Just Curious

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  • RHodg57
    Trusted Tech

    100+ Posts
    • Dec 2013
    • 191
    #1

    Just Curious

    Attached is a photo of a modular jack pcb off of an IR1025if copier.

    There is a component I tried to find out what it is on the upper right side of the photo.

    I have replaced a few of these boards over the years due to failures.

    Not looking to buy a component and fix them. The PCB is cheap and still available. I just can't find

    any information on that part. It is labeled as AR2 and that does not come up on google searchs.

    Any Ideas?
    Attached Files
    Tags: component, find, pcb, photo
    • Phil B.
      Field Supervisor

      10,000+ Posts
      • Jul 2016
      • 22808
      #2
      Re: Just Curious

      Originally posted by RHodg57
      Attached is a photo of a modular jack pcb off of an IR1025if copier.

      There is a component I tried to find out what it is on the upper right side of the photo.

      I have replaced a few of these boards over the years due to failures.

      Not looking to buy a component and fix them. The PCB is cheap and still available. I just can't find

      any information on that part. It is labeled as AR2 and that does not come up on google searchs.

      Any Ideas?
      ummmm Check your PARTS MANUAL?

        Comment

        • RHodg57
          Trusted Tech

          100+ Posts
          • Dec 2013
          • 191
          #3
          Re: Just Curious

          The parts manual does not show components only the pcb. But Thanks..

            Comment

            • livancicm
              Trusted Tech

              100+ Posts
              • Sep 2008
              • 103
              #4
              Re: Just Curious

              discharge tube

                Comment

                • allan
                  RTFM!!

                  5,000+ Posts
                  • Apr 2010
                  • 5445
                  #5
                  Re: Just Curious

                  No printing on that tube?
                  Whatever

                    Comment

                    • ZOOTECH
                      Senior member of CRS

                      Site Contributor
                      2,500+ Posts
                      • Jul 2007
                      • 3381
                      #6
                      Re: Just Curious

                      Originally posted by RHodg57
                      Attached is a photo of a modular jack pcb off of an IR1025if copier.

                      There is a component I tried to find out what it is on the upper right side of the photo.

                      I have replaced a few of these boards over the years due to failures.

                      Not looking to buy a component and fix them. The PCB is cheap and still available. I just can't find

                      any information on that part. It is labeled as AR2 and that does not come up on google searchs.

                      Any Ideas?
                      It's an electronically controlled relay is my best guess.
                      "You can't trust your eyes, if your mind is out of focus" --

                        Comment

                        • allan
                          RTFM!!

                          5,000+ Posts
                          • Apr 2010
                          • 5445
                          #7
                          Re: Just Curious

                          Its a surge absorber.
                          Helps for high voltages above 3.5KV. For lightning.
                          Whatever

                            Comment

                            • ZOOTECH
                              Senior member of CRS

                              Site Contributor
                              2,500+ Posts
                              • Jul 2007
                              • 3381
                              #8
                              Re: Just Curious

                              Like a fuse, I suspect.

                              Thank you, allen, I stand corrected.
                              Last edited by ZOOTECH; 03-21-2020, 08:34 AM.
                              "You can't trust your eyes, if your mind is out of focus" --

                                Comment

                                • allan
                                  RTFM!!

                                  5,000+ Posts
                                  • Apr 2010
                                  • 5445
                                  #9
                                  Re: Just Curious

                                  Can be compared to a MOV(metal oxide varistor) I think. a MOV has a high resistance in normal conditions and will reduce its resistance as the voltage goes over line voltage.
                                  Almost the opposite of a fuse. Will close a path between live and neutral/earth if the voltage gets to high.
                                  That closed path will cause a fuse on the live side to blow. After the surge the fuse can be replaced and all should be well.

                                  Not entirely sure how the glass tube does its thing as the circuit its in is a 48V low current circuit.

                                  Hey i was not far off found this.
                                  Gas Discharge Arrestors | HowStuffWorks
                                  Whatever

                                    Comment

                                    • RHodg57
                                      Trusted Tech

                                      100+ Posts
                                      • Dec 2013
                                      • 191
                                      #10
                                      Re: Just Curious

                                      Okay Thanks!!

                                        Comment

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