TE Connectivity 644463-8 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644463-8 is an 8-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 22 AWG discrete or ribbon cable. This connector features a closed end design with polarizing key and tin-lead contact finish.

The 644463-8 is classified as obsolete. Locating equivalent and substitute parts is necessary to support ongoing maintenance, repair, and production requirements for legacy systems utilizing this connector type.

Substiute Parts

644463-8

TE Connectivity AMP ConnectorsIn Stock: 1100644463-8 Datasheet

Current PartRFQ

3-644463-8

TE Connectivity AMP ConnectorsIn Stock: 15673-644463-8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 644463-8 is determined by strict equivalence across the following critical parameters:

• Connector Type & Position Count: Receptacle configuration with 8 positions
• Pitch & Row Configuration: 0.156" (3.96mm) pitch, single row layout
• Contact Type & Termination: Female socket contacts with IDC termination capability
• Wire Compatibility: 22 AWG wire gauge for discrete or ribbon cable
• Mechanical Features: Closed end design with polarizing key for proper orientation
• Series Designation: MTA-156 series compatibility

The substitute part 3-644463-8 maintains identical electrical and mechanical specifications across all these parameters, ensuring direct functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The 3-644463-8 serves as the direct substitute for the obsolete 644463-8. Both parts maintain identical electrical and mechanical specifications across all critical parameters including connector type, position count, pitch, contact configuration, termination method, and wire gauge compatibility.

The primary distinction between these parts is product status and regulatory compliance. The 644463-8 is obsolete and RoHS non-compliant, while the 3-644463-8 is an active product with RoHS compliance. For new designs and ongoing production support, the 3-644463-8 is the appropriate selection.

Both parts are manufactured by TE Connectivity AMP Connectors and belong to the MTA-156 series. The contact finish differs only in designation (tin-lead versus tin), with identical thickness specifications of 80.0µin (2.03µm).

Frequently Asked Questions (FAQ)

Q: Can the 3-644463-8 directly replace the 644463-8 in existing assemblies?

A: Yes. The 3-644463-8 maintains identical electrical and mechanical specifications across all critical parameters including connector type, position count, pitch, contact type, termination method, and wire gauge. Direct substitution is supported.

Q: What is the difference between the tin-lead finish on the 644463-8 and the tin finish on the 3-644463-8?

A: Both finishes maintain the same thickness specification of 80.0µin (2.03µm). The contact finish designation differs, but the electrical and mechanical performance characteristics remain equivalent for IDC termination applications.

Q: Why is the 644463-8 listed as obsolete?

A: The 644463-8 has been superseded by the 3-644463-8, which is an active product offering improved regulatory compliance including RoHS certification.

Q: Are there packaging differences between these parts?

A: The 644463-8 packaging is not specified in the available data. The 3-644463-8 is supplied in bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: Is the 3-644463-8 compatible with both discrete and ribbon cable?

A: Yes. The 3-644463-8 supports both discrete and ribbon cable configurations with 22 AWG wire gauge, identical to the 644463-8 specification.

Q: What is the polarizing key feature?

A: The polarizing key is a mechanical feature that ensures correct orientation during connector mating, preventing reversed or incorrect insertion of the mating plug connector.

Q: Are both parts suitable for applications requiring RoHS compliance?

A: The 3-644463-8 is RoHS compliant and suitable for applications with RoHS requirements. The 644463-8 is RoHS non-compliant and not suitable for such applications.