55755-201 Equivalent & Substitute Parts

Part Overview

The 55755-201 is a 240-position rectangular connector array with female sockets designed for surface mount applications. Manufactured by Amphenol ICC (FCI) under the MEG-Array® and MezzSelect™ series, this component features gold-plated contacts and is classified as an active product. The connector is specified for applications requiring high-density interconnection with 0.050" (1.27mm) pitch spacing across 8 rows.

Identifying equivalent and substitute parts is necessary when addressing supply chain constraints, compliance requirements, or specific application needs while maintaining electrical and mechanical compatibility.

Substiute Parts

55755-201

Amphenol ICC (FCI)In Stock: 103755755-201 Datasheet

Current PartRFQ

55755-201LF

Amphenol ICC (FCI)In Stock: 137755755-201LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 55755-201LF is identified as a direct substitute based on identical electrical and mechanical parameters. Substitution compatibility is determined by the following critical parameters:

• Number of positions: 240
• Pitch spacing: 0.050" (1.27mm)
• Row configuration: 8 rows
• Connector type: Array, Female Sockets
• Mounting type: Surface Mount
• Contact finish specification: Gold or Gold, GXT™
• Contact finish thickness: 80.0µin (2.03µm)
• Mated stacking height: 6mm
• Height above board: 0.211" (5.35mm)
• Series designation: MEG-Array®, MezzSelect™

The 55755-201LF maintains full compatibility across all specified electrical and mechanical parameters, with the primary distinction being regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

Selection between 55755-201 and 55755-201LF is determined by regulatory and compliance requirements applicable to the end application.

The 55755-201LF is the preferred selection for applications subject to RoHS directives, as it maintains full RoHS compliance. This variant is suitable for consumer electronics, automotive, and industrial applications operating under RoHS-regulated markets.

The 55755-201 remains suitable for applications where RoHS compliance is not mandated and where REACH-unaffected status is a requirement. Both parts maintain identical electrical and mechanical performance characteristics, identical MSL rating, and identical export classification.

Both variants are active products with established supply availability and are suitable for new design implementations.

Frequently Asked Questions (FAQ)

Q: Are 55755-201 and 55755-201LF electrically and mechanically interchangeable?

A: Yes. Both parts maintain identical specifications for connector type, position count, pitch, row configuration, mounting type, contact finish, stacking heights, and series designation. They are direct functional equivalents.

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

A: The primary difference is regulatory compliance status. The 55755-201LF is RoHS compliant, while the 55755-201 is RoHS non-compliant. The 55755-201LF is REACH affected, while the 55755-201 is REACH unaffected.

Q: Which part should be selected for new designs?

A: Selection depends on the regulatory requirements of the target market and application. For RoHS-regulated applications, specify 55755-201LF. For applications where RoHS compliance is not required, either part is acceptable based on supply and compliance needs.

Q: Are both parts available in the same packaging format?

A: Yes. Both 55755-201 and 55755-201LF are supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes.

Q: What is the moisture sensitivity level for both parts?

A: Both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.