Derating of polymer electrolytics

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  • Perry Babin
    Member
    • Apr 2024
    • 22
    • usa
    #1

    Derating of polymer electrolytics

    There have been suggestions for derating polymer electrolytics to below the rated values. I've seen documents that recommended this and some that indicate that derating isn't required. The documents recommending derating are often old or refer to old documents. Do polymer caps of this type still require derating for reliability?

    If they require derating, why would the manufacturer give them their rated voltage?

    This is the basic type of capacitor I'm referring to and included simply to eliminate other caps that use similar names.
    https://www.mouser.com/datasheet/3/535/1/PSGLL-e.PDF
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