Identify this part

Discussion in 'General Electronics Chat' started by TexAvery, Apr 3, 2013.

  1. TexAvery

    Thread Starter Member

    Oct 7, 2009
    58
    0
    What is this component? Rectifier?
    [​IMG]
     
  2. JohnInTX

    Moderator

    Jun 26, 2012
    2,339
    1,022
  3. hexreader

    Active Member

    Apr 16, 2011
    250
    82
    Bridge rectifier.

    Converts AC to DC.

    You will see four leads underneath marked ~ ~ - +

    AC goes in at the two ~ leads
    DC comes out of the + and - leads

    EDIT: JohnInTx got there first
     
  4. tshuck

    Well-Known Member

    Oct 18, 2012
    3,531
    675
    Seconded.....

    Edit: Make that thirded...
     
  5. TexAvery

    Thread Starter Member

    Oct 7, 2009
    58
    0
    That what I thought, apparently when the 120vac. supply voltage is off for 15+ min. it does not function when supply voltage is applied again.
    I have found by heating the rectifier it then starts to work again, until supply voltage is off.
    Thanks for the info!
     
    Last edited: Apr 3, 2013
  6. debe

    Well-Known Member

    Sep 21, 2010
    946
    184
    If you used a hair dryer to heat the rectifier, there is a chance you heated the NTC thermistor (grey round object on the left of the pict). They are used as to limit surge current. It to may be faulty as the resistance is suposed to drop as its heated.
     
    Last edited: Apr 4, 2013
  7. TexAvery

    Thread Starter Member

    Oct 7, 2009
    58
    0
    That sounds more like the culprit. Thanks for saving me a second guess.
     
  8. praondevou

    AAC Fanatic!

    Jul 9, 2011
    2,936
    488
    I'm sure you meant a NTC. A PTC increases its resistance with rising temperature.
     
    debe and absf like this.
Loading...