An electrical device like this requires a reverse leakage current of 3μA @ 9.1V.While the device is operating, the maximum voltage - Zener (Nom) is reduced to 12.05V.For operation, diode reaches 1.2V @ 200mA at the maximum voltage - Forward (Vf).
BZD27C12PHRUG Features
reverse leakage current of 3μA @ 9.1V 3μA @ 9.1V is the maximum voltage (Tol)
BZD27C12PHRUG Applications
There are a lot of Taiwan Semiconductor Corporation BZD27C12PHRUG applications of zener single diodes.