Capacitor replacement - different uF value [closed]

Question

Nice to see strackexchange has an electrical site too.
I am not familiar with electrical components and this is a kind of "low level hardware" if I can say it this way.

My monitor's matrix stopped working. With an eye shot I see the monitor itself is working, but the matrix didn't turn on.

After some research I found the problem - It has 3 capacitors on the power supply board which are not looking so good.

I have bought 3 capacitors with the same size and voltage - but the uF value is a little different

Broken capacitors: 820uF - 25V - 105.C max temp
New capacitors: 1000uF - 25V -105 .C max temp

I know that this kind of capacitors can be replaced with other capacitors with almost the same uF value (+/- 20%). But in my case they are 3 (not just one).

I am thinking about replacing them, but I have to know:
Is there a chance to make critical damage to the power board due to the capacitor's uF values?
Can u hint me about what can happen?

Answer 1

Electrolytic capacitors have a very large value tolerance, -30/+50 % is not uncommon, so your small in crease in capacity is unlikely to cause a problem. And you have matched the temperature rating too, good.

But there is one other parameter that can be crucial in your case (presumably a switching power supply): the series resistance. If this value is too high, your new capacitors will not last long. Unfortunatly this value is not show on the component. If the original ones have a brand and type number you might be able to google the value.