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Shortcomings of Schottky diodes

The biggest drawback of Schottky diodes is their low reverse bias voltage

The reverse leakage current is too large. For example, the Schottky diode made of silicon and metal, the rated withstand voltage of the reverse bias voltage is only 50V at the maximum, and the reverse leakage current value is a positive temperature characteristic, which tends to increase rapidly with the temperature rising. In practical design, attention should be paid to the worry of Thermal runaway. To avoid the above issues, the reverse bias of Schottky diodes in actual use will be much smaller than their rated value. However, the technology of Schottky diodes has also made progress, with a maximum reverse bias rating of 200V.