Amphenol ICC 51940-109 Blade Power Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 51940-109 is a 13-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 combines 8 signal contacts with 5 power contacts in a 4-row configuration with 0.100" (2.54mm) pitch spacing.

The 51940-109 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and access components with current manufacturing support and compliance certifications.

Substiute Parts

51940-109

Amphenol ICC (FCI)In Stock: 97251940-109 Datasheet

Current PartRFQ

51940-109LF

Amphenol ICC (FCI)In Stock: 118051940-109LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 51940-109 is determined by strict equivalence across the following critical parameters:

• Connector type (Receptacle, Female Sockets and Blade Sockets)
• Number of positions (13)
• Connector style (Blade Power)
• Pitch spacing (0.100" / 2.54mm)
• Row configuration (4 rows)
• Contact layout (8 Signal, 5 Power)
• Mounting method (Through Hole)
• Termination type (Solder)
• Contact finish specification (Gold or Gold, GXT™)
• Color (Black)
• Operating temperature range (-20°C ~ 105°C)
• Flammability rating (UL94 V-0)

The 51940-109LF meets all these criteria and qualifies as a direct substitute. The primary distinction is product status and compliance certification, not electrical or mechanical performance.

Parameter Comparison

Engineering Selection Recommendations

The 51940-109LF is the direct substitute for the obsolete 51940-109. Both connectors are electrically and mechanically identical across all specified parameters. The 51940-109LF provides the following advantages:

• Active product status with ongoing manufacturing support
• RoHS compliance certification
• REACH compliance status
• Tray packaging for production environments
• Higher current inventory availability (1130 pcs vs. 897 pcs)

For new designs or production continuity, the 51940-109LF is the appropriate selection. The obsolete status of the 51940-109 makes it unsuitable for long-term supply chain planning.

Frequently Asked Questions (FAQ)

Q: Can the 51940-109LF be used as a direct replacement for the 51940-109 in existing designs?

A: Yes. The 51940-109LF is electrically and mechanically identical to the 51940-109 across all specified parameters including connector type, position count, pitch, contact layout, mounting method, and operating temperature range. No design modifications are required.

Q: What is the significance of the "LF" designation in the part number?

A: The "LF" suffix indicates lead-free compliance. The 51940-109LF meets RoHS requirements, whereas the 51940-109 does not. Both connectors maintain identical electrical and mechanical specifications.

Q: Are there packaging differences between these parts?

A: The 51940-109LF is supplied in Tray packaging, which is standard for production environments. Packaging specifications for the 51940-109 were not provided in the available data.

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

A: Both connectors feature Gold or Gold, GXT™ contact finish with a thickness of 30.0µin (0.76µm). This specification is identical between the two parts.

Q: Why is the 51940-109 listed as obsolete?

A: The 51940-109 has reached end-of-life status. The 51940-109LF represents the current production equivalent with active manufacturing support and modern compliance certifications.