What are these mystery damaged SMD components?

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  • dfear
    Senior Member
    • Mar 2013
    • 53
    • UK
    #1

    What are these mystery damaged SMD components?

    In another thread, I asked for help to identify another component from the same damaged PCB.

    I am asking for help to identify what the two damaged components above the op-amp could be.

    There are no markings visible on the components as that's the part of both components that is missing. The top one seems to have a white stripe on one side. The bottom one has feint markings of a white stripe which could of been burnt off when the component failed, or the marking was on the other end, which is now missing.

    Thanks for any help given.
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    • PeteS in CA
      Badcaps Legend
      • Aug 2005
      • 3578
      • USA, Unsure of Planet
      #2
      Re: What are these mystery damaged SMD components?

      They could be rectifiers, but they look more like tantalum capacitors. Tantalum caps don't like over or reversed voltages.
      PeteS in CA

      Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
      ****************************
      To kill personal responsibility, initiative or success, punish it by taxing it. To encourage irresponsibility, improvidence, dependence and failure, reward it by subsidizing it.
      ****************************

        Comment

        • stj
          Great Sage 齊天大聖
          • Dec 2009
          • 30941
          • Albion
          #3
          Re: What are these mystery damaged SMD components?

          they are between the black & red translucent wires - what are those for?

            Comment

            • dfear
              Senior Member
              • Mar 2013
              • 53
              • UK
              #4
              Re: What are these mystery damaged SMD components?

              Originally posted by stj
              they are between the black & red translucent wires - what are those for?
              Input power from a 24V? battery.

                Comment

                • stj
                  Great Sage 齊天大聖
                  • Dec 2009
                  • 30941
                  • Albion
                  #5
                  Re: What are these mystery damaged SMD components?

                  then the parts could be transient suppressor diodes (transorbs)

                    Comment

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