An electrical device like this requires a reverse leakage current of 1μA @ 6.8V.While the device is operating, the maximum voltage - Zener (Nom) is reduced to 9.1V.For operation, diode reaches 1.2V @ 200mA at the maximum voltage - Forward (Vf).
BZG05C9V1-HM3-18 Features
reverse leakage current of 1μA @ 6.8V 1μA @ 6.8V is the maximum voltage (Tol)
BZG05C9V1-HM3-18 Applications
There are a lot of Vishay Semiconductor Diodes Division BZG05C9V1-HM3-18 applications of zener single diodes.