An electrical device such as this requires reverse leakage current of 100nA @ 10V.During operation, the maximum voltage - Zener (Nom) is reduced to 13V volts.As soon as the maximum voltage - Forward (Vf) is supplied, it reaches 1.3V @ 100mA V.
BZX55C13_T50A Features
reverse leakage current of 100nA @ 10V 100nA @ 10V is the maximum voltage (Tol)
BZX55C13_T50A Applications
There are a lot of ON Semiconductor BZX55C13_T50A applications of zener single diodes.