The datasheets state that the peak forward voltage is 0.975.A continuous forward current of about 2.5 can be consumed by this device at any given time.In order to operate, you will need a DC reverse voltage less than 160.
GRP-A-DATA-JANS1N5806US Features
the forward peak voltage is 0.975
GRP-A-DATA-JANS1N5806US Applications
There are a lot of Microsemi GRP-A-DATA-JANS1N5806US applications of RF diodes.