SUMIDA Neumarkt in der Oberpfalz is a specialized development and manufacturing site for custom magnetic components. These include inductors, chokes, and transformers used in demanding electronic systems.

The focus is on applications in the automotive industry and industrial power electronics. Key areas include vehicle electrification, modern power supply systems, and the efficient conversion and filtering of electrical energy.

Another core competence is the development of EMC/EMI solutions that help protect electronic systems from interference while ensuring high levels of energy efficiency.