Diotec sb1540 bypass axial schottky barrier rectifier diode 40v 15a p600 diotec sb1540 the b sb1540 b is a 40v 15a schottky rectifier diode that is ideal for use as a bypass diode for solar modules comes in an axial p600 package diotec sb1540 schottky barrier rectifier diode 40v 15a p600