Bel Fuse manufactures electronic components for networking, telecommunications, high-speed data transmission, and automotive and consumer electronics. Its magnetic products include discrete components, power transformers, and MagJack connector modules. It also offers power conversion modules for a variety of applications. Bel Fuse's miniature, micro, and surface-mounted fuses create supplementary circuit protection for televisions, VCRs, computers, and telephones. The company also makes passive jacks, plugs, and cable assemblies. Top customers include Hon Hai and Flextronics. Asian customers account for more than half of sales.