TE Connectivity 644040-7 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644040-7 is a 7-position rectangular receptacle connector from the MTA-100 series, designed for IDC (Insulation Displacement Contact) termination with 26 AWG wire. This connector features gold-plated female socket contacts, a closed-end design, and supports both discrete and ribbon cable configurations with a 0.100" (2.54mm) pitch.

The 644040-7 is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure continued availability for new designs, maintenance applications, and production continuity where this connector type is specified.

Substiute Parts

644040-7

TE Connectivity AMP ConnectorsIn Stock: 872644040-7 Datasheet

Current PartRFQ

3-644040-7

TE Connectivity AMP ConnectorsIn Stock: 7583-644040-7 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 644040-7 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Connector type (Receptacle)
• Contact type (Female Socket)
• Number of positions (7)
• Pitch (0.100" / 2.54mm)
• Number of rows (1)
• Cable termination method (IDC)
• Wire gauge compatibility (26 AWG)
• Contact finish (Gold)
• Contact finish thickness (15.0µin / 0.38µm)

Mechanical Parameters:

• Mounting type (Free Hanging In-Line, Right Angle)
• Fastening type (Locking Ramp)
• Closed-end design

Regulatory Parameters:

• Series designation (MTA-100)
• Moisture sensitivity level (MSL 1)
• REACH and ECCN classifications

Substitute parts must maintain identical specifications across all these parameters to ensure mechanical fit, electrical performance, and functional compatibility with existing mating connectors and cable assemblies.

Parameter Comparison

Engineering Selection Recommendations

The 3-644040-7 is a direct functional equivalent to the 644040-7 across all electrical and mechanical parameters. Both parts are manufactured by TE Connectivity within the MTA-100 series and maintain identical specifications for connector type, contact configuration, pitch, termination method, and wire gauge.

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

644040-7 (Main Part): Classified as obsolete with RoHS non-compliant status. This part number should not be selected for new designs or applications requiring regulatory compliance with current environmental standards.

3-644040-7 (Substitute): Maintains active product status with ROHS3 compliance certification. This part is the current production equivalent and is suitable for new designs, production applications, and systems requiring compliance with modern regulatory requirements.

For applications where the 644040-7 is currently specified, the 3-644040-7 provides direct substitution without modification to mating connectors, cable assemblies, or circuit board layouts. The identical pitch, position count, contact finish, and mounting configuration ensure mechanical and electrical interchangeability.

Frequently Asked Questions (FAQ)

Q: Can the 3-644040-7 be used as a direct replacement for the 644040-7 in existing assemblies?

A: Yes. The 3-644040-7 is electrically and mechanically equivalent to the 644040-7. Both connectors share identical specifications for number of positions (7), pitch (0.100"), contact type (female socket), termination method (IDC), wire gauge (26 AWG), and mounting configuration. No modifications to mating connectors or cable assemblies are required.

Q: What is the difference between the 644040-7 and 3-644040-7?

A: The primary differences are product status and regulatory compliance. The 644040-7 is obsolete and RoHS non-compliant. The 3-644040-7 is an active product with ROHS3 compliance. All electrical and mechanical specifications are identical.

Q: Why should I use the 3-644040-7 instead of the 644040-7?

A: The 3-644040-7 is the current production part with active availability and ROHS3 compliance certification. The 644040-7 is obsolete and does not meet modern environmental regulatory requirements. For new designs and production applications, the 3-644040-7 is the appropriate selection.

Q: Are there any packaging differences between these parts?

A: The 644040-7 is supplied in standard packaging, while the 3-644040-7 is supplied in bulk packaging. Both parts are identical in form, fit, and function. Packaging differences do not affect connector performance or compatibility.

Q: Will the 3-644040-7 work with existing MTA-100 series mating connectors?

A: Yes. Both the 644040-7 and 3-644040-7 are part of the MTA-100 series with identical pitch (0.100"), position count (7), and contact configuration. The 3-644040-7 is fully compatible with all MTA-100 series plug connectors and cable assemblies designed for the 644040-7.

Q: What wire gauges are supported by the 3-644040-7?

A: The 3-644040-7 supports 26 AWG wire for both discrete and ribbon cable configurations using IDC termination. This specification is identical to the 644040-7.

Q: Is the contact finish the same on both parts?

A: Yes. Both the 644040-7 and 3-644040-7 feature gold-plated contacts with a finish thickness of 15.0µin (0.38µm). Contact finish specifications are identical.