According to the datasheets, the peak forward voltage is 1.5@9A volts.RF diode consumes approximately 3@Ta=55C in continuous forward current at any given moment.For operation, a DC reverse voltage less than 660 must be applied.
GRP-A-DATA-JANTX1N5420 Features
the forward peak voltage is 1.5@9A
GRP-A-DATA-JANTX1N5420 Applications
There are a lot of Microsemi GRP-A-DATA-JANTX1N5420 applications of RF diodes.