TE Connectivity 640440-4 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640440-4 is a 4-position rectangular receptacle connector from the MTA-100 series, designed for IDC (Insulation Displacement Contact) termination with 22 AWG discrete or ribbon cable. This connector features tin-lead contact finish, a closed-end design, and right-angle mounting configuration with locking ramp fastening.

The 640440-4 is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing maintenance, repair, and production requirements for legacy systems utilizing this connector type. Active production alternatives within the same series provide functional compatibility while offering improved compliance status.

Substiute Parts

640440-4

TE Connectivity AMP ConnectorsIn Stock: 975640440-4 Datasheet

Current PartRFQ

3-640440-4

TE Connectivity AMP ConnectorsIn Stock: 21443-640440-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 640440-4 is determined by strict alignment with the following critical parameters:

Critical Matching Parameters:

• Connector type (Receptacle)
• Number of positions (4)
• Pitch specification (0.100" / 2.54mm)
• Contact type (Female Socket)
• Cable termination method (IDC)
• Wire gauge compatibility (22 AWG)
• Mounting configuration (Free Hanging In-Line, Right Angle)
• Fastening mechanism (Locking Ramp)
• Row configuration (1 row)
• Closed-end design

Important Matching Parameters:

• Contact finish material (Tin-Lead or Tin)
• Contact finish thickness (80.0µin / 2.03µm)

Reference Parameters:

• Color designation (Red)
• Series classification (MTA-100)

The substitute part 3-640440-4 maintains identical electrical and mechanical specifications across all critical parameters, ensuring direct functional compatibility. The primary distinction is the contact finish composition (Tin versus Tin-Lead) and regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

For New Designs and Active Production:

The 3-640440-4 substitute part is the appropriate selection for new applications and ongoing production. This part maintains active product status with TE Connectivity, ensuring continued availability and technical support. The part is ROHS3 compliant, meeting current regulatory requirements for electronic components in most jurisdictions.

For Legacy System Maintenance:

The 640440-4 original part remains functionally equivalent for repair and maintenance of existing systems where tin-lead contact finish is specified or required. However, the obsolete status indicates limited future availability. The 3-640440-4 substitute provides identical electrical and mechanical performance with improved compliance posture.

Contact Finish Consideration:

The primary technical distinction between the two parts is the contact finish material. The 640440-4 uses tin-lead finish, while the 3-640440-4 uses tin finish. Both maintain the same 80.0µin (2.03µm) thickness specification. The tin finish of the substitute part aligns with modern RoHS3 compliance requirements and does not compromise electrical performance or contact reliability for this connector class.

Compliance and Regulatory Status:

The 3-640440-4 is ROHS3 compliant and suitable for applications subject to RoHS directives. The 640440-4 is RoHS non-compliant and subject to REACH regulations. Selection should account for end-use regulatory requirements and supply chain compliance obligations.

Frequently Asked Questions (FAQ)

Q: Can the 3-640440-4 directly replace the 640440-4 in existing assemblies?

A: Yes. The 3-640440-4 is a direct functional substitute. All critical electrical and mechanical parameters are identical, including connector type, position count, pitch, contact type, termination method, wire gauge, mounting configuration, and fastening mechanism. The parts are mechanically and electrically interchangeable.

Q: What is the difference between the tin-lead finish on the 640440-4 and the tin finish on the 3-640440-4?

A: The 640440-4 features tin-lead contact finish, while the 3-640440-4 features tin finish. Both maintain identical thickness specifications of 80.0µin (2.03µm). The tin finish on the substitute part complies with RoHS3 regulations. For applications where tin-lead finish is explicitly required by design specification, the original 640440-4 remains available.

Q: Why is the 640440-4 listed as obsolete?

A: The 640440-4 is classified as obsolete by TE Connectivity, indicating that the manufacturer has discontinued active production and support. The 3-640440-4 represents the active production equivalent within the MTA-100 series, ensuring continued availability and manufacturer support.

Q: Are there packaging differences between the two parts?

A: The 640440-4 packaging specification is not provided in the technical data. The 3-640440-4 is supplied in bulk packaging. Packaging differences do not affect connector functionality or compatibility.

Q: Which part should be specified for new designs?

A: The 3-640440-4 should be specified for new designs. This part is active in production, ROHS3 compliant, and supported by TE Connectivity. The 640440-4 should be reserved for legacy system maintenance where existing inventory is available.

Q: Is the 3-640440-4 suitable for applications requiring RoHS compliance?

A: Yes. The 3-640440-4 is ROHS3 compliant and suitable for applications subject to RoHS directives. The 640440-4 is RoHS non-compliant and not suitable for applications with RoHS compliance requirements.

Q: What is the inventory status for each part?

A: The 640440-4 has 937 pieces in stock. The 3-640440-4 has 2100 pieces in stock. Both parts are available as new original components.

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

A: Yes. Both the 640440-4 and 3-640440-4 support discrete or ribbon cable termination via IDC (Insulation Displacement Contact) method at 22 AWG wire gauge.