TE Connectivity 644038-7 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644038-7 is a 7-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 gold-plated contacts, a closed-end design, and red housing with a locking ramp fastening mechanism. The part is classified as obsolete, making identification of active equivalent components essential for ongoing procurement and system maintenance.

Substiute Parts

644038-7

TE Connectivity AMP ConnectorsIn Stock: 775644038-7 Datasheet

Current PartRFQ

3-644038-7

TE Connectivity AMP ConnectorsIn Stock: 10933-644038-7 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 644038-7 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Series: MTA-100
• Number of Positions: 7
• Pitch: 0.100" (2.54mm)
• Connector Type: Receptacle
• Contact Type: Female Socket
• Cable Termination: IDC
• Wire Gauge: 22 AWG
• Contact Finish: Gold
• Contact Finish Thickness: 15.0µin (0.38µm)
• Mounting Type: Free Hanging (In-Line), Right Angle
• Fastening Type: Locking Ramp
• Housing Color: Red
• Features: Closed End

The substitute part 3-644038-7 maintains complete electrical and mechanical compatibility with the original 644038-7 across all specified parameters. The primary distinction is product status: the original part is obsolete, while the substitute is active in production.

Parameter Comparison

Engineering Selection Recommendations

For New Designs and Procurement: The substitute part 3-644038-7 is the appropriate selection for all applications currently using or specifying the 644038-7. This part is active in production with higher inventory availability (1038 pcs vs. 703 pcs) and carries ROHS3 compliance certification, meeting current regulatory requirements.

For Legacy System Maintenance: The 644038-7 remains functionally equivalent to 3-644038-7 for existing installations. Both parts share identical electrical and mechanical specifications, including connector geometry, contact configuration, and termination method. The transition to 3-644038-7 is driven by product lifecycle management and regulatory compliance rather than technical incompatibility.

Compliance Considerations: Both parts maintain RoHS compliance and MSL Level 1 rating. The substitute part carries ROHS3 certification, representing the current regulatory standard. Both parts are classified under ECCN EAR99 and HTSUS 8536.69.8000.

Frequently Asked Questions (FAQ)

Q: Can 3-644038-7 be used as a direct replacement for 644038-7 in existing assemblies?

A: Yes. The 3-644038-7 is a direct functional equivalent with identical electrical and mechanical specifications. All parameters including connector type, position count, pitch, contact configuration, termination method, and housing design are identical.

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

A: The primary difference is product status. The 644038-7 is obsolete, while 3-644038-7 is active in production. The substitute part also carries ROHS3 certification versus RoHS compliance on the original. All technical specifications remain unchanged.

Q: Are there packaging differences between these parts?

A: The original 644038-7 packaging specification is not provided. The substitute 3-644038-7 is supplied in bulk packaging. Confirm packaging requirements with your procurement specification.

Q: Will 3-644038-7 work with existing mating connectors designed for 644038-7?

A: Yes. Both parts are MTA-100 series receptacles with identical pitch (0.100"), position count (7), and connector geometry. They are fully compatible with the same mating plugs and cable assemblies.

Q: Are there any wire gauge or termination method differences?

A: No. Both parts accept 22 AWG discrete or ribbon cable via IDC termination. The contact design and termination force specifications are identical.

Q: What is the contact finish specification for both parts?

A: Both parts feature gold-plated contacts with 15.0µin (0.38µm) thickness, providing equivalent electrical performance and corrosion resistance.