Diotec kt20x120 20a protectifier low vf rectifiers overvoltage protect 2 polarit diotec kt20k120 a 120v 20a protectifier silicon rectifier diode that features low forward losses and overvoltage protection the diode has standard polarity where the cathode is the tab also has high reverse pulse power capability and comes in a to 220ac package diotec kt20k120 rectifier diode standard polarity 120v 20a to 220ac