Amphenol ICC 51732-039 Backplane Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 51732-039 is a 35-position blade power connector header designed for board edge, through-hole mounting applications. This connector features male pins and blades in a right-angle configuration with a 0.100" (2.54mm) pitch and is part of the PwrBlade® series. The part is currently classified as obsolete, which necessitates identification of active equivalent alternatives to maintain supply chain continuity for existing designs and legacy system support.

Substiute Parts

51732-039

Amphenol ICC (FCI)In Stock: 74851732-039 Datasheet

Current PartRFQ

51732-039LF

Amphenol ICC (FCI)In Stock: 96751732-039LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 51732-039LF qualifies as a direct substitute for the 51732-039 based on strict electrical and mechanical parameter equivalence. Both parts share identical specifications across all critical substitution criteria:

• Connector position count: 35 positions
• Pitch specification: 0.100" (2.54mm)
• Row configuration: 4 rows
• Connector type and style: Header with male pins and blades, blade power configuration
• Mounting method: Board edge, through-hole, right-angle orientation
• Termination method: Solder
• Contact layout: 24 signal, 11 power positions
• Material flammability: UL94 V-0
• Operating temperature range: -20°C ~ 105°C
• Contact finish and thickness: Gold or Gold, GXT™ at 30.0µin (0.76µm)
• Physical color: Black
• Moisture sensitivity: MSL 1 (Unlimited)

The primary distinction between these parts is product status and compliance certification. The 51732-039LF is active in production with RoHS compliance and REACH compliance status, whereas the 51732-039 is obsolete and RoHS non-compliant.

Parameter Comparison

Engineering Selection Recommendations

The 51732-039LF is the appropriate selection for new designs and ongoing production requirements. This part maintains full electrical and mechanical compatibility with the obsolete 51732-039 while offering the following advantages:

• Active production status ensures long-term availability and supply chain reliability
• RoHS compliance satisfies regulatory requirements for electronic equipment in regulated markets
• REACH compliance status provides documented hazardous substance management
• Tray packaging supports efficient inventory management and automated assembly processes

For legacy systems currently using the 51732-039, the 51732-039LF provides a direct functional replacement without design modification, as all critical parameters remain identical.

Frequently Asked Questions (FAQ)

Q: Are the 51732-039 and 51732-039LF mechanically interchangeable?

A: Yes. Both parts share identical mechanical specifications including position count (35), pitch (0.100"), row configuration (4), mounting type (board edge, through-hole, right-angle), and physical dimensions. No PCB redesign is required for substitution.

Q: What is the difference between these two part numbers?

A: The primary differences are product status and compliance certifications. The 51732-039LF is an active production part with RoHS and REACH compliance, while the 51732-039 is obsolete and RoHS non-compliant. All electrical and mechanical parameters are identical.

Q: Can the 51732-039LF be used as a direct replacement in existing designs?

A: Yes. The 51732-039LF is a direct substitute with no design changes required. All contact layouts, termination methods, operating temperature ranges, and electrical characteristics remain unchanged.

Q: What does the "LF" suffix in 51732-039LF indicate?

A: The "LF" suffix typically indicates lead-free compliance in Amphenol ICC part numbering conventions, which aligns with the RoHS compliance status of this part.

Q: Are there packaging differences between these parts?

A: The 51732-039LF is supplied in tray packaging. The original 51732-039 packaging specification was not provided in the technical data. Confirm packaging requirements with your procurement process.

Q: What is the current inventory status for these parts?

A: The 51732-039 has 713 pieces in stock (obsolete status). The 51732-039LF has 945 pieces in stock (active production). For new orders, source the 51732-039LF to ensure continued availability.