> But they actually specify the maximum forward voltage (at a certain > current) in maximum ratings sections. I checked http://www.fairchildsemi.com/ds/1N/1N4148.pdf, it does not specify this. Only the maximum current. > We probably could conclude from this > that going over this in a dynamic situation takes the diode out of the > specified operating range. The 'this' is missing, so no conclusion can be drawn... I might be a sloppy reader, but I can't even find a switch-on time specification, which would be the root issue here. So again, no data => no conclusions :( Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products docent Hogeschool van Utrecht: www.voti.nl/hvu -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist