An electrical device like this requires a reverse leakage current of 2μA @ 3V.While the device is operating, the maximum voltage - Zener (Nom) is reduced to 3V.
JANTX1N4567AUR-1 Features
reverse leakage current of 2μA @ 3V 2μA @ 3V is the maximum voltage (Tol)
JANTX1N4567AUR-1 Applications
There are a lot of Microsemi Corporation JANTX1N4567AUR-1 applications of zener single diodes.