I've read that electrolytics actually degrade faster when they are not used close to their voltage rating, ie, a 35v cap on a 5v line - though I can't remember where... -Adam Roman Black wrote: >temperatures. If I have to use electros in >something sensitive I use the 105'C electros >and overrate voltage at about 3x and mount them >away from heatsinks and big resistors. Some TV > -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu