Does anyone have an opinion, comments or data to support a rumor I heard? I'm told that tantalum caps can fail shorted if required to supply a current surge. To prevent this failure aluminum electrolytics are preferred on digital boards. I thought Aluminum electrolytics weren't very stable in capacitance over temp and were not preferred to tantalum for that reason as well as size (more Capacitance per volume in Ta than Al). Gary P. --- Gary D. Peterson _/_/_/ _/ _/ _/ SANDIA NATIONAL LABORATORIES _/_/_/ _/ _/_/ _/ _/ P.O. Box 5800, M/S 0503 _/_/ _/_/_/ _/ _/ _/ _/ Albuquerque, NM 87185-0503 _/_/_/_/_/_/ _/ _/ _/_/ _/ Phone: (505)844-6980 _/ _/_/ _/ _/_/_/ _/ _/ _/_/_/_/ FAX: (505)844-2925 _/ _/_/ _/ E-Mail: [log in to unmask] _/_/_/