TE Connectivity 644662-9 MTA-156 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644662-9 is a 9-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 gold-plated contacts, a polarizing key, and a locking ramp fastening mechanism for secure in-line mounting applications.

The 644662-9 is classified as obsolete. Locating equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or field replacement requirements for systems utilizing this connector configuration.

Substiute Parts

644662-9

TE Connectivity AMP ConnectorsIn Stock: 1173644662-9 Datasheet

Current PartRFQ

3-644662-9

TE Connectivity AMP ConnectorsIn Stock: 8853-644662-9 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 644662-9 is determined by strict equivalence across the following critical parameters:

• Connector Type & Position Count: Receptacle configuration with exactly 9 positions
• Pitch & Row Configuration: 0.156" (3.96mm) pitch in single-row arrangement
• Contact Specifications: Female socket contacts with gold finish at 30.0µin thickness
• Cable Termination Method: IDC termination compatible with 22 AWG discrete or ribbon cable
• Mechanical Interface: Free hanging in-line mounting with locking ramp fastening and polarizing key
• Series Designation: MTA-156 series compatibility

The substitute part 3-644662-9 meets all these parameters identically, establishing it as a direct functional equivalent. The primary distinction between the main part and substitute is product status (obsolete versus active) and packaging configuration (standard versus bulk).

Parameter Comparison

Engineering Selection Recommendations

The 3-644662-9 is the direct substitute for the obsolete 644662-9. Both connectors are manufactured by TE Connectivity and share identical electrical and mechanical specifications across all critical parameters.

Product Status Consideration: The 644662-9 is obsolete, while the 3-644662-9 maintains active product status. Selection of the active substitute ensures continued availability, manufacturer support, and compliance with current supply chain requirements.

Regulatory Compliance: Both parts maintain REACH Unaffected status and satisfy RoHS requirements. The 3-644662-9 carries current RoHS Compliance designation, while the 644662-9 is ROHS3 Compliant. Both are suitable for applications requiring environmental and regulatory adherence.

Moisture Sensitivity: Both parts are classified at MSL 1 (Unlimited), indicating no moisture sensitivity constraints during storage, handling, or assembly.

Packaging: The 644662-9 is supplied in standard packaging, while the 3-644662-9 is available in bulk packaging. Packaging selection should align with procurement volume and inventory management requirements.

Frequently Asked Questions (FAQ)

Q: Are the 644662-9 and 3-644662-9 mechanically interchangeable?

A: Yes. Both connectors are 9-position MTA-156 series receptacles with identical pitch (0.156"), mounting type (free hanging in-line), fastening mechanism (locking ramp), and polarizing key configuration. They are mechanically interchangeable in all applications.

Q: Are the electrical specifications identical between these parts?

A: Yes. Both connectors feature female socket contacts with gold plating at 30.0µin thickness, IDC termination for 22 AWG discrete or ribbon cable, and closed-end design with polarizing key. Electrical performance and contact characteristics are identical.

Q: Why is the 644662-9 listed as obsolete?

A: The 644662-9 has been discontinued by TE Connectivity. The 3-644662-9 is the active equivalent and should be used for new designs and ongoing production requirements.

Q: What is the difference between standard and bulk packaging?

A: The 644662-9 is supplied in standard packaging, while the 3-644662-9 is available in bulk packaging. Bulk packaging is typically used for high-volume orders and may offer cost advantages. Packaging selection depends on order quantity and inventory management practices.

Q: Are both parts RoHS compliant?

A: Yes. The 644662-9 is ROHS3 Compliant, and the 3-644662-9 is RoHS Compliant. Both satisfy RoHS requirements for restricted substance elimination.

Q: Can these connectors be used with both discrete and ribbon cable?

A: Yes. Both connectors support IDC termination with discrete or ribbon cable at 22 AWG wire gauge, providing flexibility in cable assembly configurations.

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

A: Both connectors are classified at MSL 1 (Unlimited), indicating no moisture sensitivity constraints. They can be stored and handled without special moisture control measures.