> Do you really have to use this transistor? Do you already have some > other transistors to use as drivers for them? If not, perhaps you > should consider some other transistors, I would suggest MOSFETs. > Your losses will generally be lower. High voltage MOSFETs tend to have much higher on resistance than the low voltage one you are probably more used to. At 300V off and 10A on a bipolar power transistor may very well have a lower on voltage. ***************************************************************** Embed Inc, embedded system specialists in Littleton Massachusetts (978) 742-9014, http://www.embedinc.com -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics