability rating and operating specifications.

Q: What is the current inventory status for these parts?

A: The 51750-059 has 1050 pieces in stock (obsolete status). The 51750-059LF has 722 pieces in stock (active status). Verify current availability with your supplier for procurement planning.