What is the self-resonant frequency (SRF) of a decoupling capacitor, and why is it important?
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A
The frequency at which capacitance is maximized; used to select the largest capacitor
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B
The frequency at which capacitive and inductive reactances cancel, making the component appear purely resistive; effective decoupling only occurs below SRF
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C
The frequency at which the capacitor fails permanently
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D
The frequency at which ESR is minimized