On Wed, 17 Mar 2004 15:45:34 -0000, the renowned "Emoneg"
wrote:


"Paul Burridge" wrote in message
.. .
| Hi,
|
| They look worryingly inductive on visual inspection (there are metal
| foils rolled up in thar by the look of it.) And yet the CPC catalogue
| says that their properties make them ideal for use in filters. Has
| anyone any remarks (favourable or otherwise) to make about the use of
| this type of cap in filter apps?
|
| p.
| --
|
| The BBC: Licensed at public expense to spread lies.

Silly boy...... Go and find out about construction methods. The
metallisation is offset so the end terminations parallel the internal
layers.

DNA

Yup. Take two sheets of letter-size (okay, A4) paper and lay one on
top of the other but the top one to the right by 1/2". These are like
the plates of your capacitor. Now roll them up from the bottom to the
top into a tight roll. Imagine you connect to all the right end (in
parallel) by dipping it in some conductive goop, and call that lead A.
Do the same to the left, and call it lead B. The coiled construction
adds no inductance.

Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
Info for manufacturers: http://www.trexon.com
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