TE Connectivity 640435-3 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640435-3 is a 3-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 26 AWG discrete or ribbon cable. This connector features tin-lead contact finish and is classified as obsolete product status.

Due to its obsolete classification, locating equivalent or substitute components is necessary for ongoing system maintenance, repair, and new design implementations. Active product alternatives within the same series provide functional compatibility while offering improved availability and compliance status.

Substiute Parts

640435-3

TE Connectivity AMP ConnectorsIn Stock: 723640435-3 Datasheet

Current PartRFQ

3-640435-3

TE Connectivity AMP ConnectorsIn Stock: 10333-640435-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 640435-3 is based on strict equivalence across the following critical parameters:

• Connector Type & Position Count: Both main and substitute parts are 3-position receptacle connectors
• Pitch & Row Configuration: Identical 0.156" (3.96mm) pitch with single-row layout ensures mechanical and electrical compatibility
• Cable Termination: Both utilize IDC termination for 26 AWG discrete or ribbon cable
• Contact Configuration: Female socket contacts with identical finish thickness (80.0µin / 2.03µm)
• Series Classification: Both belong to the MTA-156 series, confirming design compatibility
• Mounting & Features: Identical free-hanging in-line mounting with closed-end design

The primary distinction between the main part and its substitute is the contact finish composition (tin-lead versus tin) and product status (obsolete versus active).

Parameter Comparison

Engineering Selection Recommendations

For Obsolete Part Replacement:

The 3-640435-3 serves as the direct active substitute for the 640435-3. This part maintains full mechanical and electrical compatibility while offering the following advantages:

• Product Availability: Active product status ensures continued supply and manufacturing support
• Regulatory Compliance: RoHS compliant status aligns with current environmental regulations and procurement standards
• Contact Finish: Tin finish eliminates lead content while maintaining identical contact thickness and electrical performance
• Inventory Status: Higher stock availability (972 pcs vs. 685 pcs) supports immediate procurement needs

For New Designs:

The 3-640435-3 is the appropriate selection for new applications requiring 3-position MTA-156 series IDC receptacle connectors with 26 AWG cable termination. The active product status and RoHS compliance ensure long-term design viability and regulatory alignment.

For Legacy System Maintenance:

The 640435-3 remains functionally equivalent to the 3-640435-3 for existing installations. Substitution is electrically and mechanically transparent due to identical connector geometry, pitch, contact configuration, and termination method.

Frequently Asked Questions (FAQ)

Q: Are the 640435-3 and 3-640435-3 mechanically interchangeable?

A: Yes. Both connectors share identical pitch (0.156"), position count (3), row configuration (1), mounting type (free hanging in-line), and closed-end design. They interface identically with mating connectors and cable assemblies.

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

A: Both finishes provide equivalent electrical conductivity and contact resistance. The tin finish in the 3-640435-3 eliminates lead content, meeting RoHS compliance requirements. Contact finish thickness is identical (80.0µin / 2.03µm) in both parts.

Q: Can the 3-640435-3 be used as a direct replacement in existing assemblies designed for the 640435-3?

A: Yes. The 3-640435-3 is electrically and mechanically compatible with all existing applications, cable assemblies, and mating connectors designed for the 640435-3. No design modifications are required.

Q: Why is the 640435-3 classified as obsolete?

A: Obsolete status indicates that TE Connectivity has discontinued active manufacturing and support for this part. The 3-640435-3 represents the current active equivalent within the MTA-156 series.

Q: What is the significance of RoHS compliance for the 3-640435-3?

A: RoHS compliance certifies that the 3-640435-3 meets environmental restrictions on hazardous substances, including lead elimination. This status is required for many industrial, commercial, and consumer applications and procurement specifications.

Q: Are there any packaging differences between these parts?

A: The 640435-3 packaging is unspecified in available documentation. The 3-640435-3 is supplied in bulk packaging. Confirm packaging requirements with procurement specifications for your application.

Q: Do both parts support the same wire gauges and termination methods?

A: Yes. Both the 640435-3 and 3-640435-3 support 26 AWG discrete or ribbon cable with IDC termination. Wire type compatibility is identical.

Q: What is the MSL rating for these connectors?

A: Both parts carry MSL rating 1 (Unlimited), indicating no moisture sensitivity restrictions for storage, handling, or use.