An electrical device like this requires a reverse leakage current of 50nA @ 15.4V.During reverse leakage, the maximum current reaches 50nA.While the device is operating, the maximum voltage - Zener (Nom) is reduced to 22V.For operation, diode reaches 1.5V @ 200mA at the maximum voltage - Forward (Vf).
NZX22C,133 Features
reverse leakage current of 50nA @ 15.4V 50nA @ 15.4V is the maximum voltage (Tol) Reverse leakage current reaches 50nA
NZX22C,133 Applications
There are a lot of Nexperia USA Inc. NZX22C,133 applications of zener single diodes.