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Explanation of capacitor rating

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    Explanation of capacitor rating

    Hello,
    I'm reading an article about the "capacitor plaque" in early 2000s and I have found one sentence I cannot understand.
    The normal lifespan of a non-solid electrolytic capacitor of consumer quality, typically rated at 2000 h/85 °C and operating at 40 °C, is roughly 6 years. It can be more than 10 years for a 1000 h/105 °C capacitor operating at 40 °C.

    What this 2000h or 1000h means? Why 1000h capacitors have longer life span?

    #2
    Re: Explanation of capacitor rating

    A rough estimation is that capacitor lifetime doubles with each 10°C reduction of rated temperature.
    "The one who says it cannot be done should never interrupt the one who is doing it."

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      #3
      Re: Explanation of capacitor rating

      An #,000 hour cap is that many hours at rated maximum temperature, voltage, and ripple current (if there is a ripple current rating).
      PeteS in CA

      Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
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