The peak forward voltage is 0.45 according to the datasheets.This device consumes about 1 continuous forward current at any given time.To operate, a DC reverse voltage less than 20 must be used.
SS12LSHRQG Features
the forward peak voltage is 0.45
SS12LSHRQG Applications
There are a lot of Taiwan Semiconductor SS12LSHRQG applications of RF diodes.