B5741-107-F-N-0 Equivalent & Substitute Parts

Part Overview

The B5741-107-F-N-0 is a 7-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 mating contacts, through-hole solder termination, and a locking ramp fastening mechanism. The part is currently obsolete, making identification of active equivalent components essential for ongoing production and maintenance applications.

Substiute Parts

B5741-107-F-N-0

Harwin Inc.In Stock: 889B5741-107-F-N-0 Datasheet

Current PartRFQ

M80-8400742

Harwin Inc.In Stock: 777M80-8400742 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part M80-8400742 is classified as a direct equivalent based on the following critical parameters that determine substitution compatibility:

• Connector Type & Position Count: Both parts are 7-position receptacles
• Pitch Specification: Both maintain 0.079" (2.00mm) mating pitch
• Contact Configuration: Both feature female socket contacts with circular shape
• Mounting & Termination: Both use through-hole solder termination with locking ramp fastening
• Contact Material: Both utilize beryllium copper contacts
• Mating Contact Finish: Both feature gold-plated mating surfaces
• Operating Temperature: Both rated -55°C ~ 125°C
• Series Compatibility: Both belong to Harwin Inc.'s Datamate L-Tek series
• Flammability Rating: Both meet UL94 V-0 material flammability requirements

The M80-8400742 represents the active production equivalent to the obsolete B5741-107-F-N-0, with identical mechanical and electrical interface characteristics for mating applications.

Parameter Comparison

Engineering Selection Recommendations

The M80-8400742 is the direct active equivalent for the obsolete B5741-107-F-N-0. Selection of M80-8400742 is supported by:

• Product Status: M80-8400742 maintains active production status, ensuring long-term availability and supply chain continuity
• Regulatory Compliance: M80-8400742 achieves ROHS3 compliance, whereas B5741-107-F-N-0 is RoHS non-compliant, making M80-8400742 the preferred choice for applications subject to RoHS requirements
• Interface Compatibility: Identical mating pitch, contact configuration, and mechanical dimensions ensure direct substitution without circuit board redesign
• Certification Alignment: Both parts maintain UL94 V-0 flammability rating and EAR99 export classification

For applications requiring the B5741-107-F-N-0, transition to M80-8400742 is the appropriate engineering solution.

Frequently Asked Questions (FAQ)

Q: Can M80-8400742 directly replace B5741-107-F-N-0 on existing circuit boards?

A: Yes. Both connectors share identical mating pitch (0.079"), position count (7), mounting type (through-hole), and mechanical envelope dimensions. No board redesign is required.

Q: What is the primary difference between these two parts?

A: B5741-107-F-N-0 is obsolete, while M80-8400742 is in active production. Additionally, M80-8400742 is ROHS3 compliant, whereas B5741-107-F-N-0 is RoHS non-compliant.

Q: Are there differences in contact post specifications?

A: Yes. B5741-107-F-N-0 has a contact length post of 0.051" (1.30mm) with tin-lead finish, while M80-8400742 has a contact length post of 0.126" (3.20mm) with tin finish. These differences do not affect mating compatibility but may impact PCB layout considerations for post insertion depth.

Q: What packaging is available for M80-8400742?

A: M80-8400742 is supplied in tube packaging, whereas B5741-107-F-N-0 packaging information is not specified.

Q: Are voltage and current ratings identical?

A: B5741-107-F-N-0 is rated 120V at 3A. M80-8400742 is rated 800V with current rating not specified. The higher voltage rating of M80-8400742 provides additional design margin for high-voltage applications.

Q: What is the insulation material difference?

A: B5741-107-F-N-0 uses polyester glass-filled insulation, while M80-8400742 uses polyamide (PA46) nylon 4/6 glass-filled insulation. Both materials meet UL94 V-0 flammability requirements.