Amphenol ICC 51940-200 Backplane Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 51940-200 is a 24-position receptacle connector from the PwrBlade® series, designed for through-hole PCB mounting with solder termination. This connector features female sockets with board lock and guide pin functionality, suitable for backplane applications requiring reliable interconnection.

The 51940-200 is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing maintenance, repair, and new design implementations where this connector type is specified.

Substiute Parts

51940-200

Amphenol ICC (FCI)In Stock: 73051940-200 Datasheet

Current PartRFQ

51940-200LF

Amphenol ICC (FCI)In Stock: 126551940-200LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 51940-200 is determined by strict equivalence across the following critical parameters:

• Connector type: Receptacle, Female Sockets
• Number of positions: 24
• Pitch: 0.100" (2.54mm)
• Number of rows: 4
• Mounting type: Through Hole
• Termination method: Solder
• Features: Board Lock, Guide Pin
• Contact finish: Gold or Gold, GXT™
• Contact finish thickness: 30.0µin (0.76µm)
• Color: Black
• Material flammability rating: UL94 V-0
• Operating temperature range: -20°C ~ 105°C
• Moisture sensitivity level: 1 (Unlimited)
• Series: PwrBlade®

The substitute part 51940-200LF maintains identical electrical and mechanical specifications to the main part number while differing in packaging format and product status.

Parameter Comparison

Engineering Selection Recommendations

The 51940-200LF is the direct substitute for the obsolete 51940-200. Both parts are electrically and mechanically identical across all specified parameters. The primary differences are:

• Product Status: The 51940-200LF is active and currently manufactured, whereas the 51940-200 is obsolete and no longer in production.
• RoHS Compliance: The 51940-200LF is RoHS compliant, meeting current environmental regulations. The 51940-200 is RoHS non-compliant.
• Packaging: The 51940-200LF is supplied in tray packaging, while the 51940-200 uses bulk packaging.

For new designs and ongoing applications, the 51940-200LF is the appropriate selection due to its active production status and RoHS compliance. Both parts maintain identical UL94 V-0 flammability ratings and operate within the same temperature range of -20°C to 105°C.

Frequently Asked Questions (FAQ)

Q: Can the 51940-200LF be used as a direct replacement for the 51940-200?

A: Yes. The 51940-200LF is electrically and mechanically equivalent to the 51940-200 across all specified parameters, including connector type, position count, pitch, mounting method, termination, features, contact finish, and operating temperature range.

Q: What is the difference between the 51940-200 and 51940-200LF?

A: The primary differences are product status, RoHS compliance, and packaging format. The 51940-200LF is an active product with RoHS compliance and tray packaging, while the 51940-200 is obsolete, RoHS non-compliant, and supplied in bulk packaging.

Q: Are there any compatibility concerns when substituting the 51940-200LF for the 51940-200?

A: No compatibility concerns exist. Both connectors share identical electrical and mechanical specifications, including the 24-position configuration, 0.100" pitch, through-hole mounting, solder termination, board lock and guide pin features, and gold contact finish with 30.0µin thickness.

Q: Does the packaging difference affect connector performance?

A: No. Packaging format (bulk versus tray) does not affect connector electrical or mechanical performance. The tray packaging of the 51940-200LF provides improved handling and organization during storage and assembly.

Q: Is the 51940-200LF suitable for applications requiring RoHS compliance?

A: Yes. The 51940-200LF is RoHS compliant and meets current environmental regulations. The original 51940-200 is RoHS non-compliant.