According to the datasheets, the peak forward voltage is 1.15 volts.RF diode consumes approximately 1.5 in continuous forward current at any given moment.For operation, a DC reverse voltage less than 100 must be applied.
S2B-HE3/2 Features
the forward peak voltage is 1.15
S2B-HE3/2 Applications
There are a lot of Vishay S2B-HE3/2 applications of RF diodes.