TE Connectivity 640706-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 640706-1 is a rectangular connector socket contact designed for power applications. This component is a socket contact rated for 18-24 AWG wire gauges with tin-lead finish and crimp termination. The part is classified as obsolete, which necessitates identification of active equivalent alternatives to maintain supply chain continuity and ensure design compatibility in new procurement activities.

Substiute Parts

640706-1

TE Connectivity AMP ConnectorsIn Stock: 934640706-1 Datasheet

Current PartRFQ

3-640706-1

TE Connectivity AMP ConnectorsIn Stock: 257083-640706-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 640706-1 is based on strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Manufacturer: TE Connectivity AMP Connectors
• Series: SL-156
• Type: Power
• Pin or Socket: Socket
• Contact Termination: Crimp
• Wire Gauge: 18-24 AWG
• Contact Finish Thickness: 80.0µin (2.03µm)
• Moisture Sensitivity Level: 1 (Unlimited)
• ECCN: EAR99
• HTSUS Code: 8536.90.4000

The substitute part 3-640706-1 maintains full compatibility across all functional and mechanical parameters. The primary difference is the contact finish specification: the substitute uses pure tin finish instead of tin-lead finish, and the substitute part carries active product status with RoHS3 compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The substitute part 3-640706-1 is the direct equivalent for the obsolete 640706-1. Selection of the substitute is based on the following engineering criteria:

Product Status: The main part 640706-1 is classified as obsolete. The substitute 3-640706-1 carries active product status, ensuring ongoing availability and manufacturer support.

Regulatory Compliance: The substitute part 3-640706-1 is RoHS3 compliant, meeting current environmental and regulatory requirements for electronic components in most jurisdictions. The main part is RoHS non-compliant and does not meet modern regulatory standards.

Functional Equivalence: Both parts maintain identical electrical and mechanical specifications across wire gauge, contact termination method, finish thickness, and moisture sensitivity rating. The parts are mechanically and electrically interchangeable within the SL-156 series connector system.

Contact Finish Consideration: The substitute uses pure tin finish instead of tin-lead finish. This change reflects industry-wide transition to lead-free materials and does not affect electrical performance or mechanical compatibility at the specified contact finish thickness of 80.0µin (2.03µm).

Supply Chain: The substitute part maintains significantly higher inventory availability (25,691 pieces in stock versus 841 pieces for the obsolete part), supporting reliable procurement for production and maintenance applications.

Frequently Asked Questions (FAQ)

Q: Can 3-640706-1 be used as a direct replacement for 640706-1 in existing designs?

A: Yes. The parts are functionally and mechanically equivalent across all critical parameters including wire gauge, contact termination, finish thickness, and moisture sensitivity rating. Both parts are members of the SL-156 series and maintain identical socket contact specifications for 18-24 AWG power applications.

Q: What is the difference between the tin-lead finish of 640706-1 and the tin finish of 3-640706-1?

A: Both finishes are applied to the same thickness specification of 80.0µin (2.03µm). The tin finish of the substitute part reflects the industry transition to lead-free materials. At the specified thickness, both finishes provide equivalent electrical conductivity and corrosion resistance for power connector applications.

Q: Does the RoHS3 compliance of 3-640706-1 affect compatibility with 640706-1?

A: No. RoHS3 compliance is a regulatory and environmental certification that does not alter the electrical or mechanical performance of the contact. The substitute part maintains full compatibility with existing connector assemblies and mating components designed for the SL-156 series.

Q: Are there packaging differences between 640706-1 and 3-640706-1?

A: The main part 640706-1 packaging is not specified in the available data. The substitute part 3-640706-1 is supplied in bulk packaging. Confirm packaging requirements with your procurement specification before ordering.

Q: What is the REACH status difference between the two parts?

A: The main part 640706-1 is listed as REACH Affected. The substitute part 3-640706-1 shows REACH status as Vendor Undefined. Consult the component manufacturer or your supplier for current REACH compliance documentation specific to your application and jurisdiction.

Q: Can 3-640706-1 be used in new designs?

A: Yes. The substitute part carries active product status and meets current RoHS3 compliance requirements, making it suitable for new design implementations. The part maintains full electrical and mechanical compatibility with the SL-156 series connector system.