TE Connectivity 640620-7 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640620-7 is a 7-position rectangular receptacle connector from the MTA-100 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 and RoHS non-compliant classification, identification of equivalent substitute parts is necessary for ongoing design support, maintenance, and new procurement activities.

Substiute Parts

640620-7

TE Connectivity AMP ConnectorsIn Stock: 1261640620-7 Datasheet

Current PartRFQ

3-640620-7

TE Connectivity AMP ConnectorsIn Stock: 14993-640620-7 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 640620-7 is determined by strict equivalence across the following critical parameters:

• Series Compatibility: Both parts must belong to the MTA-100 series
• Connector Configuration: 7-position receptacle with female socket contacts
• Pitch Specification: 0.100" (2.54mm) center-to-center spacing
• Termination Method: IDC cable termination for 22 AWG wire
• Mounting and Fastening: Free hanging (in-line) and right-angle orientation with locking ramp fastening
• Electrical Characteristics: Contact finish thickness of 80.0µin (2.03µm)
• Environmental Rating: Moisture sensitivity level 1 (unlimited)

The substitute part 3-640620-7 maintains full electrical and mechanical compatibility with the original 640620-7 across all specified parameters. The primary distinction is the contact finish material and product status classification.

Parameter Comparison

Engineering Selection Recommendations

The 3-640620-7 serves as the direct substitute for the obsolete 640620-7 connector. Selection between these parts is determined by regulatory and compliance requirements:

For New Designs and RoHS-Compliant Applications: The 3-640620-7 is the appropriate selection. This part maintains active product status with TE Connectivity and carries RoHS compliance certification, meeting current environmental and regulatory standards. The tin contact finish (versus tin-lead) provides equivalent electrical performance while satisfying modern manufacturing directives.

For Legacy System Maintenance: The 640620-7 remains available in inventory (1162 pieces) for direct replacement in existing installations where RoHS compliance is not mandated. However, the 3-640620-7 is functionally interchangeable and can be substituted without modification to connector interfaces or cable assemblies.

Compliance Considerations: The transition from tin-lead to tin contact finish in the 3-640620-7 does not affect electrical or mechanical performance. Both parts maintain identical contact finish thickness (80.0µin), pitch specification, and termination characteristics. The RoHS compliance status of the 3-640620-7 aligns with current procurement standards for most industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can the 3-640620-7 be used as a direct replacement for the 640620-7 in existing assemblies?

A: Yes. The 3-640620-7 is mechanically and electrically equivalent to the 640620-7. Both connectors share identical pitch (0.100"), position count (7), mounting configuration, and IDC termination specifications for 22 AWG cable. No modifications to mating connectors or cable assemblies are required.

Q: What is the difference between the tin-lead finish on the 640620-7 and the tin finish on the 3-640620-7?

A: Both finishes maintain the same contact finish thickness of 80.0µin (2.03µm) and provide equivalent electrical conductivity and contact resistance. The tin finish on the 3-640620-7 reflects compliance with RoHS directives that restrict lead content in electronic components. Performance characteristics remain unchanged.

Q: Why is the 640620-7 classified as obsolete?

A: The 640620-7 is obsolete due to its RoHS non-compliant status and the availability of the functionally equivalent 3-640620-7 as an active replacement. TE Connectivity has transitioned this product line to RoHS-compliant variants.

Q: Are there any packaging differences between the 640620-7 and 3-640620-7?

A: The 640620-7 is supplied in standard packaging, while the 3-640620-7 is supplied in bulk packaging. This distinction affects procurement and inventory management but does not impact connector performance or compatibility.

Q: Can the 3-640620-7 be used in applications requiring RoHS compliance?

A: Yes. The 3-640620-7 carries RoHS compliance certification and is suitable for all applications subject to RoHS directives and environmental regulations.

Q: What is the moisture sensitivity level for both connectors?

A: Both the 640620-7 and 3-640620-7 are rated at MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. These connectors do not require special handling or storage conditions related to moisture exposure.

Q: Are both connectors suitable for IDC termination with discrete and ribbon cable?

A: Yes. Both connectors support IDC termination with discrete or ribbon cable at 22 AWG wire gauge. The locking ramp fastening mechanism accommodates both cable types without modification.