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How do I test STR W6053S?

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  • buchman
    Badcaps Veteran
    • Aug 2015
    • 294
    • greece
    #1

    How do I test STR W6053S?

    I need to know if it is ok and works properly.

    Thanks guys.
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    Tags: None
    • olegeisler
      Senior Member
      • Dec 2016
      • 100
      • Denmark
      #2
      Re: How do I test STR W6053S?

      No simple way - but if you test with an ohmmeter from the pin that is separate, to the center pin of the group of 5 - no shorts = 99.999% it is OK

        Comment

        • capwizard
          Badcaps Legend
          • Jun 2016
          • 1991
          • USA
          #3
          Re: How do I test STR W6053S?

          You can test internal MOSFET (pin1-3) and power source (pin5-4) see if any low resistance exist.
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          Last edited by capwizard; 12-31-2016, 09:07 AM.

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            • buchman
              Badcaps Veteran
              • Aug 2015
              • 294
              • greece
              #4
              Re: How do I test STR W6053S?

              I am attaching a table of the connections.

              Unfortunately I am not familiar with these names and functions yet.
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                • buchman
                  Badcaps Veteran
                  • Aug 2015
                  • 294
                  • greece
                  #5
                  Re: How do I test STR W6053S?

                  Originally posted by capwizard
                  You can test internal MOSFET (pin1-3) and power source (pin5-4) if any low resistance exist.
                  with ohm meter? what should I see?

                    Comment

                    • capwizard
                      Badcaps Legend
                      • Jun 2016
                      • 1991
                      • USA
                      #6
                      Re: How do I test STR W6053S?

                      MOSFET (pin1-3): + - /15 M Ohm - + /389 k Ohm
                      power (pin5-4): + - /1.2M Ohm - +/864 k Ohm

                        Comment

                        • sdancer75
                          Member
                          • Jan 2017
                          • 22
                          • Greece
                          #7
                          Hi, I am trying to repair the specific SMPS. The STR W6053S seems okay (high resistance to all pins). What's the point of the diode if the low ohm resistor beside makes the circuit almost shorted?
                          1 Photo

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