The peak forward voltage is 1.1 in the datasheets.A continuous forward current of about 1@Ta=75C is consumed by this device at all times.DC reverse voltage less than 600 is required.
1N4005/1 Features
the forward peak voltage is 1.1
1N4005/1 Applications
There are a lot of Vishay 1N4005/1 applications of RF diodes.