TE Connectivity 640434-4 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640434-4 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 and is classified as a free-hanging, in-line mounted component with closed-end design. The part is currently active in production with 686 pieces available in new original inventory.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across connector specifications. Alternative part numbers may be required due to inventory availability, packaging format changes, or compliance requirement updates.

Substiute Parts

640434-4

TE Connectivity AMP ConnectorsIn Stock: 744640434-4 Datasheet

Current PartRFQ

3-640434-4

TE Connectivity AMP ConnectorsIn Stock: 9553-640434-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 640434-4 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Connector type (Receptacle)
• Number of positions (4)
• Contact type (Female Socket)
• Pitch specification (0.156" / 3.96mm)
• Cable termination method (IDC)
• Wire gauge rating (24 AWG)
• Wire type compatibility (Discrete or Ribbon Cable)

Mechanical Compatibility Parameters:

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

Environmental Parameters:

• Moisture Sensitivity Level (1 - Unlimited)

The substitute part 3-640434-4 maintains full equivalence across all electrical and mechanical parameters. Differences in contact finish material (tin versus tin-lead) and RoHS compliance status do not affect functional interchangeability within the specified electrical and mechanical constraints.

Parameter Comparison

Engineering Selection Recommendations

640434-4 Selection Criteria: The 640434-4 is appropriate for applications where tin-lead contact finish is specified or required. This part maintains RoHS non-compliant status and is suitable for legacy systems or applications where RoHS compliance is not mandated. Current inventory of 686 pieces supports immediate availability for production requirements.

3-640434-4 Selection Criteria: The 3-640434-4 substitute part is appropriate for applications requiring ROHS3 compliance. The tin contact finish provides equivalent electrical performance to the tin-lead variant while meeting modern regulatory requirements. Higher inventory availability (909 pieces) supports sustained production schedules. Bulk packaging format accommodates high-volume assembly operations.

Compliance Considerations: Selection between these parts should be based on the regulatory environment of the end application. Applications subject to RoHS directives or customer specifications requiring RoHS compliance must use the 3-640434-4 variant. Applications without RoHS requirements may use either part based on inventory and packaging preferences.

Both parts share identical electrical and mechanical specifications, ensuring functional interchangeability within the MTA-156 series connector ecosystem.

Frequently Asked Questions (FAQ)

Q: Are the 640434-4 and 3-640434-4 electrically interchangeable?

A: Yes. Both parts maintain identical electrical specifications including connector type, position count, pitch, contact type, IDC termination method, and 24 AWG wire gauge rating. The contact finish material difference (tin-lead versus tin) does not affect electrical performance within the specified parameters.

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

A: Both contact finishes provide equivalent electrical conductivity and contact resistance performance at the specified 80.0µin (2.03µm) thickness. The primary distinction is regulatory compliance status. Tin-lead finish (640434-4) is RoHS non-compliant, while tin finish (3-640434-4) is ROHS3 compliant.

Q: Can I use the 3-640434-4 in place of the 640434-4 in existing designs?

A: Yes, provided the application does not explicitly require tin-lead contact finish. The 3-640434-4 maintains full mechanical and electrical compatibility with all MTA-156 series mating components and cable termination specifications.

Q: What is the significance of the packaging difference between these parts?

A: The 640434-4 uses standard packaging, while the 3-640434-4 uses bulk packaging. Bulk packaging is optimized for high-volume automated assembly operations. Selection depends on production volume and assembly line requirements rather than functional performance.

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

A: Yes. Both the 640434-4 and 3-640434-4 support IDC termination for discrete or ribbon cable at 24 AWG wire gauge. The closed-end design and free-hanging mounting type are identical across both parts.

Q: What does Moisture Sensitivity Level 1 (Unlimited) mean for these connectors?

A: MSL 1 indicates unlimited floor life. These connectors do not require special moisture control during storage, handling, or assembly. No baking or desiccant storage procedures are necessary prior to soldering or assembly operations.

Q: Which part should I specify for new designs?

A: For new designs, specify the 3-640434-4 unless legacy system compatibility or specific tin-lead requirements exist. The ROHS3 compliance status aligns with current regulatory standards and provides access to higher inventory levels.