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What is the upper limit voltage of the power supply line you want to protect?

April 26, 2017limit line power protect supply Upper voltage

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What is the upper limit voltage of the power supply line you want to protect?

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To determine the breakdown voltage, select an NNCD diode with a lower limit voltage that is higher than the higher limit of the power supply line. In the case of a 5 V power supply, the NNCD 6.8V should be suitable.