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How does an ambient temperature rise affect the transistor breakdown voltage?

At above a certain voltage, the amount of current that flows in a transistor increases sharply, creating breakdown conditions. Unless the voltage is lowered, prolonged exposure to the breakdown conditions damages the device permanently because of self-heating. Generally, the maximum leakage current is guaranteed when a voltage lower than the breakdown voltage (absolute maximum rated voltage) is applied. An increase in ambient temperature leads to an increase in leakage current, but does not affect the breakdown voltage significantly.

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