TE Connectivity 640429-8 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640429-8 is an 8-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 24 AWG discrete or ribbon cable. This connector features tin-lead contact finish, closed-end design, and free-hanging in-line mounting with locking ramp fastening. The part is currently active in production with 1054 pieces in stock.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across connector specifications. Alternative part numbers may be necessary due to packaging requirements, compliance status updates, or inventory availability while preserving functional compatibility in the application circuit.

Substiute Parts

640429-8

TE Connectivity AMP ConnectorsIn Stock: 1085640429-8 Datasheet

Current PartRFQ

3-640429-8

TE Connectivity AMP ConnectorsIn Stock: 13533-640429-8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 3-640429-8 is functionally equivalent to the main part 640429-8 based on the following critical parameters that determine substitution validity:

Electrical Compatibility Parameters:

• Connector type, contact type, and number of positions (8-position receptacle with female sockets)
• Pitch specification (0.156" / 3.96mm) ensuring mechanical mating compatibility
• Cable termination method (IDC) and wire gauge (24 AWG) for proper signal transmission
• Contact finish thickness (80.0µin / 2.03µm) maintaining electrical performance

Mechanical Compatibility Parameters:

• Single-row configuration with free-hanging in-line mounting
• Locking ramp fastening mechanism
• Closed-end design and white color
• MTA-156 series designation

Environmental Parameters:

• Moisture Sensitivity Level 1 (Unlimited) for both parts

The primary difference between these parts is the contact finish material (tin-lead versus tin) and packaging configuration (unspecified versus bulk), along with RoHS compliance status. These differences do not affect the core electrical or mechanical function of the connector in standard applications.

Parameter Comparison

Engineering Selection Recommendations

640429-8 Selection Criteria: The 640429-8 is appropriate for applications where tin-lead contact finish is specified or required by design documentation. This part maintains active production status and is suitable for legacy systems or designs that do not require RoHS3 compliance.

3-640429-8 Selection Criteria: The 3-640429-8 is the preferred selection for new designs and applications requiring ROHS3 compliance. The tin contact finish provides equivalent electrical performance to the tin-lead variant while meeting current environmental regulations. This part offers higher inventory availability (1275 pieces versus 1054 pieces) and is supplied in bulk packaging.

Both parts share identical electrical and mechanical specifications, including connector type, position count, pitch, mounting configuration, cable termination method, and wire gauge. The selection between these parts should be based on compliance requirements and packaging needs rather than functional performance considerations.

Frequently Asked Questions (FAQ)

Q: Can 3-640429-8 be used as a direct replacement for 640429-8 in existing applications?

A: Yes. Both connectors are mechanically and electrically compatible. They share identical pitch (0.156"), position count (8), mounting type (free-hanging in-line), fastening mechanism (locking ramp), cable termination method (IDC), and wire gauge (24 AWG). The contact finish difference (tin versus tin-lead) does not affect functional compatibility in standard applications.

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

A: The main part (640429-8) features tin-lead contact finish, while the substitute (3-640429-8) features tin contact finish. Both finishes provide equivalent contact resistance and electrical performance at the specified contact finish thickness of 80.0µin (2.03µm). The tin finish in the substitute part enables ROHS3 compliance.

Q: Are there packaging differences between these two parts?

A: Yes. The 640429-8 packaging is unspecified in the provided data, while the 3-640429-8 is supplied in bulk packaging. Both parts are new original stock with active production status.

Q: Which part should be selected for new product designs?

A: The 3-640429-8 is recommended for new designs due to ROHS3 compliance status and higher inventory availability. The 640429-8 remains suitable for legacy system maintenance or applications where tin-lead finish is specifically required.

Q: Do these connectors support both discrete and ribbon cable termination?

A: Yes. Both the 640429-8 and 3-640429-8 support IDC termination for discrete or ribbon cable at 24 AWG wire gauge.

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

A: Both connectors have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.