TE Connectivity AMP Connectors 3-641243-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 3-641243-3 is a 3 Position Rectangular Receptacle Connector with IDC termination, designed for 26 AWG discrete or ribbon cable applications. This connector features gold contact finish, 0.100" (2.54mm) pitch, and feed-through capability with locking ramp fastening. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability for new production and field service applications.

Substiute Parts

3-641243-3

TE Connectivity AMP ConnectorsIn Stock: 10673-641243-3 Datasheet

Current PartRFQ

MTD-A-03-E-1

Adam TechIn Stock: 1944MTD-A-03-E-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 3-641243-3 with the Adam Tech MTD-A-03-E-1 is based on functional equivalence across all critical mechanical and electrical parameters. Both connectors share identical specifications for connector type (receptacle), contact type (female socket), number of positions (3), pitch (0.100"), row configuration (1 row), mounting type (free hanging in-line and right angle), fastening mechanism (locking ramp), cable termination method (IDC), wire gauge (26 AWG), wire type compatibility (discrete or ribbon cable), and feed-through capability.

The key parameters determining substitution eligibility are:

• Connector Type and Contact Configuration
• Position Count and Pitch Spacing
• Mounting and Fastening Specifications
• IDC Termination Compatibility
• Wire Gauge and Cable Type Support
• Feed-Through Feature Availability
• Environmental Compliance (RoHS, REACH, MSL)

Both parts maintain identical color (blue) and environmental ratings (RoHS Compliant, REACH Unaffected, MSL 1). The primary difference is the contact finish material: the original part features gold plating at 30.0µin thickness, while the substitute features tin plating. Both finishes are suitable for IDC applications and provide equivalent electrical performance for this connector category.

Parameter Comparison

Engineering Selection Recommendations

The Adam Tech MTD-A-03-E-1 serves as a direct functional equivalent to the obsolete TE Connectivity 3-641243-3. Selection of the substitute part is supported by the following engineering criteria:

Product Status Consideration: The original TE Connectivity part is classified as obsolete, creating supply chain risk for ongoing production and field service requirements. The Adam Tech MTD-A-03-E-1 maintains active product status, ensuring continued availability and manufacturer support.

Compliance Alignment: Both parts maintain equivalent environmental compliance certifications. The substitute achieves ROHS3 Compliant status, representing current regulatory standards, while the original achieves RoHS Compliant status. Both parts are REACH Unaffected and carry MSL 1 (Unlimited) moisture sensitivity ratings, indicating no special handling requirements.

Mechanical and Electrical Equivalence: The substitute part maintains identical specifications across all functional parameters: 3-position receptacle configuration, 0.100" pitch, IDC termination for 26 AWG wire, feed-through capability, and locking ramp fastening. These parameters ensure direct mechanical and electrical compatibility within existing designs.

Contact Finish Consideration: The substitute employs tin plating rather than gold plating. Both finishes are standard for IDC connector applications and provide equivalent electrical performance and corrosion resistance for this connector category and application environment.

Frequently Asked Questions (FAQ)

Q: Can the Adam Tech MTD-A-03-E-1 directly replace the TE Connectivity 3-641243-3 in existing designs?

A: Yes. The substitute part maintains identical mechanical dimensions, pitch spacing, mounting configuration, and IDC termination specifications. No design modifications are required for direct substitution.

Q: What is the significance of the contact finish difference between gold and tin?

A: Both gold and tin finishes are standard for IDC rectangular connectors and provide equivalent electrical performance and corrosion resistance in typical application environments. The contact finish difference does not affect functional compatibility or electrical characteristics for this connector category.

Q: Are there any environmental or compliance concerns with using the substitute part?

A: No. The Adam Tech MTD-A-03-E-1 maintains equivalent environmental compliance certifications (ROHS3 Compliant, REACH Unaffected, MSL 1) and meets or exceeds the regulatory requirements of the original part.

Q: Does the substitute part support the same wire gauge and cable types?

A: Yes. The Adam Tech MTD-A-03-E-1 supports 26 AWG wire gauge and is compatible with both discrete and ribbon cable types, identical to the original TE Connectivity part.

Q: What is the packaging difference between these parts?

A: The original TE Connectivity part packaging information is not specified. The Adam Tech substitute is supplied in bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: Are both parts suitable for feed-through applications?

A: Yes. Both the TE Connectivity 3-641243-3 and Adam Tech MTD-A-03-E-1 feature feed-through capability, enabling signal pass-through functionality in daisy-chain or multi-stage connector configurations.

Q: What is the locking ramp fastening mechanism?

A: The locking ramp is the fastening method used to secure the connector housing and maintain contact integrity. Both parts employ identical locking ramp fastening specifications, ensuring equivalent mechanical retention and reliability.