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What Caps to Stock?

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    #1

    What Caps to Stock?

    There may be a thread on here somewhere covering this already but I can't seem to find it.
    I am about to place a small order from DigiKey and wanted to fill it in with some missing caps.
    My question is this. In the electrolytic department, what caps do most of you usually keep on hand? I buy multipacks for small projects and screwing around but what do you keep in the Panasonic/Rubycon etc lines?
    Tags: None
    #2
    Re: What Caps to Stock?

    Yes, this question has been covered before on this forum. Type this in your search engine.

    common caps stock site:badcaps.net

    For me, I can't have enough 1000uF 16V caps. Almost every device I repair uses 1000uF. I get them in 1000uF 25V as well too. I try to standardize on 10x16 mm so it fits in most applications.

    470uF 35V in 10x16mm gets used a lot.

    10uF, 22uF, and 47uF in 50V are good for startup caps.

    Something like Panasonic FR, Pansonic FM, United Chemicon KY brand.
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      #3
      Re: What Caps to Stock?

      Once again Retired Caps, I thank you. I put in the keywords in a different order than what you did and got nothing. I guess you just have to know where to look.

      Comment

        #4
        Re: What Caps to Stock?

        It depends on what you repair mostly.

        If you're into epairing a lot of LCD TVs, they often use low capacity capacitors, but spec them at a higher than necessary voltage to get the lower ESR and higher ripple capacity. So, where they would only need say a 16V 470uF capacitor, they would use something way higher than 16V, like 35V, to get the better spec of the larger case size.

        I couldn't tell you exactly which caps to get for LCD TVs, as I haven't even repaired one of them (though I've done some PC LCDs), but here are some caps to get for computer:

        1) All the caps for the usual rails that are always used in PSUs, and in 10mm:
        6.3V/10V 1000uF/1500uF (For 3.3V and 5V rail)
        16V 1000uF/1500uF/2200uF/3300uF (for 12V rail)

        And for low ESR caps, stock a lot of 6.3V 820uF/1000uF in 8x11.5mm/8x15mm. These caps go very, very fast, because they're needed quite often even on modern motherboards. For example, today I preemptively re-capped a brand-new Asus P8B75-M that had something like 11 Toshi Kyogo low ESR equivalents wherever they didn't use polymers.

        And also some 16V 470uF Ultra-Low ESR 8x11.5mm caps. Where electrolytics are used, there is always one of these over by the 16X PCIe slot, and it is almost always a KZG.

        For Ultra-Low ESR, the only manufacturer still producing them is Suncon (last I heard?).

        Finally, you want all the small 5x11mm caps (1uf/2.2uf/4.7uf/10uf/22uf/47uf/100uf)...
        "We have offered them (the Arabs) a sensible way for so many years. But no, they wanted to fight. Fine! We gave them technology, the latest, the kind even Vietnam didn't have. They had double superiority in tanks and aircraft, triple in artillery, and in air defense and anti-tank weapons they had absolute supremacy. And what? Once again they were beaten. Once again they scrammed [sic]. Once again they screamed for us to come save them. Sadat woke me up in the middle of the night twice over the phone, 'Save me!' He demanded to send Soviet troops, and immediately! No! We are not going to fight for them."

        -Leonid Brezhnev (On the Yom Kippur War)

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          #5
          Re: What Caps to Stock?

          Originally posted by bwilliams60 View Post
          I put in the keywords in a different order than what you did and got nothing.
          Like everything, practice helps a lot.

          I also try experimenting with different engines and different words.
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          We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

          Please do not post inline and offsite as they slow down the loading of pages.

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          Comment

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