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AC working volatge of a Capacitor

#34560

AC working volatge of a Capacitor | 26 May, 2005

The approximate AC working voltage of a capicitor,comapred with it's DC rating is=

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Rob

#34571

AC working volatge of a Capacitor | 27 May, 2005

....on the manufacturers datasheet.

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#34865

AC working volatge of a Capacitor | 9 June, 2005

Capacitor working voltage One very important rating of capacitors is "working voltage". This is the maximum voltage at which the capacitor operates without leaking excessively or arcing through. This working voltage is expressed in terms of DC but the AC equivalent is about only one half of that DC rating. As the AC frequency increases the working voltage rating decreases further still.

Heating of the dielectric also decreases the working voltage.

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GEB

#34867

AC working volatge of a Capacitor | 9 June, 2005

If you can put an AC voltage through the capacitor it will say its rating on the datasheet. (Wouldn't recommend trying AC on an electrolytic one though!) Here's one to try http://www.farnell.com/datasheets/51176.pdf page 2.

http://www.electronics-tutorials.com/basics/working-voltage-capacitance.htm familiar....

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