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チップオンボード（COB）LEDの基本 | DigiKey
CITILED Standard COB Series Version6 | CITIZEN ELECTRONICS CO.,LTD.
Brief Introduction of Chip On Board (COB) Process | ExPlus Co., Ltd.
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CITILED Standard COB Series Version6 | CITIZEN ELECTRONICS CO.,LTD.
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Chip on board - Wikipedia
COB(Chip On Board) タイプのLEDの特徴・メリットについて説明します。 | ZIGEN LIGHITNG SOLUTION LED
