An electrical device like this requires a reverse leakage current of 500nA @ 9.9V.While the device is operating, the maximum voltage - Zener (Nom) is reduced to 13V.
2M13Z B0G Features
reverse leakage current of 500nA @ 9.9V 500nA @ 9.9V is the maximum voltage (Tol)
2M13Z B0G Applications
There are a lot of Taiwan Semiconductor Corporation 2M13Z B0G applications of zener single diodes.