switching power supply EMI Filter

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hello all
i have circuit 220v ac 5v dc 2a below pic.
if ignore emi filter , work?
i mean if change emi filter capacitor, have 5v 2a in output?
tnx

yes.
the filter stops hash being thrown onto mains,
but stops mains spikes getting circuit.
one day fridge turn on, , circuit goes in smoke.

i sense beginners level in electronics.
if so, stay away mains connected circuits.
you might kill else.
leo..


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