SUMIDA is a traditional manufacturer of passive electronic components located in Neumark i.d. OPF, Germany. In 2009 the company changed its name into SUMIDA Components GmbH. The former STELCO GmbH founded in 1999 took over parts of the production and distribution activities of Stettner GmbH & Co in 2000. Since 2005 they are a member of the Japanese SUMIDA Group.

At its plant , SUMIDA Components produces a wide range of ceramic-based passive electronic and piezoceramic components. State-of-the-art production equipment and an experienced and motivated team of technicians guarantee the high quality of SUMIDA Components products. The wide selection of standard products is complemented by individual, custom specific problem solutions.