Equivalent & Substitute Parts for M20-9711945

Part Overview

The M20-9711945 is a rectangular connector header manufactured by Harwin Inc., designed for through-hole, right-angle mounting with 19 positions at 0.100" (2.54mm) pitch. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity. Substitute parts must maintain functional compatibility across connector geometry, electrical ratings, and mechanical mounting characteristics.

Substiute Parts

M20-9711945

Harwin Inc.In Stock: 965M20-9711945 Datasheet

Current PartRFQ

0022288190

MolexIn Stock: 7430022288190 Datasheet

MFR RecommendedRFQ

0022288192

MolexIn Stock: 9200022288192 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the M20-9711945 is determined by the following critical parameters:

• Pitch and Position Count: Substitute parts must maintain 0.100" (2.54mm) pitch with 19 positions in a single row to ensure mechanical and electrical compatibility with mating connectors.
• Mounting Configuration: Right-angle, through-hole mounting is required to preserve PCB layout and assembly compatibility.
• Contact Type and Termination: Male pin contacts with solder termination are mandatory for functional equivalence.
• Fastening Mechanism: Push-pull fastening type must be preserved for connector retention.
• Compliance Standards: RoHS3 compliance and UL94 V-0 flammability rating are required for regulatory and safety alignment.
• Environmental Ratings: Operating temperature range and moisture sensitivity level must meet or exceed the original specification.

The substitute parts listed below satisfy all critical substitution criteria while maintaining active product status from their respective manufacturers.

Parameter Comparison

Engineering Selection Recommendations

Both Molex substitute parts (0022288190 and 0022288192) are active products with ROHS3 compliance and UL94 V-0 flammability certification, meeting regulatory requirements for the obsolete M20-9711945.

0022288190 (Molex KK254 Series): Features tin plating on mating contacts. This part maintains all critical mechanical and electrical parameters for direct substitution. Tin contact finish provides cost efficiency while preserving electrical performance within the specified current rating.

0022288192 (Molex KK254 Series): Features gold plating on mating contacts with tin plating on posts. This configuration aligns with the original M20-9711945 gold contact finish specification, providing enhanced corrosion resistance and contact reliability characteristics consistent with the original design intent.

Both parts are available in active inventory and support the same board-to-board or cable connection applications as the original component.

Frequently Asked Questions (FAQ)

Q: Can 0022288190 and 0022288192 be used interchangeably with M20-9711945?

A: Both Molex parts satisfy the critical substitution parameters: 19-position, 0.100" pitch, right-angle through-hole mounting, solder termination, and push-pull fastening. The primary difference is contact finish. 0022288192 matches the original gold mating contact finish, while 0022288190 uses tin. Selection depends on application requirements for contact finish performance.

Q: What are the dimensional differences between the original and substitute parts?

A: Contact length variations exist: the M20-9711945 mating contact is 0.276" (7.00mm) versus 0.244" (6.20mm) for both Molex substitutes. Insulation height differs slightly: 0.100" (2.54mm) for the original versus 0.098" (2.50mm) for substitutes. These variations are within acceptable tolerances for standard 2.54mm pitch connector systems and do not affect mating compatibility.

Q: Are both substitute parts RoHS3 compliant?

A: Yes. Both 0022288190 and 0022288192 are ROHS3 compliant with UL94 V-0 flammability ratings, meeting the compliance profile of the original M20-9711945.

Q: What is the difference between "Cuttable" and "Breakaway" connector types?

A: Both designations refer to headers that can be separated into smaller segments. The functional capability is equivalent for applications requiring position reduction or custom configurations.

Q: Which substitute part should be selected for new designs?

A: Selection is based on contact finish requirements. For applications requiring gold contact finish performance, 0022288192 is the direct equivalent. For general-purpose applications where tin contact finish is acceptable, 0022288190 provides equivalent functionality at lower cost.