TE Connectivity 1-640426-4 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-640426-4 is a 14-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 18 AWG discrete wire. This connector features a tin contact finish, closed-end design, and free-hanging in-line mounting configuration with locking ramp fastening.

The 1-640426-4 carries an obsolete product status. Locating equivalent and substitute parts is necessary to support legacy system maintenance, repair, and component replacement in applications where this connector remains in service.

Substiute Parts

1-640426-4

TE Connectivity AMP ConnectorsIn Stock: 8671-640426-4 Datasheet

Current PartRFQ

4-640426-4

TE Connectivity AMP ConnectorsIn Stock: 15694-640426-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1-640426-4 is determined by strict equivalence across the following parameters:

• Connector Type and Series: Must be rectangular receptacle connector from MTA-156 series
• Position Count: Must be 14-position configuration
• Pitch Specification: Must maintain 0.156" (3.96mm) pitch
• Contact Configuration: Must be female socket contacts
• Termination Method: Must support IDC cable termination
• Wire Gauge Compatibility: Must accommodate 18 AWG discrete wire
• Contact Finish: Must be tin-plated
• Mounting and Fastening: Must be free-hanging in-line with locking ramp fastening

The substitute part 4-640426-4 meets all these criteria and is therefore a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The 4-640426-4 is a direct functional substitute for the 1-640426-4. Both parts share identical electrical and mechanical specifications, including connector type, position count, pitch, contact configuration, termination method, wire gauge, and contact finish.

The primary distinction between these parts is product status and regulatory compliance:

• 1-640426-4: Obsolete product status; RoHS non-compliant
• 4-640426-4: Active product status; ROHS3 compliant

For new designs or applications requiring regulatory compliance with RoHS3 standards, the 4-640426-4 is the appropriate selection. For legacy system maintenance where the original part specification must be maintained, the 1-640426-4 remains functionally equivalent, though its obsolete status may affect long-term availability.

Both parts carry identical moisture sensitivity level (MSL 1) and export classification (EAR99), indicating equivalent handling and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the 4-640426-4 be used as a direct replacement for the 1-640426-4 in existing applications?

A: Yes. The 4-640426-4 is electrically and mechanically identical to the 1-640426-4. All connector specifications, including position count, pitch, contact type, termination method, and wire gauge compatibility, are equivalent. The substitute part functions identically in the same circuit and mechanical assembly.

Q: What is the difference between these two part numbers?

A: The primary differences are product status and RoHS compliance. The 1-640426-4 is obsolete and RoHS non-compliant, while the 4-640426-4 is an active product that meets ROHS3 compliance standards. Both parts are manufactured by TE Connectivity and share the same base product number (640426).

Q: Are there packaging differences between these parts?

A: The 1-640426-4 packaging specification is not provided. The 4-640426-4 is supplied in bulk packaging. Confirm packaging requirements for your specific application before ordering.

Q: Does the RoHS3 compliance of the 4-640426-4 affect its electrical performance?

A: No. RoHS3 compliance relates to material composition and environmental standards, not electrical performance. The 4-640426-4 maintains identical electrical and mechanical specifications to the 1-640426-4.

Q: Are both parts suitable for 18 AWG wire termination?

A: Yes. Both the 1-640426-4 and 4-640426-4 are designed for IDC termination with 18 AWG discrete wire. Wire gauge compatibility is identical between the two parts.

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

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