BAS19 is a type of diode manufactured by Diotec Semiconductor. It is a high-reliability, low-temperature coefficient Schottky diode intended for use in high-power, high-temperature applications. It features a maximum forward voltage drop of 0.62V, a reverse breakdown voltage of 12V, and a reverse leakage current of 5µA. Additionally, it has a fast switching speed and a low capacitance. It is used in applications such as high-current switching, protection circuits, TVS, and voltage clamping.