At 09:31 PM 6/13/2010, pdooley wrote: >Hmmm, can transistors stick in the "activated" state? >David? As a rule, a transistor that fails from overcurrent will fail open because it melts. If it fails from overvoltage it tends to fail short because the internal diode(s) or insulating layers have been punctured. Overvoltage for high-impedance transistors like FETs definitely includes plugging and unplugging things with the power on. And failures can be cumulative. Yours, David |
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