The reverse leakage current needed to power this electric device is 100nA @ 8V.As part of the operation, the maximum voltage - Zener (Nom) is reduced to 12V.For its operation, the maximum voltage - Forward (Vf) 900mV @ 10mA is supplied.
BZX84W-B12F Features
reverse leakage current of 100nA @ 8V 100nA @ 8V is the maximum voltage (Tol)
BZX84W-B12F Applications
There are a lot of Nexperia USA Inc. BZX84W-B12F applications of zener single diodes.