At 17.24 2013.05.23, Dwayne Reid wrote: >If I were in this situation, I'd be reaching for an electrolytic cap=20 >- either through-hole or SMT. I don't purchase electrolytic caps=20 >that don't work down to at least -40. Sanyo used to be the only=20 >supplier that I was aware of who met this requirement but now many=20 >manufacturers have caps that work down to as low as -55C. Sanyo's=20 >electrolytic capacitors also have the advantage of having extremely low ES= R. > >If you have the room, use a leaded radial cap but lay it down, then=20 >cover with conformal coating. If you don't have room for that, leave=20 >it standing but support it with conformal coating or cast it in epoxy. > >I know that very-high-value MLCC can be reliable (I'm using some=20 >100uF 10V parts that are absolutely tiny) but I honestly don't know=20 >how they stand up to flexing caused by vibration. What about through hole MLCC's? Like this for example: http://it.mouser.com/ProductDetail/TDK/FK24X5R0J106M/?qs=3DsGAEpiMZZMuAYrNc= 52CMZAWzPNiQZc%2f%2fRMPViAOKhDA%3d (Mouser code 810-FK24X5R0J106M in case the above link gets mangled) Are they (TH MLCC's) more reliable than the 0603 SMD technologically identical counterparts? Because in the end I could use these, they're almost as cheap as the wet electrolitics but look way more "solid", if you let me use the term. :D Thanks! Mario > >dwayne --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .