TE Connectivity 640428-2 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640428-2 is a 2-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 tin-lead contact finish and is classified as obsolete product status.

Due to its obsolete classification, locating equivalent substitute parts is necessary for ongoing system maintenance, repair, and new design implementations. The substitute part identified maintains functional compatibility while offering improved product status and compliance characteristics.

Substiute Parts

640428-2

TE Connectivity AMP ConnectorsIn Stock: 1174640428-2 Datasheet

Current PartRFQ

3-640428-2

TE Connectivity AMP ConnectorsIn Stock: 241473-640428-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 640428-2 is based on strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Connector type: Rectangular receptacle
• Number of positions: 2
• Pitch: 0.156" (3.96mm)
• Contact type: Female socket
• Cable termination: IDC
• Wire gauge: 22 AWG
• Wire type: Discrete or ribbon cable

Mechanical Compatibility Parameters:

• Mounting type: Free Hanging (In-Line)
• Fastening type: Locking ramp
• Features: Closed end
• Series: MTA-156

Acceptable Variations:

• Contact finish composition (tin-lead to tin)
• Contact finish thickness (maintained at 80.0µin / 2.03µm)
• Product status (obsolete to active)
• RoHS compliance status
• Packaging configuration

The substitute part 3-640428-2 maintains all critical electrical and mechanical parameters while offering improved availability and compliance status.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 3-640428-2 serves as the direct substitute for the obsolete 640428-2 connector. Selection of the substitute part is supported by the following factors:

Product Status: The substitute part maintains active product status, ensuring continued availability and manufacturer support compared to the obsolete main part.

Compliance Characteristics: The 3-640428-2 achieves RoHS compliance, whereas the 640428-2 is RoHS non-compliant. This distinction is significant for applications subject to RoHS regulatory requirements.

Functional Equivalence: All critical electrical and mechanical parameters remain identical between the main part and substitute, including connector geometry, contact configuration, termination method, and wire gauge specifications.

Contact Finish Variation: The substitute employs tin contact finish in place of the tin-lead finish of the main part. Both finishes maintain the same thickness specification of 80.0µin (2.03µm), ensuring equivalent contact performance and reliability characteristics.

Regulatory 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 3-640428-2 be used as a direct replacement for the 640428-2 in existing applications?

A: Yes. The 3-640428-2 maintains identical electrical and mechanical specifications across all critical parameters including connector type, position count, pitch, contact configuration, termination method, and wire gauge. The parts are mechanically and electrically interchangeable.

Q: What is the difference between the tin-lead finish on the 640428-2 and the tin finish on the 3-640428-2?

A: The main part features tin-lead contact finish while the substitute features tin contact finish. Both maintain identical thickness specifications of 80.0µin (2.03µm). The contact finish thickness determines electrical performance and reliability characteristics, which remain equivalent between the two parts.

Q: Does the RoHS compliance difference affect compatibility?

A: RoHS compliance status does not affect electrical or mechanical compatibility. The difference reflects regulatory compliance classification. The 3-640428-2 RoHS-compliant status may be required for applications subject to RoHS regulations, while the 640428-2 non-compliant status may be restricted in such applications.

Q: Are there packaging differences between these parts?

A: The 640428-2 packaging is unspecified in available documentation. The 3-640428-2 is supplied in bulk packaging. Packaging configuration does not affect connector functionality or compatibility.

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

A: Yes. Both the 640428-2 and 3-640428-2 support discrete or ribbon cable termination via IDC method at 22 AWG wire gauge.

Q: What is the pitch specification and why is it important?

A: The pitch specification is 0.156" (3.96mm), representing the center-to-center distance between connector positions. This specification determines mechanical compatibility with mating connectors and PCB layouts. Both parts maintain identical pitch specifications.

Q: Are these connectors suitable for high-frequency applications?

A: Frequency capability specifications are not provided in the available technical parameters. Selection for high-frequency applications requires consultation of detailed electrical specifications beyond the scope of this equivalence reference.