An electrical device like this requires a reverse leakage current of 5μA @ 25.1V.While the device is operating, the maximum voltage - Zener (Nom) is reduced to 33V.
SML4752HE3_A/H Features
reverse leakage current of 5μA @ 25.1V 5μA @ 25.1V is the maximum voltage (Tol)
SML4752HE3_A/H Applications
There are a lot of Vishay Semiconductor Diodes Division SML4752HE3_A/H applications of zener single diodes.