The datasheets state that the peak forward voltage is 1.1.In this device, the reverse voltage range can reach a maximum of 700, which makes it highly efficient.
TS4B07G D2 Features
the forward peak voltage is 1.1 the peak RMS reverse voltage range of 700
TS4B07G D2 Applications
There are a lot of Taiwan Semiconductor TS4B07G D2 applications of RF diodes.