- Frank Puhane
- Capacitors
- 10. February 2022
- Reading time: 10 Min.
Afraid of aging? The effects of time on electrolytic capacitors
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Capacitors, similar to many other components have a certain lifetime with a changing performance over the time. The change in the performance is very much dependent of the quality of the material used, the storage conditions before used in an application. Electrolytic capacitors have been around for a very long time, but the rapid increase did not occur until the 1960s. There are still many "myths" from that time that revolve around the aging and shelf life of these capacitors. Aging is distinguished between the following changes in the capacitor performance: Change in capacitance, ESR and leakage current during operation (with voltage applied) and reduction of dielectric strength due to degradation of the dielectric (no voltage applied). However, why do these effects occur? These and other questions will addressed in this document.
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