Molex 0022281031 Equivalent & Substitute Parts

Part Overview

The Molex 0022281031 is a rectangular connector header designed for through-hole, right-angle board-to-board or cable applications with 3 positions at 0.100" (2.54mm) pitch. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support, maintenance, and production continuity. The part features shrouded single-wall construction with friction lock fastening and gold-plated mating contacts suitable for automotive, medical, telecommunications, and general-purpose applications.

Substiute Parts

0022281031

MolexIn Stock: 9870022281031 Datasheet

Current PartRFQ

3-641127-3

TE Connectivity AMP ConnectorsIn Stock: 39033-641127-3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Molex 0022281031 is determined by strict equivalence across the following critical parameters:

• Pitch - Mating: 0.100" (2.54mm) — determines mechanical and electrical compatibility
• Number of Positions: 3 — defines circuit connectivity
• Number of Rows: 1 — establishes physical layout
• Mounting Type: Through Hole, Right Angle — ensures PCB integration compatibility
• Shrouding: Shrouded - 1 Wall — maintains mechanical protection and keying
• Termination: Solder — specifies connection method
• Fastening Type: Friction Lock — defines mating mechanism
• Contact Type: Male Pin — establishes gender compatibility
• Contact Finish - Mating: Gold — ensures electrical performance and corrosion resistance

The TE Connectivity AMP Connectors part 3-641127-3 meets all critical substitution criteria. While minor variations exist in insulation material composition, contact post length, and insulation height, these differences do not affect functional equivalence for applications requiring the specified electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity AMP Connectors 3-641127-3 is the primary substitute for the obsolete Molex 0022281031. Selection is based on the following engineering criteria:

Product Status: The TE Connectivity part maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete Molex component.

Compliance & Certifications: Both parts meet UL94 V-0 flammability requirements and maintain MSL 1 (Unlimited) moisture sensitivity ratings. The TE Connectivity part is RoHS Compliant, while the Molex part is ROHS3 Compliant. Both are classified under identical ECCN (EAR99) and HTSUS (8536.69.4040) codes.

Functional Equivalence: Critical electrical and mechanical parameters are identical, including pitch, position count, mounting configuration, shrouding, termination method, and fastening mechanism. Contact finish specifications match across mating surfaces.

Minor Variations: The TE Connectivity part features a slightly longer contact post (0.140" vs. 0.120") and different insulation material composition (thermoplastic vs. glass-filled polyamide). These variations do not compromise functional compatibility for standard through-hole solder applications.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 3-641127-3 directly replace the Molex 0022281031 in existing designs?

A: Yes. Both parts share identical pitch (0.100"), position count (3), mounting type (through-hole right-angle), shrouding configuration (shrouded 1-wall), and contact specifications. The slightly longer contact post on the TE part (0.140" vs. 0.120") does not affect PCB hole compatibility or solder joint formation.

Q: What is the significance of the different insulation materials?

A: The Molex part uses glass-filled polyamide (PA/nylon), while the TE part uses thermoplastic. Both materials meet UL94 V-0 flammability requirements and provide equivalent mechanical and electrical insulation properties for this connector class. Material selection does not affect functional performance in standard applications.

Q: Are there any compliance or regulatory differences between these parts?

A: Both parts are classified under identical ECCN (EAR99) and HTSUS (8536.69.4040) codes. The Molex part is ROHS3 Compliant, and the TE part is RoHS Compliant. Both maintain MSL 1 (Unlimited) moisture sensitivity ratings. No regulatory barriers exist for substitution.

Q: Why is the Molex part listed as obsolete?

A: Obsolescence reflects the manufacturer's discontinuation of the KK254/42228 series. The TE Connectivity MTA-100 series represents the active equivalent in the market, ensuring continued availability and manufacturing support.

Q: Are there packaging considerations for the TE Connectivity substitute?

A: The TE Connectivity part is supplied in bulk packaging, compared to the Molex part's unspecified packaging. Verify bulk quantity requirements align with procurement and assembly processes before ordering.