TE Connectivity 640632-2 Socket Contact Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640632-2 is a socket contact designed for rectangular connector applications within the MTA-156 series. This component is a 20 AWG IDC (Insulation Displacement Contact) socket with tin-lead finish, engineered for use in modular connector assemblies. The part is currently classified as obsolete, necessitating identification of active equivalent components to maintain design continuity and ensure procurement availability for new production and field service applications.

Substiute Parts

640632-2

TE Connectivity AMP ConnectorsIn Stock: 1190640632-2 Datasheet

Current PartRFQ

640632-3

TE Connectivity AMP ConnectorsIn Stock: 1120640632-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 640632-2 is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Series: MTA-156
• Contact Type: Socket
• Contact Termination: IDC
• Wire Gauge: 20 AWG
• Base Product Number: 640632

The 640632-3 qualifies as a direct substitute based on identical alignment across all mandatory parameters. The primary distinction between these components is the contact finish specification: the 640632-2 uses tin-lead finish, while the 640632-3 uses tin finish with a specified thickness of 80.0µin (2.03µm). Both components maintain the same electrical and mechanical interface characteristics required for MTA-156 series connector assemblies.

Parameter Comparison

Engineering Selection Recommendations

The 640632-3 is the active equivalent for the obsolete 640632-2. Selection of the 640632-3 is supported by the following engineering considerations:

Product Status: The 640632-3 maintains active product status with TE Connectivity, ensuring ongoing availability and manufacturing support. The 640632-2 is obsolete and subject to discontinuation of supply.

Regulatory Compliance: The 640632-3 is ROHS3 compliant, meeting current environmental and regulatory requirements for electronic components in most jurisdictions. The 640632-2 is RoHS non-compliant and does not satisfy modern procurement standards for new designs or production.

Contact Finish Specification: The transition from tin-lead to tin finish in the 640632-3 aligns with industry-wide elimination of lead-based materials. The tin finish with specified thickness of 80.0µin (2.03µm) provides equivalent electrical conductivity and contact reliability for IDC termination applications.

Electrical and Mechanical Compatibility: Both components share identical wire gauge (20 AWG), contact termination method (IDC), series designation (MTA-156), and moisture sensitivity rating (MSL 1). These parameters ensure direct functional interchangeability within MTA-156 connector assemblies.

Frequently Asked Questions (FAQ)

Q: Can the 640632-3 be used as a direct replacement for the 640632-2 in existing designs?

A: Yes. The 640632-3 is electrically and mechanically compatible with the 640632-2. Both components are 20 AWG IDC socket contacts within the MTA-156 series. The contact finish difference (tin-lead versus tin) does not affect functional performance in IDC termination applications.

Q: What is the significance of the contact finish change from tin-lead to tin?

A: The contact finish change reflects industry transition away from lead-based materials. Tin finish with 80.0µin (2.03µm) thickness provides equivalent electrical conductivity and contact reliability. This change aligns with RoHS3 compliance requirements.

Q: Why is the 640632-2 classified as obsolete?

A: The 640632-2 is obsolete due to RoHS non-compliance and industry-wide transition to lead-free components. TE Connectivity has transitioned production to the 640632-3, which meets current regulatory standards.

Q: Are there packaging differences between the 640632-2 and 640632-3?

A: The 640632-3 is supplied in bulk packaging. Packaging specifications for the 640632-2 were not provided in the available documentation. Confirm packaging requirements with your procurement specification.

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

A: Both the 640632-2 and 640632-3 carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. These components do not require special moisture control during storage or handling.

Q: Are both parts subject to export control?

A: Both components are classified under ECCN EAR99, indicating they are subject to standard export control regulations. Verify compliance with applicable trade regulations for your jurisdiction and end-use application.