Solved Need to Replace blown capacitors inside LCD monitor

June 17, 2013 at 17:21:24
Specs: Windows 7
can I replace a 470uf 25v capacitor with a 470uf 35v? This is for a lcd computer monitor. The one that is on there now are 105 degrees and so are the 35v that I am asking about

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✔ Best Answer
June 18, 2013 at 09:59:49
The only time replacing electrolytic capacitors with ones of a higher voltage rating is unwise is if the voltage difference is extreme. For example if a 1V capacitor was replaced with a 100V one then it might not be able to "form" correctly at the lower voltage. In the instance quoted it should be fine - there is plenty of leeway in this.

Obviously you never replace with one of a lower voltage rating unless you are certain the actual voltage will always stay below that of the capacitor rating.

Always pop back and let us know the outcome - thanks



#1
June 17, 2013 at 19:18:39
As long as the capacitance/uf is the same, using a higher voltage cap is fine. In fact, it would provide added protection.

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#2
June 17, 2013 at 22:58:36
Do some rough measuring first to make sure the higher rated cap will physically fit in the same place as the old one. Sometimes circuit board components are packed together pretty tight.

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#3
June 18, 2013 at 02:41:08
thank you for you reply

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#4
June 18, 2013 at 09:59:49
✔ Best Answer
The only time replacing electrolytic capacitors with ones of a higher voltage rating is unwise is if the voltage difference is extreme. For example if a 1V capacitor was replaced with a 100V one then it might not be able to "form" correctly at the lower voltage. In the instance quoted it should be fine - there is plenty of leeway in this.

Obviously you never replace with one of a lower voltage rating unless you are certain the actual voltage will always stay below that of the capacitor rating.

Always pop back and let us know the outcome - thanks


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