An electrical device like this requires a reverse leakage current of 500nA @ 69.2V.While the device is operating, the maximum voltage - Zener (Nom) is reduced to 91V.For operation, diode reaches 1.2V @ 200mA at the maximum voltage - Forward (Vf).
2EZ91DE3/TR12 Features
reverse leakage current of 500nA @ 69.2V 500nA @ 69.2V is the maximum voltage (Tol)
2EZ91DE3/TR12 Applications
There are a lot of Microsemi Corporation 2EZ91DE3/TR12 applications of zener single diodes.