Amphenol ICC 51672-001 Backplane Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 51672-001 is a 44-position backplane connector header featuring male pins and blades in a right-angle, board-edge, through-hole configuration. This connector is part of the PwrBlade® series and combines 36 signal contacts with 8 power contacts in a 4-row layout with 0.100" (2.54mm) pitch spacing. The part is currently classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

51672-001

Amphenol ICC (FCI)In Stock: 82251672-001 Datasheet

Current PartRFQ

51672-001LF

Amphenol ICC (FCI)In Stock: 78051672-001LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 51672-001 is determined by strict equivalence across the following critical parameters:

• Connector Type & Style: Header with male pins and blades, blade power configuration
• Position Count & Layout: 44 total positions with 43 loaded, maintaining 36 signal and 8 power contact distribution
• Pitch & Row Configuration: 0.100" (2.54mm) pitch with 4-row arrangement
• Mounting & Termination: Board edge, through-hole, right-angle orientation with solder termination
• Contact Specifications: Gold or Gold GXT™ finish at 30.0µin (0.76µm) thickness
• Environmental Ratings: UL94 V-0 flammability, -20°C ~ 105°C operating range, MSL 1

The substitute part 51672-001LF maintains complete electrical and mechanical compatibility with the original 51672-001 across all specified parameters. The primary distinction is product status and RoHS compliance.

Parameter Comparison

Engineering Selection Recommendations

The 51672-001LF is the direct functional equivalent of the 51672-001 and is suitable for all applications requiring the 51672-001 specification. Selection between these parts should be based on the following criteria:

For New Designs and Ongoing Production: The 51672-001LF is the preferred choice. This part carries active product status from Amphenol ICC (FCI) and meets RoHS compliance requirements, making it the standard selection for current manufacturing and long-term supply chain stability.

For Legacy System Support: The 51672-001 remains available in inventory (712 pcs) for applications where RoHS non-compliant components are acceptable or required for backward compatibility with existing assemblies.

Both parts share identical electrical and mechanical specifications, including connector type, position count, pitch, mounting configuration, contact layout, finish specifications, and environmental ratings. The transition from 51672-001 to 51672-001LF represents a compliance and lifecycle update rather than a functional change.

Frequently Asked Questions (FAQ)

Q: Are the 51672-001 and 51672-001LF electrically and mechanically interchangeable?

A: Yes. Both parts are identical in connector type, position count (44 positions, 43 loaded), pitch (0.100"), row configuration (4 rows), contact layout (36 signal, 8 power), mounting style (board edge, through-hole, right-angle), and contact specifications (gold finish, 30.0µin thickness). They are direct functional equivalents.

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

A: The 51672-001LF is the active production variant with RoHS compliance, while the 51672-001 is classified as obsolete and is RoHS non-compliant. Both maintain identical electrical and mechanical performance.

Q: Can I use 51672-001LF as a replacement for 51672-001 in existing designs?

A: Yes. The 51672-001LF is a direct substitute for the 51672-001 across all electrical and mechanical parameters. No design modifications are required.

Q: What packaging is available for the substitute part?

A: The 51672-001LF is supplied in tray packaging. The original 51672-001 packaging specification is not detailed in the available documentation.

Q: Are there any temperature or environmental limitations I should consider?

A: Both parts operate across the same temperature range (-20°C ~ 105°C) and carry identical environmental ratings (UL94 V-0 flammability, MSL 1 with unlimited moisture sensitivity). No environmental limitations differ between the two parts.

Q: What is the contact finish specification for these connectors?

A: Both parts feature gold or gold GXT™ contact finish with a thickness of 30.0µin (0.76µm), ensuring consistent electrical performance and corrosion resistance.