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    #1

    Help finding replacement resistor

    Need help finding a replacement resistor for fluke mutimeter 76 series.
    Top one in pic has burnt open. Bottom resistor value is 750 ohm.
    Here is the fluke description of the 2 resistors, both the same value.

    RES,CERM,750,+-2%,2W,100PPM,MELF

    Resistor length is approx. .370"(9.398mm)
    Resistor diameter is approx. .110"(2.794mm)

    Have have been searching but can't find anything close with measured length/diameter/rating. May have to call fluke tomorrow for part.
    Any help would be appreciated. Thanks
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    #2
    Re: Help finding replacement resistor

    It's .335"L x .126"D and +/-1%, but this might work.
    PeteS in CA

    Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
    ****************************
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      #3
      Re: Help finding replacement resistor

      Thanks PeteS for reply. I clicked on link & out of stock. Can't find in stock online. Not having much luck either trying to do a cross reference.

      Comment

        #4
        Re: Help finding replacement resistor

        the important information in there (for further googling) is that the package size is 0309 & the resistor type is MELF (metal film) with a power rating of 2 watts, you could probably go tighter on the tolerance but I wouldn't go looser in a meter as you may well lose accuracy.

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          #5
          Re: Help finding replacement resistor

          Google is not being very friendly finding a replacement. Seems to be very few 750 ohm resistors, at least 2 watt, & 2% or less tolerance in the size/style I need.

          Comment

            #6
            Re: Help finding replacement resistor

            Depending on available room, you might consider getting a 2W metal film through-hole part and forming its leads.

            RCD has a part worth looking for.
            PeteS in CA

            Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
            ****************************
            To kill personal responsibility, initiative or success, punish it by taxing it. To encourage irresponsibility, improvidence, dependence and failure, reward it by subsidizing it.
            ****************************

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              #7
              Re: Help finding replacement resistor

              May work:
              http://www.digikey.com/product-detai...ECT-ND/3029241
              Never stop learning
              Basic LCD TV and Monitor troubleshooting guides.
              http://www.badcaps.net/forum/showthr...956#post305956

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              http://www.badcaps.net/forum/showthr...999#post300999

              Inverter testing using old CFL:
              http://www.badcaps.net/forum/showthr...er+testing+cfl

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                #8
                Re: Help finding replacement resistor

                Originally posted by budm View Post
                May work:
                http://www.digikey.com/product-detai...ECT-ND/3029241
                Thanks for the link. Resistor at link looks to be too narrow of length & too wide to sit on pads where old resistor is soldered onto.

                Called Fluke parts dept. today & resistor is no longer available from them. Search continues.

                Comment

                  #9
                  Re: Help finding replacement resistor

                  This looks like the best/closest match that I have found.
                  My inside pad is approx .210" apart at ends of resistor.
                  My pad length is approx. .180" long/.200" wide.
                  This resistor will only sit on/overlap pad approx. .025 on each pad. Think this will be a problem?
                  Working voltage is 200V. Not sure what original resistor is.
                  Anyone see any problem using this resistor? They are not cheap, $6.73 each.
                  They are 2.5 watt, haven't found them in 2 watt. These are low profile height.
                  My resistor pads for the 2 resistors are approx. .055" apart, Resistors mounted on pads now are .155" apart.
                  Hope my description isn't too complicated.
                  Here's a link to resistor:

                  http://www.digikey.com/product-detai...BCT-ND/2508191

                  Here's a link to better specs.

                  https://www.mouser.com/ds/2/427/php-73510.pdf

                  Comment

                    #10
                    Re: Help finding replacement resistor

                    Thanks to all who gave me suggestions for replacement resistor. I bought the resistor in link on my post above & meter works now. These are very compact 2.5 watt resistors. Resistance measured right on spec.

                    Comment

                      #11
                      Re: Help finding replacement resistor

                      Originally posted by Hoosier View Post
                      Resistance measured right on spec.
                      Thanks for reporting back and good job on the repair. I hate threads that just suddenly end without any resolution.
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