TE Connectivity AMP Connectors 3-644748-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 3-644748-1 is a rectangular connector header designed for through-hole mounting applications. This connector features a vertical orientation with 3 positions at 0.100" (2.54mm) pitch, supporting board-to-cable/wire connections with unshrouded male pin contacts. The product is classified as obsolete, making identification of equivalent substitute parts essential for ongoing design support, maintenance, and production continuity.

Substiute Parts

3-644748-1

TE Connectivity AMP ConnectorsIn Stock: 9233-644748-1 Datasheet

Current PartRFQ

0022112031

MolexIn Stock: 10430022112031 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 3-644748-1 is determined by alignment of the following critical parameters:

Primary Substitution Criteria:

• Connector type: Header
• Contact type: Male Pin
• Number of positions: 3
• Pitch - mating: 0.100" (2.54mm)
• Mounting type: Through Hole
• Shrouding: Unshrouded
• Material flammability rating: UL94 V-0
• Moisture sensitivity level: 1 (Unlimited)

Secondary Compatibility Factors:

• Operating temperature range compatibility
• Voltage rating compatibility
• Contact finish and material specifications
• Termination method compatibility
• Insulation material properties

The Molex 0022112031 connector satisfies the primary substitution criteria as a functionally equivalent rectangular connector header with matching pitch, position count, mounting configuration, and electrical ratings. Both connectors maintain UL94 V-0 flammability compliance and MSL 1 moisture sensitivity classification, supporting direct substitution in applications requiring these specifications.

Parameter Comparison

Engineering Selection Recommendations

Substitution Feasibility:

The Molex 0022112031 connector provides functional equivalence to the obsolete TE Connectivity 3-644748-1 based on matching electrical and mechanical specifications. Both connectors maintain identical pitch (0.100"/2.54mm), position count (3), mounting configuration (through-hole), and contact geometry (square male pins). Compliance certifications align across both parts, with UL94 V-0 flammability ratings and MSL 1 moisture sensitivity classifications present on both connectors.

Product Status Consideration:

The TE Connectivity 3-644748-1 is classified as obsolete, while the Molex 0022112031 maintains active product status. This distinction supports the Molex part as the preferred substitute for new designs, ongoing production, and long-term component availability.

Compliance and Certification:

Both connectors satisfy RoHS compliance requirements and carry identical ECCN (EAR99) and HTSUS (8536.69.4040) classifications, supporting direct substitution in regulated applications without additional compliance documentation.

Physical Dimension Variations:

The Molex substitute exhibits minor dimensional differences in contact post length (0.135" versus 0.110") and overall contact length (0.560" versus 0.505"), with corresponding insulation height increase (0.130" versus 0.100"). These variations remain within standard connector design tolerances and do not preclude functional substitution in board-to-cable applications.

Contact Finish Difference:

The Molex part features gold mating contact finish compared to tin on the TE Connectivity original. Gold plating provides enhanced corrosion resistance and contact reliability in applications subject to environmental exposure or extended storage periods.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0022112031 directly replace the TE Connectivity 3-644748-1 in existing applications?

A: Yes. Both connectors share identical pitch (0.100"/2.54mm), position count (3), mounting type (through-hole), and contact configuration (unshrouded male pins). Electrical ratings and flammability compliance are equivalent, supporting direct substitution in board-to-cable connection applications.

Q: What are the key differences between these two connectors?

A: Primary differences include contact post length (Molex 0.135" versus TE 0.110"), overall contact length (Molex 0.560" versus TE 0.505"), insulation height (Molex 0.130" versus TE 0.100"), mating contact finish (Molex gold versus TE tin), and product status (Molex active versus TE obsolete). Insulation material also differs (Molex polyamide/nylon versus TE thermoplastic).

Q: Are there any compliance or certification concerns with substitution?

A: No. Both connectors maintain UL94 V-0 flammability ratings, MSL 1 moisture sensitivity classification, and identical ECCN/HTSUS codes. RoHS compliance is present on both parts, with the Molex connector meeting ROHS3 specifications.

Q: Does the gold contact finish on the Molex part affect compatibility?

A: No. Gold plating on mating contacts is a standard upgrade that enhances corrosion resistance and contact reliability without affecting electrical or mechanical compatibility. The tin-plated post finish remains consistent between both connectors.

Q: What is the significance of the TE Connectivity part being obsolete?

A: Obsolete status indicates the TE Connectivity 3-644748-1 is no longer manufactured or supported by the original supplier. The Molex 0022112031 maintains active product status, ensuring ongoing availability, technical support, and supply chain continuity for new designs and production requirements.

Q: Are the dimensional differences between these connectors critical for PCB layout?

A: The dimensional variations (contact post length and insulation height) are minor and fall within standard connector design tolerances. PCB footprints designed for 0.100" (2.54mm) pitch headers accommodate both connectors without modification. However, applications with tight vertical clearance constraints should verify the increased insulation height (0.130" versus 0.100") of the Molex part.

Q: Can these connectors be used interchangeably in automotive or medical applications?

A: The Molex 0022112031 is specified for automotive, medical, and telecommunications applications. The TE Connectivity 3-644748-1 is designated for general-purpose applications. Substitution in automotive or medical applications requires verification that the Molex part meets specific application standards and qualification requirements beyond general compliance certifications.