TE Connectivity 1-640427-0 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-640427-0 is a 10 Position Rectangular Receptacle Connector with Insulation Displacement Contact (IDC) termination, designed for 20 AWG discrete or ribbon cable applications. This connector features a 0.156" (3.96mm) pitch, tin-lead contact finish, and yellow housing with closed-end design and locking ramp fastening.

The 1-640427-0 carries an obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production and field service requirements for systems utilizing this connector configuration.

Substiute Parts

1-640427-0

TE Connectivity AMP ConnectorsIn Stock: 9081-640427-0 Datasheet

Current PartRFQ

4-640427-0

TE Connectivity AMP ConnectorsIn Stock: 19784-640427-0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1-640427-0 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector Type: Receptacle
• Number of Positions: 10
• Pitch: 0.156" (3.96mm)
• Cable Termination: IDC
• Wire Gauge: 20 AWG
• Mounting Type: Free Hanging (In-Line)
• Series: MTA-156
• Number of Rows: 1
• Fastening Type: Locking Ramp

Allowable Variations:

• Contact Finish: Tin-Lead or Tin (both acceptable for this application category)
• Product Status: Active status preferred over obsolete for ongoing supply

The substitute part 4-640427-0 maintains complete electrical and mechanical compatibility with the original 1-640427-0 through identical configuration across all mandatory parameters. The primary distinction is the contact finish specification (Tin versus Tin-Lead) and active product status with RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

The 4-640427-0 serves as the direct substitute for the obsolete 1-640427-0 based on the following engineering criteria:

Product Status Consideration: The 1-640427-0 is classified as obsolete, creating supply chain risk for new production and field replacements. The 4-640427-0 maintains active product status with confirmed inventory availability (1964 pieces in stock versus 816 pieces for the obsolete variant).

Regulatory Compliance: The 4-640427-0 achieves RoHS3 compliance, whereas the 1-640427-0 is RoHS non-compliant. For applications subject to RoHS directives or customer requirements mandating RoHS compliance, the 4-640427-0 is the appropriate selection.

Contact Finish Specification: The primary technical distinction is the contact finish material. The 1-640427-0 specifies tin-lead plating, while the 4-640427-0 specifies tin plating. Both finishes maintain identical contact finish thickness (80.0µin / 2.03µm) and are functionally equivalent for IDC receptacle applications in the MTA-156 series. The tin finish in the 4-640427-0 reflects modern manufacturing standards and environmental compliance requirements.

Electrical and Mechanical Compatibility: All critical parameters determining connector interchangeability are identical between the two parts: 10-position configuration, 0.156" pitch, IDC termination for 20 AWG cable, free-hanging mounting, and locking ramp fastening. Physical and electrical performance characteristics are equivalent.

Frequently Asked Questions (FAQ)

Q: Can the 4-640427-0 be used as a direct replacement for the 1-640427-0 in existing designs?

A: Yes. The 4-640427-0 is electrically and mechanically equivalent to the 1-640427-0. Both connectors feature identical 10-position, 0.156" pitch IDC receptacle configuration with 20 AWG wire gauge specification. The connector will interface with the same mating plugs and cable assemblies without modification.

Q: What is the difference between the tin-lead finish on the 1-640427-0 and the tin finish on the 4-640427-0?

A: Both finishes provide equivalent contact performance and durability for IDC applications. The contact finish thickness is identical at 80.0µin (2.03µm). The tin finish on the 4-640427-0 reflects current manufacturing standards and environmental compliance requirements, while the tin-lead finish on the 1-640427-0 represents legacy specifications.

Q: Why is the 1-640427-0 listed as obsolete?

A: The 1-640427-0 carries an obsolete product status, indicating that TE Connectivity has discontinued active production and support for this specific part number. The 4-640427-0 represents the current active equivalent in the MTA-156 series.

Q: Are there any packaging differences between these parts?

A: The 1-640427-0 packaging specification is not defined in the available data. The 4-640427-0 is supplied in bulk packaging. For specific packaging requirements, consult the applicable datasheet or contact the manufacturer directly.

Q: Does the RoHS compliance difference affect connector performance?

A: RoHS compliance status reflects manufacturing process and material composition standards rather than electrical or mechanical performance. The 4-640427-0 RoHS3 compliance makes it suitable for applications and markets with RoHS regulatory requirements. Both parts deliver equivalent functional performance in IDC termination applications.

Q: Can these connectors be used with both discrete and ribbon cable?

A: Yes. Both the 1-640427-0 and 4-640427-0 support IDC termination for discrete or ribbon cable at 20 AWG wire gauge. The IDC termination method accommodates both cable types without modification.

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

A: Both connectors carry Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life and no special moisture control requirements during storage or handling.