Amphenol ICC 51750-073 Backplane Connector Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 51750-073 is a 20-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 is designed for backplane interconnect systems with a 0.100" (2.54mm) pitch configuration supporting 16 signal and 4 power contacts.

The 51750-073 carries an obsolete product status. Locating equivalent or substitute components is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or field service requirements for systems utilizing this connector type.

Substiute Parts

51750-073

Amphenol ICC (FCI)In Stock: 113951750-073 Datasheet

Current PartRFQ

51750-073LF

Amphenol ICC (FCI)In Stock: 86851750-073LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 51750-073 is determined by strict equivalence across the following critical parameters:

• Connector type: Receptacle with female sockets and blade sockets
• Connector style: Blade Power
• Number of positions: 20
• Pitch: 0.100" (2.54mm)
• Number of rows: 4
• Contact layout: 16 Signal, 4 Power
• Mounting type: Through Hole
• Termination method: Solder
• Features: Board Lock, Guide Pin
• Contact finish: Gold or Gold, GXT™
• Contact finish thickness: 30.0µin (0.76µm)
• Color: Black
• Material flammability rating: UL94 V-0
• Operating temperature range: -20°C to 105°C
• Moisture sensitivity level: 1 (Unlimited)

The 51750-073LF meets all these criteria and qualifies as a direct substitute. The primary distinction is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The 51750-073LF is the direct functional equivalent of the 51750-073. Both connectors are electrically and mechanically identical across all specified parameters, including connector type, position count, pitch, mounting method, contact configuration, and thermal operating range.

The 51750-073LF is recommended for new designs and ongoing production due to its active product status. This part carries RoHS compliance certification, whereas the 51750-073 does not. For applications subject to RoHS regulatory requirements, the 51750-073LF is the appropriate selection.

The 51750-073 remains suitable for field service, repair, or replacement applications where the original part specification must be maintained and RoHS compliance is not a design constraint.

Frequently Asked Questions (FAQ)

Q: Can the 51750-073LF be used as a direct replacement for the 51750-073 in existing designs?

A: Yes. The 51750-073LF is electrically and mechanically equivalent to the 51750-073. All connector parameters, including position count, pitch, contact layout, mounting type, and operating temperature range, are identical. The connectors are interchangeable at the functional level.

Q: What is the difference between the 51750-073 and 51750-073LF?

A: The primary differences are product status and compliance certification. The 51750-073 is obsolete and RoHS non-compliant. The 51750-073LF is active and RoHS compliant. Packaging differs: the 51750-073 is supplied in bulk, while the 51750-073LF is supplied in trays.

Q: Is the 51750-073LF suitable for new product designs?

A: Yes. The 51750-073LF carries active product status and RoHS compliance, making it appropriate for new designs. It maintains full electrical and mechanical compatibility with the 51750-073 specification.

Q: Are there any thermal or electrical performance differences between these parts?

A: No. Both parts operate across the same temperature range (-20°C to 105°C) and share identical contact finish specifications, flammability ratings, and electrical contact configurations.

Q: What packaging options are available?

A: The 51750-073 is supplied in bulk packaging. The 51750-073LF is supplied in tray packaging, which may offer advantages for automated assembly and inventory management.