Announcement

Collapse
No announcement yet.

Can someone help me with finding one of these mosfet thanks

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    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.
    9 PC LCD Monitor
    6 LCD Flat Screen TV
    30 Desk Top Switching Power Supply
    10 Battery Charger Switching Power Supply for Power Tool
    6 18v Lithium Battery Power Boards for Tool Battery Packs
    1 XBox 360 Switching Power Supply and M Board
    25 Servo Drives 220/460 3 Phase
    6 De-soldering Station Switching Power Supply 1 Power Supply
    1 Dell Mother Board
    15 Computer Power Supply
    1 HP Printer Supply & Control Board * lighting finished it *


    These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

    1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
    2 Hem Saw Computer Stack Board

    All of these had CAPs POOF
    All of the mosfet that are taken out by bad caps

    #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


      #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


        #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
        9 PC LCD Monitor
        6 LCD Flat Screen TV
        30 Desk Top Switching Power Supply
        10 Battery Charger Switching Power Supply for Power Tool
        6 18v Lithium Battery Power Boards for Tool Battery Packs
        1 XBox 360 Switching Power Supply and M Board
        25 Servo Drives 220/460 3 Phase
        6 De-soldering Station Switching Power Supply 1 Power Supply
        1 Dell Mother Board
        15 Computer Power Supply
        1 HP Printer Supply & Control Board * lighting finished it *


        These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

        1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
        2 Hem Saw Computer Stack Board

        All of these had CAPs POOF
        All of the mosfet that are taken out by bad caps

        Comment

        Working...
        X