Capacitor Specification

[Ghurki]

Hello,

What is the difference between say 25V capacitor and 25 VDC capacitor exactly ??


Thanks

 

[Audioguru]

The voltage rating for a capacitor is its maximum allowed peak DC, which is 1.414 times higher than its sinewave RMS maximum voltage rating.
So if the voltage to a capacitor is 25VAC then the capacitor must have a voltage rating of at least 35V and a 100V capacitor can be used for good reliability.
Note that some types of capacitors are polarized and blow up if their polarity is backwards.

 

[Borber]

No difference, both are DC.