Datasheets indicate 1.25 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 400 V.
BYM12-400-E3/76 Features
the forward peak voltage is 1.25
BYM12-400-E3/76 Applications
There are a lot of Vishay BYM12-400-E3/76 applications of RF diodes.