The reverse leakage current needed to power this electric device is 5μA @ 38.8V.As part of the operation, the maximum voltage - Zener (Nom) is reduced to 51V.
1N4757A R1G Features
reverse leakage current of 5μA @ 38.8V 5μA @ 38.8V is the maximum voltage (Tol)
1N4757A R1G Applications
There are a lot of Taiwan Semiconductor Corporation 1N4757A R1G applications of zener single diodes.