Component identification

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  • lcdcaps1
    Badcaps Veteran
    • Oct 2011
    • 322

    #1

    Component identification

    Hi
    I cannot find any information on an sot-23 component. It is on a USB board. The markings are 23AX
    There is another sot-23 component next to this one and the markings are 1AM. I have found some information on this one but no information about substitutes
    If anyone has any ideas, please tell me.
    thanks so much​
    Attached Files
  • Robin21
    Member
    • Feb 2021
    • 45
    • the Netherlands

    #2
    Hi,

    i've found this:

    Click image for larger version

Name:	Screenshot 2025-05-09 140949.png
Views:	99
Size:	10.7 KB
ID:	3633304

    Comment

    • lotas
      Badcaps Legend
      • Jan 2016
      • 4550
      • Russia

      #3
      Most likely it's mosfet.

      Comment

      • lotas
        Badcaps Legend
        • Jan 2016
        • 4550
        • Russia

        #4
        Originally posted by Robin21
        Hi,

        i've found this:

        Click image for larger version

Name:	Screenshot 2025-05-09 140949.png
Views:	99
Size:	10.7 KB
ID:	3633304
        И ΠΊΠ°ΠΊ Π² этой схСмС Π±ΡƒΠ΄Π΅Ρ‚ ΠΈΠ³Ρ€Π°Ρ‚ΡŒ эту Ρ€ΠΎΠ»ΡŒ MicroPower Microprocessor Reset?
        Attached Files

        Comment

        • lcdcaps1
          Badcaps Veteran
          • Oct 2011
          • 322

          #5
          Originally posted by Robin21
          Hi,

          i've found this:

          Click image for larger version

Name:	Screenshot 2025-05-09 140949.png
Views:	99
Size:	10.7 KB
ID:	3633304
          Thanks but the markings are wong
          According to datasheet

          Comment

          • lcdcaps1
            Badcaps Veteran
            • Oct 2011
            • 322

            #6
            Originally posted by lotas
            Most likely it's mosfet.
            Seems so but which one and what substitute can I use
            Also what kind of scrap boards can these be found
            Thanks

            Comment

            • lcdcaps1
              Badcaps Veteran
              • Oct 2011
              • 322

              #7
              Some google and using google translate
              I found
              si2301
              irlml6402

              Could these be the same

              Comment

              • lotas
                Badcaps Legend
                • Jan 2016
                • 4550
                • Russia

                #8
                P- channel - AO3401, AO3407...

                Comment

                • lcdcaps1
                  Badcaps Veteran
                  • Oct 2011
                  • 322

                  #9
                  I found this
                  https://world.taobao.com/item/718073032302.htm

                  This shows it is si2301

                  Is si2301the same as or equivalent to AO3401, AO3407
                  Thanks
                  ​

                  Comment

                  • lotas
                    Badcaps Legend
                    • Jan 2016
                    • 4550
                    • Russia

                    #10
                    It has a lower amperage, and what about yours, is it broken (all terminals are shorted)?

                    Comment

                    • lcdcaps1
                      Badcaps Veteran
                      • Oct 2011
                      • 322

                      #11
                      Originally posted by lotas
                      It has a lower amperage, and what about yours, is it broken (all terminals are shorted)?
                      It is connected to the USB port and the USB port current is very low

                      Comment

                      • lotas
                        Badcaps Legend
                        • Jan 2016
                        • 4550
                        • Russia

                        #12
                        So maybe the problem is not in it, what does the multimeter show on its terminals, what is the resistance between the terminals?

                        Comment

                        • lcdcaps1
                          Badcaps Veteran
                          • Oct 2011
                          • 322

                          #13
                          Originally posted by lotas
                          So maybe the problem is not in it, what does the multimeter show on its terminals, what is the resistance between the terminals?
                          I think it has a burn mark on it but I am trying to test

                          Comment

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