Em 27/2/2011 18:46, William "Chops" Westfield escreveu:
> On Feb 27, 2011, at 8:35 AM, Olin Lathrop wrote:
>
>> I mean the name of the ceramic
> Digikey's parametric search seems to call this the "temperature =20
> coefficient", BTW...
> It doesn't look like it's likely to be in the "part number" (as =20
> someone else suggested.)  It's probably there, but encoded into some =20
> proprietary single-letter code...
>
> BillW


Beware of the high dielectric constant dielectrics, some of them also
exhibit a high piezoelectric effect (microphonics). Perhaps not a
problem for most applications but may be troublesome for others.

It would be weird an audio circuit that picks mechanic vibration
directly from the board.


Isaac

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