An electrical device like this requires a reverse leakage current of 3μA @ 2V.During reverse leakage, the maximum current reaches 3μA.For operation, diode reaches 1.5V @ 200mA at the maximum voltage - Forward (Vf).For full functionality, this device should have a reverse voltage peak of 3μA.
NZX4V7C,133 Features
reverse leakage current of 3μA @ 2V 3μA @ 2V is the maximum voltage (Tol) Reverse leakage current reaches 3μA
NZX4V7C,133 Applications
There are a lot of Nexperia USA Inc. NZX4V7C,133 applications of zener single diodes.