The peak forward voltage is 5 in the datasheets.A continuous forward current of about 0.25@Ta=55C is consumed by this device at all times.DC reverse voltage less than 1400 is required.
GRP-A-DATA-JANTX1N3645 Features
the forward peak voltage is 5
GRP-A-DATA-JANTX1N3645 Applications
There are a lot of Microsemi GRP-A-DATA-JANTX1N3645 applications of RF diodes.