M50-4304145 Equivalent & Substitute Parts

Part Overview

The M50-4304145 is an 82-position receptacle connector from Harwin Inc.'s Archer M50 series, designed for board-to-board applications with 0.050" (1.27mm) pitch spacing. This surface mount connector features gold-plated contacts, push-pull fastening, and is rated for -40°C to 105°C operation. The part is currently obsolete, making identification of suitable alternatives essential for ongoing system support and new design implementations.

Substiute Parts

M50-4304145

Harwin Inc.In Stock: 1075M50-4304145 Datasheet

Current PartRFQ

M50-4302545

Harwin Inc.In Stock: 1063M50-4302545 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the M50-4304145 is constrained by the following critical parameters:

• Series Compatibility: Both main and substitute parts must belong to the Harwin Archer M50 series to ensure mechanical and electrical interchangeability
• Pitch Specification: Mating pitch of 0.050" (1.27mm) is mandatory for connector alignment and contact engagement
• Mounting Technology: Surface mount termination is required for PCB assembly compatibility
• Contact Configuration: Female socket contacts with gold plating and phosphor bronze material must be maintained
• Electrical Ratings: Current rating of 1A and operating temperature range of -40°C to 105°C define the functional envelope
• Fastening Mechanism: Push-pull fastening type ensures consistent mating and unmating performance

The M50-4302545 qualifies as a substitute based on these parameters. However, the critical difference is the position count: the substitute provides 50 positions versus the original 82 positions. This substitution is valid only when system design permits reduced connector density.

Parameter Comparison

Engineering Selection Recommendations

The M50-4302545 is the manufacturer-recommended substitute for the obsolete M50-4304145. Selection of this alternative is supported by the following factors:

• Product Status: The M50-4302545 maintains active product status with current manufacturing support, ensuring long-term availability and supply chain continuity
• Regulatory Compliance: Both parts maintain identical RoHS3 and REACH compliance certifications, satisfying environmental and regulatory requirements
• Series Continuity: Both connectors belong to the Archer M50 series, preserving mechanical and electrical compatibility within the product family
• Electrical and Thermal Ratings: Identical current rating (1A) and operating temperature range (-40°C to 105°C) ensure functional equivalence in standard applications

The primary design consideration is the reduction in position count from 82 to 50. This substitution is applicable only when system architecture permits the use of a lower-density connector or when connector consolidation is acceptable within the application requirements.

Frequently Asked Questions (FAQ)

Q: Can the M50-4302545 be used as a direct replacement for the M50-4304145?

A: The M50-4302545 is mechanically and electrically compatible with the M50-4304145 within the constraints of connector density. The substitute provides 50 positions instead of 82. Direct replacement is possible only if the application design accommodates the reduced position count or if signal routing can be consolidated.

Q: What are the key compatibility factors between these connectors?

A: Compatibility is determined by series membership (Archer M50), mating pitch (0.050"), mounting technology (surface mount), contact configuration (female socket, gold-plated), fastening mechanism (push-pull), and electrical ratings (1A, -40°C to 105°C). All these parameters are identical between the main part and substitute.

Q: Does the position count difference affect mechanical fit?

A: The physical footprint and mating interface dimensions remain consistent across the Archer M50 series for connectors with the same pitch and row configuration. The position count difference affects only the number of available contact positions, not the mechanical envelope or mounting compatibility.

Q: Are there packaging differences between these parts?

A: The M50-4304145 packaging is not specified in the available data. The M50-4302545 is supplied in tube packaging. Packaging format should be confirmed with the supplier based on procurement requirements.

Q: What is the compliance status of the substitute part?

A: The M50-4302545 maintains ROHS3 compliance, REACH unaffected status, and UL94 V-0 flammability rating, identical to the original part. Moisture sensitivity level is 1 (unlimited), indicating no special handling requirements during storage or assembly.

Q: Why is the M50-4304145 obsolete?

A: Product obsolescence is determined by the manufacturer. The M50-4302545 remains in active production and is the recommended alternative for new designs and ongoing support of systems previously using the 82-position variant.