Bourns Inc. Ferro Techniek BV
KOA Speer Electronics Inc. (KOA Corporation)
Panasonic Corporation
Rohm Semiconductor GmbH
Samsung Electronics Co. Ltd. TE Connectivity Ltd
Thermo Heating Elements LLC
Vishay Intertechnology Inc. Watlow Electric Manufacturing Co. W?rth Elektronik GmbH & Co. KG. YAGEO Corp. etc.