TE Connectivity 643815-2 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 643815-2 is a 2-position rectangular receptacle connector from the MTA-100 series, designed for IDC (Insulation Displacement Contact) termination with 26 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 becomes increasingly difficult. Direct substitutes with active product status and improved compliance certifications are available to ensure continued design support and supply chain reliability.

Substiute Parts

643815-2

TE Connectivity AMP ConnectorsIn Stock: 920643815-2 Datasheet

Current PartRFQ

3-643815-2

TE Connectivity AMP ConnectorsIn Stock: 68703-643815-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 3-643815-2 is classified as a direct equivalent based on the following critical parameters that determine substitution compatibility:

Electrical Parameters:

• Identical number of positions (2)
• Identical pitch spacing (0.100" / 2.54mm)
• Identical contact type (Female Socket)
• Identical wire gauge specification (26 AWG)
• Identical cable termination method (IDC)

Mechanical Parameters:

• Identical mounting type (Free Hanging In-Line, Right Angle)
• Identical fastening type (Locking Ramp)
• Identical connector series (MTA-100)
• Identical features (Closed End)
• Identical color (Blue)

Physical Parameters:

• Identical contact finish thickness (80.0µin / 2.03µm)
• Identical number of rows (1)

The primary difference between the main part and substitute is the contact finish material (tin-lead versus tin) and product status transition from obsolete to active.

Parameter Comparison

Engineering Selection Recommendations

For New Designs and Redesigns: Part 3-643815-2 is the appropriate selection. This part maintains active product status with full manufacturer support and carries RoHS compliance certification, meeting current regulatory requirements for electronic component procurement.

For Legacy System Maintenance: Part 643815-2 remains functionally compatible with existing assemblies due to identical electrical and mechanical parameters. However, the transition to 3-643815-2 is recommended when inventory permits, as the substitute provides improved compliance posture and assured long-term availability.

Compliance Considerations: The substitute part 3-643815-2 is RoHS compliant, whereas the main part 643815-2 is RoHS non-compliant. Organizations subject to RoHS regulations must use the substitute part. The contact finish change from tin-lead to tin aligns with lead-free manufacturing standards.

Supply Chain Continuity: The main part 643815-2 is classified as obsolete. The substitute part 3-643815-2 is active with significantly higher inventory availability (6828 pieces versus 831 pieces), ensuring reliable procurement for production requirements.

Frequently Asked Questions (FAQ)

Q: Can 3-643815-2 be used as a direct replacement for 643815-2 in existing assemblies?

A: Yes. Both parts are identical in all electrical and mechanical parameters including connector type, position count, pitch, contact configuration, mounting type, fastening mechanism, and cable termination method. The parts are mechanically and electrically interchangeable.

Q: What is the difference between the tin-lead finish on 643815-2 and the tin finish on 3-643815-2?

A: The contact finish material differs, with 643815-2 using tin-lead and 3-643815-2 using tin. Both finishes maintain the same thickness specification of 80.0µin (2.03µm). The tin finish on 3-643815-2 aligns with lead-free manufacturing standards and RoHS compliance requirements.

Q: Why is 643815-2 classified as obsolete?

A: Product status reflects manufacturer lifecycle decisions. The substitute part 3-643815-2 provides continued support for the MTA-100 series 2-position receptacle connector with active manufacturing status.

Q: Are there packaging differences between these parts?

A: Yes. Part 643815-2 has unspecified packaging, while 3-643815-2 is supplied in bulk packaging. Confirm packaging requirements with procurement specifications.

Q: Does the RoHS compliance difference affect compatibility?

A: From a functional and mechanical standpoint, no. Both parts operate identically in the application. However, RoHS compliance is a regulatory requirement in many jurisdictions. Organizations subject to RoHS regulations must use 3-643815-2.

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

A: Yes. Both parts support discrete or ribbon cable termination via IDC (Insulation Displacement Contact) method at 26 AWG wire gauge.

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

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.