B5741-122-F-N-2 Equivalent & Substitute Parts

Part Overview

The B5741-122-F-N-2 is a 22-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 a locking ramp fastening mechanism. The part is currently obsolete, making identification of active equivalent models essential for ongoing production and maintenance applications requiring this connector type.

Substiute Parts

B5741-122-F-N-2

Harwin Inc.In Stock: 996B5741-122-F-N-2 Datasheet

Current PartRFQ

M80-8402245

Harwin Inc.In Stock: 1073M80-8402245 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The M80-8402245 qualifies as a direct substitute for the B5741-122-F-N-2 based on the following critical parameters that determine functional compatibility:

• Connector Type & Contact Configuration: Both are 22-position receptacle connectors with female socket contacts
• Mating Pitch: Identical 0.079" (2.00mm) pitch ensures mechanical and electrical compatibility
• Mounting & Termination: Both use through-hole solder termination with locking ramp fastening
• Contact Material & Finish: Both feature beryllium copper contacts with gold plating on mating surfaces
• Operating Temperature Range: Both rated -55°C ~ 125°C
• Series Compatibility: Both belong to Harwin Inc.'s Datamate L-Tek series
• Applications: Both support automotive, general purpose, and military applications

The M80-8402245 represents the active production equivalent, with improved compliance status and higher voltage rating capability.

Parameter Comparison

Engineering Selection Recommendations

The M80-8402245 is the active production equivalent for the obsolete B5741-122-F-N-2. Selection of the M80-8402245 provides the following advantages:

• Product Status: Active production status ensures long-term availability and supply chain continuity
• Regulatory Compliance: ROHS3 compliance meets current environmental and regulatory requirements, whereas the B5741-122-F-N-2 is RoHS non-compliant
• Voltage Rating: The M80-8402245 supports 800V operation compared to 120V for the original part, providing greater electrical capability for demanding applications
• Mechanical Compatibility: Identical pitch, position count, mounting type, and fastening mechanism ensure direct physical and electrical interchangeability
• Contact Specifications: Matching contact material, finish type, and finish thickness maintain signal integrity and reliability

For new designs or production transitions, the M80-8402245 is the specified replacement. For legacy system maintenance requiring the B5741-122-F-N-2, the M80-8402245 provides full functional equivalence with improved compliance status.

Frequently Asked Questions (FAQ)

Q: Can M80-8402245 be used as a direct replacement for B5741-122-F-N-2 in existing assemblies?

A: Yes. Both connectors share identical mating pitch (0.079"), position count (22), contact type (female socket), mounting method (through-hole), and termination type (solder). The M80-8402245 is mechanically and electrically interchangeable with the B5741-122-F-N-2.

Q: What are the differences between these two connectors?

A: The primary differences are product status, compliance, and voltage rating. The M80-8402245 is an active production part with ROHS3 compliance and 800V voltage rating, while the B5741-122-F-N-2 is obsolete, RoHS non-compliant, and rated for 120V. The M80-8402245 also features a longer contact post (0.126" vs 0.051") and different insulation material composition.

Q: Are there packaging differences between these parts?

A: The B5741-122-F-N-2 packaging information is not specified in available data. The M80-8402245 is supplied in tube packaging. Confirm packaging requirements with your procurement specifications.

Q: Do both connectors meet the same temperature and environmental specifications?

A: Yes. Both connectors operate across -55°C to 125°C, carry UL94 V-0 flammability rating, have MSL 1 (unlimited moisture sensitivity), and share identical REACH and ECCN classifications.

Q: Which part should be specified for new designs?

A: The M80-8402245 should be specified for all new designs. It is the active production equivalent with current regulatory compliance and superior electrical ratings.