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← TechnologyWhich consequence results when reverse leakage current exceeds thermal runaway limits in a power diode?
A)Avalanche breakdown and device failure✓
B)Increased forward voltage drop occurs
C)Reduced switching speed results
D)Increased junction capacitance is observed
💡 Explanation
Avalanche breakdown occurs because the increasing leakage current generates excessive heat, leading to a further rise in current via positive feedback: the thermal runaway mechanism. Therefore, the diode self-destructs, rather than simply changing other parameters if properly heatsinked.
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