It is necessary to supply this electrical device with a reverse leakage current of 50nA @ 39.2V.In operation, the maximum voltage - Zener (Nom) is set to 56V.For the device to operate, the maximum forward voltage (Vf) 900mV @ 10mA must be supplied.
BZT52-B56X Features
reverse leakage current of 50nA @ 39.2V 50nA @ 39.2V is the maximum voltage (Tol)
BZT52-B56X Applications
There are a lot of Nexperia USA Inc. BZT52-B56X applications of zener single diodes.