TE Connectivity 1-640443-3 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-640443-3 is a 13-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 an active product with unlimited moisture sensitivity rating.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the connector family. The primary substitute listed differs in contact finish specification and product status, requiring careful evaluation for application compatibility and regulatory compliance.

Substiute Parts

1-640443-3

TE Connectivity AMP ConnectorsIn Stock: 10811-640443-3 Datasheet

Current PartRFQ

4-640443-3

TE Connectivity AMP ConnectorsIn Stock: 14764-640443-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for rectangular connectors in the MTA-100 series is determined by strict equivalence in the following parameters:

Critical Matching Parameters:

• Connector type (Receptacle)
• Number of positions (13)
• Pitch spacing (0.100" / 2.54mm)
• Number of rows (1)
• Cable termination method (IDC)
• Wire gauge compatibility (28 AWG)
• Mounting configuration (Free Hanging, Right Angle)
• Fastening mechanism (Locking Ramp)
• Contact type (Female Socket)
• Closed-end feature

Variable Parameters Allowing Substitution:

• Contact finish material (Tin-Lead vs. Tin)
• Contact finish thickness (when equivalent at 80.0µin)
• Product status (Active vs. Obsolete)
• RoHS compliance status
• Packaging configuration

The substitute part 4-640443-3 maintains all critical matching parameters while differing in contact finish composition and regulatory compliance classification.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (1-640443-3): The 1-640443-3 is the recommended selection for new designs and applications. This part maintains active product status with current manufacturing support. The tin-lead contact finish provides established performance characteristics in legacy and new applications where lead-containing materials are permitted.

Substitute Part Consideration (4-640443-3): The 4-640443-3 is classified as obsolete and should be selected only when existing inventory requirements or legacy system compatibility necessitate its use. This part carries RoHS Compliant certification, indicating compliance with Restriction of Hazardous Substances regulations. The tin contact finish (lead-free) represents the material composition difference from the primary part.

Compliance Considerations: Applications subject to RoHS requirements should evaluate the regulatory status of the application environment. The primary part lists RoHS status as "Not applicable," while the substitute is explicitly RoHS Compliant. Selection between these parts depends on whether the end application or regional market requires RoHS compliance.

Inventory and Availability: The primary part 1-640443-3 has 1050 pieces in stock. The substitute part 4-640443-3 has 1391 pieces available but carries obsolete status, indicating no future manufacturing support.

Frequently Asked Questions (FAQ)

Q: Can 4-640443-3 be used as a direct replacement for 1-640443-3?

A: Yes, from an electrical and mechanical standpoint. Both parts maintain identical connector geometry, pitch, position count, mounting configuration, and IDC termination method. The primary difference is contact finish material (tin-lead vs. tin) and product status (active vs. obsolete).

Q: What is the significance of the contact finish difference between these parts?

A: The main part uses tin-lead contact finish, while the substitute uses tin (lead-free) finish. Both maintain the same contact finish thickness of 80.0µin (2.03µm). The contact finish material affects solderability, corrosion resistance, and regulatory compliance. Tin-lead finishes are suitable for applications where lead is permitted; tin finishes support RoHS compliance requirements.

Q: Why is 4-640443-3 listed as obsolete?

A: Obsolete status indicates that TE Connectivity has discontinued manufacturing of this part number. While existing inventory may be available, no future production is planned. New designs should specify the active part number 1-640443-3 to ensure long-term supply chain continuity.

Q: Are these connectors compatible with both discrete and ribbon cable?

A: Yes. Both parts support IDC termination for discrete or ribbon cable at 28 AWG wire gauge. The IDC termination method accommodates both cable types without modification to the connector itself.

Q: What does the closed-end feature provide?

A: The closed-end feature prevents accidental contact with internal connector elements and provides strain relief for the cable termination area. This feature is maintained across both the main part and substitute.

Q: Is RoHS compliance a factor in selecting between these parts?

A: RoHS compliance becomes a selection factor only if the application or end market requires it. The primary part (1-640443-3) lists RoHS status as "Not applicable," while the substitute (4-640443-3) is RoHS Compliant. Applications subject to RoHS regulations should select the compliant part or verify that the primary part meets applicable requirements through the manufacturer.

Q: Can these connectors be used in right-angle and in-line configurations?

A: Yes. Both parts support free-hanging mounting in both right-angle and in-line orientations. The locking ramp fastening mechanism secures the connector in either configuration.

Q: What is the moisture sensitivity level, and what does it mean?

A: Both parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions. These connectors can be stored and handled without special humidity control measures or baking requirements prior to soldering or assembly.