Würth Elektronik
Kingbright
Vishay Semiconductor Opto Division
Broadcom Limited
SunLED
OSRAM Opto Semiconductors Inc.
Everlight Electronics Co Ltd
Lumex Opto/Components Inc.
TT Electronics/Optek Technology
Inolux
LITEON
Stanley Electric Co
QT Brightek (QTB)
Dialight
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