Amphenol ICC 51940-213 Backplane Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 51940-213 is a 36-position receptacle connector featuring female sockets and blade sockets for through-hole PCB mounting in blade power applications. This connector is part of the PwrBlade® series and provides a 4-row configuration with integrated board lock and guide pin features. The main part is currently obsolete, making identification of active equivalent models essential for ongoing design support and procurement.

Substiute Parts

51940-213

Amphenol ICC (FCI)In Stock: 106151940-213 Datasheet

Current PartRFQ

51940-213LF

Amphenol ICC (FCI)In Stock: 114651940-213LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 51940-213LF qualifies as a direct substitute based on identical electrical and mechanical parameters. Substitution is valid when the following criteria are met:

• Connector type: Receptacle, Female Sockets and Blade Sockets
• Position count: 36 positions
• Pitch specification: 0.100" (2.54mm)
• Row configuration: 4 rows
• Mounting method: Through Hole
• Termination type: Solder
• Contact layout: 24 Signal, 12 Power
• Physical features: Board Lock, Guide Pin
• Contact finish: Gold or Gold, GXT™
• Finish thickness: 30.0µin (0.76µm)
• Color: Black
• Operating temperature: -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 51940-213LF is the direct active equivalent of the obsolete 51940-213. Selection of the substitute part is based on:

• Identical electrical and mechanical specifications across all functional parameters
• Active product status ensuring ongoing availability and manufacturer support
• RoHS compliance certification, meeting current regulatory requirements for new designs
• REACH compliance status, satisfying environmental and chemical safety standards
• Equivalent contact finish and flammability ratings maintaining performance characteristics
• Tray packaging format suitable for automated assembly processes

For applications currently using the 51940-213, transition to the 51940-213LF requires no design modifications and maintains full functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 51940-213LF directly replace the 51940-213 in existing designs?

A: Yes. The 51940-213LF is electrically and mechanically identical to the 51940-213. All connector specifications, pin configurations, and physical dimensions are equivalent. No PCB layout or schematic changes are required.

Q: What is the primary reason to transition from 51940-213 to 51940-213LF?

A: The 51940-213 is obsolete and no longer manufactured. The 51940-213LF is the active equivalent with identical specifications and improved compliance certifications.

Q: Are there compliance differences between these parts?

A: Yes. The 51940-213LF is RoHS compliant and REACH affected, while the 51940-213 is RoHS non-compliant. For new designs or applications subject to regulatory requirements, the 51940-213LF is the appropriate selection.

Q: Does packaging differ between these parts?

A: Yes. The 51940-213 is supplied in bulk packaging, while the 51940-213LF is supplied in tray packaging. Tray packaging is standard for automated assembly and provides better component protection during handling and storage.

Q: Are the contact finishes identical?

A: Yes. Both parts feature gold or gold GXT™ contact finish with 30.0µin (0.76µm) thickness, ensuring equivalent electrical performance and reliability.

Q: What is the operating temperature range for both parts?

A: Both the 51940-213 and 51940-213LF operate across -20°C to 105°C, providing identical thermal performance characteristics.

Q: Are there any mechanical compatibility concerns?

A: No. Both connectors feature identical 36-position, 4-row configurations with 0.100" (2.54mm) pitch, board lock, and guide pin features. Through-hole mounting and solder termination are identical.