TE Connectivity AMP Connectors 640639-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 640639-1 is a socket contact connector from the MTA-100 series, designed for 28 AWG insulation displacement connector (IDC) applications. This component features tin-lead contact finish and is classified as an active product. Identification of equivalent and substitute parts becomes necessary when managing inventory constraints, addressing component obsolescence concerns, or accommodating design flexibility within connector system specifications.

Substiute Parts

640639-1

TE Connectivity AMP ConnectorsIn Stock: 925640639-1 Datasheet

Current PartRFQ

3-640706-1

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

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution analysis for the 640639-1 is based on the following critical parameters: connector category (Rectangular Connectors), manufacturer (TE Connectivity AMP Connectors), socket configuration, contact finish material and thickness, and regulatory compliance status.

The identified substitute part 3-640706-1 operates within the same connector category and manufacturer ecosystem. However, substitution between these parts involves the following parameter variations:

Differing Parameters:

• Contact Termination: IDC (640639-1) versus Crimp (3-640706-1)
• Wire Gauge: 28 AWG (640639-1) versus 18-24 AWG (3-640706-1)
• Series: MTA-100 (640639-1) versus SL-156 (3-640706-1)
• Contact Finish: Tin-Lead (640639-1) versus Tin (3-640706-1)
• RoHS Status: RoHS non-compliant (640639-1) versus ROHS3 Compliant (3-640706-1)

Common Parameters:

• Socket configuration
• Contact finish thickness (80.0µin / 2.03µm)
• Moisture Sensitivity Level (MSL 1 - Unlimited)
• ECCN classification (EAR99)
• HTSUS code (8536.90.4000)

Parameter Comparison

Engineering Selection Recommendations

Both the 640639-1 and 3-640706-1 maintain active product status within the TE Connectivity AMP Connectors portfolio. The primary distinction between these components lies in their termination methodology and wire gauge specifications.

The 640639-1 employs insulation displacement contact (IDC) termination for 28 AWG wire applications, while the 3-640706-1 utilizes crimp termination for 18-24 AWG wire applications. These termination differences necessitate distinct assembly processes and are not interchangeable within the same connector interface.

Regulatory compliance presents a secondary consideration: the 640639-1 is RoHS non-compliant, whereas the 3-640706-1 achieves ROHS3 compliance. Selection between these parts must align with applicable regulatory requirements for the end application.

Both components share identical contact finish thickness specifications (80.0µin / 2.03µm), unlimited moisture sensitivity classification (MSL 1), and identical export control and tariff classifications.

Frequently Asked Questions (FAQ)

Q: Can the 3-640706-1 directly replace the 640639-1 in existing assemblies?

A: Direct replacement is not supported. The 640639-1 utilizes IDC termination for 28 AWG wire, while the 3-640706-1 employs crimp termination for 18-24 AWG wire. These termination methods are mechanically and functionally distinct and require different assembly equipment and wire preparation procedures.

Q: What is the primary functional difference between these socket contacts?

A: The 640639-1 is designed for insulation displacement termination, where wire is forced through a slot to create electrical contact without stripping insulation. The 3-640706-1 requires traditional crimp termination, where wire is mechanically compressed into a contact barrel. These represent different connector interface technologies.

Q: Are there RoHS compliance implications when selecting between these parts?

A: Yes. The 640639-1 is RoHS non-compliant, while the 3-640706-1 is ROHS3 compliant. Applications subject to RoHS regulations must utilize the 3-640706-1. Applications without RoHS requirements may use either component based on termination and wire gauge specifications.

Q: Do both parts share the same contact finish thickness?

A: Yes. Both the 640639-1 and 3-640706-1 feature identical contact finish thickness of 80.0µin (2.03µm), ensuring equivalent electrical contact resistance characteristics within their respective termination methodologies.

Q: What wire gauge compatibility exists between these parts?

A: The 640639-1 is specified for 28 AWG wire exclusively. The 3-640706-1 accommodates 18-24 AWG wire. These wire gauge ranges do not overlap and reflect the different termination technologies employed by each component.

Q: Are moisture sensitivity levels equivalent between these parts?

A: Yes. Both components are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage, handling, or assembly processes.