TE Connectivity 1-640443-2 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-640443-2 is a 12-position rectangular receptacle connector from the MTA-100 series, designed for IDC (Insulation Displacement Contact) termination with 28 AWG discrete or ribbon cable. This connector features tin-lead contact finish and is classified as a closed-end receptacle with free-hanging or right-angle mounting capability using a locking ramp fastening mechanism.

The part is currently active in production with 972 units in stock. Substitute parts are identified to address specific application requirements, including RoHS compliance status and packaging variations, while maintaining electrical and mechanical compatibility.

Substiute Parts

1-640443-2

TE Connectivity AMP ConnectorsIn Stock: 10271-640443-2 Datasheet

Current PartRFQ

4-640443-2

TE Connectivity AMP ConnectorsIn Stock: 10814-640443-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between the main part (1-640443-2) and the identified equivalent (4-640443-2) is based on strict electrical and mechanical compatibility criteria. Both parts share identical specifications across all critical parameters that determine functional interchangeability:

Key Parameters for Substitution Compatibility:

• Connector type, position count, and pitch (0.100")
• Contact type and termination method (IDC, 28 AWG)
• Mounting configuration and fastening mechanism
• Contact finish thickness (80.0µin)
• Moisture sensitivity level and environmental rating

The primary distinction between these parts is the contact finish material (tin-lead versus tin) and RoHS compliance status. The substitute part 4-640443-2 features tin contact finish and is RoHS compliant, whereas the main part uses tin-lead finish and is RoHS non-compliant. Both parts are manufactured by TE Connectivity within the MTA-100 series and maintain identical mechanical and electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

For RoHS-Compliant Applications: Select part 4-640443-2. This substitute maintains full electrical and mechanical compatibility with the main part while meeting RoHS compliance requirements. The tin contact finish (versus tin-lead) satisfies regulatory mandates for applications subject to RoHS directives.

For Legacy or Non-Regulated Applications: Either part 1-640443-2 or 4-640443-2 is suitable. Selection may be based on inventory availability, packaging requirements, or existing design specifications. Both parts are active products with adequate stock levels.

Compliance Considerations: The main part (1-640443-2) is RoHS non-compliant due to its tin-lead contact finish. Applications requiring RoHS compliance must use the substitute part (4-640443-2). Both parts carry identical ECCN (EAR99) and REACH status classifications.

Packaging and Procurement: The substitute part 4-640443-2 is supplied in bulk packaging, whereas the main part packaging is not specified. Procurement decisions should account for packaging format requirements and inventory management practices.

Frequently Asked Questions (FAQ)

Q: Are parts 1-640443-2 and 4-640443-2 electrically interchangeable?

A: Yes. Both parts are 12-position rectangular receptacle connectors with identical electrical specifications, including contact type, pitch, wire gauge, and termination method. They function identically in circuit applications.

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

A: The main part uses tin-lead contact finish, while the substitute uses tin finish. Both finishes provide equivalent contact resistance and durability at the specified thickness of 80.0µin (2.03µm). The tin finish is selected for RoHS compliance.

Q: Can I use part 4-640443-2 in place of 1-640443-2 in an existing design?

A: Yes, provided the application does not have specific requirements for tin-lead contact finish. The substitute part maintains mechanical and electrical compatibility across all critical parameters.

Q: Which part should I select for new designs?

A: For new designs, select part 4-640443-2 if RoHS compliance is required or anticipated. This ensures regulatory alignment and future-proofs the design against evolving compliance mandates.

Q: Are there any performance differences between these parts?

A: No performance differences exist. Both parts are manufactured by TE Connectivity within the MTA-100 series and share identical mechanical specifications, mounting configurations, and environmental ratings (MSL 1).

Q: What does MSL 1 (Unlimited) mean?

A: Moisture Sensitivity Level 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. Both parts carry this classification.

Q: Are both parts currently available?

A: Yes. Part 1-640443-2 has 972 units in stock, and part 4-640443-2 has 1009 units in stock. Both are active products from TE Connectivity.

Q: Can these connectors be used with both discrete and ribbon cable?

A: Yes. Both parts support discrete or ribbon cable termination via IDC at 28 AWG wire gauge.