Junior Member level 3
maybe, anybody know why metallized polyster film capacitor is better than ceramic capacitor. I want to make main filter so I want to know why?
flatulent said:Making your own mains filter is dangerous. You could start a fire or electrocute yourself with the wrong design. It is better to buy one. If you insist on making your own, you need to get capacitors rated as X and Y use. X is line to line and Y is line to ground/earth.
It may be any one of them provided the capacitance, and the volatge ratings are same as mentioned or more than that. Generally polyester capacitors are used in Electrical filter deisgns due to thier high voltage capacities. Cheerspcwortex said:I make this main filter. I don't know in this scheme are ceramic or metallized polyester film capacitor or maybe it is other capacitor?