An electrical device such as this requires reverse leakage current of 5μA @ 152V.As soon as the maximum voltage - Forward (Vf) is supplied, it reaches 1.1V @ 200mA V.
1N992A Features
reverse leakage current of 5μA @ 152V 5μA @ 152V is the maximum voltage (Tol)
1N992A Applications
There are a lot of Microsemi Corporation 1N992A applications of zener single diodes.