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Bourns - 8 Experts on Magnetic Solutions for Next-Generation Applications

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"Designing for EMC can help ensure that radiated H-fields from magnetic components are minimal and do not cause any disturbances on nearby power lines or boards." Bhanu Prakash Villuri Lead Project Engineer, Stanley Black & Decker, Inc. Equipped with the knowledge of the noise characteristics and the necessary impedance, designers can then make an appropriate selection of magnetics for achieving EMC compliance. A magnetic component that is designed with EMC applications in mind often features detailed measured curves in its datasheet to define its behavior over frequency. Trends such as impedance and attenuation versus frequency are paramount to the design and selection of magnetic components for EMC. Bourns helps designers achieve EMC compliance by doing the following: • Providing components with well-documented impedance and attenuation versus frequency curves • Working directly with customers to help them figure out the correct magnetic components needed for their specific type of EMC • Balancing design-related trade-offs such as performance and cost versus area 15 I Magnetic Components for EMC Compliance For a magnetic component to perform well as a filter or common mode choke, it needs to have a high impedance over a wide frequency range. This is the key for magnetics in EMC applications. Cathal Sheehan Senior Technical Market Manager, Bourns, Inc.

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