Amphenol ICC 51940-030 Backplane Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 51940-030 is a 26-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 24 signal and 2 power contacts. The part is currently listed as obsolete, making identification of active equivalent components essential for ongoing production and maintenance applications.

Substiute Parts

51940-030

Amphenol ICC (FCI)In Stock: 102651940-030 Datasheet

Current PartRFQ

51940-030LF

Amphenol ICC (FCI)In Stock: 88551940-030LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 51940-030 connector can be substituted with the 51940-030LF based on strict electrical and mechanical parameter equivalence. Both parts share identical specifications across all critical substitution criteria:

• Connector type, style, and position count (26-position receptacle, blade power)
• Physical configuration (4-row, 0.100" pitch, through-hole mounting)
• Contact layout and termination method (24 signal, 2 power, solder)
• Electrical performance parameters (operating temperature -20°C to 105°C, UL94 V-0 flammability)
• Contact finish specification (Gold or Gold, GXT™ at 30.0µin thickness)
• Mechanical features (board lock, guide pin)

The primary distinction between these parts is product status and compliance certification, not functional or electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The 51940-030LF is the direct active equivalent for the obsolete 51940-030. Selection between these parts should be based on the following criteria:

Use 51940-030LF for new designs and production: This part carries active product status and RoHS compliance certification, meeting current regulatory requirements for electronic component procurement. The tray packaging format supports standard manufacturing workflows.

Use 51940-030 only for legacy system maintenance: The obsolete status indicates this part is no longer manufactured. Selection is limited to existing inventory (1014 pcs available) and applies only to repair or replacement of existing installations where the original specification must be maintained.

Both parts are electrically and mechanically interchangeable. The choice between them is determined by regulatory compliance requirements and product lifecycle status, not by functional performance.

Frequently Asked Questions (FAQ)

Q: Are the 51940-030 and 51940-030LF electrically interchangeable?

A: Yes. Both parts share identical electrical specifications including operating temperature range (-20°C to 105°C), contact finish (Gold or Gold, GXT™), and contact layout (24 signal, 2 power). They are direct functional equivalents.

Q: What is the difference between these two parts?

A: The primary differences are product status (obsolete vs. active), RoHS compliance (non-compliant vs. compliant), and packaging format (bulk vs. tray). All electrical and mechanical parameters are identical.

Q: Can I use 51940-030LF as a replacement for 51940-030 in existing assemblies?

A: Yes. The 51940-030LF is mechanically and electrically compatible with the 51940-030. Both parts feature identical connector geometry, pitch, mounting type, and contact configuration.

Q: Why does the 51940-030 show as obsolete?

A: The 51940-030 has been superseded by the 51940-030LF, which includes RoHS compliance certification. Amphenol ICC has transitioned production to the compliant variant.

Q: What does the "LF" suffix indicate?

A: The "LF" suffix denotes lead-free and RoHS compliance. The 51940-030LF meets RoHS Directive requirements, while the 51940-030 does not.

Q: Are there packaging differences I should consider?

A: Yes. The 51940-030 is supplied in bulk packaging, while the 51940-030LF uses tray packaging. Tray packaging is standard for modern manufacturing processes and provides better component protection during handling and storage.