The 1N5819RLG is a Schottky diode and rectifier manufactured by ON Semiconductor. It is a 1A, 40V unidirectional, quick recovery device specially designed for applications as switches, rectifiers, and protectors in low voltage, high frequency circuits. The device can handle repetitive reverse voltage up to 40V, and has an average forward current of 1A. The rectifier has an operating temperature range of -65°C to +125°C, and is available in a TO-220AB package.