An electrical device like this requires a reverse leakage current of 3μA @ 6.5V.While the device is operating, the maximum voltage - Zener (Nom) is reduced to 8.2V.For operation, diode reaches 1.1V @ 200mA at the maximum voltage - Forward (Vf).
1N5237B TR PBFREE Features
reverse leakage current of 3μA @ 6.5V 3μA @ 6.5V is the maximum voltage (Tol)
1N5237B TR PBFREE Applications
There are a lot of Central Semiconductor Corp 1N5237B TR PBFREE applications of zener single diodes.