TE Connectivity 1-640426-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-640426-1 is an 11 Position Rectangular Receptacle Connector designed for IDC (Insulation Displacement Contact) termination with 18 AWG discrete wire. This connector operates within the MTA-156 series and features a 0.156" (3.96mm) pitch configuration with tin contact finish and orange housing. The part is classified as obsolete, necessitating identification of active equivalent components to maintain supply chain continuity and ensure long-term design support.

Substiute Parts

1-640426-1

TE Connectivity AMP ConnectorsIn Stock: 8271-640426-1 Datasheet

Current PartRFQ

4-640426-1

TE Connectivity AMP ConnectorsIn Stock: 21734-640426-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1-640426-1 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications for connector type, contact configuration, position count, pitch, mounting method, termination technology, wire gauge compatibility, and contact finish. The TE Connectivity 4-640426-1 satisfies all substitution criteria as a direct functional equivalent within the MTA-156 series. The primary distinction between these parts is product status and packaging configuration, with the 4-640426-1 classified as active and supplied in bulk packaging, whereas the 1-640426-1 is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 4-640426-1 is the direct substitute for the obsolete 1-640426-1. Both components share identical electrical and mechanical specifications within the MTA-156 series, ensuring full functional compatibility in applications requiring 11-position IDC receptacle connectors with 18 AWG wire termination.

The 4-640426-1 offers the advantage of active product status, ensuring continued availability and manufacturer support. Additionally, the 4-640426-1 achieves ROHS3 compliance, whereas the 1-640426-1 is RoHS non-compliant. For new designs or redesigns of existing applications, the 4-640426-1 is the appropriate selection. For legacy system maintenance where the original 1-640426-1 is no longer available, the 4-640426-1 provides electrical and mechanical equivalence without design modification.

Frequently Asked Questions (FAQ)

Q: Are the 1-640426-1 and 4-640426-1 electrically identical?

A: Yes. Both components are 11-position receptacle connectors with identical pitch (0.156"), contact type (female socket), termination method (IDC), wire gauge (18 AWG), contact finish (tin), and fastening mechanism (locking ramp). They operate within the same MTA-156 series and are electrically interchangeable.

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

A: The 1-640426-1 is classified as obsolete, while the 4-640426-1 is active. The 4-640426-1 is supplied in bulk packaging and meets ROHS3 compliance standards, whereas the 1-640426-1 is RoHS non-compliant. All functional specifications remain identical.

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

A: Yes. The 4-640426-1 is a direct functional equivalent with no design modifications required. Mechanical fit, electrical performance, and connector interface specifications are identical.

Q: Does the packaging difference between these parts affect compatibility?

A: No. Packaging configuration (bulk versus other formats) does not affect the connector's electrical or mechanical performance. The packaging difference reflects supply chain and inventory management practices only.

Q: Are there any compliance considerations when substituting the 1-640426-1 with the 4-640426-1?

A: The 4-640426-1 provides improved compliance status with ROHS3 certification. If your application or regulatory requirements mandate RoHS compliance, the 4-640426-1 is the appropriate selection. Both parts share identical ECCN (EAR99) and HTSUS (8536.69.8000) classifications.

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

A: Both the 1-640426-1 and 4-640426-1 have a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without moisture control requirements.