According to the datasheets, the peak forward voltage is 0.98 volts.RF diode consumes approximately 1.5 in continuous forward current at any given moment.
1R5DL41A(N,Q) Features
the forward peak voltage is 0.98
1R5DL41A(N,Q) Applications
There are a lot of Toshiba 1R5DL41A(N,Q) applications of RF diodes.