The reverse leakage current for this electrical device should be 1μA @ 18.2V.5% indicates the maximum possible voltage (Tol) of 5%.While operating, the maximum voltage - Zener (Nom) is reduced to 24VV.This device should be operated at 10.5mA on the working test voltage.
1SMA4749 R3G Features
reverse leakage current of 1μA @ 18.2V 1μA @ 18.2V is the maximum voltage (Tol) the working test voltage to 10.5mA minimal dynamic impedance is 10.5mA
1SMA4749 R3G Applications
There are a lot of Taiwan Semiconductor Corporation 1SMA4749 R3G applications of zener single diodes.