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Surface Mount Capacitor Type

Discussion in 'Electronic Components' started by Andros, Jun 18, 2006.

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  1. Andros

    Andros Guest

    Hello!

    I´m looking for ceramic surface mount capacitor..., but when i consult
    some catalogs, i find that there is a "type"..., something like: NP0,
    X7R, Y5V.......

    Someone knows what´s the meaning of this "types"?, how could
    influence my desing?

    Many thanks

    Andros.

    P.D: Excuses for my english...
     
  2. Pooh Bear

    Pooh Bear Guest

    It's the dielectric.

    How that might influence you depends on the application.

    Graham
     
  3. Pooh Bear

    Pooh Bear Guest

    Your English is actually better than some supposed English speakers !

    Graham
     
  4. Those types specify the temperature characteristics of the dielectric
    - how the capacitance changes with changes in temperature.

    NPO changes very little with temperature - you would want that if the
    capacitor was used in a timing circuit.

    X7R changes quite a bit with temperature - they're fine for power
    supply bypass and similar applications.


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    Peter Bennett, VE7CEI
    peterbb4 (at) interchange.ubc.ca
    new newsgroup users info : http://vancouver-webpages.com/nnq
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  5. Pooh Bear

    Pooh Bear Guest

    Note also that ceramic dielectrics other than NP0 have non-linearities.

    Graham
     
  6. Ken Finney

    Ken Finney Guest

    Hello!

    I´m looking for ceramic surface mount capacitor..., but when i consult
    some catalogs, i find that there is a "type"..., something like: NP0,
    X7R, Y5V.......

    Someone knows what´s the meaning of this "types"?, how could
    influence my desing?

    Many thanks

    Andros.

    P.D: Excuses for my english...

    ____________

    If you want more information than you have already been given, here is a
    nice paper.

    http://www.avx.com/docs/techinfo/mlcmat.pdf
     
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