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Re: Newbie question - capacitor polarity

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  • xxxtoytech
    I would use an unpolarized capacitor, it s only a small value, 1 microfarad, and these capacitors are readily available and cheap. Since it s not labelled as
    Message 1 of 2 , Oct 31, 2003
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      I would use an unpolarized capacitor, it's only a small value, 1
      microfarad, and these capacitors are readily available and cheap.
      Since it's not labelled as polarized on the schematic then use an
      unpolarized one.

      Regards
      xxxtoytech

      --- In home_electronics@yahoogroups.com, "beanman3000"
      <andrew_n@p...> wrote:
      > I really don't know a whole lot about electronics, just enough to
      get
      > into trouble. I am working on an ISO9141/RS-232 interface that
      will
      > sit between my laptop and the computer in my Jetta. I have all the
      > stuff I need and I am building the item. My question is deals with
      > the orientation of the capacitor. The cct diagram specifies that
      it
      > does not really care about the +/- orientation, but I am quite sure
      > that the capacitor that I have is polarized. Since the cct diagram
      > does not care, there is no information on it with regard to
      > polarity. If I am correct, the capacitor's long lead is pos and
      the
      > short lead is neg. I have a link to the cct schematic:
      >
      > http://www.planetfall.com/~jeff/obdii/schematic_b1.pdf
      >
      > If someone could take a look at it for me and tell me which end is
      > up, I would really appreciate it!
      >
      > Thanks
      >
      > Andrew.
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