An electrical device such as this requires reverse leakage current of 2μA @ 3V.During operation, the maximum voltage - Zener (Nom) is reduced to 5.6V volts.As soon as the maximum voltage - Forward (Vf) is supplied, it reaches 1.2V @ 200mA V.
1N5994B_T50A Features
reverse leakage current of 2μA @ 3V 2μA @ 3V is the maximum voltage (Tol)
1N5994B_T50A Applications
There are a lot of ON Semiconductor 1N5994B_T50A applications of zener single diodes.