An electrical device such as this requires reverse leakage current of 1μA @ 39V.During operation, the maximum voltage - Zener (Nom) is reduced to 51V volts.As soon as the maximum voltage - Forward (Vf) is supplied, it reaches 1.2V @ 200mA V.
BZD27B51P-E3-18 Features
reverse leakage current of 1μA @ 39V 1μA @ 39V is the maximum voltage (Tol)
BZD27B51P-E3-18 Applications
There are a lot of Vishay Semiconductor Diodes Division BZD27B51P-E3-18 applications of zener single diodes.