An electrical device like this requires a reverse leakage current of 40nA @ 18.7V.During reverse leakage, the maximum current reaches 40nA.For operation, diode reaches 1.5V @ 200mA at the maximum voltage - Forward (Vf).
TLZ20D-GS08 Features
reverse leakage current of 40nA @ 18.7V 40nA @ 18.7V is the maximum voltage (Tol) Reverse leakage current reaches 40nA
TLZ20D-GS08 Applications
There are a lot of Vishay Semiconductor Diodes Division TLZ20D-GS08 applications of zener single diodes.