Amphenol ICC 51731-041 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 51731-041 is a 43-position blade power connector header designed for board edge, through-hole, right-angle mounting applications. This connector features male pins and blades with a 0.100" (2.54mm) pitch, organized in 4 rows with a typical contact layout of 32 signal and 11 power contacts. The connector is part of the PwrBlade® series and includes board lock and mating guide features.

The 51731-041 is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure continued availability for maintenance, repair, and new design implementations where this connector type is specified.

Substiute Parts

51731-041

Amphenol ICC (FCI)In Stock: 120751731-041 Datasheet

Current PartRFQ

51731-041LF

Amphenol ICC (FCI)In Stock: 72151731-041LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 51731-041 is determined by strict equivalence across the following critical parameters:

• Connector type and style (Header, Male Pins and Blades; Blade Power)
• Number of positions (43)
• Pitch specification (0.100" / 2.54mm)
• Number of rows (4)
• Mounting configuration (Board Edge, Through Hole, Right Angle)
• Contact layout (32 Signal, 11 Power)
• Contact finish and thickness (Gold or Gold, GXT™; 30.0µin)
• Color (Black)
• Flammability rating (UL94 V-0)
• Operating temperature range (-20°C ~ 105°C)
• Series designation (PwrBlade®)

The substitute part 51731-041LF meets all these parameters identically, with the primary distinction being product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The 51731-041LF is the direct substitute for the obsolete 51731-041. Both parts are electrically and mechanically identical across all functional parameters. The 51731-041LF is the preferred selection for new designs and ongoing applications due to its active product status and RoHS compliance certification. The 51731-041LF is supplied in Tray packaging and carries REACH compliance status, making it suitable for applications subject to environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the 51731-041LF be used as a direct replacement for the 51731-041?

A: Yes. The 51731-041LF is electrically and mechanically equivalent to the 51731-041 across all specified parameters, including connector type, position count, pitch, mounting configuration, contact layout, finish specifications, and operating temperature range.

Q: What is the primary difference between these two parts?

A: The 51731-041 is obsolete, while the 51731-041LF is active. The 51731-041LF is RoHS compliant and carries REACH compliance status. The 51731-041LF is supplied in Tray packaging.

Q: Are there any compatibility concerns when substituting the 51731-041 with the 51731-041LF?

A: No compatibility concerns exist. Both parts share identical electrical and mechanical specifications, including the same connector type, blade power style, 43-position configuration, 0.100" pitch, 4-row arrangement, board edge through-hole right-angle mounting, and contact layout of 32 signal and 11 power contacts.

Q: What packaging is available for the 51731-041LF?

A: The 51731-041LF is supplied in Tray packaging.

Q: Does the 51731-041LF meet RoHS requirements?

A: Yes. The 51731-041LF is RoHS compliant, whereas the 51731-041 is RoHS non-compliant.