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Article #1498Re: Help with capacitor markings please.
From: David J W Emrich
Date: Sun, 02 Aug 1992 13:17
Date: Sun, 02 Aug 1992 13:17
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aj@ib.rl.ac.uk (Andrew Jessett) writes: >Can anyone tell me the parameters of a capacitor marked thus: > d_ 224k > 1000 PPN >It has come from a device for zapping flies so it must be a high voltage >device. 2240 volts 1000 pF I wonder? >TIA >Andrew F. Jessett >Rutherford Appleton Laboratory >aj@uk.ac.rl.ib Close!! Actually the 224k is the capacitance value, the first two digits are significant figures, and the last is a multiplier, like resistor color codes. So the value is 22 * 10^4 picofarads. Or, for more usual people 220nF, or even .22uF, they are all the same value. I would guess (!) that the 1000 is the voltage rating. Probably DC volts. The PPN is a bit wierd, could be Paper (but it would have to be a very big (physically) cap for that. Might be polyester, or it might even be a manufacturers brand label. It's not easy unless you know what all the values on modern components are, so you can be excused for getting the wrong idea. Good try though! C U L8R [dav] aka David Emrich gude@uniwa.uwa.edu.au
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Newsgroups: sci.electronics Path: arc1-ca.pugleaf.net!sparky!uunet!haven.umd.edu!darwin.sura.net!mips!mips!munnari.oz.au!uniwa!gude From: gude@uniwa.uwa.edu.au (David J W Emrich) Subject: Re: Help with capacitor markings please. Message-ID: <1992Aug2.131742.10977@uniwa.uwa.edu.au> Organization: University of Western Australia References: <aj.37.712572503@ib.rl.ac.uk> Date: Sun, 2 Aug 1992 13:17:42 GMT Lines: 35