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From: Fred Bloggs
User-Agent: Mozilla/5.0 (Windows; U; Win 9x 4.90; en-US; rv:1.0.1) Gecko/20020823 Netscape/7.0
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Subject: Re: What kind cap should I choose?
Date: Sat, 02 Nov 2002 17:47:21 GMT
NNTP-Posting-Date: Sat, 02 Nov 2002 09:47:21 PST
Organization: EarthLink Inc. -- http://www.EarthLink.net
Bill Sloman wrote:
> In fact you can't get 110nF capacitors off the shelf from any supplier I
> know. Farnell stock +/-2% polyphenlene sulphide surface mount capacitors up
> to 100nF, which are probably as stable as anything that is easily available
> at around that value.
The polyphenylene sulfides hold the best promise but the manufacturers
rarely stay with a fixed tempco quoting numbers like 50ppm typical and
300ppm bands, with indefinite aging characteristics- which is the
biggest drawback to film. There is such a thing as magnetic
transformation of capacitor impedance into the tank- maybe this should
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