KOA is one of the worldwide leading manufacturers of passive components and LTCC multilayer ceramic substrates. KOA's high quality component portfolio comprises RoHS compliant SMT and through hole products, i.e. resistors (thick and thin film technology chips, shunts), networks (high voltage divider and precision), thermistors (NTC, PTC, PT-sensors), fuses and fusible resistors, varistors, and LTCC substrates.