B5743-204-M-L-3

Overview

The B5743-204-M-L-3 is a Datamate L-Tek male header connector manufactured by Harwin Inc. It features a 4-position, 2-row configuration with a 2.00mm pitch. Designed for right-angle through-hole mounting, it utilizes gold-plated phosphor bronze contacts and a black polyester insulation housing rated UL94 V-0. The component supports a maximum voltage of 120VAC/DC and operates within a temperature range of -55°C to +125°C.

Feature Summary

• Right-angle board-to-board or cable connection capability
• Secure latching mechanism for reliable engagement
• High-temperature resistant UL94 V-0 insulation housing

Applications

• Industrial control systems requiring robust interconnects
• Automotive electronics assemblies
• Consumer device internal circuitry

Procurement Notes

Verify the specific suffix 'L-3' against the official Harwin datasheet to confirm right-angle orientation and latching style. Ensure compatibility with mating sockets from the same Datamate L-Tek series. Check for RoHS compliance status as manufacturing processes may evolve.

Selection Notes

Select this part for applications necessitating a compact 4-pin interface with secure mechanical retention. The right-angle design facilitates space-constrained PCB layouts. Confirm that the 120V rating and 2.00mm pitch align with system electrical requirements and board spacing constraints.

Part Context

This component belongs to the Datamate L-Tek family, known for high-density interconnect solutions. The B5743 prefix indicates a male header variant. The L-Tek series is widely used in demanding environments due to its durability and precise engineering standards set by Harwin.

Replacement Considerations

M80-8670422 is a documented equivalent part number for this connector type. Verify pin count, pitch, and mounting orientation before substitution to ensure mechanical and electrical compatibility.