According to the datasheets, the peak forward voltage is 1.7 volts.RF diode consumes approximately 3@Ta=55C in continuous forward current at any given moment.For operation, a DC reverse voltage less than 600 must be applied.
HER306 R0 Features
the forward peak voltage is 1.7
HER306 R0 Applications
There are a lot of Taiwan Semiconductor HER306 R0 applications of RF diodes.