The datasheets state that the peak forward voltage is 0.45.A continuous forward current of about 1@Ta=90C can be consumed by this device at any given time.In order to operate, you will need a DC reverse voltage less than 20.
1N5817-BP Features
the forward peak voltage is 0.45
1N5817-BP Applications
There are a lot of Micro Commercial Components 1N5817-BP applications of RF diodes.