Re: box vs film caps (if that even makes sense)

Posted by rocket88 on
URL: http://guitar-fx-layouts.238.s1.nabble.com/box-vs-film-caps-if-that-even-makes-sense-tp25024p25030.html

long story short box and film caps are the same. the only difference is the footprint they take up on the board. i've got a bunch of greenies, but don't use them cause the higher values get huge, so i only use the ones that i can't get the values in box caps or the panasonic ones. typically i use the red panasonic 63v poly, as they are small and high quality. i don't  really use box caps as they can be fairly expensive, and don't really find they save much space compared to the panasonics. i haven't really seen round poly caps, except the axial ones, which are able to make larger spans.

as chris pointed out it's been covered in another thread, but when looking at a layout you can tell the cap type by it's value:

1pf-999pf: ceramic or multilayer ceramic (multilayer ceramics are less likely to become microphonic)
1nF-1uF: poly
1uF-1000uF: electrolytic (usually seen as round on the layout and show polarity)