Rectifier Diode - SODIAL(R) 20Pcs Through Hole Mount Schottky Barrier Rectifier Diode 60V 5A SR560 Schottky diode is mainly as a rectifier diode the fly-wheel diode, protection diode, and small signal detection in the circuit. mainly used in low voltage, high current circuits, such as driver, switching power supply, inverter, inverter circuit, etc. For point-contact schottky diode, is mainly used in microwave communication circuit.