An electromagnetic interference (EMI) filter is the primary tool available to the designer of electronic equipment to control conducted EMI both into the equipment (potential equipment malfunction) and out of the equipment (potential interference to other nearby equipment). By controlling the conducted interference, an EMI Filter may also reduce the levels of radiated emissions. EMI products allow the desired signal to pass while attenuating the unwanted interference. Electromagnetic interference levels are regulated by several major Safety Agencies and Standards Organizations. As these international regulations change, designers must review and evaluate their filter solutions. Our EMI filter portfolio consists of board level shielding (BLS), filter accessories, unfiltered IEC inlets, modular jack filters, multi- function inlet filters (also known as Power Entry Modules), power line filters, single phase filters, 3 phase filters, and DC filters. We manufacture EMI filters through our Corcom product family.