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How to Choose Capacitor Size More Accurately(II)

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(2) Reasonably determine the capacitance and allowable deviation of the capacitor. In the low-frequency coupling and decoupling circuits, the capacitance is generally not strict, as long as according to the calculated value of a slightly larger capacity can be selected. In the circuits such as timing circuit, oscillation circuit and tone control circuit, the capacitance is very strict, so the nominal value of capacitance should be as close as possible to the calculated, and the capacitor with high accuracy should be chosen as far as possible. In some special circuits, the capacitance is required to be very accurate. In this case, high precision capacitors with allowable deviations in the range of ±0.1 ~ ±0.5% should be selected.


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