Equivalent & Substitute Parts for M20-9962945

Part Overview

The M20-9962945 is a rectangular connector header manufactured by Harwin Inc., designed for through-hole, right-angle board-to-board or cable applications. This 29-position connector operates at 0.100" (2.54mm) pitch with male pin contacts and solder termination. The part is classified as obsolete, making identification of equivalent and substitute components essential for ongoing design support and procurement continuity.

Substiute Parts

M20-9962945

Harwin Inc.In Stock: 932M20-9962945 Datasheet

Current PartRFQ

M20-9963645

Harwin Inc.In Stock: 1428M20-9963645 Datasheet

MFR RecommendedRFQ

0022288290

MolexIn Stock: 8210022288290 Datasheet

MFR RecommendedRFQ

0022288292

MolexIn Stock: 8400022288292 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the M20-9962945 is determined by the following critical parameters:

• Pitch - Mating: 0.100" (2.54mm) — must match exactly for mechanical and electrical compatibility
• Contact Type: Male Pin — determines mating interface requirements
• Mounting Type: Through Hole, Right Angle — establishes PCB assembly method
• Termination: Solder — specifies connection method to PCB
• Number of Positions: 29 — defines connector capacity
• Material Flammability Rating: UL94 V-0 — ensures compliance with safety standards
• RoHS Status: ROHS3 Compliant — confirms environmental compliance

Substitute parts are grouped into two categories:

Category 1: Direct Position Match (29-Position) Parts maintaining identical position count, pitch, and mounting configuration. These provide direct functional replacement without design modification.

Category 2: Higher Position Count (36-Position) Parts with increased position capacity but identical pitch and mounting type. These allow design flexibility for expanded connector requirements while maintaining mechanical and electrical compatibility at the mating interface.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (29-Position Requirement):

The Molex 0022288290 and 0022288292 provide functional equivalence to the M20-9962945 at the 29-position configuration. Both parts maintain identical pitch, contact type, mounting method, and termination. All three parts meet UL94 V-0 flammability requirements and ROHS3 compliance. The Molex parts are currently in active production status, ensuring long-term availability and supply chain stability compared to the obsolete Harwin original.

Contact finish differences exist: the M20-9962945 and 0022288292 feature gold mating surfaces, while 0022288290 uses tin. Contact length variations are minor (0.240" vs. 0.244" mating length; 0.118" vs. 0.120" post length) and fall within typical connector tolerance ranges. Insulation height differences (0.100" vs. 0.098") are similarly marginal.

For Expanded Capacity (36-Position Alternative):

The M20-9963645 from Harwin Inc. offers a higher-position variant (36 positions) while maintaining identical pitch, mounting type, and termination specifications. This part shares the same series designation (M20) and identical contact dimensions with the original M20-9962945. The M20-9963645 is in active production status and provides design flexibility for applications requiring additional connector positions without changing the fundamental mechanical or electrical interface.

Frequently Asked Questions (FAQ)

Q: Can the M20-9963645 (36-position) be used as a direct replacement for the M20-9962945 (29-position)?

A: The M20-9963645 maintains identical pitch (0.100"), mounting type (through-hole right-angle), and termination method (solder). Mechanically and electrically, it is compatible at the mating interface. However, the increased position count requires PCB layout modification to accommodate the additional connector positions. Use this part only when design allows for the expanded footprint.

Q: What are the key differences between the Molex 0022288290 and 0022288292?

A: Both Molex parts are 29-position connectors with identical pitch and mounting specifications. The primary difference is contact finish: 0022288290 features tin mating surface finish, while 0022288292 features gold mating surface finish. The M20-9962945 original uses gold finish, making 0022288292 the closer match in this regard.

Q: Are there operating temperature specifications for the Molex substitute parts?

A: Operating temperature data is not provided in the Molex part specifications. The original M20-9962945 operates from -40°C to 105°C. Verify Molex part thermal performance requirements with the manufacturer if operating temperature range is critical to your application.

Q: Do all substitute parts meet the same compliance standards as the original?

A: All substitute parts listed (M20-9963645, 0022288290, 0022288292) meet UL94 V-0 flammability requirements and ROHS3 compliance, matching the original M20-9962945 specifications.

Q: What is the significance of the contact length differences between parts?

A: Contact length variations (0.240" vs. 0.244" mating length; 0.118" vs. 0.120" post length) represent minor dimensional differences typical in connector manufacturing. These variations fall within standard tolerance ranges and do not affect functional compatibility for standard board-to-board or cable applications.