This is what I was thinking, in that the full current of the circuit would have to be supported, but only for a short period of time, considering transiets are typically short. Doesnt take much to vaporize a trace, so with that, big fat wide traces are in order. thanks all! _________________________________________________________________ Add photos to your e-mail with MSN 8. Get 2 months FREE*. http://join.msn.com/?page=features/featuredemail -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body