TE Connectivity 640443-8 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640443-8 is an 8-position rectangular receptacle connector from the MTA-100 series, designed for IDC (Insulation Displacement Contact) termination with 28 AWG discrete or ribbon cable. This connector features tin-lead contact finish, a closed-end design, and a locking ramp fastening mechanism suitable for free-hanging in-line or right-angle mounting applications. The part maintains Active product status with 843 units currently in stock. Identifying equivalent and substitute parts is necessary to address supply chain requirements, packaging preferences, and compliance specifications while maintaining electrical and mechanical compatibility.

Substiute Parts

640443-8

TE Connectivity AMP ConnectorsIn Stock: 895640443-8 Datasheet

Current PartRFQ

3-640443-8

TE Connectivity AMP ConnectorsIn Stock: 202033-640443-8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 640443-8 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector type (Receptacle)
• Number of positions (8)
• Pitch specification (0.100" / 2.54mm)
• Number of rows (1)
• Contact type (Female Socket)
• Cable termination method (IDC)
• Wire gauge compatibility (28 AWG)
• Mounting type (Free Hanging In-Line, Right Angle)
• Fastening type (Locking Ramp)
• Series designation (MTA-100)
• Contact finish thickness (80.0µin / 2.03µm)
• Closed-end feature
• Moisture sensitivity level (1)

The substitute part 3-640443-8 maintains complete equivalence across all mandatory parameters. The primary distinction between the main part and its substitute relates to contact finish composition (tin-lead versus tin) and RoHS compliance status, which do not affect mechanical or electrical compatibility within the specified parameter set.

Parameter Comparison

Engineering Selection Recommendations

640443-8 Selection Criteria: The 640443-8 is appropriate for applications where RoHS non-compliance is acceptable or where tin-lead contact finish is specifically required. This part maintains Active product status with established inventory levels.

3-640443-8 Selection Criteria: The 3-640443-8 is the preferred substitute for applications requiring ROHS3 compliance. Both parts are Active products from TE Connectivity. The substitute part offers significantly higher inventory availability (20131 units versus 843 units), making it suitable for high-volume procurement requirements. The contact finish difference (tin versus tin-lead) does not affect mechanical or electrical compatibility within the specified parameter constraints.

Both parts share identical electrical and mechanical specifications, series designation, and termination characteristics. Selection between these parts should be based on compliance requirements and packaging preferences rather than functional performance considerations.

Frequently Asked Questions (FAQ)

Q: Are the 640443-8 and 3-640443-8 mechanically interchangeable?

A: Yes. Both connectors maintain identical mechanical specifications including pitch (0.100"), number of positions (8), mounting type (free-hanging in-line and right-angle), fastening mechanism (locking ramp), and closed-end design. They are direct mechanical substitutes.

Q: What is the difference between tin-lead and tin contact finishes in these connectors?

A: The 640443-8 features tin-lead contact finish while the 3-640443-8 features tin contact finish. Both maintain the same contact finish thickness (80.0µin / 2.03µm). The contact finish difference does not affect electrical performance or mechanical compatibility within the specified parameter set.

Q: Why does the 3-640443-8 have significantly higher inventory?

A: The 3-640443-8 is packaged in bulk format and carries ROHS3 compliance certification, making it suitable for broader market applications and higher-volume procurement scenarios. The 640443-8 is available in unspecified packaging with RoHS non-compliant status.

Q: Can I use these connectors with different wire gauges?

A: No. Both connectors are specified for 28 AWG wire only. The IDC termination mechanism is designed specifically for this wire gauge. Using different wire gauges will result in improper termination and connector failure.

Q: Are these connectors suitable for ribbon cable applications?

A: Yes. Both the 640443-8 and 3-640443-8 support discrete or ribbon cable termination via IDC (Insulation Displacement Contact) technology. The closed-end design accommodates standard ribbon cable configurations.

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

A: Both connectors carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions. These parts can be stored and handled without special moisture control measures.

Q: Which part should I select for new designs?

A: Selection depends on compliance requirements. For applications requiring ROHS3 compliance, specify the 3-640443-8. For applications where RoHS non-compliance is acceptable, either part is suitable. Both maintain Active product status and are manufactured by TE Connectivity.