TE Connectivity 643234-2 Rectangular Connector: Equivalent & Substitute Parts

Part Overview

The TE Connectivity 643234-2 is a 6-position header connector from the Universal MATE-N-LOK series, designed for board-to-cable/wire applications with through-hole, right-angle mounting. This connector features gold-plated mating contacts and tin-lead plated posts for solder termination. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure component availability for new production and repair applications.

Substiute Parts

643234-2

TE Connectivity AMP ConnectorsIn Stock: 777643234-2 Datasheet

Current PartRFQ

3-643234-0

TE Connectivity AMP ConnectorsIn Stock: 19813-643234-0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete TE Connectivity 643234-2 is determined by strict equivalence across the following critical parameters:

Electrical and Mechanical Compatibility Criteria:

• Connector type classification (Header)
• Position count (6 positions)
• Mating pitch specification (0.250" / 6.35mm)
• Mounting configuration (Through Hole, Right Angle)
• Contact type (Female Socket)
• Termination method (Solder)
• Mating contact finish (Gold plating)
• Insulation material composition (Polyamide/Nylon)
• Flammability certification (UL94 V-0)
• Series designation (Universal MATE-N-LOK)

The substitute part 3-643234-0 maintains full equivalence across all specified parameters. The primary distinction is product status transition from obsolete to active, with corresponding RoHS compliance upgrade and contact post finish modification from tin-lead to tin.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 3-643234-0 is the direct functional equivalent for the obsolete 643234-2 model. Selection of the substitute part is based on the following engineering considerations:

Product Status: The 643234-2 is classified as obsolete, creating supply chain risk and limiting availability for ongoing production. The 3-643234-0 maintains active product status with confirmed inventory of 1908 pieces, ensuring reliable component sourcing.

Regulatory Compliance: The substitute part 3-643234-0 is ROHS3 compliant, meeting current environmental and regulatory requirements for electronic components in most jurisdictions. The original 643234-2 is RoHS non-compliant, which may restrict its use in new designs or applications subject to RoHS regulations.

Contact Post Finish: The substitute part features tin-plated posts compared to the tin-lead finish of the original part. This modification aligns with lead-free soldering standards and RoHS compliance requirements while maintaining solder joint reliability and mechanical integrity.

Mechanical and Electrical Equivalence: All critical parameters determining connector function, mating compatibility, and board integration remain identical between the two parts. The connector maintains the same 6-position configuration, 0.250" pitch, through-hole right-angle mounting, and gold-plated mating contacts.

Frequently Asked Questions (FAQ)

Q: Can the 3-643234-0 be used as a direct replacement for the 643234-2 in existing designs?

A: Yes. The 3-643234-0 is mechanically and electrically equivalent to the 643234-2 across all specified parameters. Both connectors feature identical position count, pitch, mounting configuration, contact type, and mating contact finish. The parts are interchangeable for board-to-cable/wire applications.

Q: What is the difference between the tin-lead finish on the 643234-2 and the tin finish on the 3-643234-0?

A: The 643234-2 uses tin-lead plating on the solder posts, while the 3-643234-0 uses tin plating. The tin finish on the substitute part is compatible with lead-free soldering processes and RoHS3 compliance requirements. Both finishes provide adequate solder joint formation and mechanical strength for through-hole termination.

Q: Why is the 643234-2 classified as obsolete?

A: The 643234-2 is obsolete due to its RoHS non-compliant status and tin-lead contact finish, which do not meet current regulatory standards. The 3-643234-0 supersedes this part with RoHS3 compliance and lead-free contact finishing.

Q: Are there any packaging differences between the two parts?

A: The 643234-2 packaging is not specified in available documentation. The 3-643234-0 is supplied in bulk packaging. Packaging format does not affect connector function or compatibility.

Q: What is the inventory status for the substitute part?

A: The 3-643234-0 has 1908 pieces in stock as new original inventory, providing reliable availability for production and repair applications.

Q: Do both connectors meet the same flammability and material standards?

A: Yes. Both the 643234-2 and 3-643234-0 meet UL94 V-0 material flammability rating and use identical Polyamide (PA) Nylon insulation material. They are equivalent in terms of material safety and performance characteristics.

Q: Is the 3-643234-0 suitable for applications requiring lead-free soldering?

A: Yes. The tin-plated posts on the 3-643234-0 are designed for lead-free soldering processes and are fully compatible with RoHS3 compliant manufacturing workflows.