TE Connectivity 640443-6 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640443-6 is a 6-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, a closed-end design, and free-hanging or right-angle mounting configuration with locking ramp fastening.

The 640443-6 is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing maintenance, repair, and legacy system requirements where this connector type remains in service.

Substiute Parts

640443-6

TE Connectivity AMP ConnectorsIn Stock: 1109640443-6 Datasheet

Current PartRFQ

3-640443-6

TE Connectivity AMP ConnectorsIn Stock: 112963-640443-6 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 640443-6 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Connector type (Rectangular Receptacle)
• Number of positions (6)
• Contact type (Female Socket)
• Pitch (0.100" / 2.54mm)
• Number of rows (1)
• Cable termination method (IDC)
• Wire gauge (28 AWG)

Mechanical Compatibility Parameters:

• Mounting type (Free Hanging / Right Angle)
• Fastening type (Locking Ramp)
• Features (Closed End)
• Contact finish thickness (80.0µin / 2.03µm)

Series Designation:

• MTA-100 series classification

Substitute parts must maintain identical values across all listed parameters. Contact finish material (tin-lead versus tin) does not prevent substitution when all other electrical and mechanical specifications remain equivalent.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: 3-640443-6

The 3-640443-6 is a direct functional equivalent to the 640443-6 across all critical electrical and mechanical parameters. Both connectors share identical specifications for connector type, position count, pitch, contact configuration, mounting method, fastening mechanism, cable termination approach, and wire gauge compatibility.

The 3-640443-6 is classified as an active product with current manufacturing and inventory availability (11,200 pieces in stock), whereas the 640443-6 is obsolete. This status difference makes the 3-640443-6 the appropriate selection for new applications and ongoing system support.

The 3-640443-6 achieves RoHS compliance and uses tin contact finish, compared to the tin-lead finish of the original 640443-6. These material differences do not affect electrical or mechanical compatibility for IDC termination applications at 28 AWG wire gauge.

Both parts carry identical ECCN (EAR99) and HTSUS (8536.69.8000) classifications, indicating equivalent regulatory treatment for export and tariff purposes.

Frequently Asked Questions (FAQ)

Q: Can the 3-640443-6 be used as a direct replacement for the 640443-6?

A: Yes. The 3-640443-6 maintains identical electrical and mechanical specifications across all critical parameters including connector type, position count, pitch, contact configuration, mounting type, fastening mechanism, IDC termination method, and 28 AWG wire gauge compatibility. The parts are functionally equivalent for connector applications.

Q: What is the difference between the tin-lead finish on the 640443-6 and the tin finish on the 3-640443-6?

A: The contact finish material differs between these parts. The 640443-6 uses tin-lead plating at 80.0µin thickness, while the 3-640443-6 uses tin plating at the same thickness. Both finishes provide equivalent electrical conductivity and contact performance for IDC termination applications. The tin finish on the 3-640443-6 supports RoHS compliance requirements.

Q: Why is the 640443-6 listed as obsolete?

A: The 640443-6 is classified as obsolete by the manufacturer. The 3-640443-6 represents the current active equivalent in the MTA-100 series product line and is the recommended selection for ongoing applications.

Q: Are there packaging differences between these parts?

A: The 640443-6 packaging specification is not provided in the available data. The 3-640443-6 is supplied in bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: What wire types are compatible with both connectors?

A: Both the 640443-6 and 3-640443-6 accept discrete or ribbon cable at 28 AWG wire gauge. IDC termination is used for both connectors, allowing direct cable insertion without stripping.

Q: Are the mounting configurations identical?

A: Yes. Both connectors support free-hanging (in-line) and right-angle mounting configurations with locking ramp fastening. Mounting orientation selection depends on your application layout requirements.

Q: What is the pitch specification for these connectors?

A: Both connectors use 0.100" (2.54mm) pitch, which is the standard spacing between contact positions in the MTA-100 series.