At 16.40 12/03/2004 -0500, you wrote: >pic microcontroller discussion list wrote: >> Hello, >> what are Transil diodes? >> >> By Googling the best answer I could make is a kind of fast zener >> diode. >> > >well, when I googled, I found app note from ST on transil diodes. >Maybe I google better than you? *grin* > >http://www.st.com/stonline/books/pdf/docs/10111.pdf > >Sarcasm aside, transil diodes are used for ESD protection. I haven't read that specific AN, but I've read others similar, while Googling *grin* ;-) However, I still don't understand what do Transil diodes do so special that Zeners already don't? Perhaps they've less parasitic capacitance, on average? -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads