TE Connectivity 640600-7 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640600-7 is a 7-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 20 AWG discrete or ribbon cable. This connector features tin-lead contact finish, free-hanging in-line mounting, and locking ramp fastening. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability for new production and field service applications.

Substiute Parts

640600-7

TE Connectivity AMP ConnectorsIn Stock: 997640600-7 Datasheet

Current PartRFQ

3-640600-7

TE Connectivity AMP ConnectorsIn Stock: 9423-640600-7 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 640600-7 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Series designation (MTA-156)
• Connector type and contact configuration (7-position receptacle, female socket)
• Pitch specification (0.156" / 3.96mm)
• Cable termination method (IDC)
• Wire gauge compatibility (20 AWG)
• Mounting and fastening characteristics (free-hanging in-line with locking ramp)
• Number of rows (1)
• Feed-through feature

Acceptable Variations:

• Contact finish composition (tin-lead to tin transition)
• Product status (obsolete to active)
• RoHS compliance status
• Packaging configuration

The substitute part 3-640600-7 maintains full electrical and mechanical compatibility with the original 640600-7 while offering active product status and improved regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: 3-640600-7

The TE Connectivity 3-640600-7 is the direct functional equivalent of the obsolete 640600-7. This substitute part provides:

• Full electrical and mechanical compatibility across all critical connector parameters
• Active product status, ensuring continued availability and manufacturing support
• RoHS compliance, meeting current regulatory requirements for new designs and production
• Identical contact finish thickness and connector geometry
• Equivalent performance in IDC termination applications with 20 AWG cable

The transition from tin-lead to tin contact finish in the 3-640600-7 represents a standard industry evolution aligned with RoHS directives and does not compromise electrical performance or mechanical fit within the MTA-156 series specification.

Frequently Asked Questions (FAQ)

Q: Can the 3-640600-7 be used as a direct replacement for the 640600-7 in existing designs?

A: Yes. The 3-640600-7 maintains identical electrical and mechanical specifications across all critical parameters including connector type, position count, pitch, termination method, wire gauge, and mounting configuration. The contact finish change from tin-lead to tin does not affect functional compatibility.

Q: What is the difference between the 640600-7 and 3-640600-7?

A: The primary differences are product status and regulatory compliance. The 640600-7 is obsolete with tin-lead contact finish and non-RoHS compliance. The 3-640600-7 is an active product with tin contact finish and RoHS compliance. Both connectors are functionally equivalent within the MTA-156 series.

Q: Are there any compatibility concerns with ribbon cable or discrete wire termination?

A: No. Both the 640600-7 and 3-640600-7 support IDC termination with discrete or ribbon cable at 20 AWG wire gauge. The IDC contact design and locking ramp fastening mechanism are identical between the two parts.

Q: What is the significance of the contact finish thickness specification?

A: Both parts specify 80.0µin (2.03µm) contact finish thickness, ensuring equivalent electrical conductivity, corrosion resistance, and contact reliability. This parameter is maintained across the substitution.

Q: Does the packaging difference affect connector performance?

A: No. Packaging configuration (bulk versus other formats) affects logistics and handling but does not alter the electrical or mechanical performance of the connector itself.

Q: Is the 3-640600-7 suitable for new production designs?

A: Yes. The 3-640600-7 is an active product with RoHS compliance, making it the appropriate choice for new designs. The obsolete 640600-7 should be replaced with the 3-640600-7 in all new applications.

Q: Are there any environmental or moisture sensitivity differences?

A: No. Both parts carry an MSL rating of 1 (Unlimited), indicating identical moisture sensitivity characteristics and environmental performance.