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Can anyone help me identify these components

Discussion in 'General Electronics Discussion' started by jamine16, Feb 7, 2014.

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  1. jamine16

    jamine16

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    Jan 16, 2013
    Hi, I need help identifying the 3 components I have highlighted.

    Also it would be great if somebody could point me in the direction of where to buy some.

    Many thanks in advance.
     

    Attached Files:

  2. Harald Kapp

    Harald Kapp Moderator Moderator

    11,268
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    Nov 17, 2011
    The two at the left are probably ceramic capacitor. The one to the right a resistor.
    432 means 43*100 OHm = 4.3kOhm
    The capacitors have no visible marking, it is probably on the underside. No chance of identification without de-soldering them.
     
  3. jamine16

    jamine16

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    Jan 16, 2013
    I have de - soldered many of these and there is no marking anywhere.

    Thanks
     
  4. Andyjm

    Andyjm

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    Feb 7, 2014
    We use a lot of caps like this at my work, and generally the only way we can identify them is to desolder them and check them with a capacitance meter. If you measure them on the PCB you won't always get a proper reading depending on what else is on the circuit. Hope this helps
     
  5. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    Jan 21, 2010
    Yep, I'd agree with that.
     
  6. jamine16

    jamine16

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    Jan 16, 2013
    Thanks for the info.

    So if I test them on a capacitance meter and came back with the results, do you think you would be able to identify them?

    Thanks
     
  7. Andyjm

    Andyjm

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    Feb 7, 2014
    I think I could certainly try, and if I can't then I'm sure someone else on the forum could.
     
  8. Harald Kapp

    Harald Kapp Moderator Moderator

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    Nov 17, 2011
    Once you've tested them, you've identified them. Capacitance and size are relvant parameters. From the picture I don't think these are special with regard to voltage. Typically this size is rated 50V, max. 100V.
     
  9. jamine16

    jamine16

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    Jan 16, 2013
    If it helps, these are on a key fob with a 3.6v battery.
     
  10. Andyjm

    Andyjm

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    Feb 7, 2014
    My apologies, I thought you meant.identify them as in 'what are they doing in the circuit?' If not, then as above, once you have the values you're done.
     
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