TE Connectivity 644462-4 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644462-4 is a 4-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 20 AWG discrete or ribbon cable. This connector features a closed end design with polarizing key, tin-lead contact finish, and yellow housing. The part is currently active in production with 704 units in stock.

Substitute parts are identified when equivalent electrical and mechanical specifications are maintained across connector position count, pitch, mounting configuration, cable termination method, and wire gauge compatibility. Alternative part numbers may offer different packaging formats, contact finish materials, or compliance certifications while preserving functional interchangeability.

Substiute Parts

644462-4

TE Connectivity AMP ConnectorsIn Stock: 769644462-4 Datasheet

Current PartRFQ

3-644462-4

TE Connectivity AMP ConnectorsIn Stock: 10743-644462-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 644462-4 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector type (Receptacle)
• Number of positions (4)
• Pitch specification (0.156" / 3.96mm)
• Cable termination method (IDC)
• Wire gauge rating (20 AWG)
• Mounting configuration (Free Hanging In-Line)
• Series designation (MTA-156)
• Contact finish thickness (80.0µin / 2.03µm)

Variable Parameters Permitting Substitution:

• Contact finish material (Tin-Lead vs. Tin)
• Packaging format (standard vs. bulk)
• RoHS compliance status
• Inventory availability

The substitute part 3-644462-4 maintains all mandatory parameters while differing in contact finish composition (Tin instead of Tin-Lead) and RoHS compliance certification. Both parts share identical mechanical dimensions, electrical ratings, and functional performance characteristics within the MTA-156 connector family.

Parameter Comparison

Engineering Selection Recommendations

Part 644462-4 Selection Criteria:

• Applications requiring tin-lead contact finish specification
• Systems with RoHS non-compliant material requirements
• Designs where legacy tin-lead specifications are mandated
• Standard packaging requirements

Part 3-644462-4 Selection Criteria:

• Applications subject to ROHS3 compliance requirements
• Environmental or regulatory frameworks requiring lead-free contact materials
• Higher inventory availability for volume production
• Bulk packaging format for manufacturing operations

Both parts maintain identical electrical performance, mechanical dimensions, and functional compatibility within the MTA-156 series. Selection between these alternatives is determined by compliance certification requirements and packaging format needs rather than electrical or mechanical performance differences.

Frequently Asked Questions (FAQ)

Q: Can 644462-4 and 3-644462-4 be used interchangeably in the same circuit?

A: Yes. Both connectors maintain identical electrical specifications, mechanical dimensions, pitch, contact count, and termination method. The primary differences are contact finish material (tin-lead vs. tin) and RoHS compliance status. Functional interchangeability is preserved across both parts.

Q: What is the significance of the contact finish difference between tin-lead and tin?

A: The contact finish material affects compliance certifications and environmental regulations. Tin-lead (644462-4) is RoHS non-compliant, while tin (3-644462-4) is ROHS3 compliant. Both finishes maintain the same thickness specification (80.0µin / 2.03µm) and provide equivalent electrical performance for this connector application.

Q: Are the mechanical dimensions identical between these two parts?

A: Yes. Both parts share identical pitch (0.156" / 3.96mm), position count (4), mounting configuration (Free Hanging In-Line), and housing design. They are mechanically interchangeable.

Q: What does IDC termination mean for these connectors?

A: IDC (Insulation Displacement Contact) termination allows direct connection of 20 AWG discrete or ribbon cable without stripping insulation. The connector contacts pierce the cable insulation during termination, establishing electrical connection.

Q: Does packaging format affect connector performance?

A: No. Standard and bulk packaging formats contain identical connectors. Packaging differences relate only to quantity per unit and handling for manufacturing operations. Electrical and mechanical performance remains unchanged.

Q: What is the Moisture Sensitivity Level (MSL) rating?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. These connectors can be stored and handled without special humidity control measures.

Q: Are these connectors suitable for ribbon cable applications?

A: Yes. Both connectors support discrete or ribbon cable termination via IDC method at 20 AWG wire gauge. The closed-end design with polarizing key ensures proper cable orientation during termination.