Can I use different voltage capacitor?
Yes, you can pick a higher voltage without problems. but getting the better quality 105 °C rated one as the others ones are 85 °C rated.
Can you use a 35V capacitor in place of an 25V?
In general, going from 25V to 35V won’t cause you a problem as long as the above parameters are comparable. Once you start getting above 35V, you’ll find less and less high-performance capacitors available (the majority of low ESR parts tend to be 25V or lower). The rating is a maximum voltage rating.
Can a capacitor be connected to more than one circuit?
They all must be rated for at least the voltage of your power supply. Conversely, you must not apply more voltage than the lowest voltage rating among the parallel capacitors. Capacitors connected in series will have a lower total capacitance than any single one in the circuit.
Is it better to put capacitors in series or series?
You can put capacitors in series, but that rarely works out better than getting the right cap in the first place. As Steven said, two of the same caps in series have double the voltage rating but half the capacitance. You also have to be careful that the DC level of the node between the caps is at about 1/2 the voltage.
How to calculate the voltage of multiple capacitors?
Example: Suppose you have two identical 1000uf capacitors, and connect them in series to double the voltage rating and halve the total capacitance. Let’s also assume they are rated for 100 wvdc (working voltage) and 125v maximum surge. Solve the equation, using V m = 125, and V b = 200.
Why do you need resistors for multiple capacitors?
If you charge a series bank up all the way, some caps are always undercharged and some overcharged (not good). To help them share voltage equally, you add balancing resistors. Basically the resistors act as a big voltage divider and counteract the effects of variance in capacitance and leakage current.