Amphenol ICC 51771-007 Backplane Connector Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 51771-007 is a 34-position receptacle connector featuring female sockets and blade sockets, designed for board edge, through-hole, right-angle mounting in blade power applications. This connector is part of the PwrBlade® series and provides a contact layout of 24 signal and 10 power positions with gold-plated contacts rated for -20°C to 105°C operation.

The 51771-007 carries an obsolete product status, making identification of active equivalent parts essential for ongoing procurement and system maintenance. The substitute part 51771-007LF maintains identical electrical and mechanical specifications while offering active product status and improved compliance posture.

Substiute Parts

51771-007

Amphenol ICC (FCI)In Stock: 75651771-007 Datasheet

Current PartRFQ

51771-007LF

Amphenol ICC (FCI)In Stock: 97851771-007LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 51771-007LF qualifies as a direct substitute for the 51771-007 based on strict equivalence across all critical electrical and mechanical parameters:

Matching Parameters:

• Connector type, style, and configuration (Receptacle, Female Sockets and Blade Sockets)
• Position count and arrangement (34 positions, 4 rows)
• Pitch and spacing (0.100" / 2.54mm)
• Mounting method (Board Edge, Through Hole, Right Angle)
• Contact layout distribution (24 Signal, 10 Power)
• Contact finish specification and thickness (Gold or Gold, GXT™; 30.0µin)
• Physical color and material properties (Black, UL94 V-0)
• Operating temperature envelope (-20°C to 105°C)
• Moisture sensitivity classification (MSL 1)

The substitution is valid for all applications where the 51771-007 was originally specified, with the added benefit of active product status for the 51771-007LF variant.

Parameter Comparison

Engineering Selection Recommendations

The 51771-007LF is the appropriate selection for new designs and ongoing procurement due to its active product status. The obsolete designation of the 51771-007 indicates discontinued manufacturing and limited future availability.

For systems currently deployed with the 51771-007, the 51771-007LF provides full functional and mechanical compatibility. The improved RoHS compliance status of the 51771-007LF aligns with current environmental and regulatory standards, offering an advantage for applications subject to RoHS requirements.

Both parts maintain identical electrical performance characteristics, contact specifications, and thermal operating ranges. Selection between these parts should be based on product lifecycle requirements and compliance mandates rather than technical performance differentiation.

Frequently Asked Questions (FAQ)

Q: Can the 51771-007LF directly replace the 51771-007 in existing assemblies?

A: Yes. The 51771-007LF is mechanically and electrically identical to the 51771-007 across all specified parameters. Board-level compatibility is maintained for through-hole, right-angle mounting configurations. No design modifications are required.

Q: What is the significance of the "LF" suffix in the part number?

A: The "LF" designation indicates lead-free termination and RoHS compliance. This reflects the manufacturing process and material composition rather than functional or mechanical changes to the connector itself.

Q: Are there packaging differences between these parts?

A: The 51771-007LF is supplied in Tray packaging. Packaging specifications for the 51771-007 were not provided. Verify packaging requirements for your procurement and handling processes.

Q: Why is the 51771-007 listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The 51771-007LF represents the active equivalent in the product line and is the recommended part for all new procurement.

Q: Do both parts support the same contact layout and signal distribution?

A: Yes. Both parts maintain identical contact layout specifications: 24 signal positions and 10 power positions within the 34-position configuration.

Q: Are there any thermal or environmental performance differences?

A: No. Both parts operate across the identical temperature range (-20°C to 105°C) and carry the same UL94 V-0 flammability rating and MSL 1 moisture sensitivity classification.