Amphenol ICC 51770-022 Backplane Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 51770-022 is a 22-position receptacle connector featuring female sockets and blade sockets, designed for board edge, through-hole, right-angle mounting applications. This connector is part of the PwrBlade® series and provides a 16 signal and 6 power contact layout with gold-plated contacts and guide pin features.

The 51770-022 is classified as obsolete. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for systems utilizing this connector specification.

Substiute Parts

51770-022

Amphenol ICC (FCI)In Stock: 78251770-022 Datasheet

Current PartRFQ

51770-022LF

Amphenol ICC (FCI)In Stock: 115451770-022LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 51770-022 is determined by strict equivalence across the following critical parameters:

• Connector type: Receptacle with female sockets and blade sockets
• Number of positions: 22
• Pitch: 0.100" (2.54mm)
• Number of rows: 4
• Mounting configuration: Board edge, through-hole, right-angle
• Termination method: Solder
• Contact layout: 16 signal, 6 power
• 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 ~ 105°C

The substitute part 51770-022LF maintains full electrical and mechanical compatibility with the original specification while offering improved compliance status and active product availability.

Parameter Comparison

Engineering Selection Recommendations

The 51770-022LF serves as the direct substitute for the obsolete 51770-022. Both parts maintain identical electrical and mechanical specifications across all critical parameters, ensuring functional interchangeability in board-level applications.

The 51770-022LF offers the following advantages:

• Active product status with confirmed ongoing availability
• RoHS compliance, meeting current regulatory requirements
• REACH compliance status documented
• Tray packaging for improved handling and inventory management
• Higher current inventory levels (1143 pcs vs. 694 pcs)

Selection of the 51770-022LF is appropriate for new designs and production continuity where RoHS compliance and active product support are required.

Frequently Asked Questions (FAQ)

Q: Are the 51770-022 and 51770-022LF electrically interchangeable?

A: Yes. Both parts maintain identical contact layout (16 signal, 6 power), pitch (0.100"), contact finish (Gold or Gold, GXT™), and operating temperature range (-20°C ~ 105°C). Electrical performance is equivalent.

Q: Are the 51770-022 and 51770-022LF mechanically interchangeable?

A: Yes. Both parts share identical mounting configuration (board edge, through-hole, right-angle), number of positions (22), row configuration (4 rows), and physical dimensions. Mechanical fit and assembly are equivalent.

Q: What is the significance of the "LF" suffix in the 51770-022LF part number?

A: The "LF" designation indicates lead-free construction, reflecting RoHS compliance. This represents the current manufacturing standard for this connector series.

Q: Can the 51770-022LF be used as a direct replacement in existing designs using the 51770-022?

A: Yes. The 51770-022LF maintains full compatibility with designs specified for the 51770-022, with no design modifications required.

Q: What packaging differences exist between these parts?

A: The 51770-022 is supplied in bulk packaging, while the 51770-022LF is supplied in tray packaging. Both packaging formats are suitable for production assembly processes.

Q: Are there any compliance differences between these parts?

A: The 51770-022LF is RoHS compliant and REACH affected, while the 51770-022 is RoHS non-compliant. For applications requiring regulatory compliance, the 51770-022LF is the appropriate selection.