An electrical device like this requires a reverse leakage current of 3μA @ 6.5V.During reverse leakage, the maximum current reaches 3μA.For operation, diode reaches 1.1V @ 200mA at the maximum voltage - Forward (Vf).
1N5237B-TR Features
reverse leakage current of 3μA @ 6.5V 3μA @ 6.5V is the maximum voltage (Tol) Reverse leakage current reaches 3μA
1N5237B-TR Applications
There are a lot of Vishay Semiconductor Diodes Division 1N5237B-TR applications of zener single diodes.