An electrical device such as this requires reverse leakage current of 100nA @ 8V.During operation, the maximum voltage - Zener (Nom) is reduced to 13V volts.As soon as the maximum voltage - Forward (Vf) is supplied, it reaches 900mV @ 10mA V.
BZT52-B13X Features
reverse leakage current of 100nA @ 8V 100nA @ 8V is the maximum voltage (Tol)
BZT52-B13X Applications
There are a lot of Nexperia USA Inc. BZT52-B13X applications of zener single diodes.