B5743-206-M-L-2

Overview

The B5743-206-M-L-2 is a Datamate L-Tek header connector manufactured by Harwin Inc. It features a vertical, dual-row configuration with six male pin contacts arranged in a 2x3 layout. The connector utilizes a 2.00mm (0.079 inch) pitch and employs a through-hole solder termination method for secure board attachment. Constructed with phosphor bronze contacts and gold plating on the mating interface, it ensures reliable electrical performance. The housing is made of black, glass-reinforced polyester rated UL94 V-0. Designed for board-to-board or cable applications, it supports a maximum current of 2.2A and withstands voltages up to 800V across an operating temperature range of -55°C to +125°C.

Feature Summary

• Vertical dual-row design with six male pins for compact board-to-board interconnects
• Gold-plated phosphor bronze contacts ensure durable signal transmission
• Four-wall shrouded housing provides precise alignment and environmental protection
• Through-hole solder termination offers robust mechanical stability

Applications

• Board-to-board connections in industrial control systems
• Signal routing in telecommunications equipment
• Interfacing modules within automotive electronic assemblies
• Data acquisition hardware interfaces

Procurement Notes

Verify component authenticity against Harwin Inc. official documentation due to potential obsolescence risks. Confirm that the specific suffix 'L-2' corresponds to the intended right-angle orientation if required by the design. Ensure compatibility with mating sockets from the same Datamate L-Tek series. Check for recent Product Change Notices regarding material updates or manufacturing source changes before finalizing procurement plans.

Selection Notes

Select this model when a vertical, low-profile header is needed for dense circuit layouts. The 2.00mm pitch allows for high I/O density while maintaining standard spacing. Choose this variant over surface-mount options if through-hole assembly processes are mandated for enhanced mechanical strength. Verify that the 2.2A current rating meets the load requirements of the connected circuits.

Part Context

This component belongs to the Datamate L-Tek family, known for its small form factor and high reliability. The B5743 series specifically denotes male headers with latch mechanisms. The 'M' indicates male contacts, while 'L' typically signifies a right-angle configuration in Harwin's naming convention. This series is widely used in space-constrained applications requiring robust connectivity.

Replacement Considerations

Publicly confirmed substitute part numbers include B5743-206-M-T-B and B5743-206-ML1. Verify mechanical dimensions and pinout compatibility before substitution. Note that some alternatives may differ in termination style or orientation.