It is necessary to supply this electrical device with a reverse leakage current of 50nA @ 21V.In operation, the maximum voltage - Zener (Nom) is set to 30V.For the device to operate, the maximum forward voltage (Vf) 900mV @ 10mA must be supplied.
BZT52-B30J Features
reverse leakage current of 50nA @ 21V 50nA @ 21V is the maximum voltage (Tol)
BZT52-B30J Applications
There are a lot of Nexperia USA Inc. BZT52-B30J applications of zener single diodes.