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According to the previous posts, the device failing conducted EMC tests in the 100 kHz to MHz range. It's impossible to guess the MHz interference level from the current waveform.
Consider that the limit values are below 60 dBµV (1 mV), respectively 20 µA into a 50 ohm load.
The spectrum measurement suggests that you want > 30 dB attenuation in the 100 kHz to 5 MHz range, in case of doubt both common and differential mode. A 33 mH choke might have too little effect in the MHz range.
Consider that the limit values are below 60 dBµV (1 mV), respectively 20 µA into a 50 ohm load.
The spectrum measurement suggests that you want > 30 dB attenuation in the 100 kHz to 5 MHz range, in case of doubt both common and differential mode. A 33 mH choke might have too little effect in the MHz range.