Isaac Marino Bavaresco wrote: > Last week we received a lot of 7805 voltage regulators in TO-220 package > and I think they are fake. > > They are marked as On Semiconductor parts, but the metal tab is too > thin, about the same thickness as the package pins. I can bend it with > my hands. > In every TO-220 package I have ever seen before, the metal tab is much > thicker than the pins. According to their specs, that tab is between 0.508mm and 1.39mm and the pins are between 0.46mm and 0.64mm. So in theory you could get a case that's within spec and still has thicker pins than the tab. Gerhard -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist