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Best capacitor library symbol for 80-C315C104M5U from polybot project?

autodeskguest

 

Hi,

 

I am playing with the polybot project which recommends using Eagle for

developing  its  circuit  board.   The  project  using  Kemet  ceramic

capacitors 80-C315C104M5U 0.1uF as decouple capacitors for the circuit

board ICs.   The capacitor package type  is C315.  How  do I determine

which Eagle  library capacitor symbol is  the best fit to  use for the

capacitor?   The cap  has just  two wires  coming off  it  so probably

anything reasonable would work, but is there a preferred selection?

 

Thanks for any suggestions and pointers.

 

marc

 

--

 

 

 

Parents

  • Marc D Ronell wrote on Thu, 20 May 2010 23:03

    The  project  using  Kemet  ceramic capacitors 80-C315C104M5U 0.1uF as

    decouple capacitors for the circuit board ICs.   The capacitor package

    type  is C315.

     

    I don't know what a C315 package type is (are you sure that's not the

    component designator?), but if these are really decoupling caps there is a

    wide range of parts that would work well.

     

    Nowadays I use mostly 1uF caps for decoupling.  A 0805 or 0603 1uF cap

    right at the supply pin with a short return back to a ground pin on the IC

    has better characteristics than the 100nF leaded caps of a few years ago.

     

    In any case, the point is there are many many 100nF to 1uF ceramic caps

    that will fill the decoupling role.  You might as well use some that are

    available, cheap, and in a common package, like 0805 or 0603.

     

    --

    Web access to CadSoft support forums at www.eaglecentral.ca.  Where the CadSoft EAGLE community meets.

     

Reply

  • Marc D Ronell wrote on Thu, 20 May 2010 23:03

    The  project  using  Kemet  ceramic capacitors 80-C315C104M5U 0.1uF as

    decouple capacitors for the circuit board ICs.   The capacitor package

    type  is C315.

     

    I don't know what a C315 package type is (are you sure that's not the

    component designator?), but if these are really decoupling caps there is a

    wide range of parts that would work well.

     

    Nowadays I use mostly 1uF caps for decoupling.  A 0805 or 0603 1uF cap

    right at the supply pin with a short return back to a ground pin on the IC

    has better characteristics than the 100nF leaded caps of a few years ago.

     

    In any case, the point is there are many many 100nF to 1uF ceramic caps

    that will fill the decoupling role.  You might as well use some that are

    available, cheap, and in a common package, like 0805 or 0603.

     

    --

    Web access to CadSoft support forums at www.eaglecentral.ca.  Where the CadSoft EAGLE community meets.

     

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