An electrical device like this requires a reverse leakage current of 1μA @ 2V.While the device is operating, the maximum voltage - Zener (Nom) is reduced to 5.75V.For operation, diode reaches 900mV @ 10mA at the maximum voltage - Forward (Vf).
BZX84C5V6_S00Z Features
reverse leakage current of 1μA @ 2V 1μA @ 2V is the maximum voltage (Tol)
BZX84C5V6_S00Z Applications
There are a lot of ON Semiconductor BZX84C5V6_S00Z applications of zener single diodes.