TE Connectivity 2-643817-2 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 2-643817-2 is a 22-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 18 AWG discrete or ribbon cable. This connector features a tin-lead contact finish, closed-end design, and polarizing key for secure mating alignment.

The 2-643817-2 is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing maintenance, repair, and production requirements for legacy systems utilizing this connector configuration.

Substiute Parts

2-643817-2

TE Connectivity AMP ConnectorsIn Stock: 10982-643817-2 Datasheet

Current PartRFQ

5-643817-2

TE Connectivity AMP ConnectorsIn Stock: 11305-643817-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 2-643817-2 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector type: Receptacle
• Number of positions: 22
• Pitch: 0.156" (3.96mm)
• Number of rows: 1
• Contact type: Female Socket
• Cable termination method: IDC
• Wire gauge: 18 AWG
• Mounting type: Free Hanging (In-Line)
• Fastening type: Locking Ramp
• Features: Closed End, Polarizing Key
• Series: MTA-156

Allowable Variation Parameters:

• Contact finish material (tin-lead to tin)
• Contact finish thickness (within specified tolerance)
• Product status (obsolete to active)
• RoHS compliance status
• Packaging configuration

The substitute part 5-643817-2 maintains full electrical and mechanical compatibility with the 2-643817-2 across all critical parameters while offering improved compliance and active product status.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: TE Connectivity 5-643817-2

The 5-643817-2 is the direct functional equivalent of the 2-643817-2 and is the recommended substitute for all applications. This substitution is supported by:

Electrical Compatibility: The 5-643817-2 maintains identical electrical specifications across all critical parameters including connector type, position count, pitch, contact type, termination method, and wire gauge. The contact finish variation from tin-lead to tin does not affect electrical performance within the specified contact finish thickness of 80.0µin (2.03µm).

Mechanical Compatibility: Mechanical dimensions, mounting configuration, fastening mechanism, and polarizing key design are identical between the two parts, ensuring direct physical interchangeability in existing connector housings and cable assemblies.

Product Status: The 5-643817-2 is classified as active product status, ensuring ongoing availability and manufacturer support. The 2-643817-2 is obsolete, making the 5-643817-2 the appropriate long-term solution for new production and legacy system support.

Regulatory Compliance: The 5-643817-2 is RoHS compliant, meeting current environmental and regulatory requirements. The 2-643817-2 is RoHS non-compliant. For applications subject to RoHS requirements, the 5-643817-2 is the mandated selection.

Export Classification: Both parts share identical ECCN (EAR99) and HTSUS (8536.69.8000) classifications, indicating no change in export control or tariff treatment.

Frequently Asked Questions (FAQ)

Q: Can the 5-643817-2 be used as a direct replacement for the 2-643817-2 in existing assemblies?

A: Yes. The 5-643817-2 is mechanically and electrically identical to the 2-643817-2 across all critical parameters. Both connectors feature 22 positions, 0.156" pitch, IDC termination for 18 AWG cable, locking ramp fastening, and polarizing key design. Direct substitution is supported without modification to mating connectors, cable assemblies, or mounting hardware.

Q: What is the difference between the tin-lead finish on the 2-643817-2 and the tin finish on the 5-643817-2?

A: Both finishes are applied to the same thickness specification of 80.0µin (2.03µm). The contact finish material does not affect electrical performance or mechanical compatibility. The tin finish on the 5-643817-2 reflects current manufacturing standards and RoHS compliance requirements.

Q: Why is the 2-643817-2 marked as obsolete?

A: The 2-643817-2 has been superseded by the 5-643817-2 in the manufacturer's product line. The 5-643817-2 offers identical functionality with active product status and RoHS compliance. Obsolete designation indicates the part is no longer in active production, though existing inventory may remain available.

Q: Are there any packaging differences between the 2-643817-2 and 5-643817-2?

A: The 2-643817-2 packaging specification is not provided in the technical data. The 5-643817-2 is supplied in bulk packaging. Packaging configuration does not affect connector performance or interchangeability.

Q: Is the 5-643817-2 suitable for applications requiring RoHS compliance?

A: Yes. The 5-643817-2 is RoHS compliant. The 2-643817-2 is RoHS non-compliant. For any application subject to RoHS requirements, the 5-643817-2 is the appropriate selection.

Q: Will the 5-643817-2 work with existing MTA-156 series plug connectors designed for the 2-643817-2?

A: Yes. Both the 2-643817-2 and 5-643817-2 are part of the MTA-156 series with identical pitch (0.156"), position count (22), and mechanical design. Mating compatibility with MTA-156 plug connectors is maintained.

Q: Are there any environmental or storage condition differences between these two parts?

A: Both parts share identical Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating no special moisture control requirements during storage or handling.