Trying to Find a Transistor

Discussion in 'Power Electronics' started by Tom Walker, Jul 6, 2016.

  1. Tom Walker

    Thread Starter New Member

    Jul 6, 2016
    3
    0
    Hi Guys,

    I have an old land rover and the voltage regulator for the dipped headlights appears to have packed up and gone short circuit (headlights always on, very annoying). I have pulled the unit apart and my suspicion is that the transistor has shorted out as I have evidence of overheating in the tracks on the bottom of the PCB. Here is the link to a data sheet that I have found for the transistor

    http://www.semicon-data.com/transistor/tc/a0/A1293.html

    The transistor in question is shown in the picture, I can't seem to find a part on Farnell that exactly matches the same specifications, can anybody recommend a part that would be equivalent? I appear to have run out of my university knowledge of transistors!

    Thanks guys any information is exceedingly helpful!

    Tom
     
  2. AlbertHall

    Well-Known Member

    Jun 4, 2014
    1,878
    370
    TIP127 would be fine electrically, but It's a TO220 package and I'm not sure whether it would fit on that board. Have a look at the data sheet and get your ruler out ;)
     
  3. Tom Walker

    Thread Starter New Member

    Jul 6, 2016
    3
    0
    Amazing! Thanks mate, I will look at getting some. I've got the ruler out, its going to be a tight squeeze but I can make it fit!
     
  4. atferrari

    AAC Fanatic!

    Jan 6, 2004
    2,644
    759
    Maybe you did already but better make sure the pinout of both match.
     
  5. AlbertHall

    Well-Known Member

    Jun 4, 2014
    1,878
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    Pinouts do match.
     
    atferrari likes this.
  6. Tom Walker

    Thread Starter New Member

    Jul 6, 2016
    3
    0
    Awesome, thanks guys!
     
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