B5741-234-F-N-2 Equivalent & Substitute Parts

Part Overview

The B5741-234-F-N-2 is a 34-position receptacle connector from Harwin Inc.'s Datamate L-Tek series, designed for board-to-board or cable applications with 0.079" (2.00mm) pitch mating. This connector features gold-plated contacts, through-hole solder termination, and locking ramp fastening. The part is currently obsolete, making identification of active equivalent components essential for ongoing production and maintenance applications.

Substiute Parts

B5741-234-F-N-2

Harwin Inc.In Stock: 760B5741-234-F-N-2 Datasheet

Current PartRFQ

M80-8503445

Harwin Inc.In Stock: 1058M80-8503445 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The M80-8503445 qualifies as a direct substitute for the B5741-234-F-N-2 based on the following critical parameters:

• Identical connector type (Receptacle) and contact type (Female Socket)
• Matching position count (34 positions) and mating pitch (0.079" / 2.00mm)
• Identical row configuration (2 rows with 0.079" row spacing)
• Same mounting method (Through Hole) and termination type (Solder)
• Identical fastening mechanism (Locking Ramp)
• Matching contact finish on mating surface (Gold)
• Same operating temperature range (-55°C ~ 125°C)
• Identical material flammability rating (UL94 V-0)
• Same contact material (Beryllium Copper)
• Equivalent application scope (Automotive, General Purpose, Military)

The M80-8503445 is an active product from the same manufacturer and series, providing continuity for designs currently using the obsolete B5741-234-F-N-2.

Parameter Comparison

Engineering Selection Recommendations

The M80-8503445 is the appropriate substitute for the obsolete B5741-234-F-N-2. The substitute part maintains all critical electrical and mechanical parameters required for direct replacement in existing designs.

The M80-8503445 carries ROHS3 compliance status, whereas the B5741-234-F-N-2 is RoHS non-compliant. This compliance improvement in the substitute part aligns with current regulatory requirements for electronic components in automotive, general purpose, and military applications.

Both parts carry identical REACH and ECCN classifications, confirming regulatory equivalence for international distribution and use.

Frequently Asked Questions (FAQ)

Q: Can M80-8503445 be used as a direct replacement for B5741-234-F-N-2 in existing PCB designs?

A: Yes. The M80-8503445 maintains identical mating pitch (0.079"), position count (34), row configuration (2 rows), mounting type (Through Hole), and termination method (Solder). PCB footprints designed for B5741-234-F-N-2 are compatible with M80-8503445.

Q: What is the difference in contact post length between these parts?

A: The B5741-234-F-N-2 has a contact post length of 0.051" (1.30mm), while the M80-8503445 has a contact post length of 0.118" (3.00mm). This difference does not affect mating compatibility but may impact PCB design considerations for solder joint depth and board thickness.

Q: Are there compliance differences between the two parts?

A: The M80-8503445 is ROHS3 compliant, while the B5741-234-F-N-2 is RoHS non-compliant. Both parts maintain identical REACH and ECCN classifications. The improved compliance status of M80-8503445 supports current regulatory requirements.

Q: What packaging is available for the substitute part?

A: The M80-8503445 is supplied in Tube packaging, whereas the B5741-234-F-N-2 packaging specification was not provided. Confirm packaging requirements with procurement specifications.

Q: Are the insulation materials equivalent?

A: The B5741-234-F-N-2 uses Polyester, Glass Filled insulation, while the M80-8503445 uses Polyamide (PA46), Nylon 4/6, Glass Filled insulation. Both materials meet UL94 V-0 flammability requirements and maintain the same operating temperature range (-55°C ~ 125°C).