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Anyone know of an alternative for a R10E2662-2 DPDT relay

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    #1

    Anyone know of an alternative for a R10E2662-2 DPDT relay

    I'm having trouble finding an R10 E2662-2 telephone relay, originally made by Potter & Brumfield, and have also been unable to find a suitable replacement.

    It is missing from a Fluke 8600A bench multimeter

    It isn't really mentioned in the manual, yet judging by others in the series, it appears to have a 4.5v coil, but I could be wrong...

    I can find the later R10 E1Y2 relay, however it has a 12v coil

    Enclosing pictures of the socket and relay pin assembly

    Here is the service manual;

    https://cdn.badcaps-static.com/pdfs/...c6588cac76.pdf
    Attached Files
    Last edited by Crystaleyes; 06-30-2022, 09:19 AM.
    Tags: None
    #2
    Re: Anyone know of an alternative for a R10E2662-2 DPDT relay

    I can confirm it is most likely a 4.5v relay because it sits on the +5v line and is controlled by a transistor so that will have a 0.7v drop...

    Attached Files
    "The one who says it cannot be done should never interrupt the one who is doing it."

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      #3
      Re: Anyone know of an alternative for a R10E2662-2 DPDT relay

      Maybe this? R10-E2Y2-V52 (Digikey) 6v coil (operates at 4.5v) It has PCB terminals but might work?
      Last edited by R_J; 06-30-2022, 10:59 AM.

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        #4
        Re: Anyone know of an alternative for a R10E2662-2 DPDT relay

        Looking at a photo here shows a coil resistance of 145Ω
        From that same series of relays you've shown we can see there exists a version with a coil resistance of 140Ω so pretty much a perfect match:
        R10-E1W2-S140 it is a 5v relay but it operates down to 3.75v
        Just need to make sure it has the proper number of contacts and the configuration they are in and that it fits the socket:
        https://eu.mouser.com/ProductDetail/...J6JE0CHQ%3D%3D
        "The one who says it cannot be done should never interrupt the one who is doing it."

        Comment

          #5
          Re: Anyone know of an alternative for a R10E2662-2 DPDT relay

          Even if the pins are not exactly the same if you have room in the enclosure you might be able to mount it some where near the board

          Comment

            #6
            Re: Anyone know of an alternative for a R10E2662-2 DPDT relay

            As long as the coil voltage and relay configuration is the same, you can wire the new relay in and glue it in its new place. I even done this with unobtainable rf relays. Works fine as kind.

            Comment

              #7
              Re: Anyone know of an alternative for a R10E2662-2 DPDT relay

              Fantastic info gents. Just what the doctor ordered.

              With so many different relay options, searching for an obsolete equivalent isn't so easy..

              Many thanks!

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