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Need replacements for Samxon HP

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    #21
    Re: Need replacements for Samxon HP

    I think I made a mistake, I ordered CS which has a very high ripple current measurement but is 100khz, it does have a freq coefficient for 120hz but I don't know how to calculate it
    Cap Datasheet Depot: http://www.paullinebarger.net/DS/
    ^If you have datasheets not listed PM me

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      #22
      Re: Need replacements for Samxon HP

      Could someone find me a replacement for a 10v 2200f Capxon KM. MUST be from mouser, because I fucked up and ordered 1200 instead from digi-key. Mouse is local and I can will call pick up

      They need to be 105c, 10mmD. It's an 886MArams
      Cap Datasheet Depot: http://www.paullinebarger.net/DS/
      ^If you have datasheets not listed PM me

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        #23
        Re: Need replacements for Samxon HP

        For ripple current coefficient: the table in the datasheet is just the value you multiply by.
        So if it shows "1" for 100Khz and "0.8" at 120Hz you multiply the rated ripple current with 0.8 to get what it is rated for at 120Hz.

        As for the Capxon KM that is just a general purpose cap, this looks like a good replacement:
        https://www.mouser.se/ProductDetail/...fElVGH5A%3D%3D
        "The one who says it cannot be done should never interrupt the one who is doing it."

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          #24
          Re: Need replacements for Samxon HP

          Originally posted by Per Hansson View Post
          For ripple current coefficient: the table in the datasheet is just the value you multiply by.
          So if it shows "1" for 100Khz and "0.8" at 120Hz you multiply the rated ripple current with 0.8 to get what it is rated for at 120Hz.
          I wondered if it was that simple. Glad to hear I was right. I did research on the subject but all I ran into was some more complicated formulas

          Originally posted by Per Hansson View Post
          As for the Capxon KM that is just a general purpose cap, this looks like a good replacement:
          https://www.mouser.se/ProductDetail/...fElVGH5A%3D%3D
          I saw those but never heard of that brand. Cornell (rest in peace man)-Dubilier I know of of but even some samxon series are total shit
          Last edited by Uranium-235; 03-19-2022, 08:15 AM.
          Cap Datasheet Depot: http://www.paullinebarger.net/DS/
          ^If you have datasheets not listed PM me

          Comment


            #25
            Re: Need replacements for Samxon HP

            Plenty more caps to choose from:

            https://www.mouser.se/ProductDetail/...7HvO%2Fg%3D%3D

            https://www.mouser.se/ProductDetail/...8F61RdOQ%3D%3D
            "The one who says it cannot be done should never interrupt the one who is doing it."

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              #26
              Re: Need replacements for Samxon HP

              Ripple is too low
              Cap Datasheet Depot: http://www.paullinebarger.net/DS/
              ^If you have datasheets not listed PM me

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                #27
                Re: Need replacements for Samxon HP

                Hence why I linked the Würth capacitor.
                "The one who says it cannot be done should never interrupt the one who is doing it."

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                  #28
                  Re: Need replacements for Samxon HP

                  Originally posted by Per Hansson View Post
                  Hence why I linked the Würth capacitor.
                  Are they good quality? I guess I'm saying, are they Würth it?
                  Cap Datasheet Depot: http://www.paullinebarger.net/DS/
                  ^If you have datasheets not listed PM me

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                    #29
                    Re: Need replacements for Samxon HP

                    I've used them when recapping a dozen or so Siemens 440 Micromaster inverters without complaints so far, but it's only been around 6 months.
                    That said others on the forum have used them too and I've never seen any complaints!
                    "The one who says it cannot be done should never interrupt the one who is doing it."

                    Comment


                      #30
                      Re: Need replacements for Samxon HP

                      Originally posted by Uranium-235 View Post
                      Are they good quality? I guess I'm saying, are they Würth it?
                      LOL! Good one.

                      Originally posted by Per Hansson View Post
                      I've used them when recapping a dozen or so Siemens 440 Micromaster inverters without complaints so far, but it's only been around 6 months.
                      That said others on the forum have used them too and I've never seen any complaints!
                      For polymer caps - sure, I think Wurth are probably fine. Heck, even CapXon polymers don't seem to be troublesome in any way.

                      But when it comes to wet electrolytics, I still tend to be skeptical of these relatively "new" brands and prefer to stick to the known good Japanese brands... at least for now, until these brands "prove" themselves for a little longer. Not that the Japanese brands had a perfect track record either... but I still trust them a little more overall.

                      That aside, I don't see why go with a GP cap there. "Classic" low-ESR PSU type caps from UCC, Nichicon, and Rubycon are typically about the same price. So I'd go with any these.

                      UCC KY p/n: EKY-100ELL222MJ30S
                      https://www.mouser.com/ProductDetail...wHCDoBkg%3D%3D

                      Nichicon HE p/n: UHE1A222MPD
                      https://www.mouser.com/ProductDetail...AgLbFhFw%3D%3D

                      UCC KYA p/n: EKYA100ELL222MJ25S
                      https://www.mouser.com/ProductDetail...x5STEIQA%3D%3D

                      Nichicon PW p/n: UPW1A222MPD6
                      https://www.mouser.com/ProductDetail...sGYjabeQ%3D%3D

                      These should last a pretty darn long time and could probably even be reused afterwards in some other device. Also, they're in stock too.

                      Actually, if you wanted to go cheaper, there's these Rubycon ZLS caps:
                      https://www.mouser.com/ProductDetail...m3SkM05A%3D%3D
                      ... but honestly, I think their ESR is a bit too low for PSU use. Probably will work fine, but you may get louder high-pitched whining from the PSU. Same deal with Panasonic FM/FR/FS - at least from what I've experimented with in LCD monitor PSUs... that is, ones that came with otherwise junky, just-barely-above-GP grade caps. If the PSU had UCC KZE or equivalent, then ZLS would be fine.
                      Last edited by momaka; 03-19-2022, 06:46 PM.

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                        #31
                        Re: Need replacements for Samxon HP

                        You can go up that far for ripple? Yeah I was a bit concerned about using low esr caps for PSU's
                        Cap Datasheet Depot: http://www.paullinebarger.net/DS/
                        ^If you have datasheets not listed PM me

                        Comment


                          #32
                          Re: Need replacements for Samxon HP

                          Also these samwha have this...interesting (melted?) plastic around one connector? They were sandwiched between two large fet hinksinks. Sign of going bad? Normal manufacturing for this sucky quality? Put my freaking iron on too long? (can't be that because the other one is fine)
                          Attached Files
                          Cap Datasheet Depot: http://www.paullinebarger.net/DS/
                          ^If you have datasheets not listed PM me

                          Comment


                            #33
                            Re: Need replacements for Samxon HP

                            Originally posted by Uranium-235 View Post
                            You can go up that far for ripple? Yeah I was a bit concerned about using low esr caps for PSU's
                            You can go to the moon (and back) with the ripple current - it just states how much the cap can tolerate @ maximum rated voltage and temperature before it starts overheating internally. If the cap runs cooler, you can push even more ripple through it.

                            On that note, manufacturers rarely push the designs where a cap is stressed to near its maximum ripple current rating... but you never know, of course. In the case of the plasma board, they could have gone with CapXon KM simply because they were cheaper and just about "enough" for the circuit.

                            In regards to ESR, though - yeah, I try not to go too far anymore... if I can... unless the circuit wouldn't care about the changes (about half of the flyback/discontinuous designs don't, IME.)

                            Originally posted by Uranium-235 View Post
                            Also these samwha have this...interesting (melted?) plastic around one connector? They were sandwiched between two large fet hinksinks. Sign of going bad? Normal manufacturing for this sucky quality? Put my freaking iron on too long? (can't be that because the other one is fine)
                            O.o
                            Check them with a tester, if you have one.
                            I don't think you could have done it with your iron, unless you really REALLY kept it on there for a very long time and at very high temperature.
                            The melting also seems to be on the positive lead of both caps, which suggests possible internal arcing from a bad connection.

                            If you don't have a tester, give them a charge with a 20V adapter from a laptop, then disconnect them from laptop adapter and short the terminals on the caps. You should get a nice spark. Depending on the capacitance of the caps, it should be somewhat loud too.
                            P.S. don't try this with a screwdriver or tool you care about - the spark may tarnish & pit the surface slightly.
                            Last edited by momaka; 03-19-2022, 08:49 PM.

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                              #34
                              Re: Need replacements for Samxon HP

                              They seem to be pretty good graded (German-what's not to love?)

                              https://www.tomshardware.com/reviews...01,4193-5.html
                              Cap Datasheet Depot: http://www.paullinebarger.net/DS/
                              ^If you have datasheets not listed PM me

                              Comment

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