TE Connectivity 640601-2 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640601-2 is a 2-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, free-hanging in-line mounting, and locking ramp fastening. The part is currently active in production with 694 pieces in stock.

Substitute parts are identified to address specific compliance requirements, packaging preferences, or inventory availability while maintaining functional and mechanical compatibility within the MTA-156 connector family.

Substiute Parts

640601-2

TE Connectivity AMP ConnectorsIn Stock: 788640601-2 Datasheet

Current PartRFQ

3-640601-2

TE Connectivity AMP ConnectorsIn Stock: 175653-640601-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between the TE Connectivity 640601-2 and its equivalent 3-640601-2 is based on strict alignment of the following critical parameters:

Critical Matching Parameters:

• Connector type (Receptacle)
• Number of positions (2)
• Pitch specification (0.156" / 3.96mm)
• Contact type (Female Socket)
• Cable termination method (IDC)
• Wire gauge compatibility (22 AWG)
• Mounting configuration (Free Hanging In-Line)
• Fastening mechanism (Locking Ramp)
• Series designation (MTA-156)

Variable Parameters Allowing Substitution:

• Contact finish material (Tin-Lead vs. Tin)
• Packaging format (standard vs. bulk)
• RoHS compliance status
• Inventory availability

Both parts maintain identical mechanical and electrical interfaces, ensuring direct functional interchangeability within applications where the specified parameter set is required.

Parameter Comparison

Engineering Selection Recommendations

640601-2 (Tin-Lead Contact Finish, RoHS Non-Compliant)

Select this part for applications where tin-lead contact finish is specified or where RoHS compliance is not a regulatory requirement. This configuration is suitable for legacy systems, military applications, or designs where lead-based finishes provide required performance characteristics. Current inventory: 694 pieces.

3-640601-2 (Tin Contact Finish, RoHS Compliant)

Select this part for applications requiring RoHS compliance or where lead-free contact finish is mandated by regulatory frameworks or customer specifications. This variant is suitable for commercial, industrial, and consumer applications subject to environmental regulations. Bulk packaging format supports high-volume production requirements. Current inventory: 17,512 pieces.

Both parts maintain identical mechanical and electrical performance within the MTA-156 series specification. Selection between these variants is determined by compliance requirements and contact finish specifications rather than functional capability.

Frequently Asked Questions (FAQ)

Q: Are the 640601-2 and 3-640601-2 mechanically interchangeable?

A: Yes. Both connectors share identical mechanical specifications including pitch (0.156"), mounting type (free-hanging in-line), fastening mechanism (locking ramp), and connector body dimensions. They are direct mechanical substitutes.

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

A: The 640601-2 features tin-lead contact finish, while the 3-640601-2 features tin contact finish. Both maintain the same contact finish thickness (80.0µin / 2.03µm). The primary difference is the presence of lead in the 640601-2, which affects RoHS compliance status. Tin-lead finishes are used in applications where lead-based materials are permitted; tin finishes are required for RoHS-compliant applications.

Q: What does RoHS compliance mean for these connectors?

A: RoHS (Restriction of Hazardous Substances) compliance restricts the use of specific hazardous materials, including lead. The 3-640601-2 is RoHS compliant and suitable for applications subject to environmental regulations. The 640601-2 is RoHS non-compliant due to its tin-lead contact finish and is suitable for applications where RoHS compliance is not required.

Q: Can I use the 3-640601-2 as a direct replacement for the 640601-2 in my design?

A: Direct replacement is possible if your application does not specifically require tin-lead contact finish and if RoHS compliance is acceptable or required. Both connectors provide identical electrical and mechanical performance within the MTA-156 series. Verify that your application specifications do not mandate tin-lead finish before substituting.

Q: What is the difference in packaging between these two parts?

A: The 640601-2 is supplied in standard packaging, while the 3-640601-2 is supplied in bulk packaging. Bulk packaging is typically used for high-volume production runs and offers cost advantages for large-quantity orders. Standard packaging is suitable for smaller quantities or mixed component orders.

Q: Are both connectors suitable for IDC termination with 22 AWG cable?

A: Yes. Both the 640601-2 and 3-640601-2 are designed for IDC (Insulation Displacement Contact) termination with 22 AWG discrete or ribbon cable. They support identical wire gauge specifications and termination methods.

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

A: Both connectors have a Moisture Sensitivity Level (MSL) of 1, which indicates unlimited shelf life without moisture control requirements. No special storage or handling conditions are necessary for either part.

Q: Can these connectors be used with ribbon cable?

A: Yes. Both connectors support discrete or ribbon cable configurations. The IDC termination method accommodates both cable types within the 22 AWG wire gauge specification.