The 100V/10uf capacitor can be replaced with a 250V/10UF capacitor. The simple summary is that a capacitor with a high withstand voltage can replace a capacitor with a low withstand voltage, and a capacitor with a low withstand voltage cannot replace a capacitor with a high withstand voltage.

Withstand voltage value is 250V capacitor▼

100V and 250V are the withstand voltage values ​​of capacitors, which means that if capacitors are used above this voltage, the capacitors are prone to bulging or explosion. In fact, due to differences in workmanship, some capacitors with a withstand voltage of 100V below 100V will have bulging, and some will also appear to be higher than 100V and can be used normally.

Withstand voltage value is 100V capacitor▼

In the replacement process, for electrolytic capacitors with polarity. It is necessary to distinguish its positive and negative poles. If the electrolytic capacitors connected to the circuit are connected reversely. Not only will the circuit not work properly, but also some dangers. I have seen the power of a capacitor explode, and it is indeed quite large.

The new aluminum electrolytic capacitor, the long pin is its positive pole, and the short pin is its negative pole. If the pin has been cut and cannot be distinguished, you can also observe its appearance. The white side is the negative electrode of the capacitor. The circuit board will also be marked with the positive and negative symbols of the capacitor, which requires special attention.

Replacing a capacitor with a higher withstand voltage value will make the circuit work more stable. Take the RC step-down LED driver as an example. Choose a capacitor with a high withstand voltage value to avoid the insufficient withstand voltage value of the capacitor or the fluctuation of the grid voltage. The capacitor is damaged.

Different capacitors have different uses, so you need to choose a suitable capacitor according to your own use.