It is necessary to supply this electrical device with a reverse leakage current of 5μA @ 9.9V.Reverse leakage current reaches a maximum of 5μA.In operation, the maximum voltage - Zener (Nom) is set to 13V.The design flexibility of this device is extremely high since its zener current is 19mA.If you want this device to work properly, you should set the peak reverse voltage to 5μA.
1N4743A Features
reverse leakage current of 5μA @ 9.9V 5μA @ 9.9V is the maximum voltage (Tol) Reverse leakage current reaches 5μA the zener current of 19mA
1N4743A Applications
There are a lot of ON Semiconductor 1N4743A applications of zener single diodes.