The reverse leakage current needed to power this electric device is 100nA @ 39V.As part of the operation, the maximum voltage - Zener (Nom) is reduced to 51V.
ACZRM5262B-HF Features
reverse leakage current of 100nA @ 39V 100nA @ 39V is the maximum voltage (Tol)
ACZRM5262B-HF Applications
There are a lot of Comchip Technology ACZRM5262B-HF applications of zener single diodes.