TE Connectivity 640429-9 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640429-9 is a 9-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 and is classified as a free-hanging, in-line mounted component with locking ramp fastening. The part is currently active in production with 812 units in stock.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across connector type, position count, pitch, termination method, wire gauge, and mounting configuration. Alternative part numbers may be necessary due to inventory availability, compliance requirements, or packaging specifications.

Substiute Parts

640429-9

TE Connectivity AMP ConnectorsIn Stock: 873640429-9 Datasheet

Current PartRFQ

3-640429-9

TE Connectivity AMP ConnectorsIn Stock: 12103-640429-9 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 640429-9 is determined by strict equivalence across the following parameters:

• Connector Type & Contact Configuration: Receptacle with female socket contacts
• Position Count & Pitch: 9 positions at 0.156" (3.96mm) pitch
• Termination Method: IDC termination for discrete or ribbon cable
• Wire Gauge Compatibility: 24 AWG
• Mounting & Fastening: Free-hanging in-line configuration with locking ramp fastening
• Series Classification: MTA-156 series designation
• Contact Finish Thickness: 80.0µin (2.03µm)

The identified substitute part maintains all electrical and mechanical parameters required for direct functional equivalence. Variations in contact finish material (tin versus tin-lead), packaging format, and regulatory compliance status do not affect connector interchangeability in applications where the base electrical and mechanical specifications are met.

Parameter Comparison

Engineering Selection Recommendations

Both the 640429-9 and 3-640429-9 are active production parts from TE Connectivity with identical electrical and mechanical specifications. Selection between these parts is determined by regulatory and compliance requirements specific to the application.

640429-9 (Tin-Lead Contact Finish): This part is RoHS non-compliant and contains lead in the contact finish. Selection is appropriate for applications where RoHS compliance is not mandated or where legacy system compatibility requires tin-lead contact materials.

3-640429-9 (Tin Contact Finish): This part is ROHS3 compliant and uses pure tin contact finish without lead content. Selection is required for applications subject to RoHS directives, EU regulations, or customer specifications mandating lead-free components. This part also offers higher current inventory availability at 1183 units.

Both parts maintain identical contact finish thickness (80.0µin), moisture sensitivity classification (MSL 1), and export control classification (EAR99). The choice between these substitutes is driven by regulatory compliance requirements rather than electrical or mechanical performance differences.

Frequently Asked Questions (FAQ)

Q: Can 3-640429-9 be used as a direct replacement for 640429-9 in all applications?

A: The 3-640429-9 is electrically and mechanically equivalent to 640429-9 across all connector parameters including pitch, position count, termination method, and wire gauge. Substitution is valid when RoHS compliance is acceptable or required. Applications with explicit tin-lead material specifications or legacy system requirements may restrict this substitution.

Q: What is the difference between the contact finish materials?

A: The 640429-9 features tin-lead contact finish, while the 3-640429-9 uses pure tin contact finish. Both maintain identical finish thickness of 80.0µin (2.03µm). The tin-lead variant is RoHS non-compliant; the tin variant is ROHS3 compliant. Contact finish material does not affect connector mating or electrical performance in standard applications.

Q: Are the packaging formats interchangeable?

A: The 640429-9 packaging is not specified in available documentation. The 3-640429-9 is supplied in bulk packaging. Packaging format does not affect connector functionality or interchangeability in circuit applications. Packaging selection is determined by procurement and inventory management requirements.

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

A: Both parts are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. These connectors do not require special moisture control during storage, handling, or assembly.

Q: Are both parts currently available?

A: Both parts are active production items. The 640429-9 has 812 units in stock, and the 3-640429-9 has 1183 units in stock. Inventory levels are subject to change based on current demand and supply conditions.

Q: What applications are these connectors designed for?

A: These 9-position MTA-156 series receptacle connectors are designed for IDC termination with 24 AWG discrete or ribbon cable in free-hanging, in-line configurations. The locking ramp fastening provides secure mating. Applications include ribbon cable interconnects, data transmission, and signal distribution in electronic equipment.

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

A: Yes. Both the 640429-9 and 3-640429-9 support discrete or ribbon cable termination via IDC method. Wire gauge is fixed at 24 AWG for both connector variants.