The peak forward voltage is 1.75 in the datasheets.A continuous forward current of about 5 is consumed by this device at all times.DC reverse voltage less than 500 is required.
UG5HT-E3 Features
the forward peak voltage is 1.75
UG5HT-E3 Applications
There are a lot of Vishay UG5HT-E3 applications of RF diodes.