If you look at some cap types, they can go from -20% to 200%. For bypass caps, usually the more uF the better! Look at Z5U or XR7 for examples. .1uf Panasonic mylar or poly are usually good. Look at Digikey? Probably not in surface mount! Mike Hagen Engineering -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.