piclist 2001\01\10\145216a >
Thread: Surface mount components
www.piclist.com/techref/index.htm?key=surface+mount+components
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face BY : rottosenRemoveME@RemoveMEidcomm.com



Dan Michaels wrote:
{Quote hidden}

Dan-- you cheated us. If the caps have a tolerance on them then they are
in picofarads if not then you use the last digit as a power of 10. (or
maybe the other way around ???).

I think that capacitor manufacturers are from the dark ages. Remember
the old caps with 6 colored dots or the ones with dots on the body with
no obvious end to read from? They _never_ seem to mark caps in a
consistent way even now.
For instance:
 Some small value caps are in picofarads using digits and number of
zeros.
 Some small caps are in picofarads only.
 Electrolytic caps are marked on the negative side.
 Tantalum caps are marked on the positive side.
 Surface mount caps are not marked at all.

 I am _sure_ there are other cap marking problems that I can't remember
right now.


And you complain about resistors :-)

-- Rich



>
> Anyone who guesses 15 and 22 pF for the last two, I'll send you
> the caps, and you can measure them.
>
> - danM
>
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