Can someone help me with finding one of these mosfet thanks

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • sam_sam_sam
    Badcaps Legend
    • Jul 2011
    • 6039
    • USA

    #1

    Can someone help me with finding one of these mosfet thanks

    I seem to put this in the wrong forum can you move it for me thanks

    Here is the mosfet in question

    I can not figure out the part number on this mosfet

    This is on a mig welder that I have repair about 2 years ago because the wire feed stop working
    got working again now the controller will not power ON

    There is another mosfet just below that goes to the main power supply and it looks like this one controls it

    I have not trace it out completely yet
    Attached Files
    Last edited by sam_sam_sam; 06-22-2019, 08:57 AM.
  • R_J
    Badcaps Legend
    • Jun 2012
    • 9535
    • Canada

    #2
    Re: Can someone help me with finding one of these mosfet thanks

    I can't make out the number but it looks similar to a IRFD120, It is a HVMDIP case style, It seems to be made by the old International Rectifier and could be custom number
    The part number should be the top number "109" normally it would be irfxxx

    here is the Digikey power mosfet, 4-dip,Hexdip,HVMDIP list https://www.digikey.com/products/en/...=1&pageSize=25
    Last edited by R_J; 06-22-2019, 09:52 AM.

    Comment

    • mariushm
      Badcaps Legend
      • May 2011
      • 3799

      #3
      Re: Can someone help me with finding one of these mosfet thanks

      A small tip: wet your finger and drag the finger over surface of the chip. Text should be more readable.
      Or: clean with isopropyl alcoohol then rub some writing chalk
      or: take photo with a blue/cold white led lightning the chip at sharp angle.

      It's an IR part, can see I AND R with logo between (a diode and stuff)
      End looks like 07 or 87 to me.
      so maybe IRF*07?

      does look like hvmdip package, as irfd110: https://cdn.badcaps-static.com/pdfs/...fac706c507.pdf
      Last edited by mariushm; 06-22-2019, 09:40 AM.

      Comment

      • sam_sam_sam
        Badcaps Legend
        • Jul 2011
        • 6039
        • USA

        #4
        Re: Can someone help me with finding one of these mosfet thanks

        Here is a better picture of it

        I can not find anything on it
        Attached Files

        Comment

        Related Topics

        Collapse

        • Jane
          How do you test MOSFET in laptops ?
          by Jane
          I tried to use this method:

          Testing an N-channel MOSFET:

          Step 1: Discharge the Gate (turn off the MOSFET)
          Place the black probe (COM) on the Source (S) and the red probe on the Drain (D). The multimeter should show no continuity (high resistance or "OL" – open line).
          Then, touch the black probe to the Source (S) and the red probe to the Gate (G). This discharges any stored charge in the Gate, turning the MOSFET off.

          Step 2: Charge the Gate (turn on the MOSFET)
          Now, place the red probe on the Gate (G) and the black probe on the
          ...
          09-27-2024, 03:31 AM
        • Nooy
          VGA MOSfet permanently shorted and loss of MOSfet pad
          by Nooy
          Hello everyone, I recently found this badcaps site and super Learn Electronics Repair youtube channel. And I wanted to learn how to troubleshoot power supplies and VGA cards and how to practice soldering, since I already have a properly defective piece of them. I am currently trying to solve two problems:

          I have a Gigabyte GV-RX460WF2OC-4GD type card. I managed to find the faulty MOSfet (AON6414A) on it, which I replaced. The card starts up, but after about half a minute, the MOSfet in the same position will be shorted again. Is it possible that the PWM controller driving the MOSfet...
          02-14-2024, 02:26 AM
        • AppleLover123
          Asus X712EA 3 volts after the first mosfet
          by AppleLover123
          Hey guys,

          i have a asus motherboard here and as the title says after the first mosfet (in the picture) there is nothing more than 3.15v.
          I injected 19v and max. 1 amp at the charging port and there is not voltage drop or smth. It's just taking 19v and 1 milliamp.
          Then i tried to inject 19v and max 1amp after the current sensor and there it first takes 19v and 4 milliamps and after 2 seconds it is taking nothing (no current).
          I measured on the coils on board everything seems fine. Also the main power rail is not shorted (infinite resistance).
          Now i thought something...
          12-15-2024, 07:49 AM
        • MicroSMD Lab
          ASUS ROG Zephyrus GPU Mosfet repeat failure
          by MicroSMD Lab
          The board number is GU502DU. I repaired this a couple weeks ago and it came back with the same issue, same mosfet failed (PQH9201). I'm hoping that the GPU was spared this time.
          I used the same replacement part (purchased from Mouser) and I'm certain the soldering was done properly since it took just as much effort to remove as before. What could cause this same mosfet to fail? I'm thinking if it was unsuitable then the others would fail too. I looked for similar failures on YTube and the mosfet was replaced with AOE6930 in one instance and AOE6932 in the other but it's possible that the...
          01-10-2024, 06:36 AM
        • Scotchmist
          Asus GA502D keeps blowing mosfet
          by Scotchmist
          I have an Asus GA502D, it had a blown mosfet which I replaced and the laptop booted into windows, a few mins later it shut off, the same mosfet was blown. I thought maybe just a bad mosfet but same thing happened again, a few mins in windows and shuts off.

          I have removed the mosfet and can run the laptop no problem

          The MOSFET is FDPC5018SG

          Can anyone point me in the direction of what could be the cause of this, could it be the controller rt3663bc?

          Thanks
          08-24-2024, 02:23 PM
        • Loading...
        • No more items.
        Working...