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How to Indicate Placement Orientation of LED on Your Boards - Printed Circuit Board Manufacturing & PCB Assembly - RayMing
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![SMD LED polarity marking: is the cathode marking standardized? - Electrical Engineering Stack Exchange SMD LED polarity marking: is the cathode marking standardized? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/1TP3Z.gif)
SMD LED polarity marking: is the cathode marking standardized? - Electrical Engineering Stack Exchange
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Determining LED Polarity - Optoelectronics - Electronic Component and Engineering Solution Forum - TechForum │ Digi-Key
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