Substitute for Mosfet AO4423L

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • leggot
    Senior Member
    • Oct 2014
    • 50
    • United States
    #1

    Substitute for Mosfet AO4423L

    Hi all,

    I need a replacement for a AO4423L mosfet, because the original part doesn't seem to be readily available?

    Are there any substitute parts that anyone could recommend?

    Datasheet:

    Thanks
    Tags: None
    • retiredcaps
      Badcaps Legend
      • Apr 2010
      • 9271
      #2
      Re: Substitute for Mosfet AO4423L

      http://www.ebay.com/itm/261053644668
      --- begin sig file ---

      If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

      We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

      Please do not post inline and offsite as they slow down the loading of pages.

      --- end sig file ---

        Comment

        • Longbow
          Badcaps Veteran
          • Jun 2011
          • 623
          • USA
          #3
          Re: Substitute for Mosfet AO4423L

          legot, perhaps you could show us a diagram of the circuit, or a description of what the FET does.
          Is it plugged in?

            Comment

            Previous template Next

            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
            • edugimeno
              Find substitute for mosfet in servo board of versacamm sp-540v plotter
              by edugimeno
              Hi There!
              I am currently serviciing a plotter versacamm sp-540v
              I found a shorted mosfet labeled J553 which corresponds with SJ-553s (surface mount)
              Neither local stores nor other webpages that are able to provide it before 1 month (only aliexpress, with 1 month delivery) can provide this part
              I need to find a substitute for it. Can anyone give me a hint on a part that I can use to replace it?

              Also, given the schematic Im attaching (pg 36, transsitor Q1) , does it make sense that the whole machine won't turn on when I press the POWER button on the panel? This...
              10-27-2022, 10:46 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
            • Loading...
            • No more items.
            Working...