Japanese manufacturer of electronic passive components founded in 1940 in Tokyo. KOA is one of the biggest manufacturers of SMD resistors in the world. Its range of products includes low temperature ceramic (LTCC), resistors, temperature sensors, inductors, fuses and varistors.


KOA has 3,600 employees worldwide, 1,100 of which are located in Japan. It has 26 manufacturing facilities.

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  • 85% of all KOA’s sales are from resistors
  • 23 factories worldwide +4000 employees
  • High investment in product innovation
  • ISO9001, ISO/TS16949, ISO14001 certifications
  • #1 in resistor sales in 2017