Datasheets indicate 0.5 as the peak forward voltage.RF diode consumes about 1 continuous forward current at any given time.RF diode must be operated wRF diodeh a DC reverse voltage less than 40 V.
SGL41-40-E3/46 Features
the forward peak voltage is 0.5
SGL41-40-E3/46 Applications
There are a lot of Vishay SGL41-40-E3/46 applications of RF diodes.