TE Connectivity 640606-7 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640606-7 is a 7-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 22 AWG discrete or ribbon cable. This connector features tin-lead contact finish and is classified as obsolete. Due to its obsolete product status, identification of active equivalent parts is necessary to support ongoing maintenance, repair, and new design requirements where this connector type is specified.

Substiute Parts

640606-7

TE Connectivity AMP ConnectorsIn Stock: 1132640606-7 Datasheet

Current PartRFQ

3-640606-7

TE Connectivity AMP ConnectorsIn Stock: 9993-640606-7 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 640606-7 is determined by strict equivalence across the following critical parameters:

• Connector Type & Position Count: Both parts must be receptacle connectors with 7 positions
• Pitch & Spacing: 0.156" (3.96mm) pitch in single-row configuration
• Cable Termination Method: IDC termination capability for 22 AWG wire
• Series Compatibility: MTA-156 series designation
• Mounting Configuration: Free hanging in-line mounting type
• Contact Finish Specification: Tin or tin-lead contact finish with 80.0µin thickness

The substitute part 3-640606-7 maintains identical mechanical and electrical specifications across all these parameters, with the primary distinction being product status (active versus obsolete) and contact finish composition (tin versus tin-lead).

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 3-640606-7 serves as the direct active equivalent to the obsolete 640606-7 connector. Selection of the substitute part is supported by the following engineering considerations:

Product Status: The 640606-7 is classified as obsolete, whereas the 3-640606-7 maintains active product status with current manufacturing support and availability.

Regulatory Compliance: The substitute part 3-640606-7 is RoHS compliant, addressing modern regulatory requirements for electronic components. The original 640606-7 is RoHS non-compliant. For applications subject to RoHS directives or customer specifications requiring RoHS compliance, the substitute part is the appropriate selection.

Contact Finish: The primary technical difference is the contact finish composition. The original part specifies tin-lead finish, while the substitute specifies tin finish. Both maintain identical contact finish thickness (80.0µin / 2.03µm) and are compatible with IDC termination for 22 AWG cable.

Mechanical & Electrical Equivalence: All mechanical dimensions, electrical specifications, and functional parameters remain identical between the two parts, including pitch, position count, mounting configuration, and cable termination method.

Frequently Asked Questions (FAQ)

Q: Can the 3-640606-7 be used as a direct replacement for the 640606-7 in existing designs?

A: Yes. The 3-640606-7 maintains identical mechanical and electrical specifications across all critical parameters including connector type, position count, pitch, mounting configuration, and IDC termination capability for 22 AWG cable. The parts are mechanically and functionally interchangeable.

Q: What is the difference between the tin-lead finish on the 640606-7 and the tin finish on the 3-640606-7?

A: Both finishes maintain the same thickness specification (80.0µin / 2.03µm). The contact finish composition differs, with the original part using tin-lead and the substitute using tin. Both finishes are compatible with IDC termination and provide equivalent electrical performance for this connector application.

Q: Why is the 640606-7 listed as obsolete?

A: The 640606-7 is classified as obsolete by TE Connectivity. The active equivalent 3-640606-7 is the current production part for this connector type and should be specified for new designs and ongoing procurement.

Q: Does the RoHS compliance difference affect compatibility?

A: The 3-640606-7 is RoHS compliant while the 640606-7 is RoHS non-compliant. For applications or customers requiring RoHS compliance, the 3-640606-7 is the appropriate selection. The RoHS status does not affect mechanical or electrical compatibility between the parts.

Q: Are there packaging differences between these parts?

A: The 640606-7 packaging is listed as unspecified, while the 3-640606-7 is supplied in bulk packaging. Both parts are available in current inventory.

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

A: Yes. Both the 640606-7 and 3-640606-7 support discrete or ribbon cable termination via IDC method at 22 AWG wire gauge.

Q: What is the pitch specification and why is it important?

A: Both connectors have a 0.156" (3.96mm) pitch, which defines the center-to-center spacing between the 7 contact positions. This pitch specification is critical for mechanical compatibility with mating connectors and cable assemblies.