TE Connectivity 643816-8 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 643816-8 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 and is classified as obsolete product status.

Due to its obsolete classification, locating original inventory of the 643816-8 becomes increasingly difficult. Identifying equivalent substitute parts with matching electrical and mechanical specifications is necessary to maintain design compatibility and ensure continued availability for repair, maintenance, and production applications.

Substiute Parts

643816-8

TE Connectivity AMP ConnectorsIn Stock: 878643816-8 Datasheet

Current PartRFQ

3-643816-8

TE Connectivity AMP ConnectorsIn Stock: 330623-643816-8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 643816-8 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Connector type (Receptacle)
• Number of positions (8)
• Contact type (Female Socket)
• Wire gauge (28 AWG)
• Cable termination method (IDC)

Mechanical Compatibility Parameters:

• Pitch (0.100" / 2.54mm)
• Number of rows (1)
• Mounting type (Free Hanging, In-Line, Right Angle)
• Fastening type (Locking Ramp)
• Features (Closed End)

Physical Parameters:

• Contact finish thickness (80.0µin / 2.03µm)
• Color (Green)
• Moisture sensitivity level (1)

The substitute part 3-643816-8 maintains equivalence across all these parameters while offering improved product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The 3-643816-8 is a direct functional equivalent to the 643816-8 across all electrical and mechanical parameters. Selection of the substitute part is supported by the following factors:

Product Status: The 3-643816-8 maintains active product status, ensuring continued availability and manufacturer support. The original 643816-8 is classified as obsolete, limiting future procurement options.

Regulatory Compliance: The 3-643816-8 is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The original part carries non-compliant and vendor-undefined status for these certifications.

Inventory Availability: The 3-643816-8 is available in significantly higher quantities (32,959 pieces) compared to the original part (783 pieces), providing greater supply security.

Contact Finish Specification: While the original part specifies tin-lead finish and the substitute specifies tin finish, both maintain the identical contact finish thickness of 80.0µin (2.03µm), ensuring electrical performance equivalence.

The 3-643816-8 is suitable for direct substitution in applications currently using the 643816-8 without modification to connector mating interfaces, cable termination procedures, or circuit board layouts.

Frequently Asked Questions (FAQ)

Q: Can the 3-643816-8 be used as a direct replacement for the 643816-8 in existing designs?

A: Yes. The 3-643816-8 maintains equivalence across all critical electrical and mechanical parameters including connector type, position count, pitch, mounting configuration, IDC termination method, and wire gauge. No design modifications are required.

Q: What is the difference between the tin-lead finish of the 643816-8 and the tin finish of the 3-643816-8?

A: Both finishes maintain the same contact finish thickness of 80.0µin (2.03µm). The contact finish thickness is the parameter that determines electrical performance and mating durability. The difference in finish material does not affect connector compatibility or electrical characteristics.

Q: Why is the 643816-8 classified as obsolete?

A: The 643816-8 is no longer in active production. The 3-643816-8 serves as the current production equivalent within the MTA-100 series.

Q: Are there packaging differences between these parts?

A: The 643816-8 packaging is listed as unspecified. The 3-643816-8 is supplied in bulk packaging. Both parts are identical in form, fit, and function.

Q: Does the RoHS3 compliance of the 3-643816-8 affect compatibility with the 643816-8?

A: No. RoHS3 compliance is a manufacturing and environmental standard that does not alter the electrical or mechanical characteristics of the connector. The 3-643816-8 is fully compatible with applications designed for the 643816-8.

Q: What is the significance of the REACH status difference?

A: The 3-643816-8 is REACH unaffected, indicating full compliance with chemical substance regulations. The original part carries vendor-undefined status. This difference does not affect connector performance but reflects improved regulatory documentation for the substitute part.

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

A: Yes. Both the 643816-8 and 3-643816-8 support discrete or ribbon cable termination via IDC method at 28 AWG wire gauge.