Low-Pass Filter

It is mandatory to switch a low-pass filter to suppress the harmonics and comply with the legal requirements. Surely everyone has heard of Murphy! My own LPF design could not be opened and two weeks of work were for nothing. I decided to buy LPF boards from UT2FW so that it could go on smoothly. In principle not bad, but 500 V Mica Silva capacitors are not enough. If you calculate the peak voltage, you find out that at 1 kW and a VSWR of 3:1 with 1000V they are still much too tight. I could find ceramic capacitors with 3kV from class 1 C0G which have a very low ESR. Finally, the capacitor must not only be voltage resistant, but also current resistant!