TE Connectivity 640432-9 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640432-9 is a 9-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 1125 pieces available in new original inventory.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across connector specifications. Alternative models may be required due to inventory availability, packaging preferences, or compliance requirements.

Substiute Parts

640432-9

TE Connectivity AMP ConnectorsIn Stock: 1221640432-9 Datasheet

Current PartRFQ

3-640432-9

TE Connectivity AMP ConnectorsIn Stock: 18973-640432-9 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between the TE Connectivity 640432-9 and equivalent parts is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Connector type (Receptacle)
• Contact type (Female Socket)
• Number of positions (9)
• Pitch spacing (0.156" / 3.96mm)
• Cable termination method (IDC)
• Wire gauge compatibility (20 AWG)
• Wire type support (Discrete or Ribbon Cable)

Mechanical Compatibility Parameters:

• Number of rows (1)
• Mounting type (Free Hanging In-Line)
• Closed-end feature
• Contact finish thickness (80.0µin / 2.03µm)
• Color (Yellow)
• Series designation (MTA-156)

Environmental Parameters:

• Moisture Sensitivity Level (MSL 1 - Unlimited)

The substitute part 3-640432-9 maintains full equivalence across all electrical and mechanical parameters. The primary distinction is the contact finish specification (Tin versus Tin-Lead) and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

640432-9 Selection Criteria: The 640432-9 is appropriate for applications where tin-lead contact finish is specified or required. This part is RoHS non-compliant and suitable for legacy systems or applications without RoHS restrictions. Current inventory of 1125 pieces supports standard procurement volumes.

3-640432-9 Selection Criteria: The 3-640432-9 is the preferred substitute for new designs and applications requiring ROHS3 compliance. The tin contact finish meets modern environmental standards while maintaining identical electrical and mechanical performance. Higher inventory availability (1882 pieces) supports larger production runs. Bulk packaging accommodates high-volume assembly operations.

Compliance Considerations: Selection between these parts should be based on system-level RoHS compliance requirements. Both parts maintain identical connector functionality, pitch, position count, and IDC termination characteristics. The contact finish difference (tin-lead versus tin) does not affect electrical performance or mechanical compatibility within the MTA-156 series specification.

Frequently Asked Questions (FAQ)

Q: Are 640432-9 and 3-640432-9 electrically interchangeable?

A: Yes. Both connectors maintain identical electrical specifications including 9-position configuration, 0.156" pitch, female socket contacts, and IDC termination for 20 AWG cable. Contact finish composition does not affect electrical performance.

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

A: Contact finish composition affects compliance certifications and environmental restrictions. Tin-lead finish (640432-9) is RoHS non-compliant. Tin finish (3-640432-9) is ROHS3 compliant. Both finishes provide equivalent electrical conductivity and contact reliability at 80.0µin thickness.

Q: Can I use 3-640432-9 as a direct replacement for 640432-9 in existing assemblies?

A: Yes. The 3-640432-9 is mechanically and electrically equivalent. Substitution is valid for both new production and field replacement applications. No design modifications are required.

Q: What does the packaging difference (Standard vs. Bulk) mean?

A: Packaging designation indicates the quantity and presentation format for procurement. Bulk packaging (3-640432-9) typically accommodates higher-volume orders and automated assembly processes. Standard packaging (640432-9) supports standard procurement quantities.

Q: Are both parts suitable for ribbon cable and discrete wire termination?

A: Yes. Both 640432-9 and 3-640432-9 support IDC termination for discrete or ribbon cable at 20 AWG wire gauge. Closed-end feature and mounting type are identical across both parts.

Q: Which part should I specify for new product designs?

A: Specify 3-640432-9 for new designs. ROHS3 compliance aligns with current environmental regulations and industry standards. Electrical and mechanical performance is identical to 640432-9.

Q: Is the MSL rating the same for both parts?

A: Yes. Both connectors carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage, handling, or assembly processes.