Datasheets indicate 1.7 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 1000 V.
US1M-E3/11T Features
the forward peak voltage is 1.7
US1M-E3/11T Applications
There are a lot of Vishay US1M-E3/11T applications of RF diodes.