The peak forward voltage on the datasheets is 0.55.Normally, this device consumes about 1@Ta=90C of continuous forward current.During operation, DC reverse voltage must not exceed 30.
1N5818-T/R Features
the forward peak voltage is 0.55
1N5818-T/R Applications
There are a lot of Micro Commercial Components 1N5818-T/R applications of RF diodes.