TE Connectivity 643995-3 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 643995-3 is a 3-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 supports both discrete and ribbon cable configurations.

The 643995-3 is classified as obsolete. Locating equivalent and substitute parts is necessary to support ongoing maintenance, repair, and production requirements for systems utilizing this connector type. Active production alternatives within the same electrical and mechanical specifications are available to ensure continued component availability.

Substiute Parts

643995-3

TE Connectivity AMP ConnectorsIn Stock: 986643995-3 Datasheet

Current PartRFQ

3-643995-3

TE Connectivity AMP ConnectorsIn Stock: 12383-643995-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 643995-3 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Connector type (Plug)
• Number of positions (3)
• Contact type (Male Pin)
• Pitch specification (0.156" / 3.96mm)
• Cable termination method (IDC)
• Wire gauge rating (22 AWG)
• Contact finish material and thickness (Gold, 15.0µin)

Mechanical Compatibility Parameters:

• Mounting configuration (Free Hanging, In-Line, Right Angle)
• Wire type support (Discrete or Ribbon Cable)
• Closed-end design

Series Designation:

• MTA-156 series classification

The substitute part 3-643995-3 maintains identical electrical and mechanical specifications across all parameters listed above. The primary distinction between the main part and its substitute is product status (obsolete versus active) and packaging configuration (standard versus bulk).

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution Criteria:

The part 3-643995-3 is a direct functional equivalent to 643995-3 for all electrical and mechanical applications. Both parts are manufactured by TE Connectivity and belong to the MTA-156 series with identical connector specifications, contact configurations, and termination methods.

Product Status Consideration:

The 643995-3 is classified as obsolete, while 3-643995-3 maintains active production status. For new designs, maintenance programs, or long-term supply chain planning, 3-643995-3 is the appropriate selection due to its active availability and ongoing manufacturer support.

Compliance Differences:

The substitute part 3-643995-3 is ROHS3 compliant and REACH unaffected, whereas the main part 643995-3 is RoHS non-compliant with undefined REACH status. Organizations operating under RoHS or REACH regulatory requirements must use 3-643995-3 to maintain compliance.

Packaging Consideration:

The main part 643995-3 is supplied in standard packaging, while 3-643995-3 is supplied in bulk packaging. Packaging selection depends on procurement volume and inventory management requirements.

Frequently Asked Questions (FAQ)

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

A: Yes. The 3-643995-3 is electrically and mechanically identical to 643995-3 across all functional parameters including connector type, position count, pitch, contact configuration, termination method, and wire gauge rating. Both parts are compatible with the same mating connectors and cable configurations.

Q: What is the primary reason to transition from 643995-3 to 3-643995-3?

A: The 643995-3 is obsolete and no longer in active production. The 3-643995-3 is the active equivalent part with identical specifications and ongoing manufacturer availability. Additionally, 3-643995-3 is ROHS3 compliant, addressing regulatory requirements that may apply to your application.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts share identical electrical specifications including contact finish (gold at 15.0µin thickness), wire gauge rating (22 AWG), and IDC termination capability. Electrical performance and signal integrity characteristics are equivalent.

Q: What is the difference in packaging between 643995-3 and 3-643995-3?

A: The 643995-3 is supplied in standard packaging, while 3-643995-3 is supplied in bulk packaging. The connector itself is identical; packaging differs only in quantity and presentation format for procurement purposes.

Q: Are both parts suitable for ribbon cable and discrete wire applications?

A: Yes. Both 643995-3 and 3-643995-3 support discrete wire and ribbon cable configurations through their IDC termination method and are rated for 22 AWG wire.

Q: Does the moisture sensitivity level differ between these parts?

A: No. Both parts have an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Which part should be specified for new designs?

A: Specify 3-643995-3 for new designs. This part is active in production, ROHS3 compliant, and represents the current equivalent within the MTA-156 series for 3-position IDC connectors with gold-plated male pins.