EMI Filter CW1B-1A-L 6A Power Purification Lead Type Single Phase AC Power Filter Product Overview A lead-type single-phase AC power filter is a compact electronic device designed to suppress electromagnetic interference (EMI) and radio-frequency interference (RFI) in single-phase AC power lines. It features integrated leads for easy installation, typically filtering noise in both differential-mode (line-to-line) and common-mode (line-to-ground) to ensure stable power supply