An electrical device like this requires a reverse leakage current of 5μA @ 42.6V.During reverse leakage, the maximum current reaches 5μA.While the device is operating, the maximum voltage - Zener (Nom) is reduced to 56V.Design flexibility is enhanced by its zener current of 5.4mA.
1N979B Features
reverse leakage current of 5μA @ 42.6V 5μA @ 42.6V is the maximum voltage (Tol) Reverse leakage current reaches 5μA the zener current of 5.4mA
1N979B Applications
There are a lot of ON Semiconductor 1N979B applications of zener single diodes.