Bel Fuse, Inc. engages in the design, manufacture, and marketing of products that power, protect, and connect electronic circuits. It operates through the following segments: Power Solutions and Protection, Connectivity Solutions, and Magnetic Solutions. The Power Solutions and Protection segment includes internal and external AC/DC power supplies, DC/DC converters and DC/AC inverters utilized in defense, commercial aerospace, industrial, networking and consumer applications. The Connectivity Solutions segment focuses on high speed and harsh environment copper and optical fiber connectors and integrated assemblies, providing connectivity solutions within the commercial aerospace, military communications, defense, network infrastructure, structured building cabling, and several industrial applications. The Magnetic Solutions segment is involved in integrating RJ45 connectors with discrete magnetic components to provide better performance and a more robust device, substantially reducing board space and optimizing performance. The company was founded by Elliot Bernstein in 1949 and is headquartered in West Orange, NJ.