What happens to quality factor of capacitor when they are in parallel or series? For example if one 270pF has minimum Q of 1000 and two capacitors in parallel with total value of 270pF, (each capacitor has minimum Q of 1000). What will be total Q in a second case when two capacitors are paralleled?
Quality factor
Sep 10, 2010
6 Replies
If caps have the same quality, nothing changes, either in parr, or in series. The assembly will have a q of 1000.
Where on earth have you found the supposed 'Q' of capacitors stated ?
Graaham
It's important in RF, especially power RF. It's worth paying a little more for caps that don't unsolder themselves from the board.
Google high-q capacitor
John
Donkeys trolls barely understand audio. :(
Politicians should only get paid if the budget is balanced, and there is
enough left over to pay them.
It's there specially for NPO caps.
On the data sheet, if its relevant.
For example, go to:
http://www.panasonic.com/industrial/components/pdf/abj0000ce8.pdf
and peruse the graphs on page EC42.
Note that the sizes given are EIA, (fancy that!) so if you use IEC
sizes the Q might be lower.
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