In the datasheets, 1@1A is stated as the peak forward voltage.In order to operate efficiently, this device should have a peak RMS reverse voltage range of 280.The maximum peak reverse voltage for this device is 400 V, according to the applicable device specifications.
W04 Features
the forward peak voltage is 1@1A the peak RMS reverse voltage range of 280
W04 Applications
There are a lot of EIC Semiconductor W04 applications of RF diodes.