An electrical device like this requires a reverse leakage current of 1μA @ 5V.While the device is operating, the maximum voltage - Zener (Nom) is reduced to 7.5V.
BZX84B7V5LFHT116 Features
reverse leakage current of 1μA @ 5V 1μA @ 5V is the maximum voltage (Tol)
BZX84B7V5LFHT116 Applications
There are a lot of ROHM Semiconductor BZX84B7V5LFHT116 applications of zener single diodes.