TE Connectivity 640428-9 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640428-9 is a 9-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, a closed-end design, and free-hanging in-line mounting with locking ramp fastening.

The 640428-9 is classified as obsolete. Locating equivalent or substitute components is necessary to support legacy system maintenance, repair, and continued field deployment where this connector type remains in use.

Substiute Parts

640428-9

TE Connectivity AMP ConnectorsIn Stock: 1040640428-9 Datasheet

Current PartRFQ

3-640428-9

TE Connectivity AMP ConnectorsIn Stock: 13223-640428-9 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 640428-9 is determined by strict equivalence across the following critical parameters:

• Connector Type & Position Count: Receptacle, 9-position configuration
• Pitch & Row Configuration: 0.156" (3.96mm) pitch, single row
• Mounting & Fastening: Free hanging in-line with locking ramp fastening
• Cable Termination Method: IDC termination for 22 AWG wire
• Contact Configuration: Female socket contacts with closed-end design
• Contact Finish Thickness: 80.0µin (2.03µm) plating thickness

The substitute part 3-640428-9 maintains identical mechanical and electrical specifications across all these parameters. The primary difference is the contact finish material (tin versus tin-lead) and product status (active versus obsolete).

Parameter Comparison

Engineering Selection Recommendations

The 3-640428-9 is the direct substitute for the obsolete 640428-9. Both connectors are manufactured by TE Connectivity within the MTA-156 series and share identical mechanical and electrical specifications for connector type, position count, pitch, mounting configuration, and cable termination method.

Product Status Consideration: The 640428-9 is obsolete, while the 3-640428-9 is active. For new designs, repair operations, or system upgrades, the 3-640428-9 is the appropriate selection due to its active product status and continued availability.

Compliance Consideration: The 3-640428-9 is ROHS3 compliant, whereas the 640428-9 is RoHS non-compliant. The contact finish difference (tin versus tin-lead) reflects this compliance distinction. For applications subject to RoHS regulations or environmental compliance requirements, the 3-640428-9 is the required choice.

Functional Equivalence: Both connectors support identical IDC termination for 22 AWG discrete or ribbon cable, feature the same 0.156" pitch and 9-position configuration, and employ locking ramp fastening. The connectors are mechanically and electrically interchangeable in applications where the original 640428-9 was specified.

Frequently Asked Questions (FAQ)

Q: Can the 3-640428-9 be used as a direct replacement for the 640428-9?

A: Yes. The 3-640428-9 is a direct substitute. Both connectors share identical specifications for connector type, position count, pitch, mounting method, fastening type, cable termination, wire gauge, and contact configuration. The primary differences are product status (active versus obsolete) and contact finish material (tin versus tin-lead).

Q: What is the difference between the tin-lead finish on the 640428-9 and the tin finish on the 3-640428-9?

A: The 640428-9 features a tin-lead contact finish and is RoHS non-compliant. The 3-640428-9 features a tin contact finish and is ROHS3 compliant. Both finishes maintain the same 80.0µin (2.03µm) plating thickness. The tin finish on the 3-640428-9 reflects compliance with RoHS regulations that restrict lead content in electronic components.

Q: Are these connectors compatible with the same cable types?

A: Yes. Both the 640428-9 and 3-640428-9 support IDC termination for discrete or ribbon cable at 22 AWG wire gauge. The connectors are mechanically and electrically compatible with identical cable specifications.

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

A: Both connectors feature a 0.156" (3.96mm) pitch, which defines the center-to-center spacing between contact positions. Pitch is a critical parameter for mechanical compatibility. Connectors with different pitch values are not interchangeable.

Q: Why is the 640428-9 listed as obsolete?

A: The 640428-9 is classified as obsolete by TE Connectivity. The 3-640428-9 is the active equivalent product. For ongoing support, maintenance, and new applications, the 3-640428-9 should be specified.

Q: What does "closed end" mean in the connector specification?

A: Closed end indicates that the connector housing has a sealed or enclosed design at the rear, preventing access to the internal contact cavity from the back. This design provides protection and ensures proper contact alignment during mating.

Q: Are there any packaging differences between these connectors?

A: The 640428-9 packaging is listed as unspecified in the provided data. The 3-640428-9 is supplied in bulk packaging. Both connectors are available in new original condition with substantial inventory levels.