It is necessary to supply this electrical device with a reverse leakage current of 100nA @ 17V.A voltage of 5% indicates the maximum voltage (Tol) that can be supplied.This device can only be operated when the working test voltage is set to 5.6mA.If you want this device to work properly, you should set the peak reverse voltage to 100nA.
MMSZ5251B-E3-18 Features
reverse leakage current of 100nA @ 17V 100nA @ 17V is the maximum voltage (Tol) the working test voltage to 5.6mA minimal dynamic impedance is 5.6mA
MMSZ5251B-E3-18 Applications
There are a lot of Vishay Semiconductor Diodes Division MMSZ5251B-E3-18 applications of zener single diodes.