Equivalent & Substitute Parts for B5741-102-F-N-2

Part Overview

The B5741-102-F-N-2 is a 2-position receptacle connector from Harwin Inc.'s Datamate L-Tek series, designed for through-hole PCB mounting with 0.079" (2.00mm) pitch spacing. This connector features gold-plated mating contacts and is rated for 3A at 120V across automotive, general purpose, and military applications. The part is currently obsolete, making identification of active substitute components essential for ongoing production and maintenance requirements.

Substiute Parts

B5741-102-F-N-2

Harwin Inc.In Stock: 969B5741-102-F-N-2 Datasheet

Current PartRFQ

M80-8400242

Harwin Inc.In Stock: 952M80-8400242 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part M80-8400242 qualifies as a direct equivalent based on the following critical parameters:

• Connector Type & Configuration: Both are 2-position receptacle connectors within the Datamate L-Tek series
• Pitch Specification: Identical 0.079" (2.00mm) mating pitch ensures mechanical and electrical compatibility
• Mounting Method: Both utilize through-hole solder termination on PCBs
• Contact Geometry: Circular beryllium copper contacts in both parts
• Mating Contact Finish: Gold plating on mating surfaces in both configurations
• Operating Temperature: Identical -55°C ~ 125°C range
• Flammability Rating: Both meet UL94 V-0 material standard
• Environmental Compliance: Both are REACH Unaffected and classified as EAR99

The primary distinction is that M80-8400242 is an active product with enhanced specifications, whereas B5741-102-F-N-2 is obsolete.

Parameter Comparison

Engineering Selection Recommendations

M80-8400242 is the appropriate substitute for B5741-102-F-N-2 based on product lifecycle and regulatory status. The obsolete B5741-102-F-N-2 should be replaced with the active M80-8400242 for new designs and ongoing production. M80-8400242 provides ROHS3 compliance, addressing modern regulatory requirements that the original part does not meet. Both connectors maintain identical mechanical and electrical interfaces, ensuring direct substitution without circuit redesign. The higher voltage rating (800V vs. 120V) and enhanced post contact finish thickness of M80-8400242 provide additional design margin for demanding applications.

Frequently Asked Questions (FAQ)

Q: Can M80-8400242 be used as a direct replacement for B5741-102-F-N-2 in existing assemblies?

A: Yes. Both connectors share identical pitch (0.079"), mounting method (through-hole), contact geometry (circular beryllium copper), and mating contact finish (gold). PCB footprints and mating interfaces are compatible.

Q: What are the key differences between these parts?

A: M80-8400242 is an active product with ROHS3 compliance, while B5741-102-F-N-2 is obsolete and RoHS non-compliant. M80-8400242 features a higher voltage rating (800V vs. 120V) and thicker post contact finish (137.8µin vs. 11.0µin). The post contact finish differs (tin vs. gold on B5741-102-F-N-2).

Q: Are there packaging differences?

A: M80-8400242 is supplied in tube packaging. Packaging specifications for B5741-102-F-N-2 were not provided in the original documentation.

Q: What is the operating temperature range for both parts?

A: Both connectors operate across -55°C to 125°C, meeting automotive and military temperature requirements.

Q: Do both parts meet the same flammability standards?

A: Yes. Both B5741-102-F-N-2 and M80-8400242 meet UL94 V-0 material flammability ratings.

Q: Is M80-8400242 suitable for automotive and military applications?

A: Yes. M80-8400242 is rated for automotive, general purpose, and military applications, matching the application scope of the original part.