> > I really wonder why people used/still use tantalums. They seem to be > > nothing but grief. >=20 > Seems like you could do a rocket motor ignitor with them pretty nicely. = :) The > reverse voltage thing is obvious, but they also fail spectacularly with h= igh inrush > currents. I have thought of filling a 3 litre plastic drink bottle with compressed ai= r, up to about its maximum pressure capability, and taping a tantalum cap t= o the outside, setting it up somewhere, and applying reverse voltage to the= cap, when the neighbours are having a particularly noisy party ... > I don't design them into anything anymore. I think the design above might be the last .... How about the Niobium version that AVX and others are manufacturing as equi= valents? After all ceramic caps are as bad as tantalums as catching fire. I= have my own experience of that when doing a burn in on arrival of a new co= mputer ... --=20 Scanned by iCritical. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .