David VanHorn wrote: >Look at the gate threshold voltage spec. >The 2N7000 is a popular device with 5V logic drive. > >3V will be more challenging. The gate threshold voltage on this says 2.1V or max 3V, so I guess this will do for 5V circiuts. Since 400mA is more than I need, can I start experimenting by just replacing the 2n3904 transistor in one of my circuits with one of these and remove the base resistor? So PIC output pin to the gate, source to ground and drain to the common anode of a 7-segment LED. If a PIC is made up of many fets and works down to 2V, then there must be something that can work for 3V, right? Also, is there a p-channel common type like the 2n7000? Thank you, Brian _________________________________________________________________ Help STOP SPAM with the new MSN 8 and get 2 months FREE* http://join.msn.com/?page=features/junkmail -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body