TE Connectivity 640429-4 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640429-4 is a 4-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 877 pieces available in new original inventory.

Substitute parts are identified to address specific application requirements including RoHS compliance status, packaging preferences, and contact finish specifications while maintaining full electrical and mechanical compatibility.

Substiute Parts

640429-4

TE Connectivity AMP ConnectorsIn Stock: 974640429-4 Datasheet

Current PartRFQ

3-640429-4

TE Connectivity AMP ConnectorsIn Stock: 163813-640429-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between the main part 640429-4 and its equivalent 3-640429-4 is based on strict electrical and mechanical parameter matching within the MTA-156 rectangular connector series. Both parts maintain identical specifications across all critical parameters:

Critical Matching Parameters:

• 4-position receptacle configuration
• 0.156" (3.96mm) pitch spacing
• Female socket contact type
• IDC cable termination for 24 AWG wire
• Free-hanging in-line mounting with locking ramp fastening
• Closed-end design
• 80.0µin (2.03µm) contact finish thickness

Differentiating Parameters:

• Contact finish composition: Tin-Lead (640429-4) versus Tin (3-640429-4)
• RoHS compliance status: Non-compliant (640429-4) versus Compliant (3-640429-4)
• Packaging format: Standard versus Bulk
• Inventory availability: 877 pieces versus 16,277 pieces

The substitute relationship is valid because both parts are functionally interchangeable in applications where the contact finish material and regulatory compliance status are compatible with system requirements.

Parameter Comparison

Engineering Selection Recommendations

Selection Criteria Based on Regulatory and Compliance Status:

Choose 640429-4 (Tin-Lead Contact Finish) when:

• Application operates in non-RoHS regulated markets or exempted product categories
• Legacy system compatibility requires tin-lead contact finish specifications
• Existing inventory or supply chain constraints necessitate this variant
• Product status: Active with 877 pieces in stock

Choose 3-640429-4 (Tin Contact Finish) when:

• Application requires RoHS compliance for EU market distribution or regulated industries
• New designs mandate lead-free contact materials per environmental standards
• Higher inventory availability (16,277 pieces) supports production volume requirements
• Product status: Active with bulk packaging availability

Both parts maintain identical electrical performance, mechanical compatibility, and physical dimensions. The selection between them is determined by regulatory compliance requirements and contact finish material specifications applicable to the end application.

Frequently Asked Questions (FAQ)

Q: Are 640429-4 and 3-640429-4 electrically interchangeable?

A: Yes. Both connectors are electrically identical 4-position receptacles with identical contact configuration, pitch spacing, and IDC termination specifications for 24 AWG cable. The electrical performance and signal integrity characteristics are equivalent.

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

A: The 640429-4 features tin-lead contact finish, while the 3-640429-4 features tin contact finish. Both maintain the same 80.0µin (2.03µm) thickness. The primary difference is the lead content, which affects RoHS compliance status and environmental regulations applicable to the end product.

Q: Can I use 3-640429-4 as a direct replacement for 640429-4 in existing designs?

A: Direct replacement is possible from a mechanical and electrical standpoint. However, design validation is required if the original specification explicitly requires tin-lead contact finish or if RoHS compliance status affects product certification or market distribution.

Q: What does RoHS compliance mean for connector selection?

A: RoHS (Restriction of Hazardous Substances) compliance restricts the use of lead and other hazardous materials. The 3-640429-4 is RoHS compliant (tin finish), while the 640429-4 is non-compliant (tin-lead finish). Selection depends on regulatory requirements for the target market and product category.

Q: How does packaging affect part selection?

A: The 640429-4 is supplied in standard packaging with 877 pieces available. The 3-640429-4 is supplied in bulk packaging with 16,277 pieces available. Packaging selection depends on procurement volume requirements and inventory management practices.

Q: Are both parts currently in production?

A: Yes. Both 640429-4 and 3-640429-4 maintain active product status with TE Connectivity AMP Connectors, ensuring continued availability and supply chain reliability.

Q: What is the significance of the MTA-156 series designation?

A: MTA-156 identifies the connector series standard, which defines the 0.156" (3.96mm) pitch spacing and mechanical interface specifications. Both parts belong to this series and are fully compatible with MTA-156 mating connectors and cable assemblies.

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

A: Yes. Both 640429-4 and 3-640429-4 support IDC termination for discrete or ribbon cable configurations at 24 AWG wire gauge, providing flexibility in cable assembly design.