TE Connectivity 1-640427-4 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-640427-4 is a 14-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 free-hanging, in-line mounted component with locking ramp fastening. The part is currently active in production with 806 units in stock.

Substitute parts are identified when equivalent connectors share identical functional parameters including connector type, number of positions, pitch, mounting configuration, cable termination method, and wire gauge specifications. Identifying suitable alternatives ensures design flexibility, supply chain continuity, and compliance with evolving regulatory requirements.

Substiute Parts

1-640427-4

TE Connectivity AMP ConnectorsIn Stock: 8901-640427-4 Datasheet

Current PartRFQ

4-640427-4

TE Connectivity AMP ConnectorsIn Stock: 10604-640427-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1-640427-4 are identified based on strict equivalence across all critical electrical and mechanical parameters. The substitution logic requires matching specifications in the following areas:

Connector Architecture: Receptacle type with 14 female socket contacts arranged in a single row at 0.156" (3.96mm) pitch.

Termination Method: IDC cable termination supporting both discrete and ribbon cable configurations at 20 AWG wire gauge.

Mechanical Configuration: Free-hanging, in-line mounting with locking ramp fastening and closed-end housing.

Series Designation: MTA-156 series classification.

Parts meeting these criteria are electrically and mechanically interchangeable within the specified application parameters. Variations in contact finish material (tin-lead versus tin) and packaging configuration do not affect functional compatibility when all other parameters remain constant.

Parameter Comparison

Engineering Selection Recommendations

1-640427-4 (Tin-Lead Contact Finish)

The 1-640427-4 is designated as RoHS non-compliant due to its tin-lead contact finish. This part remains suitable for applications where RoHS compliance is not a regulatory requirement or where legacy system compatibility necessitates tin-lead termination characteristics. Current inventory status shows 806 units available.

4-640427-4 (Tin Contact Finish)

The 4-640427-4 is ROHS3 compliant and features a tin contact finish while maintaining all other electrical and mechanical specifications identical to the main part. This substitute is appropriate for applications subject to RoHS3 regulatory requirements or where lead-free contact materials are mandated by design specifications. Current inventory status shows 994 units available.

Both parts share identical connector architecture, termination methodology, and mechanical configuration. Selection between these alternatives is determined by regulatory compliance requirements and contact finish material specifications applicable to the end application.

Frequently Asked Questions (FAQ)

Q: Are the 1-640427-4 and 4-640427-4 electrically interchangeable?

A: Yes. Both connectors are electrically interchangeable. They share identical specifications for connector type, contact configuration, number of positions, pitch, mounting method, cable termination type, and wire gauge. The difference in contact finish material (tin-lead versus tin) does not affect electrical performance within the specified application parameters.

Q: What is the primary difference between these two parts?

A: The primary difference is the contact finish material and resulting regulatory compliance status. The 1-640427-4 features tin-lead contact finish and is RoHS non-compliant. The 4-640427-4 features tin contact finish and is ROHS3 compliant. Both maintain identical contact finish thickness of 80.0µin (2.03µm).

Q: Can I use the 4-640427-4 as a direct replacement for the 1-640427-4 in existing designs?

A: The 4-640427-4 is mechanically and electrically compatible with the 1-640427-4. However, design verification is necessary to confirm that the tin contact finish meets the specific electrical and environmental requirements of the application. Contact finish material selection may affect long-term reliability characteristics in certain operating environments.

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

A: The 1-640427-4 is supplied in standard packaging, while the 4-640427-4 is supplied in bulk packaging. Packaging configuration does not affect connector functionality or performance. Selection between packaging options is determined by procurement requirements and inventory management practices.

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

A: Yes. Both the 1-640427-4 and 4-640427-4 support IDC termination with discrete or ribbon cable at 20 AWG wire gauge. The IDC termination method and wire gauge specifications are identical across both parts.

Q: What is the moisture sensitivity level for these connectors?

A: Both connectors are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. These parts do not require special moisture control handling during storage, transportation, or assembly.

Q: Which part should I select for new designs?

A: For new designs, the 4-640427-4 is the appropriate selection due to its ROHS3 compliance status. This ensures alignment with current regulatory requirements and industry standards. The 1-640427-4 remains suitable for legacy system maintenance and applications where RoHS compliance is not applicable.