TE Connectivity 640432-7 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640432-7 is a 7-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 20 AWG discrete or ribbon cable. This connector features tin-lead contact finish and is classified as a closed-end receptacle with female socket contacts. The part is currently active in production with 729 units in stock.

Identifying equivalent and substitute parts is necessary when the primary part number becomes unavailable, when alternative packaging configurations are required, or when compliance requirements differ between application specifications and current inventory status.

Substiute Parts

640432-7

TE Connectivity AMP ConnectorsIn Stock: 805640432-7 Datasheet

Current PartRFQ

3-640432-7

TE Connectivity AMP ConnectorsIn Stock: 8973-640432-7 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 3-640432-7 is functionally equivalent to the main part 640432-7 based on the following critical parameters:

Matching Parameters:

• Connector Type: Receptacle
• Number of Positions: 7
• Pitch: 0.156" (3.96mm)
• Number of Rows: 1
• Cable Termination: IDC
• Wire Type: Discrete or Ribbon Cable
• Wire Gauge: 20 AWG
• Features: Closed End
• Contact Finish Thickness: 80.0µin (2.03µm)
• Color: Yellow
• Series: MTA-156
• Mounting Type: Free Hanging (In-Line)
• Moisture Sensitivity Level: 1 (Unlimited)

Differentiating Parameters:

• Contact Finish: 640432-7 uses Tin-Lead; 3-640432-7 uses Tin
• Packaging: 640432-7 is standard packaging; 3-640432-7 is bulk packaging
• RoHS Status: 640432-7 is RoHS non-compliant; 3-640432-7 is ROHS3 compliant
• HTSUS Code: Different tariff classifications reflect finish composition differences

The substitution is valid because the core electrical and mechanical specifications remain identical. The primary distinction is the contact finish composition and regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

Selection Criteria Based on Compliance Requirements:

The choice between 640432-7 and 3-640432-7 is determined by regulatory and environmental compliance mandates applicable to the end application.

640432-7 (Tin-Lead Contact Finish, RoHS Non-Compliant):

• Suitable for applications where RoHS compliance is not required
• Appropriate for legacy systems or non-regulated markets
• Tin-lead finish provides established performance history in industrial applications
• Current inventory: 729 units

3-640432-7 (Tin Contact Finish, ROHS3 Compliant):

• Required for applications subject to RoHS3 regulations
• Mandatory for European Union market distribution
• Tin finish eliminates lead content while maintaining electrical performance
• Current inventory: 799 units
• Bulk packaging configuration available

Both parts maintain identical electrical and mechanical specifications, including pitch, position count, wire gauge compatibility, and IDC termination method. The contact finish thickness remains constant at 80.0µin (2.03µm) across both variants, ensuring equivalent performance in signal integrity and current-carrying capacity.

Frequently Asked Questions (FAQ)

Q: Are 640432-7 and 3-640432-7 mechanically interchangeable?

A: Yes. Both connectors share identical mechanical specifications including 0.156" (3.96mm) pitch, 7-position configuration, closed-end design, and free-hanging in-line mounting type. They are directly interchangeable in terms of physical installation and mating interface.

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

A: The contact finish composition differs, but both finishes provide equivalent electrical performance and current-carrying capacity at 80.0µin (2.03µm) thickness. The primary distinction is regulatory: tin-lead is RoHS non-compliant, while tin is ROHS3 compliant. Tin eliminates lead content per environmental regulations.

Q: Which part should be selected for new designs?

A: For new designs, 3-640432-7 is the appropriate selection because it meets ROHS3 compliance requirements applicable to current manufacturing standards and market regulations. The tin contact finish provides equivalent performance while satisfying environmental mandates.

Q: Does packaging configuration affect electrical performance?

A: No. The difference between standard and bulk packaging is organizational only. Both 640432-7 and 3-640432-7 deliver identical electrical and mechanical performance regardless of packaging configuration.

Q: Are both parts suitable for IDC termination with 20 AWG cable?

A: Yes. Both connectors are specified for IDC termination with 20 AWG discrete or ribbon cable. The IDC contact design and wire gauge compatibility are identical across both part numbers.

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: Can 640432-7 be used in applications requiring RoHS compliance?

A: No. The 640432-7 is RoHS non-compliant due to its tin-lead contact finish. Applications requiring RoHS3 compliance must use 3-640432-7 with tin contact finish.