New, badly faked Rubycon...

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  • robert
    Senior Member
    • Jan 2008
    • 69
    #1

    New, badly faked Rubycon...

    Just found this in a 12V 1.5A DVE brand PSU, because something was loose inside the case and making noise...

    Aside from the usual crap sonstruction (X-cap,MOV and heatsink left out, smaller diode instead of TO220 cased one), the output cap looked quite good, for abpout a second:

    Wait, Rubycon with this vent style? Wait, its got 2 layers of heatshrink?
    So i unsoldered it:

    shrinked it a bit too hot?


    Second PSU, same story, except for the final:


    Both of the inner caps are labeled ELNA and look quite a bit like it, from the vent and the rubber plug.
    But the elna catalog doesnt show a RJX nor a RJG series...
    So these probably are fake too...
    Attached Files
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    • relkin67
      Member
      • Sep 2007
      • 36
      #2
      Re: New, badly faked Rubycon...

      Those are Elna style vents. (Sorry I'm an idiot because I now see that you mentioned this & I can't figure out how to delete my post.)
      Last edited by relkin67; 02-10-2010, 05:10 PM.

        Comment

        • Wizard
          Badcaps Legend
          • Mar 2008
          • 2296
          #3
          Re: New, badly faked Rubycon...

          Also I see another cap behind the blue inductor coil that possibly be fake Samxon?

          Cheers, Wizard

            Comment

            • Topcat
              The Boss Stooge
              • Oct 2003
              • 16956
              • United States
              #4
              Re: New, badly faked Rubycon...

              definitely fakes.
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                Comment

                • kc8adu
                  Super Moderator
                  • Nov 2003
                  • 8832
                  • U.S.A!
                  #5
                  Re: New, badly faked Rubycon...

                  WTF!!!
                  a lot of work to fake some caps.btw i have seen koshin's with the elna style vent.post some pics of the bung too.

                    Comment

                    • Wizard
                      Badcaps Legend
                      • Mar 2008
                      • 2296
                      #6
                      Re: New, badly faked Rubycon...

                      Okay pull the Samxon cap (that one behind the blue coil) out and hold on it till after feb and contact Pope cap (Joe), he will NEED that so he can send it to his Samxon maker.

                      Cheers, Wizard

                        Comment

                        • c_hegge
                          Badcaps Legend
                          • Sep 2009
                          • 5219
                          • Australia
                          #7
                          Re: New, badly faked Rubycon...

                          Koshin usually have that type of vent
                          I love putting bad caps and flat batteries in fire and watching them explode!!

                          No wonder it doesn't work! You installed the jumper wires backwards

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                            Comment

                            • etnietering
                              Badcaps Veteran
                              • Apr 2009
                              • 379
                              • USA
                              #8
                              Re: New, badly faked Rubycon...

                              Wow, so, not only did they fake the manufacturer (twice), but they sold a 680uF @ 10v cap as a 1000uF @ 16v cap! Yikes! I wouldn't want anything like that in my equipment...

                                Comment

                                • japlytic
                                  Badcaps Legend
                                  • Oct 2005
                                  • 2086
                                  • Australia
                                  #9
                                  Re: New, badly faked Rubycon...

                                  That's what I call a case of "resleeving", which is removing the sleeve of a genuine (or fake) product and placing a new sleeve of a higher grade unit on the capacitor.
                                  My first choice in quality Japanese electrolytics is Nippon Chemi-Con, which has been in business since 1931... the quality of electronics is dependent on the quality of the electrolytics.

                                    Comment

                                    • robert
                                      Senior Member
                                      • Jan 2008
                                      • 69
                                      #10
                                      Re: New, badly faked Rubycon...

                                      The other cap is a G-LUXON 470u/16V.
                                      Primary cap is 10/400V, JUN FU on one, SAMWHA on the other.
                                      No fake here, i guess. What part would they fake a LUXON crap with?

                                      Sorry for no measurements, our RLC bridge blew up and is being sent to Agilent for repair.

                                        Comment

                                        • Wizard
                                          Badcaps Legend
                                          • Mar 2008
                                          • 2296
                                          #11
                                          Re: New, badly faked Rubycon...

                                          Whew. Really looked like it was.

                                          Cheers, Wizard

                                            Comment

                                            • Krankshaft
                                              Badcaps Legend
                                              • Jan 2007
                                              • 2328
                                              • USA
                                              #12
                                              Re: New, badly faked Rubycon...

                                              That's counterfeiters for you doing it half ass and not following through. If they removed the original sleeve and used a K vent it would be the perfect counterfeit.

                                              Did they really think nobody would notice the caps didn't have Rubycon's K vents?

                                              That vent style almost looks like the symbol for a lytic in schematics.

                                              They probably had the process automated removing the old sleeves would be too problematic for machinery. Plus there's no way counterfeiters are going to invest money creating a machine to remove sleeves that probably doesn't exist.

                                              They probably made a nice profit selling 680ufs where the manufacturer specified 1000uf in large quantities. They needed to modify the value so while they were at it they probably figured it might as well be a reputable brand.
                                              Last edited by Krankshaft; 02-11-2010, 04:18 PM.
                                              Elements of the past and the future combining to make something not quite as good as either.

                                                Comment

                                                • PCTechNY23
                                                  Member
                                                  • Oct 2009
                                                  • 26
                                                  #13
                                                  Re: New, badly faked Rubycon...

                                                  The font on the name is pretty good but the 0's are a bit off. The dead giveaway is the vent and obvious double sleave. Any pics of the bung? lol that sounds bad.

                                                    Comment

                                                    • POM_MJ
                                                      Badcaps Veteran
                                                      • Aug 2009
                                                      • 228
                                                      #14
                                                      Re: New, badly faked Rubycon...

                                                      ELNA RJG series could be real? and possibly equivalent to RJB series?
                                                      because I've found some publish data at elna-america web site

                                                      RJG Series - Durability (high temperature charge)
                                                      http://www.elna-america.com/c_g10.htm

                                                      RJG Series - High temperature and low temperature characteristics
                                                      http://www.elna-america.com/c_g11.htm

                                                      RJG Series - Frequency characteristic
                                                      http://www.elna-america.com/c_g12.htm
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