TE Connectivity 640599-3 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640599-3 is a 3-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 18 AWG discrete or ribbon cable. This connector features a 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

640599-3

TE Connectivity AMP ConnectorsIn Stock: 1016640599-3 Datasheet

Current PartRFQ

3-640599-3

TE Connectivity AMP ConnectorsIn Stock: 40603-640599-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 640599-3 is determined by strict equivalence across the following critical parameters:

• Connector Type & Position Count: Receptacle configuration with 3 positions
• Pitch Specification: 0.156" (3.96mm) contact spacing
• Series Compatibility: MTA-156 series
• Cable Termination: IDC method for 18 AWG wire
• Mounting Configuration: Free hanging in-line orientation with locking ramp fastening
• Contact Geometry: Female socket contacts with feed-through capability
• Contact Finish Thickness: 80.0µin (2.03µm)

The substitute part 3-640599-3 maintains identical electrical and mechanical specifications across all these parameters, ensuring direct functional equivalence. The primary differences are product status (active vs. obsolete) and compliance certifications (RoHS compliant vs. non-compliant).

Parameter Comparison

Engineering Selection Recommendations

The substitute part 3-640599-3 is the direct equivalent for the obsolete 640599-3. Selection between these parts is determined by regulatory and compliance requirements:

For applications requiring RoHS compliance: The 3-640599-3 substitute part is the appropriate selection. This part maintains active product status with TE Connectivity and carries RoHS compliant certification, making it suitable for new designs and procurement in regulated markets.

For legacy system maintenance or existing inventory: The original 640599-3 remains functionally equivalent where RoHS non-compliance is not a constraint. However, given its obsolete status, long-term availability cannot be assured.

Both parts share identical electrical and mechanical specifications, including connector geometry, contact configuration, termination method, and wire gauge compatibility. The contact finish differs only in composition (tin-lead vs. tin), with both maintaining the same thickness specification of 80.0µin (2.03µm).

Frequently Asked Questions (FAQ)

Q: Can the 3-640599-3 substitute directly replace the 640599-3 in existing assemblies?

A: Yes. The 3-640599-3 maintains identical connector geometry, pitch, position count, mounting configuration, and IDC termination specifications. Direct mechanical and electrical compatibility is confirmed across all functional parameters.

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

A: The 640599-3 features a tin-lead contact finish, while the 3-640599-3 features tin. Both finishes maintain the same thickness of 80.0µin (2.03µm). The tin finish in the substitute part supports RoHS compliance requirements.

Q: Why is the 640599-3 listed as obsolete?

A: The 640599-3 is classified as obsolete by TE Connectivity. The 3-640599-3 is the active equivalent part and is the recommended selection for new designs and ongoing procurement.

Q: Are there packaging differences between these parts?

A: The 640599-3 is listed with unspecified packaging, while the 3-640599-3 is supplied in bulk packaging. Both parts are identical in form, fit, and function.

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

A: Both parts carry a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without moisture control requirements.

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

A: Yes. Both the 640599-3 and 3-640599-3 support discrete or ribbon cable termination at 18 AWG via IDC method.

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

A: The pitch is 0.156" (3.96mm), representing the center-to-center spacing between contact positions. This specification is critical for mechanical compatibility with mating connectors and PCB layouts.