An electrical device like this requires a reverse leakage current of 5μA @ 1.5V.While the device is operating, the maximum voltage - Zener (Nom) is reduced to 4.7V.For operation, diode reaches 1.4V @ 1A at the maximum voltage - Forward (Vf).
JAN1N6316D Features
reverse leakage current of 5μA @ 1.5V 5μA @ 1.5V is the maximum voltage (Tol)
JAN1N6316D Applications
There are a lot of Microsemi Corporation JAN1N6316D applications of zener single diodes.