An electrical device like this requires a reverse leakage current of 50μA @ 1V.While the device is operating, the maximum voltage - Zener (Nom) is reduced to 3V.For operation, diode reaches 1V @ 10mA at the maximum voltage - Forward (Vf).
MAZ80300HL Features
reverse leakage current of 50μA @ 1V 50μA @ 1V is the maximum voltage (Tol)
MAZ80300HL Applications
There are a lot of Panasonic Electronic Components MAZ80300HL applications of zener single diodes.