Diotec sbx2040 2nd generation bypass axial schottky rectifier diode 40v 20a p600 diotec sbx2040 the b sbx2040 b is a 40v 20a 2nd generation bypass schottky rectifier diode that is ideal for use with solar modules comes in an axial p600 package diotec sbx2040 schottky barrier rectifier diode 40v 20a p600