TE Connectivity 643995-2 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 643995-2 is a 2-position rectangular plug connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 22 AWG wire. This connector features gold-plated male pins, a closed-end design, and is rated for discrete or ribbon cable applications.

The 643995-2 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production and field service requirements for systems utilizing this connector type.

Substiute Parts

643995-2

TE Connectivity AMP ConnectorsIn Stock: 805643995-2 Datasheet

Current PartRFQ

3-643995-2

TE Connectivity AMP ConnectorsIn Stock: 10933-643995-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 643995-2 is determined by strict equivalence across the following critical parameters:

• Connector Type & Position Count: Both main and substitute parts must be 2-position plug connectors
• Pitch Specification: 0.156" (3.96mm) pitch is mandatory for mechanical and electrical compatibility
• Contact Configuration: Male pin contact type must be maintained
• Cable Termination Method: IDC termination is required for compatibility with existing cable assemblies
• Wire Gauge Rating: 22 AWG wire gauge specification must be preserved
• Contact Finish: Gold plating ensures electrical performance and corrosion resistance
• Series Compatibility: MTA-156 series designation confirms dimensional and functional alignment

The substitute part 3-643995-2 meets all these criteria and is therefore a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The 3-643995-2 is the direct substitute for the obsolete 643995-2. Both parts share identical electrical and mechanical specifications, ensuring full functional compatibility in existing applications.

Product Status Consideration: The 643995-2 is obsolete, while the 3-643995-2 maintains active product status. For new designs and ongoing production, the 3-643995-2 is the appropriate selection to ensure long-term supply availability and manufacturing support.

Regulatory Compliance: The 3-643995-2 is ROHS3 compliant and REACH unaffected, providing superior compliance posture compared to the non-compliant 643995-2. For applications subject to environmental regulations or customer compliance requirements, the 3-643995-2 is the preferred choice.

Packaging: The 3-643995-2 is supplied in bulk packaging, which may differ from the original part's packaging configuration. Verify packaging requirements for your procurement and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the 3-643995-2 be used as a direct replacement for the 643995-2 in existing assemblies?

A: Yes. The 3-643995-2 is electrically and mechanically equivalent to the 643995-2. Both connectors share identical pitch (0.156"), position count (2), contact type (male pin), wire gauge rating (22 AWG), and IDC termination method. Direct substitution is supported without design modification.

Q: What is the primary difference between these two parts?

A: The 643995-2 is obsolete, while the 3-643995-2 is an active product. Additionally, the 3-643995-2 is ROHS3 compliant and REACH unaffected, whereas the 643995-2 is non-compliant. The 3-643995-2 is supplied in bulk packaging.

Q: Are there any compatibility concerns with ribbon cable or discrete wire applications?

A: No. Both parts support discrete or ribbon cable termination via IDC method and are rated for 22 AWG wire. Compatibility with existing cable assemblies is maintained.

Q: Does the gold contact finish specification remain the same?

A: Yes. Both parts feature gold-plated contacts with identical finish thickness of 15.0µin (0.38µm), ensuring equivalent electrical performance and corrosion resistance.

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

A: Both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Should regulatory compliance influence the selection between these parts?

A: For applications subject to RoHS or REACH requirements, the 3-643995-2 is the appropriate selection due to its ROHS3 compliance and REACH unaffected status. The 643995-2 does not meet these regulatory standards.