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 1.1V @ 200mA at the maximum voltage - Forward (Vf).
BZV55C5V6 Features
reverse leakage current of 1μA @ 2V 1μA @ 2V is the maximum voltage (Tol)
BZV55C5V6 Applications
There are a lot of Microsemi Corporation BZV55C5V6 applications of zener single diodes.