>Whether the part is depletion mode or enhancement mode >since datasheet doesn't mention any thing about the mode?. If it is a MOSFET it will be enhancement mode unless other wise stated (requires extra processing to make them depletion mode). If it is a Junction FET it will be depletion mode. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist