An electrical device such as this requires reverse leakage current of 5μA @ 9.9V.During operation, the maximum voltage - Zener (Nom) is reduced to 13V volts.
SML4743AHE3_A/H Features
reverse leakage current of 5μA @ 9.9V 5μA @ 9.9V is the maximum voltage (Tol)
SML4743AHE3_A/H Applications
There are a lot of Vishay Semiconductor Diodes Division SML4743AHE3_A/H applications of zener single diodes.