An electrical device like this requires a reverse leakage current of 5μA @ 12.2V.While the device is operating, the maximum voltage - Zener (Nom) is reduced to 16V.
SMZJ3794BHM3/I Features
reverse leakage current of 5μA @ 12.2V 5μA @ 12.2V is the maximum voltage (Tol)
SMZJ3794BHM3/I Applications
There are a lot of Vishay Semiconductor Diodes Division SMZJ3794BHM3/I applications of zener single diodes.