TE Connectivity 1-640427-7 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-640427-7 is a 17-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 obsolete. Due to its obsolete product status and RoHS non-compliance, identifying equivalent substitute parts is necessary for ongoing design support, maintenance, and new procurement activities. The primary substitute maintains identical electrical and mechanical specifications while offering active product status and RoHS3 compliance.

Substiute Parts

1-640427-7

TE Connectivity AMP ConnectorsIn Stock: 8331-640427-7 Datasheet

Current PartRFQ

4-640427-7

TE Connectivity AMP ConnectorsIn Stock: 10584-640427-7 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1-640427-7 is determined by strict equivalence across all electrical and mechanical parameters. The substitute part 4-640427-7 maintains identical specifications in the following critical areas:

• Connector type, position count, and pitch (0.156")
• Contact configuration (17-position female socket receptacle)
• Cable termination method (IDC) and wire gauge (20 AWG)
• Mounting and fastening characteristics (free hanging, locking ramp)
• Physical features (closed end, yellow color)
• Contact finish thickness (80.0µin)
• Moisture sensitivity rating (MSL 1)

The primary distinction between these parts is the contact finish material (tin-lead versus tin) and product status (obsolete versus active). Both parts share the same base product number (640427) and series designation (MTA-156), confirming their functional equivalence within the MTA-156 connector family.

Parameter Comparison

Engineering Selection Recommendations

The 4-640427-7 serves as the direct substitute for the obsolete 1-640427-7. Selection of the substitute part is supported by the following engineering considerations:

Product Status: The 1-640427-7 is classified as obsolete, limiting long-term availability and support. The 4-640427-7 maintains active product status, ensuring continued supply and technical support from TE Connectivity.

Regulatory Compliance: The 1-640427-7 is RoHS non-compliant, which may restrict its use in applications subject to RoHS3 regulations. The 4-640427-7 is ROHS3 compliant, meeting current environmental and regulatory requirements for electronic components in the European Union and equivalent jurisdictions.

Functional Equivalence: Both parts maintain identical electrical and mechanical specifications across all critical parameters, including connector type, position count, pitch, contact configuration, termination method, and wire gauge. This equivalence ensures direct interchangeability in existing designs and applications.

Contact Finish Consideration: The substitute part features tin contact finish in place of the tin-lead finish of the main part. Both finishes meet the specified contact finish thickness of 80.0µin (2.03µm) and are suitable for IDC termination applications with 20 AWG cable.

Frequently Asked Questions (FAQ)

Q: Can the 4-640427-7 be used as a direct replacement for the 1-640427-7 in existing applications?

A: Yes. The 4-640427-7 maintains identical electrical and mechanical specifications across all critical parameters, including connector type, position count, pitch, contact configuration, termination method, and wire gauge. Direct interchangeability is supported by functional equivalence.

Q: What is the primary reason for substituting the 1-640427-7?

A: The 1-640427-7 is classified as obsolete, which limits availability and long-term support. The 4-640427-7 is an active product offering continued supply and technical support.

Q: Are there compliance differences between these parts?

A: Yes. The 1-640427-7 is RoHS non-compliant, while the 4-640427-7 is ROHS3 compliant. Applications subject to RoHS3 regulations require the use of the 4-640427-7.

Q: What is the difference in contact finish between these parts?

A: The 1-640427-7 features tin-lead contact finish, while the 4-640427-7 features tin contact finish. Both finishes meet the specified contact finish thickness of 80.0µin (2.03µm).

Q: Are the connector dimensions and pitch identical?

A: Yes. Both parts share the same pitch of 0.156" (3.96mm), number of positions (17), and mounting configuration (free hanging, in-line). Physical interchangeability is confirmed.

Q: What wire gauges are supported by these connectors?

A: Both connectors support 20 AWG wire and are compatible with discrete or ribbon cable termination via IDC (Insulation Displacement Contact) method.

Q: Is the packaging different between these parts?

A: The 4-640427-7 is supplied in bulk packaging. The packaging specification for the 1-640427-7 is not provided in the available documentation.

Q: Do both parts have the same moisture sensitivity rating?

A: Yes. Both parts are rated at Moisture Sensitivity Level (MSL) 1, indicating unlimited moisture sensitivity tolerance.