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Fish Caps

Discussion in 'Electronic Basics' started by [email protected], Jan 2, 2005.

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  1. Guest

    About a year ago I used to work for a small fire/gas detection company
    in the UK. Often we would play a prank by connecting capacitors
    backwards across a 30V/10A psu to make them explode. We had a box of
    500 or so Philips 100uF,40V axial electrolytic capacitors. One day we
    decided to try one of these buggers and were suprised by the loud
    explosion and absolutely awful stench of rotten fish (yes FISH)! The
    smell was so bad that it would linger in our 5mx5m production room for
    the rest of the day - we were laughing histerically about this! (we
    gave these caps the nickname 'fish caps')

    My main reason for posting is what the hell was in those capacitors
    that made them smell so bad? I am aware that most aluminium
    electrolytic capacitors contain ammonium perborate and ethylene glycol
    but they *never* smell anything like those Philips ones! IIRC the date
    code on the box was marked 1992.

    Is it possible that they contain PCB's or some other carcinogenic

    Here's a pic:
  2. Kim  Sleep

    Kim Sleep Guest

    Well you better hope that they don't have PCB's or some other carcinogenic
    substances if you spent the entire day in your 5x5 little room, breathing
    in the smell! long, its been nice knowing ya![/QUOTE]
  3. Guest

  4. Guest

    Amazing - they actually use a derivative of fish oil in these
    capacitors! Now that explains the awful smell.
  5. Guest

    I happened to blow up a red sanyo os-con at home by accident this time.
    I had put it in backwards. There was a muffled 'pop' and green smoke
    was coming out of the case through the ventilation holes :) Oh my god
    you can't describe how bad the acrid smell is.
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