An electrical device like this requires a reverse leakage current of 200nA @ 7V.For operation, diode reaches 900mV @ 10mA at the maximum voltage - Forward (Vf).
SZMM5Z9V1ST1G Features
reverse leakage current of 200nA @ 7V 200nA @ 7V is the maximum voltage (Tol)
SZMM5Z9V1ST1G Applications
There are a lot of ON Semiconductor SZMM5Z9V1ST1G applications of zener single diodes.