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  1. #1
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    Seeking: 3400uF 50VAC or greater low loss, tan-delta < 0.01 say

    Hello All,

    Am seeking some caps for a power filter at low voltage AC, per the title.

    Would consider 3 x 1200uF or even 5 x 680 uF AC..!

    The combined 3400uF should be able to handle 50A rms on a continuous basis ( motor start caps are out as too lossy, tan-delta = 10% )

    any pointers to a solution welcomed

    kind regards,

    - - - Updated - - -

    and please don't say back to back electrolytics with diodes ...

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  2. #2
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    Re: Seeking: 3400uF 50VAC or greater low loss, tan-delta < 0.01 say

    I don't really know what space this is in, frequency etc. I'm assuming mains.

    They do make bipolar electrolytic though I'm not clear if they're suited for continuous AC use or not.
    https://www.mouser.com/Passive-Compo...Bipolar&No=625

    Films won't have any problem with the current but they might be huge and expensive.
    https://www.digikey.com/product-deta...177-ND/5372300


    MLCC are out because they don't actually handle AC well correct?



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  3. #3
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    Re: Seeking: 3400uF 50VAC or greater low loss, tan-delta < 0.01 say

    Standard power electronics DC bus capacitors like 850V 3750µF are the nearest. D 150 mm; L 225 mm!



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  4. #4
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    Re: Seeking: 3400uF 50VAC or greater low loss, tan-delta < 0.01 say

    CAP: I0600L9500UKN4BFE3N, 1000pcs, FOB price USD25.00/EACH

    Sheng Ye Electric Co., Ltd, Add:No.4, Lunjiao Xinxi 4th Road, Shunde, Foshan City, Guang Dong Province, 528309, China, Tel: +86-757-27830015 www.shengye.com

    So the above cap part # is 600V 950uF ( DC bus cap - but fine for AC as it is film/foil ) 3 of these babies is $75.00 USD + some littlies thrown in to get to 3400uF

    at low loss ...


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  5. #5
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    Re: Seeking: 3400uF 50VAC or greater low loss, tan-delta < 0.01 say

    Quote Originally Posted by Easy peasy View Post
    CAP: I0600L9500UKN4BFE3N,
    can you describe the way how did you find it?
    and how to make sure that parts of this company is reliable?



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  6. #6
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    Re: Seeking: 3400uF 50VAC or greater low loss, tan-delta < 0.01 say

    how I did it: - by searching the internet

    company is reliable? I got a detailed data sheet and have samples in transit.



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