Amphenol ICC 51752-004 Backplane Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 51752-004 is a 42-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 integrated board lock and guide pin features. The part is classified as obsolete, making identification of active equivalent alternatives essential for ongoing production and maintenance applications. The 51752-004LF represents the current active production equivalent with identical electrical and mechanical specifications.

Substiute Parts

51752-004

Amphenol ICC (FCI)In Stock: 84851752-004 Datasheet

Current PartRFQ

51752-004LF

Amphenol ICC (FCI)In Stock: 110451752-004LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 51752-004LF qualifies as a direct functional equivalent to the 51752-004 based on the following critical parameters:

• Connector Configuration: Identical 42-position receptacle with female sockets and blade sockets
• Pitch and Row Layout: Matching 0.100" (2.54mm) pitch with 4-row configuration
• Contact Specifications: Identical contact layout (28 signal, 14 power), finish type (Gold or Gold, GXT™), and finish thickness (30.0µin)
• Mounting and Termination: Through-hole solder termination with identical mechanical interface
• Environmental Ratings: Matching operating temperature range (-20°C to 105°C) and flammability rating (UL94 V-0)
• Moisture Sensitivity: Identical MSL rating of 1 (Unlimited)

The substitution is based on complete electrical and mechanical compatibility within the PwrBlade® series.

Parameter Comparison

Engineering Selection Recommendations

The 51752-004LF is the direct active production equivalent for the obsolete 51752-004. Selection of the 51752-004LF is based on:

• Product Status Alignment: The 51752-004LF maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete 51752-004.
• Regulatory Compliance: The 51752-004LF achieves RoHS compliance, meeting current environmental and regulatory requirements. The original 51752-004 is RoHS non-compliant.
• Electrical and Mechanical Equivalence: All functional parameters—connector configuration, pitch, contact layout, termination method, and environmental ratings—are identical between both parts.
• Certification Consistency: Both parts maintain identical UL94 V-0 flammability ratings and MSL classifications, ensuring equivalent performance in thermal and moisture-sensitive applications.

For new designs and ongoing production requiring the 51752-004 specification, the 51752-004LF is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Can the 51752-004LF be used as a direct replacement for the 51752-004?

A: Yes. The 51752-004LF is electrically and mechanically identical to the 51752-004. Both connectors feature 42 positions, 0.100" pitch, 4-row configuration, identical contact layouts (28 signal, 14 power), and matching environmental ratings. The primary difference is product status and RoHS compliance.

Q: What is the difference between the 51752-004 and 51752-004LF?

A: The 51752-004 is obsolete and RoHS non-compliant. The 51752-004LF is the active production equivalent with RoHS compliance. All electrical and mechanical specifications are identical.

Q: Are there packaging differences between these parts?

A: The 51752-004 is supplied in standard packaging, while the 51752-004LF is supplied in tray packaging. Both are suitable for through-hole PCB assembly.

Q: Does the RoHS compliance of the 51752-004LF affect compatibility?

A: No. RoHS compliance indicates the part meets environmental standards for hazardous substance restrictions. This does not alter electrical or mechanical compatibility. The 51752-004LF is fully compatible with applications designed for the 51752-004.

Q: What is the contact finish specification for both parts?

A: Both the 51752-004 and 51752-004LF feature gold or gold GXT™ contact finish with a thickness of 30.0µin (0.76µm), ensuring equivalent electrical performance and corrosion resistance.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both parts operate across the identical temperature range of -20°C to 105°C and maintain the same UL94 V-0 flammability rating.