Equivalent & Substitute Parts for M50-3601142

Part Overview

The M50-3601142 is a surface mount rectangular connector header manufactured by Harwin Inc., part of the Archer M50 series. This component features 22 positions arranged in 2 rows with 0.050" (1.27mm) pitch, designed for board-to-board or cable applications. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and procurement planning.

Substiute Parts

M50-3601142

Harwin Inc.In Stock: 1179M50-3601142 Datasheet

Current PartRFQ

M50-3601242

Harwin Inc.In Stock: 1452M50-3601242 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The M50-3601242 qualifies as a substitute for the M50-3601142 based on the following alignment of critical electrical and mechanical parameters:

Matching Parameters:

• Manufacturer: Harwin Inc. (same manufacturer ensures design compatibility)
• Series: Archer M50 (same connector family)
• Pitch - Mating: 0.050" (1.27mm) (identical contact spacing)
• Number of Rows: 2 (same row configuration)
• Mounting Type: Surface Mount (identical PCB mounting method)
• Contact Type: Male Pin (same contact gender)
• Current Rating: 1A (equivalent current capacity)
• Operating Temperature: -40°C ~ 105°C (identical thermal range)
• Contact Finish - Mating: Gold (same mating surface treatment)
• Insulation Material: Thermoplastic (same material composition)
• RoHS Status: ROHS3 Compliant (equivalent compliance level)

Difference:

• Number of Positions: 24 (versus 22 in the main part)

The M50-3601242 provides additional contact positions while maintaining full electrical and mechanical compatibility with the M50-3601142 footprint and mating interface.

Parameter Comparison

Engineering Selection Recommendations

The M50-3601242 is the active production equivalent for the obsolete M50-3601142. Both components maintain identical electrical specifications, thermal ratings, and compliance certifications (ROHS3, UL94 V-0, REACH Unaffected). The M50-3601242 is currently in active production status with confirmed inventory availability, whereas the M50-3601142 is obsolete.

The primary design consideration is the position count difference: the M50-3601242 provides 24 contact positions compared to 22 in the original part. This difference does not affect mechanical or electrical compatibility with mating connectors, as the additional positions extend the connector length proportionally while maintaining identical pitch and row spacing. PCB layout modifications may be required to accommodate the increased connector footprint.

Frequently Asked Questions (FAQ)

Q: Can the M50-3601242 directly replace the M50-3601142 in existing designs?

A: The M50-3601242 is mechanically and electrically compatible with the M50-3601142. However, the increased position count (24 versus 22) results in a longer connector body. PCB footprint verification is required before implementation.

Q: What is the significance of the position count difference?

A: The additional 2 positions in the M50-3601242 extend the overall connector length while maintaining identical pitch (0.050"), row spacing, and contact specifications. This allows for additional signal or power routing if required by the application.

Q: Are the mating interfaces identical between these two parts?

A: Yes. Both connectors feature identical pitch (0.050"), row spacing (0.050"), contact length (0.118"), and contact geometry. Mating connectors designed for the M50-3601142 will interface with the M50-3601242 without modification.

Q: What compliance certifications apply to both parts?

A: Both the M50-3601142 and M50-3601242 are ROHS3 compliant, UL94 V-0 rated, and REACH unaffected. Moisture sensitivity level is 1 (unlimited) for both components.

Q: Why is the M50-3601142 listed as obsolete?

A: The M50-3601142 has been discontinued by Harwin Inc. The M50-3601242 represents the active production alternative within the Archer M50 series.