B5743-204-M-T-A

Overview

The B5743-204-M-T-A is a Datamate L-Tek header connector manufactured by Harwin Inc. It features a 4-position, dual in-line vertical configuration with a 2mm (0.079 inch) pin-to-pin spacing. Designed for through-hole mounting, the male contacts are gold-plated to ensure reliable signal transmission. The unit utilizes a shrouded housing constructed from glass-filled polyester, rated UL94 V-0 for flammability. It operates within a temperature range of -55°C to +125°C and supports a rated current of 2.2A at 800VAC/DC.

Feature Summary

• Shrouded four-wall design prevents misalignment during mating
• Gold-plated male pins provide corrosion resistance
• Vertical through-hole termination ensures secure PCB attachment

Applications

• Industrial control system interconnects
• Medical device signal routing
• Automotive electronics modules

Procurement Notes

Verify the specific suffix 'A' against official Harwin documentation to confirm exact plating thickness and material specifications. Ensure compatibility with corresponding female sockets within the same Datamate L-Tek series. Confirm RoHS compliance status directly with the manufacturer prior to procurement.

Selection Notes

Select this component when a compact, low-profile vertical header is required for space-constrained designs. The 2mm pitch offers a balance between density and ease of assembly. Verify that the 2.2A current rating meets the application's electrical load requirements before finalizing the selection.

Part Context

This part belongs to the Datamate L-Tek family, known for high-density interconnect solutions. The B5743 prefix indicates a male header variant. Similar models like B5743-206-M-T-1 offer higher pin counts while maintaining identical mechanical and electrical characteristics for consistent system integration.

Replacement Considerations

Cross-reference with M80-8670442 as a potential equivalent. Verify pin count, pitch, and mounting style match exactly before substitution.