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Which outcome occurs when silicon-controlled rectifier trigger circuit exceeds its maximum gate current rating?

A)Permanent damage to gate junction
B)Increased forward voltage drop
C)Decreased holding current threshold
D)Spontaneous triggering at low voltages

💡 Explanation

When the trigger circuit exceeds maximum gate current, ohmic heating occurs in the gate junction of the SCR because of excessive current density leading to thermal runaway. Therefore, permanent damage occurs, rather than other effects arising from voltage stress reduction or parameter shift which require different stress conditions.

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