An electrical device like this requires a reverse leakage current of 500nA @ 4V.While the device is operating, the maximum voltage - Zener (Nom) is reduced to 7.26V.
YFZVFHTR7.5B Features
reverse leakage current of 500nA @ 4V 500nA @ 4V is the maximum voltage (Tol)
YFZVFHTR7.5B Applications
There are a lot of ROHM Semiconductor YFZVFHTR7.5B applications of zener single diodes.