TE Connectivity 640620-8 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640620-8 is an 8-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

640620-8

TE Connectivity AMP ConnectorsIn Stock: 981640620-8 Datasheet

Current PartRFQ

3-640620-8

TE Connectivity AMP ConnectorsIn Stock: 208793-640620-8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 640620-8 is determined by strict equivalence across the following critical parameters:

Electrical and Mechanical Compatibility Parameters:

• Series designation (MTA-100)
• Connector type (Receptacle)
• Number of positions (8)
• Contact type (Female Socket)
• Pitch specification (0.100" / 2.54mm)
• Cable termination method (IDC)
• Wire gauge compatibility (22 AWG)
• Mounting configuration (Free Hanging, Right Angle)
• Fastening mechanism (Locking Ramp)

Functional Equivalence: The substitute part 3-640620-8 maintains identical electrical and mechanical specifications to the main part number 640620-8. Both connectors are MTA-100 series 8-position receptacles with IDC termination for 22 AWG cable. The primary distinction between these parts is product status and compliance classification rather than functional performance.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: 3-640620-8

The part number 3-640620-8 is the direct functional equivalent to 640620-8. Selection of this substitute is supported by the following engineering criteria:

Product Status Alignment: The 640620-8 is classified as obsolete, whereas 3-640620-8 maintains active product status. This distinction ensures continued availability and manufacturing support for new designs and replacement applications.

Compliance Classification: The 640620-8 is RoHS non-compliant, while 3-640620-8 is RoHS Compliant. For applications subject to RoHS directives or customer compliance requirements, 3-640620-8 provides the necessary regulatory alignment.

Electrical and Mechanical Equivalence: Both connectors share identical specifications across all critical parameters: 8-position MTA-100 series receptacle, IDC termination, 22 AWG wire gauge, 0.100" pitch, female socket contacts, locking ramp fastening, and feed-through features. These parameters establish full functional interchangeability.

Contact Finish Specification: The 640620-8 specifies tin-lead contact finish, while 3-640620-8 specifies tin contact finish. Both finishes maintain the same thickness specification of 80.0µin (2.03µm), ensuring equivalent electrical performance and contact reliability.

Frequently Asked Questions (FAQ)

Q: Can 3-640620-8 be used as a direct replacement for 640620-8 in existing applications?

A: Yes. The 3-640620-8 is functionally equivalent to 640620-8 across all electrical and mechanical parameters. Both connectors are 8-position MTA-100 series receptacles with identical pitch, contact type, IDC termination, wire gauge, and mounting specifications. The connectors are mechanically and electrically interchangeable.

Q: What is the difference between the tin-lead finish on 640620-8 and the tin finish on 3-640620-8?

A: Both finishes are applied at the same thickness of 80.0µin (2.03µm). The contact finish material differs between the two parts, but both specifications meet the electrical performance requirements for this connector category. The tin finish on 3-640620-8 aligns with RoHS compliance requirements.

Q: Why is 640620-8 classified as obsolete?

A: The 640620-8 is an obsolete product, meaning it is no longer in active production. The 3-640620-8 serves as the active equivalent, providing continued design support and procurement availability.

Q: Are there any packaging differences between 640620-8 and 3-640620-8?

A: The 640620-8 is supplied in unspecified packaging, while 3-640620-8 is supplied in bulk packaging. Both parts are identical in form, fit, and function. Packaging differences do not affect connector performance or compatibility.

Q: What is the significance of the RoHS compliance difference?

A: The 640620-8 is RoHS non-compliant, while 3-640620-8 is RoHS Compliant. For applications or markets requiring RoHS compliance, 3-640620-8 is the appropriate selection. Both connectors meet identical electrical and mechanical specifications.

Q: Can 640620-8 and 3-640620-8 be mixed in the same assembly?

A: Yes. Both connectors are mechanically and electrically equivalent. They share identical pitch, contact configuration, termination method, and mounting specifications, allowing them to be used interchangeably within the same assembly or system.

Q: What wire gauges are compatible with these connectors?

A: Both 640620-8 and 3-640620-8 are specified for 22 AWG wire. The connectors support discrete or ribbon cable termination via IDC method at this wire gauge.

Q: Is the MTA-100 series still in production?

A: The 3-640620-8 maintains active product status within the MTA-100 series, ensuring continued availability and manufacturing support. The 640620-8 is obsolete but can be replaced with 3-640620-8 for all applications.