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← ScienceWhich consequence results when exceeding avalanche diode reverse voltage?
A)Permanent junction dielectric breakdown✓
B)Increased signal propagation delay
C)Reduced energy gap for holes
D)Increased device switching capacitance
💡 Explanation
Exceeding reverse voltage causes dielectric breakdown because impact ionization creates electron–hole pairs, leading to significant current flow and joule heating. Therefore, the diode experiences irreversible damage, rather than simply capacitance changes or delay increase.
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