Amphenol ICC 51940-147 Blade Power Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 51940-147 is a 27-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 24 signal and 3 power contacts. The main part is currently listed as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement.

Substiute Parts

51940-147

Amphenol ICC (FCI)In Stock: 82851940-147 Datasheet

Current PartRFQ

51940-147LF

Amphenol ICC (FCI)In Stock: 92651940-147LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 51940-147 is determined by strict equivalence across the following critical parameters:

• Connector type and style (Receptacle, Female Sockets and Blade Sockets, Blade Power)
• Number of positions and contact layout (27 positions: 24 Signal, 3 Power)
• Pitch and row configuration (0.100" pitch, 4 rows)
• Mounting and termination method (Through Hole, Solder)
• Contact finish specification (Gold, 30.0µin thickness)
• Operating temperature range (-20°C ~ 105°C)
• Material flammability rating (UL94 V-0)

The substitute part 51940-147LF meets all these criteria and is the direct equivalent. The primary distinction is product status and compliance certification, not electrical or mechanical function.

Parameter Comparison

Engineering Selection Recommendations

The 51940-147LF is the direct functional equivalent to the 51940-147. Selection between these parts is determined by compliance and availability requirements:

• For new designs or procurement requiring RoHS compliance, the 51940-147LF is the appropriate selection. This part carries active product status and meets RoHS requirements.
• The 51940-147 is obsolete and non-compliant with RoHS regulations. Use of this part is limited to legacy system maintenance where existing inventory is available.
• Both parts are electrically and mechanically identical across all specified parameters, including connector type, position count, pitch, contact layout, mounting method, and operating temperature range.
• The 51940-147LF is supplied in tray packaging, suitable for standard procurement and assembly workflows.

Frequently Asked Questions (FAQ)

Q: Are the 51940-147 and 51940-147LF mechanically interchangeable?

A: Yes. Both parts are identical in connector type, number of positions (27), pitch (0.100"), row configuration (4 rows), mounting method (through hole), and contact specifications. They are direct mechanical equivalents.

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

A: The "LF" designation indicates lead-free termination and RoHS compliance. The 51940-147LF meets RoHS requirements, while the 51940-147 does not.

Q: Can I use the 51940-147LF as a replacement for the 51940-147 in existing designs?

A: Yes. The 51940-147LF is a direct substitute with identical electrical and mechanical specifications. The primary difference is compliance status and product availability.

Q: What is the contact layout for these connectors?

A: Both connectors feature 27 total positions arranged in 4 rows with a 0.100" pitch. The contact layout consists of 24 signal contacts and 3 power contacts.

Q: What packaging options are available?

A: The 51940-147LF is supplied in tray packaging. The original 51940-147 packaging specification is not provided in the technical data.

Q: Are there any temperature or environmental limitations for these connectors?

A: Both parts operate within the temperature range of -20°C to 105°C and carry a UL94 V-0 material flammability rating. Moisture sensitivity level is 1 (unlimited), indicating no special moisture handling requirements.