Würth Elektronik
Marktech Optoelectronics
OSRAM Opto Semiconductors Inc.
Interlight
Kingbright
Vishay Semiconductor Opto Division
NTE Electronics, Inc
Opto Diode Corp
Rohm Semiconductor
TT Electronics/Optek Technology
SETi/Seoul Viosys
Everlight Electronics Co Ltd
Advanced Photonix
Bivar Inc.
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