Amphenol ICC 51940-063 Backplane Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 51940-063 is a 32-position blade power receptacle connector from the PwrBlade® series, designed for through-hole PCB mounting with solder termination. This connector features female sockets and blade sockets in a 4-row configuration with a 0.100" (2.54mm) pitch, supporting 24 signal and 8 power contacts.

The 51940-063 carries an obsolete product status. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support legacy system maintenance where this connector type remains in use.

Substiute Parts

51940-063

Amphenol ICC (FCI)In Stock: 125851940-063 Datasheet

Current PartRFQ

51940-063LF

Amphenol ICC (FCI)In Stock: 97951940-063LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 51940-063 is determined by strict equivalence across the following critical parameters:

• Connector type, style, and gender (Receptacle, Female Sockets and Blade Sockets, Blade Power)
• Position count and configuration (32 positions, 4 rows, 0.100" pitch)
• Contact layout (24 Signal, 8 Power)
• Mounting and termination method (Through Hole, Solder)
• Physical features (Board Lock, Guide Pin)
• Contact finish specification (Gold or Gold, GXT™ at 30.0µin thickness)
• Environmental and compliance ratings (UL94 V-0, -20°C ~ 105°C, MSL 1)

The identified substitute maintains full electrical and mechanical compatibility with the original part specification. Substitution is based on identical functional parameters and design characteristics within the PwrBlade® series.

Parameter Comparison

Engineering Selection Recommendations

The 51940-063LF is the direct substitute for the obsolete 51940-063. Both parts are manufactured by Amphenol ICC within the PwrBlade® series and maintain identical electrical and mechanical specifications across all critical parameters.

The primary distinction between these parts is product status and regulatory compliance. The 51940-063LF carries active product status and RoHS compliance certification, whereas the 51940-063 is obsolete and RoHS non-compliant. For new designs or systems requiring regulatory compliance, the 51940-063LF is the appropriate selection. For legacy system maintenance where the original part specification must be preserved, the 51940-063LF provides full functional equivalence.

Both parts are available in production quantities and support identical PCB layouts, mounting procedures, and electrical performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the 51940-063LF be used as a direct replacement for the 51940-063 in existing designs?

A: Yes. The 51940-063LF is electrically and mechanically equivalent to the 51940-063. All connector parameters, including position count, pitch, contact layout, mounting type, and termination method, are identical. PCB footprints and assembly procedures remain unchanged.

Q: What is the difference between the 51940-063 and 51940-063LF?

A: The primary differences are product status and RoHS compliance. The 51940-063 is obsolete and RoHS non-compliant, while the 51940-063LF is active and RoHS compliant. All functional and electrical specifications are identical.

Q: Are there packaging differences between these parts?

A: The 51940-063 is supplied without specified packaging, while the 51940-063LF is packaged in trays. This distinction affects handling and storage procedures but does not impact electrical or mechanical performance.

Q: What certifications apply to both parts?

A: Both the 51940-063 and 51940-063LF meet UL94 V-0 material flammability requirements and operate across the -20°C to 105°C temperature range. Both carry MSL 1 (Unlimited) moisture sensitivity classification.

Q: Can these connectors be used interchangeably in high-reliability applications?

A: Functional interchangeability is complete. Selection between the two parts should be based on product status requirements and regulatory compliance needs. The 51940-063LF is recommended for applications requiring active product support and RoHS compliance.