The peak forward voltage is 1.3 in the datasheets.A continuous forward current of about 3@Ta=55C is consumed by this device at all times.DC reverse voltage less than 1000 is required.
RG3M-E3/54 Features
the forward peak voltage is 1.3
RG3M-E3/54 Applications
There are a lot of Vishay RG3M-E3/54 applications of RF diodes.