EMI suppression filters are highly versatile EMI mitigation devices. While they may be intended and specified for the suppression of conducted emissions, they can also be utilized for mitigating and enhancing a devices immunity. Valuable in both the design and troubleshooting phases of product development, various EMI filter designs can be incorporated into a device at the board level, assembly level, or even as an aftermarket retrofit. Lastly, EMI filters may even be customized by a manufacturer to
serve the unique needs of a wide range of applications, and are often the last hope for product designers struggling to meet EMC testing requirements and reduce the noise from interfering equipment.