转帖个人觉得比较详细了，特此转帖1N4148 是开关二极管，耐压100V，电流150mA，反向恢复速度快1N5819 是肖特基二极管，耐压40V，电流1A ,正向压降低，反向恢复时间在10ns左右
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1N4148
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1N4148 TAP
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