On 2/9/06, Rich Graziano wrote: > > The TVS is fast (Picoseconds). It is the diode of choice for protecting > the > transistor because it can shunt the transient before the transistor or FET > is damaged. The idea is to be faster than the transient. I hate to keep yanking this chain, but I think the idea is not to generate the transient in the first place. First rule of noise supression, Don't make it! -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist