Capacitor limitations?? - Page 2

serengetiplains · 25th March 2005, 03:15 PM

Quote:

Originally posted by Alme
I happened to hear about dielectrical absorption influence only on performance of some input stages of measuring/medical equipment. They like to use Teflon decoupling caps in there.

So why use teflon caps in that application?

kimschips · 25th March 2005, 04:06 PM

Hey

Alme look at JCX link nr 3 page 15 -> I could use 10uF for the outputstage and 220nF decoupling with inputstage PSU lines??

Look also at JCX link nr 1 with 10uF and 100nF decoupling

I think it dosn´t matter with 1000uF cap when my shunt reg have 0.01R output impedance down to DC??

What is teflon caps and what can they do that others can´t?

Best regards

Sch3mat1c · 25th March 2005, 10:29 PM

Quote:

Originally posted by kimschips
What is teflon caps and what can they do that others can´t?

Not much. Polypropylene is about the best out there, and cheap to boot.

Tim

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25th March 2005, 04:06 PM	#12
kimschips diyAudio Member Join Date: Dec 2004 Location: Denmark	Hey Alme look at JCX link nr 3 page 15 -> I could use 10uF for the outputstage and 220nF decoupling with inputstage PSU lines?? Look also at JCX link nr 1 with 10uF and 100nF decoupling I think it dosn´t matter with 1000uF cap when my shunt reg have 0.01R output impedance down to DC?? What is teflon caps and what can they do that others can´t? Best regards