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

    Distinguished Member

    Jun 4, 2014
    2,534
    515
    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
    2,689
    801
    Maybe you did already but better make sure the pinout of both match.
     
  5. AlbertHall

    Distinguished Member

    Jun 4, 2014
    2,534
    515
    Pinouts do match.
     
    atferrari likes this.
  6. Tom Walker

    Thread Starter New Member

    Jul 6, 2016
    3
    0
    Awesome, thanks guys!
     
Loading...