An electrical device such as this requires reverse leakage current of 500nA @ 27V.During operation, the maximum voltage - Zener (Nom) is reduced to 39V volts.As soon as the maximum voltage - Forward (Vf) is supplied, it reaches 1.2V @ 10mA V.
BZX85C39 R0G Features
reverse leakage current of 500nA @ 27V 500nA @ 27V is the maximum voltage (Tol)
BZX85C39 R0G Applications
There are a lot of Taiwan Semiconductor Corporation BZX85C39 R0G applications of zener single diodes.