M50-4301145 Equivalent & Substitute Parts

Part Overview

The M50-4301145 is a 22-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 1A current with an operating temperature range of -40°C to 105°C. The part is currently obsolete, making identification of equivalent and substitute components essential for ongoing system support and new design implementations.

Substiute Parts

M50-4301145

Harwin Inc.In Stock: 940M50-4301145 Datasheet

Current PartRFQ

M50-4301245

Harwin Inc.In Stock: 906M50-4301245 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the M50-4301145 is determined by the following critical parameters that must remain consistent:

• Connector Type & Contact Type: Receptacle with female socket contacts
• Pitch Specification: 0.050" (1.27mm) mating pitch with 0.050" row spacing
• Mounting Technology: Surface mount configuration
• Fastening Mechanism: Push-pull fastening system
• Contact Material & Finish: Gold-plated phosphor bronze contacts
• Electrical Rating: 1A current capacity
• Environmental Compliance: UL94 V-0 flammability, ROHS3 compliance, REACH unaffected status
• Operating Range: -40°C to 105°C temperature specification

The M50-4301245 qualifies as a substitute based on these parameters. The primary difference is the position count (24 positions versus 22 positions), which represents a higher-density variant within the same Archer M50 series maintaining identical pitch, mounting, and electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The M50-4301245 is the designated manufacturer substitute for the obsolete M50-4301145. Both components maintain identical electrical, mechanical, and environmental specifications within the Archer M50 series. The M50-4301245 is currently in active production status with confirmed inventory availability, whereas the M50-4301145 is obsolete.

Selection of the M50-4301245 is supported by:

• Identical pitch and row spacing geometry (0.050" mating pitch)
• Matching electrical ratings (1A current capacity)
• Equivalent environmental compliance (UL94 V-0, ROHS3, REACH unaffected)
• Identical operating temperature range (-40°C to 105°C)
• Same contact material and gold finish specifications
• Identical mounting technology (surface mount, push-pull fastening)

The 24-position configuration of the M50-4301245 provides additional contact capacity while maintaining full compatibility with the Archer M50 series platform.

Frequently Asked Questions (FAQ)

Q: Can the M50-4301245 directly replace the M50-4301145 in existing designs?

A: The M50-4301245 is mechanically and electrically compatible with the M50-4301145 in terms of pitch, mounting, fastening, and electrical ratings. The primary design consideration is the increased position count (24 versus 22), which requires verification that the mating connector and PCB layout can accommodate the additional positions.

Q: What is the key difference between these two connectors?

A: The M50-4301245 provides 24 contact positions compared to the 22 positions of the M50-4301145. All other specifications including pitch, row spacing, current rating, temperature range, and contact finish remain identical.

Q: Are there any compliance or certification differences?

A: Both connectors maintain identical compliance certifications: UL94 V-0 flammability rating, ROHS3 compliance, and REACH unaffected status. Moisture sensitivity level is identical at MSL 1 (Unlimited).

Q: What is the product status difference?

A: The M50-4301145 is obsolete and no longer in production. The M50-4301245 is active and in current production with confirmed inventory availability.

Q: Are the mated stacking heights identical?

A: Both connectors support identical mated stacking heights of 6mm and 6.5mm.