The datasheets state that the peak forward voltage is 1.3.A continuous forward current of about 3 can be consumed by this device at any given time.In order to operate, you will need a DC reverse voltage less than 1000.
RS3M R7 Features
the forward peak voltage is 1.3
RS3M R7 Applications
There are a lot of Taiwan Semiconductor RS3M R7 applications of RF diodes.