The reverse leakage current needed to power this electric device is 100nA @ 15V.As part of the operation, the maximum voltage - Zener (Nom) is reduced to 22V.
BZX84B22VLFHT116 Features
reverse leakage current of 100nA @ 15V 100nA @ 15V is the maximum voltage (Tol)
BZX84B22VLFHT116 Applications
There are a lot of ROHM Semiconductor BZX84B22VLFHT116 applications of zener single diodes.