TE Connectivity 644460-3 MTA-156 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644460-3 is a 3-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 gold-plated contacts, a polarizing key, and a locking ramp fastening mechanism. The part is currently active in production with RoHS compliance and unlimited moisture sensitivity rating.

Substitute parts are identified when equivalent electrical and mechanical specifications are maintained across connector geometry, contact configuration, termination method, and compliance standards. Alternative part numbers may offer different packaging formats or inventory availability while preserving functional interchangeability.

Substiute Parts

644460-3

TE Connectivity AMP ConnectorsIn Stock: 785644460-3 Datasheet

Current PartRFQ

3-644460-3

TE Connectivity AMP ConnectorsIn Stock: 15113-644460-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 644460-3 is determined by strict equivalence across the following parameters:

Electrical Compatibility Criteria:

• Connector type: Rectangular receptacle configuration
• Contact type: Female socket contacts
• Number of positions: 3-position arrangement
• Pitch specification: 0.156" (3.96mm) contact spacing
• Cable termination method: IDC technology
• Wire gauge compatibility: 18 AWG

Mechanical Compatibility Criteria:

• Series designation: MTA-156
• Fastening mechanism: Locking ramp
• Mounting style: Free hanging in-line
• Contact finish: Gold plating
• Polarizing key feature: Present

Compliance and Status Criteria:

• Product status: Active
• RoHS compliance: Required
• REACH status: Unaffected
• Moisture sensitivity level: 1 (Unlimited)

Substitute parts maintain identical functional specifications while potentially differing in packaging format or inventory status.

Parameter Comparison

Engineering Selection Recommendations

The substitute part 3-644460-3 is functionally equivalent to the main part 644460-3 across all electrical and mechanical specifications. Both parts are manufactured by TE Connectivity, belong to the MTA-156 series, and maintain identical contact configurations, termination methods, and compliance certifications.

Compliance Status: Both parts satisfy RoHS requirements and REACH compliance standards. The substitute part carries ROHS3 certification, representing current regulatory compliance. Both parts are classified as EAR99 for export control purposes and carry identical HTSUS tariff codes.

Operational Equivalence: The parts are interchangeable in applications requiring 3-position IDC receptacle connectors with 18 AWG wire compatibility, gold-plated contacts, and locking ramp fastening. Contact finish thickness, polarizing key features, and moisture sensitivity ratings are identical.

Packaging Differentiation: The primary distinction between the parts is packaging format. The main part 644460-3 is supplied in standard packaging, while the substitute 3-644460-3 is supplied in bulk packaging. The substitute part offers higher inventory availability (1429 pieces versus 698 pieces).

Selection between these parts should be based on packaging requirements and inventory availability rather than functional performance.

Frequently Asked Questions (FAQ)

Q: Are the 644460-3 and 3-644460-3 connectors mechanically interchangeable?

A: Yes. Both connectors are 3-position MTA-156 rectangular receptacles with identical pitch (0.156"), contact type (female socket), and fastening mechanism (locking ramp). They accept the same mating plugs and terminate identical 18 AWG cable configurations.

Q: What is the difference between these two part numbers?

A: The primary difference is packaging format. The 644460-3 uses standard packaging, while the 3-644460-3 uses bulk packaging. Both parts are manufactured by TE Connectivity and contain identical connector specifications.

Q: Can I use the 3-644460-3 as a direct replacement for 644460-3 in production?

A: Yes, the 3-644460-3 is a direct functional substitute. The connector specifications, electrical performance, and mechanical compatibility are identical. Packaging format differences do not affect connector performance or compatibility.

Q: Are both parts RoHS compliant?

A: Yes. The 644460-3 is RoHS Compliant, and the 3-644460-3 is ROHS3 Compliant. Both meet current RoHS requirements. The ROHS3 designation on the substitute part indicates compliance with the most current RoHS standards.

Q: What wire gauges are compatible with these connectors?

A: Both connectors are specified for 18 AWG wire. They accept discrete or ribbon cable configurations with this gauge specification.

Q: Do these connectors support ribbon cable termination?

A: Yes. Both connectors feature IDC (Insulation Displacement Contact) termination technology, which supports both discrete and ribbon cable configurations at 18 AWG.

Q: What is the contact finish specification?

A: Both connectors feature gold-plated contacts with a finish thickness of 30.0µin (0.76µm), providing corrosion resistance and reliable electrical contact.

Q: Are these connectors polarized?

A: Yes. Both connectors include a polarizing key feature that prevents incorrect mating orientation.

Q: What is the moisture sensitivity level for these parts?

A: Both connectors carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.