TE Connectivity AMP Connectors 641645-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 641645-2 is a socket contact connector designed for 26 AWG insulation displacement connector (IDC) applications. This component features tin contact finish and belongs to the MTA-100 series of rectangular connectors. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain supply chain continuity and support ongoing production requirements.

Substiute Parts

641645-2

TE Connectivity AMP ConnectorsIn Stock: 808641645-2 Datasheet

Current PartRFQ

640638-3

TE Connectivity AMP ConnectorsIn Stock: 14592640638-3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 641645-2 is based on strict equivalence across all critical electrical and mechanical parameters. The substitute part 640638-3 maintains identical specifications in the following key areas:

• Wire Gauge: Both parts accommodate 26 AWG conductors
• Contact Type: Both are socket contacts
• Contact Termination Method: Both utilize IDC technology
• Contact Finish Material: Both feature tin plating
• Contact Finish Thickness: Both specify 80.0µin (2.03µm)
• Series Classification: Both belong to the MTA-100 series
• Regulatory Compliance: Both meet RoHS requirements and carry identical ECCN and HTSUS classifications
• Moisture Sensitivity: Both are rated MSL 1 (Unlimited)

The primary distinction between these parts is product status: 641645-2 is obsolete while 640638-3 is active, with significantly higher inventory availability.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 640638-3 socket contact serves as the direct functional equivalent to the obsolete 641645-2. Both components are manufactured by TE Connectivity AMP Connectors and share identical electrical and mechanical specifications within the MTA-100 series.

Selection of 640638-3 is supported by the following factors:

• Regulatory Compliance: Both parts maintain RoHS compliance and carry identical ECCN and HTSUS classifications, ensuring no regulatory barriers to substitution
• Product Status: 640638-3 is classified as active, providing assured long-term availability and supply chain stability
• Inventory Position: 640638-3 maintains substantially higher inventory levels (14,567 units versus 741 units), reducing procurement lead times
• Electrical Equivalence: All critical parameters including wire gauge, contact termination method, contact finish, and finish thickness are identical
• Environmental Rating: Both parts carry MSL 1 (Unlimited) moisture sensitivity classification

Frequently Asked Questions (FAQ)

Q: Are the 641645-2 and 640638-3 electrically interchangeable?

A: Yes. Both components are socket contacts rated for 26 AWG IDC applications with identical tin contact finish specifications (80.0µin thickness). They are members of the same MTA-100 series and share all critical electrical parameters.

Q: What is the primary reason for substituting 641645-2 with 640638-3?

A: The 641645-2 is classified as obsolete, while 640638-3 is an active product. This substitution ensures continued component availability and supply chain reliability for new production and maintenance applications.

Q: Are there packaging differences between these parts?

A: The 641645-2 packaging specification is not provided in the technical data. The 640638-3 is supplied in bulk packaging. Packaging configuration should be verified against specific assembly requirements.

Q: Do both parts meet the same regulatory standards?

A: Both components are RoHS compliant and carry identical ECCN (EAR99) and HTSUS (8536.90.4000) classifications. Both are rated MSL 1 (Unlimited) for moisture sensitivity.

Q: Can 640638-3 be used in existing designs specified for 641645-2?

A: Yes. The 640638-3 maintains complete parameter equivalence across wire gauge, contact type, termination method, contact finish, and finish thickness. No design modifications are required.

Q: What is the inventory status difference between these parts?

A: The 641645-2 has 741 units in stock, while 640638-3 has 14,567 units available. The significantly higher inventory of 640638-3 supports improved procurement timelines and supply security.