"Polymer" capacitor ID question

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  • etnietering
    Badcaps Veteran
    • Apr 2009
    • 379
    • USA
    #1

    "Polymer" capacitor ID question

    Hey everybody, long time no post!

    My current project is to build myself a new storage server, since my old one is nearly full. The case I ordered comes with 3 SATA backplanes, each of which can connect to 4 disks. Each backplane has a total of 10 capacitors on it (one for each drive +12v, one for each drive +5v, and one for each voltage at the power connectors). The caps are all sleeveless, ventless cans with blue writing that says:

    728
    330
    16

    I figure they're all 330uF @ 16v, and the lack of a vent leads me to think that they're polymer, or at least pretending to be. The lack of identifying marks makes me a bit suspicious. The size is 10mm dia x 11.5mm h, with a 5mm lead spacing.

    The case is a NORCO RPC-2212 2U rackmount. I got a 400W Seasonic 80 Plus Gold PSU for it, so I'm not too concerned about the power quality, but I'm curious about these caps.

    Here's the backplanes:


    And here's a close up of a few of the caps:


    Any ideas?

    Thanks!
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    • mockingbird
      Badcaps Legend
      • Dec 2008
      • 5484
      • -
      #2
      Re: "Polymer" capacitor ID question

      According to this page, they're made by Sungho Electronics.

        Comment

        • etnietering
          Badcaps Veteran
          • Apr 2009
          • 379
          • USA
          #3
          Re: "Polymer" capacitor ID question

          You appear to be correct. Thank you very much! I should bookmark that website...

          And I guess they're real polymers, too.

            Comment

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