According to the datasheets, the peak forward voltage is 1.1.The maximum continuous forward current that this device consumes at any given time is about 3@Ta=50C.Diode can read a maximum output current voltage of 3 A using this device.
1N5408K Features
the forward peak voltage is 1.1 a maximum output current voltage of 3 A
1N5408K Applications
There are a lot of Diotec Semiconductor AG 1N5408K applications of RF diodes.