EMI (ElectroMagnetic Interference) Filters are L-C filters that consist of a ferrite core and an MLCC. EMI Filters suppress electromagnetic noise.

The FCC has requirements (noise regulations) that limit the amount of noise that a device can emit, EMI Filters are used to help devices fall within government noise limits.

Panasonic EMI Filters are available in Surface Mount packages that are highly effective in noise suppression and data integrity preservation applications.