Diotec bidirectional axial transient voltage suppressors diotec bzw 06 33 b the bzw06 33b is a bidirectional axial leaded transient voltage suppression diode with a vwm of 333v and a nominal vbr of 39v designed to protect electronic circuits from voltage spikes and overvoltage faults diotec bzw06 33b suppresion diode 111a 39v