B5743-102-M-L-3

Overview

The Harwin B5743-102-M-L-3 is a Datamate L-Tek male header connector featuring two positions with a 2.00 mm pitch. It utilizes a horizontal through-hole mounting style with solder pin termination and gold-plated contacts. The housing is constructed from black polyester reinforced with glass fiber, rated UL94 V-0 for flammability. This component supports a current rating of 2.2A and operates within a temperature range of -55°C to +125°C.

Feature Summary

• Datamate L-Tek series design with secure latching mechanism
• High-temperature resistant housing material
• Copper alloy contact construction

Applications

• Board-to-board interconnections
• Cable-to-board connections
• General purpose electronic assemblies

Procurement Notes

Verify the specific suffix variant (L-1 or L-3) against project requirements, as orientation differs between vertical and horizontal configurations. Confirm RoHS compliance status directly with the manufacturer, as historical data indicates potential variations in lead content depending on production batch and revision. Ensure the selected part matches the required mechanical locking style for the intended assembly process.

Selection Notes

Select this component when a low-profile, horizontally oriented male header is required for space-constrained designs. The 2.00 mm pitch allows for dense circuit board layouts while maintaining reliable signal integrity. Consider the latching feature for applications requiring secure mating without additional fasteners. Verify that the 2.2A current rating meets the electrical load requirements of the target application.

Part Context

This part belongs to the Datamate L-Tek family, known for compact, high-density interconnect solutions. The B5743 series specifically offers male headers designed for robust performance in demanding environments. The L-Tek line provides various mounting options and contact counts to support diverse industrial and consumer electronics applications.

Replacement Considerations

M80-8670204 is a confirmed equivalent part number for this component. Cross-reference mechanical dimensions and contact plating specifications before substitution to ensure compatibility with existing tooling and assembly processes.