Amphenol ICC 51939-088 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 51939-088 is a 32-position backplane connector header featuring male pins and blades with right-angle board edge mounting. This connector is designed for through-hole soldering applications and incorporates blade power technology with integrated board lock and mating guide features. The part is classified as obsolete, making identification of active equivalent components essential for ongoing system support and new design implementations.

Substiute Parts

51939-088

Amphenol ICC (FCI)In Stock: 104751939-088 Datasheet

Current PartRFQ

51720-10402404ABLF

Amphenol ICC (FCI)In Stock: 89251720-10402404ABLF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 51939-088 is based on strict electrical and mechanical parameter alignment within the PwrBlade® connector series. The primary substitute, Amphenol ICC 51720-10402404ABLF, maintains functional equivalence through identical specifications across all critical parameters:

Key Parameters Determining Substitution:

• Connector type: Header, Male Pins and Blades
• Number of positions: 32
• Pitch: 0.100" (2.54mm)
• Number of rows: 4
• Contact layout: 24 Signal, 8 Power
• Mounting type: Board Edge, Through Hole, Right Angle
• Operating temperature range: -20°C to 105°C
• Material flammability rating: UL94 V-0
• Contact finish: Gold or Gold, GXT™
• Contact finish thickness: 30.0µin (0.76µm)
• Color: Black

The substitute part differs in product status (Active vs. Obsolete) and RoHS compliance, making it the direct functional replacement for the obsolete 51939-088.

Parameter Comparison

Engineering Selection Recommendations

The 51720-10402404ABLF is the direct functional equivalent for the obsolete 51939-088. Selection of the substitute part is supported by:

• Identical electrical and mechanical specifications across all connector parameters
• Active product status ensuring ongoing availability and supply chain continuity
• RoHS compliance of the substitute part, meeting current regulatory requirements for new designs and manufacturing processes
• Equivalent certifications and material flammability ratings (UL94 V-0)
• Same operating temperature range and environmental specifications
• Identical contact finish specifications and thickness

The substitute part is suitable for direct replacement in existing applications and for new designs requiring this connector configuration.

Frequently Asked Questions (FAQ)

Q: Can the 51720-10402404ABLF directly replace the 51939-088 in existing applications?

A: Yes. Both parts share identical specifications for connector type, position count, pitch, mounting configuration, contact layout, operating temperature range, and material properties. The substitute is a direct functional equivalent.

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

A: The 51939-088 is obsolete and RoHS non-compliant, while the 51720-10402404ABLF is an active product with RoHS compliance. All electrical and mechanical parameters are identical.

Q: Does the RoHS compliance difference affect compatibility?

A: No. RoHS compliance indicates the material composition meets regulatory standards but does not alter the connector's electrical or mechanical function. Both parts are compatible with the same mating interfaces and applications.

Q: Are there packaging differences between these parts?

A: The 51720-10402404ABLF is supplied in Tray packaging. Packaging format does not affect connector performance or compatibility.

Q: What contact finish options are available?

A: Both parts offer Gold or Gold, GXT™ contact finish with a thickness of 30.0µin (0.76µm), providing equivalent electrical performance and durability.

Q: Is the 51720-10402404ABLF available in inventory?

A: Availability is subject to current stock levels. The 51720-10402404ABLF is an active product, ensuring long-term supply availability compared to the obsolete 51939-088.