Snubber Capacitor Vs Class X2 Capacitor

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  • Lee Majors
    Member
    • Oct 2023
    • 14
    • Australia
    #1

    Snubber Capacitor Vs Class X2 Capacitor

    Is a snubbing capacitor fine to use in place of an X2 suppression safety? The only real difference I see is that the dV/dt is around 3 times higher than the recommended Class X2. Is this a positive or negative issue in this turntable audio device? See C601
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    • stj
      Great Sage 齊天大聖
      • Dec 2009
      • 30985
      • Albion
      #2
      Re: Snubber Capacitor Vs Class X2 Capacitor

      a big polypropylene cap should be fine - you have the resistor to limit current

        Comment

        • Lee Majors
          Member
          • Oct 2023
          • 14
          • Australia
          #3
          Re: Snubber Capacitor Vs Class X2 Capacitor

          Oh really, ok great! Well, it's definitely a very big polypropylene hehe. CORNELL DUBILIER 940C20S47K-F. 630 VAC 2kV VDC, dv /dt 1.712kV/µs, Peak current 80A.

          I assume this will suppress noise, EMI etc?

            Comment

            • eccerr0r
              Solder Sloth
              • Nov 2012
              • 8697
              • USA
              #4
              Re: Snubber Capacitor Vs Class X2 Capacitor

              C601 doesn't suppress much noise no matter what cap you put there. It just saves your switch and that bit of noise your switch makes.

                Comment

                • Lee Majors
                  Member
                  • Oct 2023
                  • 14
                  • Australia
                  #5
                  Re: Snubber Capacitor Vs Class X2 Capacitor

                  Oh Ok, That is good to know. I guess the bulk capacitor after the bridge rectifier is doing all the ripple smoothing and noise suppression. Thanks, I'm learning some good stuff!

                    Comment

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