An electrical device such as this requires reverse leakage current of 5μA @ 1V.During operation, the maximum voltage - Zener (Nom) is reduced to 4.3V volts.As soon as the maximum voltage - Forward (Vf) is supplied, it reaches 1.2V @ 200mA V.
1N5229B_T26A Features
reverse leakage current of 5μA @ 1V 5μA @ 1V is the maximum voltage (Tol)
1N5229B_T26A Applications
There are a lot of ON Semiconductor 1N5229B_T26A applications of zener single diodes.