Help to identify the SMD

Discussion in 'General Electronics Chat' started by MyQuest, May 23, 2014.

  1. MyQuest

    Thread Starter New Member

    May 23, 2014
    4
    0
    Hello All,
    Can someone please help me to identify the SMD components marked in the attached picture. It seems to be a SMD resistor but I have not seen the likes of this ever. This is from a temperature control circuit board for a hot tub. Any help will be appreciated. It has a weird “:” character in the symbol.

    Thanks.
    IMG_20140517_141615.jpg

    IMG_20140517_141643.jpg
     
  2. #12

    Expert

    Nov 30, 2010
    16,298
    6,811
    I'd call that 250 ohms. Is there enough left to measure it?
     
  3. MyQuest

    Thread Starter New Member

    May 23, 2014
    4
    0
    Thanks for your reply #12. Measuring shows no reading. it is blown.
     
  4. #12

    Expert

    Nov 30, 2010
    16,298
    6,811
    I guess you have some choices. Either find the schematic or try to see what's connected to the suspect to get a clue whether 250 ohms seems reasonable.

    For instance, if it goes to an LED and the power supply is between 5V and 10V, it's probably 250 ohms.
     
  5. t06afre

    AAC Fanatic!

    May 11, 2009
    5,939
    1,222
    Your board look like it has been subjected to water damage in a corrosive environment:eek: In that case it could be better just to get a new board.
     
  6. MyQuest

    Thread Starter New Member

    May 23, 2014
    4
    0
    It has indeed been water dameged. I have ordered a replacement but it will not reach until after 3 weeks!
     
  7. MrChips

    Moderator

    Oct 2, 2009
    12,446
    3,362
    1872 = 18700
    8251 = 8250
     
    MyQuest likes this.
  8. MyQuest

    Thread Starter New Member

    May 23, 2014
    4
    0
    Many thanks MrChips. You were spot on and it is all fixed now. :)
     
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