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静电放电321：ESD321DYAR这个二极管的丝印为“1L8.”请问丝印1那端是阳极还是阴极？是否会存在批次不同，1端的极性不同的情况？

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Part Number: ESD321

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ESD321DYAR这个二极管的丝印为“1L8.”请问丝印1那端是阳极还是阴极？是否会存在批次不同，1端的极性不同的情况？

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    Guru 283290 points

    There should be a dot or line to indicate pin 1. Can you show a photo?

    Anyway, when the text is upright, pin 1 (GND = anode) should be at the left. And p. 15 of the datasheet says that pin 1 is in quadrant 1 in the reel.