Bel Fuse Inc. (commonly known as Bel Group) is a global manufacturer of products that power, protect, and connect electronic circuits. Serving industries from networking and telecommunications to industrial, aerospace, and medical, Bel’s portfolio spans circuit protection devices, connectors, cable assemblies, discrete components, magnetics, and power conversion products.

Founded in 1949 and headquartered in Jersey City, New Jersey, Bel operates manufacturing, engineering, and distribution facilities across North America, Europe, and Asia. The company’s brands — including Signal Transformer, Cinch Connectivity Solutions, TRP Connector, and Bel Power Solutions — provide specialised expertise in their respective fields while contributing to Bel’s broader capability to deliver complete interconnect and power solutions.

Bel products are engineered for reliability in demanding applications, meeting rigorous industry standards for performance and safety. Its offerings range from high-current power supplies for data centres to compact connectors for aerospace and defence systems, as well as robust magnetics and transformers for industrial automation.

With a focus on customer collaboration, Bel supports both standard and custom designs, helping engineers solve electrical, mechanical, and environmental challenges in their projects. By combining decades of manufacturing experience with a global supply chain and engineering network, Bel positions itself as a trusted partner for companies requiring innovative, high-quality components that enable the next generation of electronic systems.