According to the datasheets, the peak forward voltage is 1.5@9A volts.RF diode consumes approximately 3 in continuous forward current at any given moment.For operation, a DC reverse voltage less than 400 must be applied.
1N5418-E3/54 Features
the forward peak voltage is 1.5@9A
1N5418-E3/54 Applications
There are a lot of Vishay 1N5418-E3/54 applications of RF diodes.