TE Connectivity 640605-6 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640605-6 is a 6-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 and is classified as obsolete. Due to its obsolete product status and RoHS non-compliant classification, identification of functionally equivalent active alternatives is necessary for ongoing design support and procurement continuity.

Substiute Parts

640605-6

TE Connectivity AMP ConnectorsIn Stock: 1216640605-6 Datasheet

Current PartRFQ

3-640605-6

TE Connectivity AMP ConnectorsIn Stock: 9433-640605-6 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 640605-6 is based on strict equivalence across all critical electrical and mechanical parameters. The substitute part 3-640605-6 maintains identical specifications in the following key areas:

• Connector type, position count, and pitch (0.156")
• Contact configuration (6-position female socket, single row)
• Cable termination method (IDC for 20 AWG wire)
• Mounting orientation (free hanging, in-line)
• Feed-through feature
• Contact finish thickness (80.0µin)
• Moisture sensitivity rating (MSL 1)
• Series designation (MTA-156)

The primary distinction between the main part and its substitute is the contact finish material and product status. The 640605-6 uses tin-lead finish and is obsolete, while the 3-640605-6 uses tin finish and maintains active product status with RoHS compliance.

Parameter Comparison

Engineering Selection Recommendations

The 3-640605-6 serves as the direct functional equivalent to the obsolete 640605-6. Selection of the substitute part is supported by the following engineering considerations:

Product Status: The 640605-6 is classified as obsolete, limiting long-term availability and procurement reliability. The 3-640605-6 maintains active product status, ensuring continued supply chain access and manufacturer support.

Regulatory Compliance: The 640605-6 is RoHS non-compliant, which may conflict with current design standards and regulatory requirements in many markets. The 3-640605-6 is RoHS compliant, aligning with modern environmental and safety directives.

Contact Finish: The transition from tin-lead to tin finish in the 3-640605-6 reflects industry-wide compliance with lead-free initiatives. Both finishes maintain identical thickness specifications (80.0µin), ensuring equivalent electrical and mechanical performance in IDC termination applications.

Electrical and Mechanical Equivalence: All critical parameters—connector geometry, position count, pitch, contact configuration, termination method, and wire gauge compatibility—remain unchanged between the main part and substitute. This ensures direct interchangeability in existing designs without modification to mating components or cable assemblies.

Frequently Asked Questions (FAQ)

Q: Can the 3-640605-6 directly replace the 640605-6 in existing designs?

A: Yes. The 3-640605-6 maintains identical electrical and mechanical specifications across all critical parameters, including connector type, position count, pitch, contact configuration, IDC termination compatibility, and wire gauge. Direct substitution is supported without design modification.

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

A: Both finishes are applied at identical thickness (80.0µin). The tin finish in the 3-640605-6 reflects lead-free manufacturing standards. Electrical and mechanical performance in IDC applications remains equivalent.

Q: Why is the 640605-6 classified as obsolete?

A: Obsolescence reflects the manufacturer's discontinuation of this product line in favor of active alternatives. The 3-640605-6 represents the current active equivalent within the MTA-156 series.

Q: Does RoHS compliance affect connector performance?

A: RoHS compliance addresses material composition and environmental standards, not electrical or mechanical performance. The 3-640605-6 delivers equivalent performance while meeting current regulatory requirements.

Q: Are there packaging differences between these parts?

A: The 640605-6 packaging is unspecified in available documentation. The 3-640605-6 is supplied in bulk packaging. Both parts are functionally identical for component selection purposes.

Q: What wire types are compatible with both connectors?

A: Both the 640605-6 and 3-640605-6 support discrete or ribbon cable at 20 AWG wire gauge, with IDC termination method. Compatibility with existing cable assemblies is maintained.

Q: Is the moisture sensitivity rating the same for both parts?

A: Yes. Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage, handling, or use.