20A Power Filter Purifier EMI High Frequency and Power Filter Board Ready Introduction The power filter is an electrical device that effectively filters out frequencies with a certain frequency in the power line or frequencies outside the frequency. By connecting a power filter to the power line, a power signal of a certain frequency is obtained, or a power signal after a certain frequency is eliminated. With this property of the power supply filter, a square wave group or composite noise passing through the power supply filter can be converted into a sine wave of a certain frequency. The power supply filter is a two-way passive network. It has a power supply at one end and a load at the other end. The internal circuit of the power filter, the principle of the power filter is an impedance adaptive network: the greater the impedance adaptation on the input and output sides of the power filter and on the supply and load sides, the more effective the attenuation of electromagnetic interference! This 20A power supply filter current is as high as 4400W and it works for a long time at 2500W~3000W. The diameter of the electromode coil is 1.4mm and the height is 31mm. Maximum current 20A, double-sided 1.6 tinned sheet! Parameter: Voltage: AC 0V~220V Current: 20A Size: (W)35*(L)148*(H)35mm Electromode coil diameter: 1.4mm Package includes: 1pc 20A EMI Power Filter Board