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 5.6V.For operation, diode reaches 900mV @ 10mA at the maximum voltage - Forward (Vf).
SZMM5Z5V6ST5G Features
reverse leakage current of 1μA @ 2V 1μA @ 2V is the maximum voltage (Tol)
SZMM5Z5V6ST5G Applications
There are a lot of ON Semiconductor SZMM5Z5V6ST5G applications of zener single diodes.