B5743-104-M-L-3

Overview

The B5743-104-M-L-3 is a Datamate L-Tek male header connector manufactured by Harwin Inc. It features a 4-position configuration with a 2mm (0.079 inch) pitch. The component utilizes a right-angle through-hole mounting style for board-to-cable or board-to-board applications. Contact surfaces are gold-plated, and the housing is constructed from polybutylene terephthalate (PBT). The connector supports an insulation resistance of 1 GOhm and operates within standard industrial temperature ranges.

Feature Summary

• Right-angle design facilitates compact board layouts
• Gold-plated contacts ensure reliable signal transmission
• Shrouded housing provides four-wall protection

Applications

• Board-to-board interconnects
• Board-to-cable connections
• Compact electronic device assemblies

Procurement Notes

Verify the specific suffix codes against official Harwin documentation to confirm orientation and plating specifications. Ensure compatibility with mating sockets in the Datamate L-Tek series. Confirm RoHS compliance status for the specific production batch before integration into regulated environments.

Selection Notes

Select this part for applications requiring right-angle termination to save vertical space. The 2mm pitch suits moderate density requirements. Verify that the mating female counterpart matches the small bore specification. Consider mechanical latch requirements if vibration resistance is critical for the deployment environment.

Part Context

This component belongs to the Datamate L-Tek family, designed for high-density interconnects. The B5743 prefix indicates a male header variant. The L-Tek series is known for its robust mechanical latching system and shrouded design, ensuring secure connection stability in demanding industrial and commercial electronics applications.

Replacement Considerations

Cross-reference with M80-8670422 for equivalent pin counts and pitch. Verify physical dimensions and latch mechanisms match existing PCB footprints. Ensure mating socket availability aligns with supply chain requirements before substitution.