Capacitor Lifetime

When it quits, its lifetime will end.

When it quits, is anybodies guess.

When it quits will depend on the stresses it has seen in service.

_{(5 years, or 50 million cycles)}

NIC COMPONENTS CORP

Depends on the materials that the capacitor is made from, charge/discharge rates, absolute voltages of operation, and ambient temperature.

thx

There's some in the storage box here that are over 50 years old.

You overload it, even temporarily, even by a spike, and its life has ended. Some has some selfhealing properties. Good to have it, not so good to rely on it. Properly derated, a good one should last the life of the equipment (a slight exaggeration only).