B5741-102-F-N-0 Equivalent & Substitute Parts

Part Overview

The B5741-102-F-N-0 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 tin-lead post finish, rated for 3A at 120V operation across -55°C to 125°C temperature range. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing design support and component procurement.

Substiute Parts

B5741-102-F-N-0

Harwin Inc.In Stock: 824B5741-102-F-N-0 Datasheet

Current PartRFQ

M80-8400242

Harwin Inc.In Stock: 952M80-8400242 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The M80-8400242 qualifies as a direct substitute for the B5741-102-F-N-0 based on the following critical parameters:

Matching electrical and mechanical specifications include: 2-position receptacle configuration, 0.079" (2.00mm) mating pitch, through-hole solder termination, female socket contact type, beryllium copper contact material, circular contact shape, and identical operating temperature range (-55°C to 125°C). Both connectors feature UL94 V-0 flammability rating and belong to the same Datamate L-Tek series from Harwin Inc.

The M80-8400242 is currently in active production status, providing a viable replacement path for the obsolete B5741-102-F-N-0. Both parts maintain compatibility with automotive, general purpose, and military applications.

Parameter Comparison

Engineering Selection Recommendations

The M80-8400242 is the recommended substitute for the obsolete B5741-102-F-N-0. This substitution is supported by identical mechanical fit, electrical compatibility within the original design envelope, and matching environmental specifications.

Key advantages of the M80-8400242 include active production status ensuring long-term availability, ROHS3 compliance providing regulatory advantage for new designs, and higher voltage rating (800V versus 120V) offering greater design margin. The substitute maintains full compatibility with the original connector's mating interface and PCB footprint.

For applications requiring the original RoHS non-compliant specification, the B5741-102-F-N-0 remains the only option; however, the M80-8400242 is suitable for all new designs and retrofit applications where regulatory compliance is required.

Frequently Asked Questions (FAQ)

Q: Can M80-8400242 directly replace B5741-102-F-N-0 in existing designs?

A: Yes. Both connectors share identical mating pitch (0.079"), mounting type (through-hole), contact configuration (2-position female socket), and PCB footprint. The M80-8400242 will mate with the same plug connectors and occupy the same board space.

Q: What are the differences between these two parts?

A: The primary differences are product status (M80-8400242 is active; B5741-102-F-N-0 is obsolete), RoHS compliance (M80-8400242 is ROHS3 compliant; B5741-102-F-N-0 is non-compliant), voltage rating (M80-8400242 rated 800V; B5741-102-F-N-0 rated 120V), contact post finish (M80-8400242 uses tin; B5741-102-F-N-0 uses tin-lead), and insulation material (M80-8400242 uses polyamide PA46 nylon; B5741-102-F-N-0 uses polyester glass-filled).

Q: Are there current rating differences?

A: The B5741-102-F-N-0 specifies 3A current rating. The M80-8400242 does not provide a current rating specification in available documentation. Design verification against actual application requirements is necessary.

Q: What packaging is available for the substitute?

A: The M80-8400242 is supplied in tube packaging. The original B5741-102-F-N-0 packaging specification is not provided.

Q: Are both parts suitable for automotive and military applications?

A: Yes. Both connectors list automotive, general purpose, and military applications. Both maintain UL94 V-0 flammability rating and identical operating temperature range (-55°C to 125°C).

Q: Why does the substitute have a higher voltage rating?

A: The M80-8400242 is rated for 800V while the B5741-102-F-N-0 is rated for 120V. This represents a design improvement in the active substitute part and provides greater electrical safety margin for applications operating below 120V.