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Need Help Finding a El 817 B926 Photocoupler On Digikey

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    #1

    Need Help Finding a El 817 B926 Photocoupler On Digikey

    I am trying to find a component called a photocoupler on digikey,but I am not having any luck.I have tried all the combinations of the letters,and numbers written on it,but I can't seem to find one.It says EL 817 B926.Any help is greatly appreciated.Thank You very much!

    Tyler
    Tags: None
    #2
    Re: Need Help Finding a El 817 B926 Photocoupler On Digikey

    Photocouplers are the same as Opto-isolators aren't they? If so, You might find them under that. If you can find a data sheet for the part that you have, then look up an equivalent part.
    The strong-minded rise to the challenge of their goals,the weak-minded BECOME HATERS

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      #3
      Re: Need Help Finding a El 817 B926 Photocoupler On Digikey



      Mouser has them:

      http://www.mouser.com/Search/Refine.aspx?Keyword=el817
      veritas odium parit

      Comment

        #4
        Re: Need Help Finding a El 817 B926 Photocoupler On Digikey

        findchips.com will search about 20 or so vendors for you.

        http://www.findchips.com/avail?part=EL817
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          #5
          Re: Need Help Finding a El 817 B926 Photocoupler On Digikey

          Yup, but Mouser's the cheapest -

          - Future is cheaper by the piece, but $9 FedEx Ground. No Priority Mail.
          - Arrow is cheaper yet, but minimum order is $25 and S/H is $8.

          All the Intersil numbers are the WRONG device (op-amp).

          Cheers!
          Toast
          veritas odium parit

          Comment

            #6
            Re: Need Help Finding a El 817 B926 Photocoupler On Digikey

            It appears the following part numbers from Digi-key are matches for the original. If the row to row lead spacing is .3" this should work or if the row to row lead spacing is .4" use this one.

            PlainBill
            For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

            Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

            Comment

              #7
              Re: Need Help Finding a El 817 B926 Photocoupler On Digikey

              EBAY is the place to go first, 817 is the key in the search.
              ebay has 10 photo coupler's $5.00 free shipping

              Comment

                #8
                Re: Need Help Finding a El 817 B926 Photocoupler On Digikey

                Wow, ten!!! Just what we all need.
                The strong-minded rise to the challenge of their goals,the weak-minded BECOME HATERS

                Comment

                  #9
                  Re: Need Help Finding a El 817 B926 Photocoupler On Digikey

                  Originally posted by Dgtech View Post
                  Wow, ten!!! Just what we all need.
                  And coming all the way from China!

                  PlainBill
                  For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

                  Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

                  Comment

                    #10
                    Re: Need Help Finding a El 817 B926 Photocoupler On Digikey

                    My question is this: are you repairing a power supply, and isolated the fault to the opto-coupler? If so, how did you determine that this part was faulty?

                    Here is some information that might be helpful. SMPS use opto-couplers in the negative feedback loop in order to maintain isolation between primary and secondary. The good news is that they are all very similar. Being in the feedback loop, the part will "self-adjust" and thus the specs are not critical. Desolder one from a spare parts board if you have doubts.

                    One side of the coupler is an LED. That can easily be tested with your multimeter. The other side is an opto-transistor. The part operates at low voltage, low current, and low frequency. The failure rate is very low.
                    Is it plugged in?

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