An electrical device like this requires a reverse leakage current of 10μA @ 2V.While the device is operating, the maximum voltage - Zener (Nom) is reduced to 5.6V.For operation, diode reaches 1.2V @ 200mA at the maximum voltage - Forward (Vf).
BZD27B5V6P-HE3-18 Features
reverse leakage current of 10μA @ 2V 10μA @ 2V is the maximum voltage (Tol)
BZD27B5V6P-HE3-18 Applications
There are a lot of Vishay Semiconductor Diodes Division BZD27B5V6P-HE3-18 applications of zener single diodes.