TE Connectivity 643410-2 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity 643410-2 is a shrouded vertical rectangular connector header designed for through-hole mounting in board-to-cable/wire applications. This 8-position connector operates within the Universal MATE-N-LOK series and features a 0.250" (6.35mm) pitch with gold-plated mating contacts and tin-lead plated posts. The part is classified as obsolete, necessitating identification of active equivalent components to maintain design continuity and ensure ongoing component availability for production and field service applications.

Substiute Parts

643410-2

TE Connectivity AMP ConnectorsIn Stock: 1183643410-2 Datasheet

Current PartRFQ

643410-3

TE Connectivity AMP ConnectorsIn Stock: 728643410-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The TE Connectivity 643410-3 qualifies as a direct functional equivalent to the 643410-2 based on alignment across all critical electrical and mechanical parameters. Both connectors share identical specifications for connector type (header), contact type (male pin), number of positions (8), mating pitch (0.250"), mounting method (through hole), shrouding configuration (shrouded 4-wall), termination approach (solder), current rating (12A), voltage rating (600VAC), and operating temperature range (-40°C to 105°C). The connectors are members of the same Universal MATE-N-LOK series and feature identical insulation material (polyamide/nylon), contact shape (circular), and flammability rating (UL94 V-0).

The primary distinction between these parts is product status and contact finish specification on the post termination. The 643410-2 carries an obsolete designation with tin-lead post plating, while the 643410-3 maintains active product status with tin post plating. Both configurations deliver equivalent electrical performance and mechanical compatibility within the specified parameter envelope.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 643410-3 serves as the active production equivalent for the obsolete 643410-2. Both connectors deliver identical electrical performance and mechanical compatibility across all specified parameters. The 643410-3 is the recommended selection for new designs and ongoing production requirements due to its active product status and RoHS compliance certification.

For applications requiring RoHS compliance, the 643410-3 is the appropriate choice. The 643410-2, classified as RoHS non-compliant, is suitable only for legacy system maintenance where original component specifications must be preserved or where RoHS exemptions apply.

The transition from tin-lead post plating (643410-2) to tin post plating (643410-3) does not affect electrical performance or mechanical compatibility. Both finishes provide equivalent solder joint reliability and contact resistance characteristics within the specified operating parameters.

Frequently Asked Questions (FAQ)

Q: Can the 643410-3 be used as a direct replacement for the 643410-2 in existing designs?

A: Yes. The 643410-3 is electrically and mechanically compatible with the 643410-2. Both connectors share identical specifications for pitch, number of positions, current rating, voltage rating, operating temperature range, and mounting configuration. The connectors are interchangeable within the same circuit board layout and mating interface.

Q: What is the difference between the tin-lead post finish on the 643410-2 and the tin post finish on the 643410-3?

A: The post finish difference reflects the transition from tin-lead to tin plating. Both finishes provide equivalent solder joint performance and contact resistance. The tin post finish on the 643410-3 aligns with RoHS compliance requirements and modern manufacturing standards.

Q: Why is the 643410-2 classified as obsolete?

A: The 643410-2 has been superseded by the 643410-3 in the manufacturer's active product portfolio. The 643410-3 maintains identical functionality while offering RoHS compliance and active production support.

Q: Are there packaging differences between the 643410-2 and 643410-3?

A: The 643410-2 is supplied in standard packaging, while the 643410-3 is supplied in bulk packaging. Both packaging formats contain the same connector component with identical electrical and mechanical specifications.

Q: What applications are suitable for these connectors?

A: Both the 643410-2 and 643410-3 are rated for general-purpose applications. The 12A current rating and 600VAC voltage rating support a broad range of board-to-cable/wire interconnection requirements within the specified operating temperature range of -40°C to 105°C.

Q: Is the 643410-3 suitable for new product designs?

A: Yes. The 643410-3 is the recommended connector for new designs. Its active product status, RoHS compliance, and identical electrical and mechanical specifications to the 643410-2 make it the appropriate choice for current and future applications.