TE Connectivity 644462-7 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644462-7 is a 7-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 and tin-lead contact finish. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability for new production and repair applications.

Substiute Parts

644462-7

TE Connectivity AMP ConnectorsIn Stock: 987644462-7 Datasheet

Current PartRFQ

3-644462-7

TE Connectivity AMP ConnectorsIn Stock: 10303-644462-7 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 644462-7 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Series designation (MTA-156)
• Connector type and contact configuration (7-position receptacle, female socket)
• Pitch specification (0.156" / 3.96mm)
• Cable termination method (IDC)
• Wire gauge compatibility (20 AWG)
• Mounting configuration (free hanging, in-line)
• Functional features (closed end, polarizing key)
• Row configuration (single row)

The substitute part 3-644462-7 maintains identical electrical and mechanical specifications across all these parameters. The primary distinction between the main part and its substitute is the contact finish composition and product status classification. The main part features tin-lead contact finish and is obsolete; the substitute features tin contact finish and maintains active product status.

Parameter Comparison

Engineering Selection Recommendations

The 3-644462-7 serves as the direct functional equivalent to the obsolete 644462-7. Both parts maintain identical mechanical and electrical specifications within the MTA-156 series, ensuring pin-for-pin compatibility and interchangeability in applications requiring 7-position IDC receptacle connectors with 20 AWG wire termination.

Product Status Consideration: The 644462-7 is classified as obsolete, while the 3-644462-7 maintains active product status. For new designs, production builds, and long-term supply chain planning, the 3-644462-7 is the appropriate selection.

Compliance Consideration: The 3-644462-7 is RoHS compliant, whereas the 644462-7 is RoHS non-compliant. Applications subject to RoHS directives or requiring compliance with environmental regulations must utilize the 3-644462-7. The contact finish difference (tin versus tin-lead) reflects this compliance distinction.

Contact Finish Distinction: The 644462-7 features tin-lead contact finish; the 3-644462-7 features tin contact finish. Both maintain identical contact finish thickness (80.0µin / 2.03µm). The tin finish in the substitute part aligns with modern manufacturing standards and RoHS requirements.

Frequently Asked Questions (FAQ)

Q: Are the 644462-7 and 3-644462-7 mechanically interchangeable?

A: Yes. Both connectors share identical mechanical specifications: 7-position configuration, 0.156" pitch, single-row layout, free-hanging in-line mounting, and closed-end design with polarizing key. Physical dimensions and mating interfaces are equivalent.

Q: Are the 644462-7 and 3-644462-7 electrically interchangeable?

A: Yes. Both connectors support identical electrical specifications: IDC termination for 20 AWG discrete or ribbon cable, female socket contact type, and equivalent contact finish thickness. Electrical performance characteristics are equivalent.

Q: What is the significance of the contact finish difference?

A: The 644462-7 uses tin-lead contact finish; the 3-644462-7 uses tin contact finish. Both maintain the same thickness (80.0µin / 2.03µm). The tin finish in the substitute part reflects compliance with RoHS regulations and modern manufacturing standards. Functionally, both finishes provide equivalent contact reliability and conductivity for this connector class.

Q: Why is the 644462-7 classified as obsolete?

A: The 644462-7 is obsolete due to its RoHS non-compliant tin-lead contact finish. TE Connectivity has transitioned to the RoHS-compliant 3-644462-7 variant as the active product offering within the MTA-156 series.

Q: Can I use the 3-644462-7 in existing designs that originally specified the 644462-7?

A: Yes. The 3-644462-7 is a direct substitute with identical mechanical and electrical specifications. No design modifications are required. The RoHS compliance of the substitute part may provide additional regulatory benefits for legacy system updates or repairs.

Q: What is the packaging difference between these parts?

A: The 644462-7 packaging is not specified in available documentation. The 3-644462-7 is supplied in bulk packaging. Confirm packaging requirements with your procurement or supply chain team for specific order quantities.

Q: Are there any environmental or regulatory advantages to using the 3-644462-7?

A: Yes. The 3-644462-7 is RoHS compliant, whereas the 644462-7 is RoHS non-compliant. Applications subject to RoHS directives, WEEE regulations, or other environmental compliance requirements must use the 3-644462-7. Both parts share identical ECCN (EAR99) and HTSUS (8536.69.8000) classifications.

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

A: Both the 644462-7 and 3-644462-7 carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. These connectors do not require special moisture control during storage, handling, or assembly.