TE Connectivity 640600-2 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640600-2 is a 2-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 tin-lead contact finish, free-hanging in-line mounting, and locking ramp fastening. The part is currently active in production with 951 pieces in stock inventory.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across connector specifications. Alternative part numbers may be required due to packaging format changes, compliance updates, or inventory optimization while preserving functional compatibility.

Substiute Parts

640600-2

TE Connectivity AMP ConnectorsIn Stock: 975640600-2 Datasheet

Current PartRFQ

3-640600-2

TE Connectivity AMP ConnectorsIn Stock: 17533-640600-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 640600-2 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Connector type (Receptacle)
• Number of positions (2)
• Contact type (Female Socket)
• Pitch specification (0.156" / 3.96mm)
• Cable termination method (IDC)
• Wire gauge rating (20 AWG)
• Wire type compatibility (Discrete or Ribbon Cable)

Mechanical Compatibility Parameters:

• Number of rows (1)
• Mounting type (Free Hanging In-Line)
• Fastening type (Locking Ramp)
• Contact finish thickness (80.0µin / 2.03µm)
• Feed-through feature presence

Series Designation:

• MTA-156 series classification

The substitute part 3-640600-2 maintains full equivalence across all electrical and mechanical parameters. Differences are limited to contact finish material composition (tin versus tin-lead) and packaging format (bulk versus standard), neither of which affects functional compatibility or performance in the application circuit.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection Criteria:

The 640600-2 and 3-640600-2 are functionally equivalent rectangular receptacle connectors within the MTA-156 series. Selection between these parts is determined by regulatory compliance requirements and packaging specifications.

For RoHS3 Compliant Applications: Select part number 3-640600-2. This substitute maintains all electrical and mechanical specifications while meeting ROHS3 compliance requirements. The tin contact finish (versus tin-lead) is compliant with lead-free soldering standards and provides equivalent electrical performance at the specified contact finish thickness of 80.0µin (2.03µm).

For RoHS Non-Compliant or Legacy Applications: The 640600-2 remains the appropriate selection where tin-lead contact finish is specified or where RoHS exemptions apply.

Packaging Considerations: The 3-640600-2 is supplied in bulk packaging format with higher inventory availability (1739 pieces versus 951 pieces). The 640600-2 is supplied in standard packaging. Both formats contain identical connector specifications and are interchangeable at the component level.

Product Status: Both parts maintain active production status with TE Connectivity, ensuring long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Are the 640600-2 and 3-640600-2 mechanically interchangeable?

A: Yes. Both connectors share identical mechanical specifications including 2-position configuration, 0.156" pitch, free-hanging in-line mounting, and locking ramp fastening. They mount identically in applications designed for MTA-156 series receptacles.

Q: What is the functional difference between tin-lead and tin contact finishes?

A: Both contact finishes provide equivalent electrical conductivity and performance at the specified contact finish thickness of 80.0µin (2.03µm). The tin finish (3-640600-2) is lead-free and compliant with ROHS3 regulations. The tin-lead finish (640600-2) is non-compliant with RoHS requirements. Selection depends on regulatory requirements for the end application.

Q: Can I use the 3-640600-2 in place of the 640600-2 in existing designs?

A: Yes, provided the application does not require RoHS exemption or specifically mandate tin-lead contact finish. The 3-640600-2 maintains all electrical and mechanical compatibility while offering ROHS3 compliance.

Q: What is the significance of the packaging difference between these parts?

A: The 640600-2 is supplied in standard packaging, while the 3-640600-2 is supplied in bulk packaging. This difference affects order quantities and inventory management but does not alter connector specifications or performance. Both formats contain identical components.

Q: Are both parts suitable for IDC termination with 20 AWG cable?

A: Yes. Both the 640600-2 and 3-640600-2 are rated for IDC termination with 20 AWG discrete or ribbon cable. The IDC contact design and wire gauge rating are identical across both part numbers.

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

A: Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. These connectors can be stored and handled without moisture control measures.

Q: Which part should I specify for new designs?

A: For new designs, specify the 3-640600-2. This part offers ROHS3 compliance, higher inventory availability, and maintains full functional equivalence to the 640600-2. Selection of the 640600-2 is appropriate only when RoHS exemptions are required or when legacy design specifications mandate tin-lead contact finish.