The reverse leakage current needed to power this electric device is 5μA @ 15.2V.As part of the operation, the maximum voltage - Zener (Nom) is reduced to 20V.
1N968B_T50A Features
reverse leakage current of 5μA @ 15.2V 5μA @ 15.2V is the maximum voltage (Tol)
1N968B_T50A Applications
There are a lot of ON Semiconductor 1N968B_T50A applications of zener single diodes.