SolutionsThe BAT54A is a Schottky Barrier Diode (SBD) SOT-23 (SOT-23-3) manufactured by SMC Diode Solutions. It is a RoHS compliant, discrete diode designed to protect applications from current inrush, over-current, and electrostatic discharge. The device can provide a very low forward voltage drop of approximately 0.3V at room temperature, and is capable of handling up to 200V reverse voltage. It also has an avalanche capability, which ensures it can perform a robust protection function without suffering any permanent damage. The BAT54A is used in many applications including power management, signal and data line protection, motor protection, automation systems, battery discharge protection, surge protection, etc. It is an ultra-small surface mount package, which makes it an ideal option for high-density board designs.