Schottky diodes are named after the German physicist Walter H. Schottky. Schottky diodes are semiconductor diodes with low forward voltage drop and very fast switching actions, which use the metal-semiconductor junction known as a Schottky barrier. High quality Schottky diodes available from Rapid include power diodes, dual Schottky rectifiers and low power surface mount Schottky diodes, in axial, surface mount, SMB mounting formats. SOT-23, TO-220 series.