Harwin M20-9960746 Equivalent & Substitute Parts

Part Overview

The Harwin M20-9960746 is an active rectangular connector header designed for through-hole, right-angle mounting applications. This 7-position connector operates at 0.100" (2.54mm) pitch and supports 3A per contact with solder termination. The connector features unshrouded design with male pin contacts and is suitable for board-to-board or cable interconnection. Finding equivalent parts may be necessary due to inventory constraints, lead time requirements, or specific application performance needs while maintaining electrical and mechanical compatibility.

Substiute Parts

M20-9960746

Harwin Inc.In Stock: 1019M20-9960746 Datasheet

Current PartRFQ

61300711021

Würth ElektronikIn Stock: 152161300711021 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Harwin M20-9960746 is determined by strict alignment of the following critical parameters:

• Pitch and Position Compatibility: Substitute parts must maintain 0.100" (2.54mm) mating pitch with 7 positions in a single row configuration to ensure mechanical fit with mating connectors and PCB layouts.
• Mounting and Termination: Through-hole, right-angle mounting with solder termination is required for direct replacement in existing designs.
• Contact Configuration: Male pin contacts with square contact shape and unshrouded design must be preserved.
• Electrical Performance: Current rating of 3A per contact and operating temperature range must meet or exceed the original specification.
• Compliance Standards: RoHS3 compliance and UL94 V-0 flammability rating are mandatory for equivalent parts.

The Würth Elektronik 61300711021 qualifies as a substitute based on these parameters. While minor variations exist in contact finish (gold vs. tin), contact material (copper alloy vs. brass), and maximum operating temperature (125°C vs. 105°C), these differences represent improvements or equivalent performance that do not compromise substitutability.

Parameter Comparison

Engineering Selection Recommendations

Both the Harwin M20-9960746 and Würth Elektronik 61300711021 are active products with full RoHS3 compliance and UL94 V-0 flammability certification. The Würth Elektronik substitute provides equivalent mechanical and electrical performance with the following considerations:

The Würth Elektronik part features gold-plated mating contacts compared to tin plating on the Harwin part. Gold plating provides enhanced corrosion resistance and contact reliability in applications subject to environmental exposure or extended storage periods. The copper alloy contact material in the Würth part is functionally equivalent to the brass contacts in the Harwin part for this connector class.

The Würth Elektronik part supports an extended operating temperature range of -40°C to 125°C, compared to -40°C to 105°C for the Harwin part. This extended range provides additional thermal margin for applications operating near the upper temperature limit.

Both parts maintain identical pitch, position count, mounting configuration, and current rating specifications. Direct substitution is electrically and mechanically compatible for applications designed around the Harwin M20-9960746.

Frequently Asked Questions (FAQ)

Q: Can the Würth Elektronik 61300711021 be used as a direct replacement for the Harwin M20-9960746?

A: Yes. Both connectors share identical mating pitch (0.100" / 2.54mm), position count (7), mounting type (through-hole right-angle), contact configuration (male pin, square shape), and current rating (3A per contact). Mechanical and electrical compatibility is maintained.

Q: What is the difference between tin and gold contact finishes?

A: Tin plating provides cost-effective contact protection suitable for standard applications. Gold plating offers superior corrosion resistance and contact reliability, particularly in environments with humidity, temperature cycling, or extended storage. For this connector class, both finishes are suitable for general board-to-board and cable interconnection applications.

Q: Does the extended operating temperature range of the Würth part affect compatibility?

A: No. The Würth Elektronik part's extended range (-40°C to 125°C) is a superset of the Harwin part's range (-40°C to 105°C). Applications designed for the Harwin part will operate within the Würth part's rated temperature envelope.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the Harwin M20-9960746 and Würth Elektronik 61300711021 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement.

Q: What packaging is available for the substitute part?

A: The Würth Elektronik 61300711021 is supplied in bulk packaging, compared to the standard packaging for the Harwin part. Confirm packaging requirements with your procurement specifications.