Ceramic Capacitor ID Help

Discussion in 'General Electronics Chat' started by TrevorFormosa, Feb 25, 2016.

  1. TrevorFormosa

    Thread Starter New Member

    Feb 25, 2016
    12
    0
    Hi have a Ceramic capacitor in an charger i need to replace. its split right down the middle I cant figure out the id on it. The only numbers on there is the first line says 240 the second line says L012. Can someone please tell me what capacitor i need to replace this and i can buy it on amazon!
    Thanks
     
  2. #12

    Expert

    Nov 30, 2010
    16,321
    6,818
    2,4,0 would say 24 pf to some people, but nobody wants to stick their neck out without more information. 24pf is pretty small, high frequency stuff, out of range of most switching power supplies. How about a photo?
     
  3. TrevorFormosa

    Thread Starter New Member

    Feb 25, 2016
    12
    0
    I was feeling the same on the 24pf but I just don't know about that. I will upload a pic in a minute
     
  4. Sinus23

    Member

    Sep 7, 2013
    163
    411
    That is a pretty big "24pF"? ceramic cap to have all those numbers on it. Like #12 said a photo would help.
     
  5. TrevorFormosa

    Thread Starter New Member

    Feb 25, 2016
    12
    0
  6. #12

    Expert

    Nov 30, 2010
    16,321
    6,818
    That looks wrong. I'm thinking a power line protector of some sort. Back up the camera a bit so we can see what is nearby. Maybe get a better clue.
     
  7. TrevorFormosa

    Thread Starter New Member

    Feb 25, 2016
    12
    0
    IMG_20160225_141026858.jpg BCCB7373-A337-414E-888A-2158532A1037.png

    Sorry poor pictures I hav e left the shop for the day and have another employee sending me pictures.
     
  8. TrevorFormosa

    Thread Starter New Member

    Feb 25, 2016
    12
    0
    PS they ripped it out... So all there is is two dots beside those neutral wires there
     
  9. TrevorFormosa

    Thread Starter New Member

    Feb 25, 2016
    12
    0
    Could it possibly be a varistor? But of what type I found a L06 varistor but no L012. I don't know very much about them.
     
  10. seanstevens

    Member

    Sep 22, 2009
    25
    1
    It looks like a 240V varistor. It also looks like your device had a voltage surge making the varistor to open up like that. As varistors are over voltage/surge protector, it must have had a big surge to do that to it.

    If the varistor reacted fast enough, your fuse would have gone and hopefully nothing else downstream is damaged by the surge. If no other damaged then the device should work without that part (as a test only), however the varistor should be replaced to take care of the next surge. If the unit doesnt work without the part then other parts may be damaged.

    BW, the varistor would sit between live and neutral, if it is in series it might be thermistor to reduce inrush current.
     
  11. TrevorFormosa

    Thread Starter New Member

    Feb 25, 2016
    12
    0
    So if I jumper this area and I have success cab I just throw in any 240 varistor?
     
  12. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,347
    Hello,

    The datasheet says it is a PTC or polyfuse.

    Bertus
     
  13. TrevorFormosa

    Thread Starter New Member

    Feb 25, 2016
    12
    0
    Hi bertus. I got a "data sheet cannot be displayed" error. Any other way of sourcing?
    Thanks!
     
  14. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,347
    Hello,

    Strange it is a basic PDF file.
    I have copied the first page from the datasheet as an image:

    240_L012.png

    Bertus
     
    Sinus23 likes this.
  15. TrevorFormosa

    Thread Starter New Member

    Feb 25, 2016
    12
    0
    Thanks Bertus. How does one go about purchasing something like this. They are not on Amazon as far as I saw
     
  16. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,347
  17. TrevorFormosa

    Thread Starter New Member

    Feb 25, 2016
    12
    0
    Well the way i understand it is the customer has a really old Honda generator. He has had problems in the past with these charger inverters due to his generator. I am recommending him a new one
     
  18. TrevorFormosa

    Thread Starter New Member

    Feb 25, 2016
    12
    0
  19. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,347
    Hello,

    The difference is the shape of the legs:

    LVR012_differences.png

    Bertus
     
  20. ian field

    Distinguished Member

    Oct 27, 2012
    4,415
    784
    Probably something pretty drastic to do that to a PTC thermistor, I'd be looking for what caused it before just bunging another one in.
     
Loading...