A Capasitor (the purposely misspelling of Capacitor) is a faulty electrolytic capacitor that fails in a short period of
time (1-3years). Most Capasitors are the result of incorrect electrolyte formulation in aluminum electrolytic capacitors.
Its rumored the "S" in Capasitor is from "Shitty" and
like the
wrong formula was simply stuck in there .
A electrolytic Capacitor that explodes instantly from being installed backwards is not a Capasitor, as that is a install error and not a component manufacturing problem.
The Capasitor plague was a period between
1999 and
2007 when Capasitors were killing in a large number of products.