Amphenol ICC 51720-10402002AA Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 51720-10402002AA is a 26-position backplane connector header featuring male pins and blades for board edge, through-hole, right-angle mounting. This connector is part of the PwrBlade® series and provides 20 signal and 6 power contact positions with a 0.100" (2.54mm) pitch across 4 rows. The part is currently classified as obsolete, making identification of active equivalent components essential for ongoing system support and new design implementations.

Substiute Parts

51720-10402002AA

Amphenol ICC (FCI)In Stock: 116851720-10402002AA Datasheet

Current PartRFQ

51720-10402002AALF

Amphenol ICC (FCI)In Stock: 111651720-10402002AALF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 51720-10402002AA is determined by strict equivalence across the following critical parameters:

• Connector type and style (Header, Male Pins and Blades; Blade Power)
• Number of positions and contact layout (26 positions; 20 Signal, 6 Power)
• Pitch specification (0.100" / 2.54mm)
• Mounting configuration (Board Edge, Through Hole, Right Angle)
• Number of rows (4)
• Termination method (Solder)
• Operating temperature range (-20°C to 105°C)
• Material flammability rating (UL94 V-0)
• Moisture sensitivity level (MSL 1)

The identified substitute maintains identical electrical and mechanical specifications while offering improved product status and compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The 51720-10402002AALF serves as the direct active equivalent to the obsolete 51720-10402002AA. Both parts maintain identical electrical and mechanical specifications across all critical parameters, ensuring direct form, fit, and function compatibility.

The substitute part offers significant advantages for new designs and ongoing system support:

• Active product status ensures continued availability and manufacturer support
• RoHS compliance aligns with current regulatory requirements for electronic components
• REACH compliance documentation is available, supporting supply chain transparency
• Tray packaging provides standard handling and storage specifications

The transition from the obsolete part number to the active equivalent presents no technical barriers to implementation. All connector interface specifications, mounting requirements, and electrical characteristics remain unchanged.

Frequently Asked Questions (FAQ)

Q: Are the 51720-10402002AA and 51720-10402002AALF mechanically interchangeable?

A: Yes. Both parts share identical mounting type (board edge, through hole, right angle), position count (26), pitch (0.100"), and row configuration (4 rows). Direct substitution is supported without PCB redesign.

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

A: The primary differences are product status and compliance. The 51720-10402002AA is obsolete and RoHS non-compliant. The 51720-10402002AALF is an active product with RoHS compliance and REACH documentation. Electrical and mechanical specifications are identical.

Q: Can I use the substitute part in existing designs originally specified for the 51720-10402002AA?

A: Yes. The substitute maintains all electrical and mechanical parameters. No design changes are required for direct replacement in existing applications.

Q: What packaging is available for the substitute part?

A: The 51720-10402002AALF is supplied in tray packaging, which is the standard format for this connector series.

Q: Are there any compliance considerations when switching to the substitute part?

A: The substitute part is RoHS compliant and REACH affected, which may be advantageous for systems subject to these regulatory frameworks. The original part is RoHS non-compliant.

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

A: Both parts feature gold or gold GXT™ contact finish with a thickness of 30.0µin (0.76µm), ensuring consistent electrical performance and reliability.