TE Connectivity 4-644329-2 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 4-644329-2 is a 12-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 18 AWG discrete or ribbon cable. This connector features a tin contact finish, closed-end design, and free-hanging in-line mounting configuration with locking ramp fastening.

The 4-644329-2 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production and field service requirements for systems utilizing this connector type.

Substiute Parts

4-644329-2

TE Connectivity AMP ConnectorsIn Stock: 7764-644329-2 Datasheet

Current PartRFQ

4-644860-2

TE Connectivity AMP ConnectorsIn Stock: 8124-644860-2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 4-644329-2 is determined by strict equivalence across the following critical parameters:

• Connector Type & Contact Configuration: Receptacle with female socket contacts
• Position Count & Pitch: 12 positions at 0.156" (3.96mm) pitch
• Termination Technology: IDC cable termination for 18 AWG wire
• Mechanical Interface: Free-hanging in-line mounting with locking ramp fastening
• Electrical Properties: Tin contact finish with 80.0µin (2.03µm) thickness
• Series Designation: MTA-156 series compatibility

The substitute part 4-644860-2 meets all these criteria and is therefore electrically and mechanically interchangeable with the 4-644329-2.

Parameter Comparison

Engineering Selection Recommendations

The 4-644860-2 is the direct substitute for the obsolete 4-644329-2. Both parts are manufactured by TE Connectivity and belong to the MTA-156 series with identical electrical and mechanical specifications.

Primary Advantage: The 4-644860-2 carries Active product status, ensuring continued availability and manufacturer support. The 4-644329-2 is classified as Obsolete and should not be specified for new designs or long-term production commitments.

Compliance Status: Both parts meet RoHS requirements. The 4-644329-2 is ROHS3 Compliant, while the 4-644860-2 is RoHS Compliant. Both are classified under ECCN EAR99 and HTSUS code 8536.69.8000, indicating equivalent regulatory treatment.

Packaging Consideration: The 4-644860-2 is supplied in Bulk packaging, whereas the 4-644329-2 packaging designation is not specified. This difference does not affect electrical or mechanical compatibility.

For applications currently using the 4-644329-2, direct substitution with the 4-644860-2 is supported without design modification or re-qualification.

Frequently Asked Questions (FAQ)

Q: Can the 4-644860-2 be used as a direct replacement for the 4-644329-2 in existing assemblies?

A: Yes. The 4-644860-2 is electrically and mechanically identical to the 4-644329-2. All critical parameters including connector type, position count, pitch, termination method, wire gauge, contact finish, and mounting configuration are equivalent. No design changes are required.

Q: Why is the 4-644329-2 classified as Obsolete?

A: The 4-644329-2 has reached end-of-life status with TE Connectivity. The 4-644860-2 is the active equivalent part and should be used for all new designs and ongoing production requirements.

Q: Are there differences in RoHS compliance between these parts?

A: Both parts are RoHS compliant. The 4-644329-2 is designated ROHS3 Compliant, and the 4-644860-2 is RoHS Compliant. Both meet regulatory requirements for hazardous substance restrictions.

Q: What is the significance of the packaging difference?

A: The 4-644860-2 is supplied in Bulk packaging. Packaging format does not affect connector performance, electrical characteristics, or mechanical fit. Selection between packaging options depends on procurement and inventory management requirements.

Q: Are both parts suitable for IDC termination with 18 AWG cable?

A: Yes. Both the 4-644329-2 and 4-644860-2 are designed for IDC termination with 18 AWG discrete or ribbon cable. The IDC contact design and wire gauge specifications are identical.

Q: Can these connectors be used with ribbon cable?

A: Yes. Both connectors support discrete or ribbon cable termination via IDC technology. The closed-end design and locking ramp fastening accommodate standard ribbon cable configurations.

Q: What is the pitch specification, and why is it important?

A: Both connectors have a 0.156" (3.96mm) pitch, which defines the center-to-center spacing between contact positions. This specification ensures mechanical and electrical compatibility with mating connectors and PCB layouts designed for the MTA-156 series.

Q: Are the contact finish specifications identical?

A: Yes. Both parts feature tin contact finish with 80.0µin (2.03µm) thickness, providing equivalent electrical conductivity and corrosion resistance.