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Can You Identify This?

Discussion in 'Datasheets, Manuals and Component Identification' started by H2814D, Mar 19, 2022.

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  1. H2814D

    H2814D

    107
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    Nov 4, 2017
    Hi all, can anyone tell me what this is? I've looked for something similar, and plugged the numbers in a search, without luck. There are two of them right next to a multi voltage output voltage regulating component on an auto radio PCB. The numbering and markings you can see are the only markings on the component. When tested with a multi-meter in the circuit, they seem to test somewhat similar to a diode, but I understand that that is not the best way to test them. Anyone have an idea as to what they are anyway? Thanks in advance for your reply.
     

    Attached Files:

  2. Martaine2005

    Martaine2005

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    May 12, 2015
    They look like tantalum capacitors.
    Normally the markings are readable as top number is capacitance in micro farads and lower number is the maximum voltage.
    I don’t know what the circled number is, somebody will inform us both.

    Martin
     
    gafthehorse likes this.
  3. kellys_eye

    kellys_eye

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    1,320
    Jun 25, 2010
    Yup, 10uF 15V 'time bomb'.

    Tantalums are notorious for problem causing.........
     
    gafthehorse likes this.
  4. Martaine2005

    Martaine2005

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    May 12, 2015
    There’s an electronic rock group called The Prodigy. One of their best songs is called “Fire starter”.

    Martin
     
    gafthehorse likes this.
  5. Bluejets

    Bluejets

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    Oct 5, 2014
    As Martin says, if they were dodgy you wouldn't be able to read anything on the casing.
     
  6. H2814D

    H2814D

    107
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    Nov 4, 2017
    Time Bombs? What sort of "problems" would they cause?
     
  7. H2814D

    H2814D

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    Nov 4, 2017
    Dodgy? Does that mean I would be able to tell if they were bad because I WOULDN'T be able to read the numbers on the casing?
     
  8. H2814D

    H2814D

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    Nov 4, 2017
    Thanks, Martin. Now that you have identified them, I am finding them very easily now.
     
  9. bertus

    bertus Moderator

    2,568
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    Nov 8, 2019
    Hello,

    I have several times seen that those tantalium capacitors where burnt and created a short on the board.

    Bertus
     
  10. Martaine2005

    Martaine2005

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    May 12, 2015
    They have been known to burst into flames.

    Martin
     
  11. H2814D

    H2814D

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    Nov 4, 2017
    Oh. Got it. I removed both of them and they both tested out good as caps, so I can keep looking.
     
  12. kellys_eye

    kellys_eye

    4,770
    1,320
    Jun 25, 2010
    Randomly removing and testing parts is a long-winded way to a fault. What symptoms do you see and do you have any technical (schematics) information on the device?
     
  13. H2814D

    H2814D

    107
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    Nov 4, 2017
    :) Yep. It sure is. But when that is the only way you have to do things, because I DON'T have a schematic, that is what I have to do. I am limited to the test equipment I have available to me, which is the stuff I would need to test most components at the component level only. Multi-meter, transistor tester, ESR Meter, etc. I have a basic oscilloscope, but am not versed in its use.

    This is part of the Delco CDM I posted about a week ago. The symptoms are in that thread. You replied to it as well. I am still troubleshooting it without a schematic. I have a long wind. :D
     
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