TE Connectivity 644662-8 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644662-8 is an 8-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 22 AWG wire. This connector features a gold-plated contact finish, closed-end design, and polarizing key for secure mating. The part is classified as obsolete, making identification of active equivalent components essential for ongoing procurement and system maintenance.

Substiute Parts

644662-8

TE Connectivity AMP ConnectorsIn Stock: 847644662-8 Datasheet

Current PartRFQ

3-644662-8

TE Connectivity AMP ConnectorsIn Stock: 11673-644662-8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 644662-8 is determined by strict equivalence across the following parameters:

• Connector Type & Series: Must be rectangular receptacle from MTA-156 series
• Position Count: Must be 8-position configuration
• Pitch Specification: Must maintain 0.156" (3.96mm) pitch
• Contact Configuration: Must be female socket contacts
• Termination Method: Must support IDC cable termination
• Wire Gauge Compatibility: Must accommodate 22 AWG wire
• Contact Finish: Must be gold-plated
• Mounting Configuration: Must be free hanging in-line mounting

The substitute part 3-644662-8 meets all these criteria while offering the advantage of active product status and RoHS compliance.

Parameter Comparison

Engineering Selection Recommendations

The part 3-644662-8 is the direct equivalent substitute for the obsolete 644662-8. Both components are manufactured by TE Connectivity and share identical electrical and mechanical specifications across all critical parameters.

Key Advantages of 3-644662-8:

• Active Product Status: Currently in production and available for procurement
• RoHS Compliance: Meets RoHS regulatory requirements, whereas the original part is non-compliant
• Inventory Availability: 1128 pieces in stock compared to 809 pieces of the obsolete variant
• Regulatory Alignment: Suitable for applications requiring RoHS-compliant components

Functional Equivalence:

The substitute part maintains complete compatibility with existing designs. All electrical characteristics, mechanical dimensions, contact specifications, and termination methods are identical. The connector will interface with corresponding plug connectors and cable assemblies designed for the MTA-156 series 8-position configuration.

Frequently Asked Questions (FAQ)

Q: Is the 3-644662-8 a direct replacement for the 644662-8?

A: Yes. The 3-644662-8 is a direct equivalent substitute. Both parts share identical specifications for connector type, position count, pitch, contact configuration, termination method, wire gauge, and contact finish. The substitute is the active production variant of the same connector design.

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

A: The primary differences are product status and regulatory compliance. The 644662-8 is obsolete and RoHS non-compliant, while the 3-644662-8 is an active product that meets RoHS requirements. All functional and mechanical specifications are identical.

Q: Can I use the 3-644662-8 in place of the 644662-8 in existing applications?

A: Yes. The 3-644662-8 is fully compatible with all applications designed for the 644662-8. The connector maintains the same mating interface, IDC termination compatibility, and electrical performance.

Q: Are there any packaging differences between these parts?

A: The 644662-8 packaging is not specified in the documentation. The 3-644662-8 is supplied in bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: What is the significance of the RoHS compliance difference?

A: RoHS compliance indicates the 3-644662-8 meets restrictions on hazardous substances in electrical and electronic equipment. For applications subject to RoHS regulations or customer requirements, the 3-644662-8 is the appropriate selection.

Q: Are both parts from the same manufacturer?

A: Yes. Both the 644662-8 and 3-644662-8 are manufactured by TE Connectivity AMP Connectors and belong to the MTA-156 series.

Q: What wire gauges are compatible with these connectors?

A: Both connectors are specified for 22 AWG wire with IDC termination. The connectors support discrete or ribbon cable configurations.

Q: Is the contact finish specification the same for both parts?

A: Yes. Both parts feature gold-plated contacts with a finish thickness of 30.0µin (0.76µm), ensuring equivalent electrical performance and corrosion resistance.