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Q: DINGFENG CAPACITOR - Can I use a higher voltage rated capacitor than the original?
A: Yes. A capacitor will have a marked voltage indicating its acceptable peak voltage, not its operational voltage. Therefore, you can select a capacitor with a voltage rating at or above the original capacitor. If you're using a 370 volt capacitor, a 370 or 440 volt one will work, though the 440 volt unit will actually last longer. However, you cannot replace a 440 volt capacitor with a 370 volt one without dramatically reducing its lifespan.
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