Using 10uf capacitor instead of 47uf capacitor has many functions, and different circuits have different functions. Examples mainly include the following points:

1. In the power filter circuit, the reduction of capacitor capacity will obviously reduce the filtering effect, increase the ripple voltage and make the output voltage drop unstable.

2. In the LC resonant circuit, the decrease of capacitance will increase the resonant frequency and affect the working characteristics of the circuit.

3. In the coupling circuit, the reduction of capacitance will distort the signal.

4. In the timer circuit, the setting time will be shortened due to the decrease of capacitance.