List of Bad Polymer Caps

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • PCBONEZ
    Grumpy Old Fart
    • Aug 2005
    • 10661
    • USA
    #1

    List of Bad Polymer Caps

    And the first contestant is; ELCON, EPL Series.

    https://www.badcaps.net/forum/showthread.php?p=160946

    They even bloat!
    https://www.badcaps.net/forum/attach...3&d=1303094863

    http://www.tw-elcon.com/en/product.php#
    .
    Bottom of this page mentions "Samcon-Elcon"
    http://www.tw-elcon.com/en/index.php

    Which takes us here...
    http://www.samcon-hk.com/
    To see the data sheets...

    .
    Last edited by PCBONEZ; 04-18-2011, 11:25 PM.
    Mann-Made Global Warming.
    - We should be more concerned about the Intellectual Climate.
    -
    Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
    - Dr Seuss
    -
    You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
    -
    Tags: None
    • Topcat
      The Boss Stooge
      • Oct 2003
      • 16956
      • United States
      #2
      Re: List of Bad Polymer Caps

      it will be interesting to see what starts to show up in this thread in the future...
      <--- Badcaps.net Founder

      Badcaps.net Services:

      Motherboard Repair Services
      ----------------------------------------------
      Badcaps.net Forum Members Folding Team
      http://folding.stanford.edu/
      Team : 49813
      Join in!!
      Team Stats

        Comment

        • Uranium-235
          Comrade Glimmer
          • Aug 2007
          • 5042
          • US
          #3
          Re: List of Bad Polymer Caps

          I thought polymers explode, don't bloat. Those might be lytics in a polymer casing
          Cap Datasheet Depot: http://www.paullinebarger.net/DS/
          ^If you have datasheets not listed PM me

            Comment

            • c_hegge
              Badcaps Legend
              • Sep 2009
              • 5219
              • Australia
              #4
              Re: List of Bad Polymer Caps

              They bloat, then explode, whereas lytics just vent.

              Originally posted by Topcat
              it will be interesting to see what starts to show up in this thread in the future...
              Assuming the thread doesn't die before we get too many. Sticky maybe?

              I have seen pictures of Apaq polys on ASUS motherboard exploded before. I'll see if I can dig it up.

              EDIT: Not the one I was thinking of, but here's one.
              Attached Files
              Last edited by c_hegge; 04-19-2011, 02:36 AM. Reason: Added attachment
              I love putting bad caps and flat batteries in fire and watching them explode!!

              No wonder it doesn't work! You installed the jumper wires backwards

              Main PC: Core i7 3770K 3.5GHz, Gigabyte GA-Z77M-D3H-MVP, 8GB Kingston HyperX DDR3 1600, 240GB Intel 335 Series SSD, 750GB WD HDD, Sony Optiarc DVD RW, Palit nVidia GTX660 Ti, CoolerMaster N200 Case, Delta DPS-600MB 600W PSU, Hauppauge TV Tuner, Windows 7 Home Premium

              Office PC: HP ProLiant ML150 G3, 2x Xeon E5335 2GHz, 4GB DDR2 RAM, 120GB Intel 530 SSD, 2x 250GB HDD, 2x 450GB 15K SAS HDD in RAID 1, 1x 2TB HDD, nVidia 8400GS, Delta DPS-650BB 650W PSU, Windows 7 Pro

                Comment

                • PCBONEZ
                  Grumpy Old Fart
                  • Aug 2005
                  • 10661
                  • USA
                  #5
                  Re: List of Bad Polymer Caps

                  Originally posted by Uranium-235
                  I thought polymers explode, don't bloat. Those might be lytics in a polymer casing
                  I've been looking at the chemistry they use.
                  Organic Polymer and [true] Solid Polymer are actually quite a bit different.
                  The Organic types can form Hydrogen inside just like Lytics.
                  [Which may be why some 'polymer' have vents.]
                  Depending on specifics the Organics can also get pretty toxic if they overheat.
                  .
                  Mann-Made Global Warming.
                  - We should be more concerned about the Intellectual Climate.
                  -
                  Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
                  - Dr Seuss
                  -
                  You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
                  -

                    Comment

                    • Rulycat
                      Badcaps Veteran
                      • Apr 2010
                      • 724
                      • United Kingdom
                      #6
                      Re: List of Bad Polymer Caps

                      Do these respond to heat in the same way electrolytics do? Less heat, less chance of kaputing?

                        Comment

                        • Per Hansson
                          Super Moderator
                          • Jul 2005
                          • 5895
                          • Sweden
                          #7
                          Re: List of Bad Polymer Caps

                          Originally posted by PCBONEZ
                          And the first contestant is; ELCON, EPL Series.

                          https://www.badcaps.net/forum/showthread.php?p=160946

                          They even bloat!
                          Yea but the owner of that card linked above said he cooked it in the oven with the caps installed so no wonder they failed...
                          "The one who says it cannot be done should never interrupt the one who is doing it."

                            Comment

                            • PCBONEZ
                              Grumpy Old Fart
                              • Aug 2005
                              • 10661
                              • USA
                              #8
                              Re: List of Bad Polymer Caps

                              Oh Hell, - Delete this whole thing.
                              - Or at least change the title so the title can be used for said list.
                              .
                              By the time I saw photos I forgot he baked it.
                              Mann-Made Global Warming.
                              - We should be more concerned about the Intellectual Climate.
                              -
                              Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
                              - Dr Seuss
                              -
                              You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
                              -

                                Comment

                                • Rulycat
                                  Badcaps Veteran
                                  • Apr 2010
                                  • 724
                                  • United Kingdom
                                  #9
                                  Re: List of Bad Polymer Caps

                                  Still would be good to keep a list of bad polymers though.

                                    Comment

                                    • PCBONEZ
                                      Grumpy Old Fart
                                      • Aug 2005
                                      • 10661
                                      • USA
                                      #10
                                      Re: List of Bad Polymer Caps

                                      Agreed, but this doesn't go in it.
                                      Mann-Made Global Warming.
                                      - We should be more concerned about the Intellectual Climate.
                                      -
                                      Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
                                      - Dr Seuss
                                      -
                                      You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
                                      -

                                        Comment

                                        Previous template Next

                                        Related Topics

                                        Collapse
                                        • Perry Babin
                                          How do organic polymer caps compare to liquid electrolytic for reliability
                                          by Perry Babin
                                          I have a situation where a power supply is commonly abused and the 12v supply caps take a beating. They don't commonly fail but they run hot. I was thinking about going from a liquid electrolytic (Panasonic FC and Nichicon HE) to an organic polymer. The values have been 330uF. I typically use a higher-than-needed voltage to get a lower ESR. The supply is operated from 12v.

                                          If not organic polymer, what would be the caps that could take the most abuse?
                                          Yesterday, 04:04 PM
                                        • eryjus
                                          Heathkit IO-4205 Power Supply Caps
                                          by eryjus
                                          Hello,

                                          First, I am a complete noob with high voltage stuff. I'm learning, but I need help by someone looking over my shoulder.

                                          I recently came into posession of a Heathkit IO-4205 5MHz Dual Trace Oscilloscope. The documentation is copyright 1978. I'm told it works.

                                          I opened it up to check the caps before I applied power, and found the following black caps and wanted to know what they were. They are on the power supply board. I was able to read the name and model and came up with, "Nytronics 162J-1, 0.1uF, 20% tolerance, 2000VDC."
                                          ...
                                          05-10-2023, 11:21 AM
                                        • Paxman_Swede
                                          Identifying caps on an old Zoom 9000
                                          by Paxman_Swede
                                          Hello!

                                          I have two projects on my work bench. One is a friends dead JBL Xtreme speaker with a blown voltage regulator and corresponding bulged and shorted cap. That cap has clear markings so I know what replacement I need for it.

                                          The other project however is a whole different deal. It's a Zoom 9000 guitar effect from the 90th that has developed a devil hound howl when there is no input from the guitar. I'm guessing caps problem. So, since I don't really use this effect anymore I thought it would be a perfect project to learn on.

                                          I have studied the board and...
                                          01-14-2025, 09:51 AM
                                        • captain150
                                          Help with switching power supply caps
                                          by captain150
                                          I'm trying to repair two old VCRs, they both have bad caps. One has leaky ones, the other would barely run until I subbed in some caps from another power supply I had laying around (though they are the wrong values). This vcr works for an hour or two, but then the power supply starts whining and the picture gets lines in it. I didn't replace all the secondary caps, so another voltage might still be problematic, or the values I used are too far off.
                                          I've been on mouser and digikey but the options are a bit overwhelming. I just need some new ones that will work. They don't need to be top quality,...
                                          03-16-2025, 07:34 PM
                                        • Foetuss
                                          Gigabyte GA-6OXT :: caps question
                                          by Foetuss
                                          Good evening

                                          I recently aquired a rev 1.1 Gigabyte 60XT, and was suprised of the amount of leaking caps for a motherboard of the P3 era. Especially the way the 330µf caps seems like the housing discolored even.
                                          Now, there are some 3300µF 6.3V KZG series around the CPU. Would it be OK to replace them with something like EEUFR1A332 ? (Panasonic FR 3300µF 10V). Or was this board designed around very low ESR caps?

                                          But I was also suprised about the bigger boys, which are 330µF 25V.
                                          Could it be they used 25V caps because they were cheaper / available at that time?...
                                          02-11-2025, 12:22 PM
                                        • Loading...
                                        • No more items.
                                        Working...