TE Connectivity 641437-4 MTA-156 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 641437-4 is a 4-position rectangular plug connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination on discrete or ribbon cable. This connector is classified as an active product with RoHS compliance and unlimited moisture sensitivity rating. Substitute parts are identified to provide alternative sourcing options when the primary part number is unavailable or when specific packaging or contact finish requirements necessitate component alternatives within the same functional category.

Substiute Parts

641437-4

TE Connectivity AMP ConnectorsIn Stock: 802641437-4 Datasheet

Current PartRFQ

3-641437-4

TE Connectivity AMP ConnectorsIn Stock: 16513-641437-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 641437-4 is determined by strict adherence to the following core parameters:

Critical Matching Parameters:

• Connector series (MTA-156)
• Number of positions (4)
• Pitch specification (0.156" / 3.96mm)
• Connector type (Plug)
• Contact type (Male Pin)
• Cable termination method (IDC)
• Wire type compatibility (Discrete or Ribbon Cable)
• Number of rows (1)

The substitute part 3-641437-4 maintains all critical parameters required for functional equivalence. Variations in secondary parameters such as packaging format, contact finish material, contact finish thickness, wire gauge specification, and mounting orientation do not affect the core substitution relationship when the critical parameters remain constant.

Parameter Comparison

Engineering Selection Recommendations

Both the 641437-4 and 3-641437-4 are active products from TE Connectivity AMP Connectors within the MTA-156 rectangular connector series. Selection between these parts is based on specific application requirements and compliance certifications:

641437-4 Selection Criteria:

• Primary sourcing option when generic specifications are required
• Applications where wire gauge and contact finish are not pre-specified
• Inventory availability: 749 pieces in stock
• RoHS Compliant status

3-641437-4 Selection Criteria:

• Applications requiring 22 AWG wire gauge specification
• Systems requiring tin contact finish with 80.0µin thickness specification
• Right-angle mounting orientation requirements
• ROHS3 Compliant status for enhanced regulatory alignment
• Higher inventory availability: 1589 pieces in stock
• Bulk packaging format for high-volume applications

Both parts maintain identical electrical and mechanical compatibility within the MTA-156 series, with MSL rating of 1 (Unlimited) and EAR99 export classification. The substitute relationship is valid for direct replacement in applications where the specified parameters of the substitute part align with system requirements.

Frequently Asked Questions (FAQ)

Q: Can 3-641437-4 be used as a direct replacement for 641437-4?

A: Yes. Both connectors share identical core specifications: MTA-156 series, 4-position plug configuration, 0.156" pitch, male pin contacts, IDC termination, and single-row layout. The substitute part includes additional specifications (22 AWG wire gauge, tin contact finish, red color) that do not prevent functional equivalence.

Q: What is the difference in mounting orientation between these parts?

A: The 641437-4 is specified for free hanging in-line mounting. The 3-641437-4 supports both free hanging in-line and right-angle mounting orientations, providing greater application flexibility.

Q: Are there compliance differences between these parts?

A: The 641437-4 carries RoHS Compliant certification. The 3-641437-4 carries ROHS3 Compliant certification, representing an enhanced compliance standard. Both parts are EAR99 classified and share identical HTSUS coding (8536.69.8000).

Q: Does wire gauge specification affect substitution eligibility?

A: The 641437-4 does not specify wire gauge, while 3-641437-4 specifies 22 AWG. This difference does not prevent substitution; however, the 22 AWG specification of the substitute part must be compatible with the application's wire gauge requirements.

Q: What is the significance of the contact finish specification?

A: The 641437-4 does not specify contact finish material or thickness. The 3-641437-4 specifies tin contact finish with 80.0µin (2.03µm) thickness. This specification must be verified as compatible with the application's electrical and environmental requirements.

Q: How does packaging format affect part selection?

A: The 641437-4 packaging is not specified. The 3-641437-4 is supplied in bulk packaging. Packaging format affects order quantities and handling procedures but does not impact electrical or mechanical compatibility.

Q: Are both parts available in the same inventory quantities?

A: No. The 641437-4 has 749 pieces in stock, while 3-641437-4 has 1589 pieces in stock. Higher availability of the substitute part may influence sourcing decisions for high-volume applications.

Q: What is the moisture sensitivity rating for both parts?

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