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Triac in Fridge Thermostat

Discussion in 'Troubleshooting and Repair' started by yeshu26, May 6, 2013.

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  1. yeshu26


    May 6, 2013

    I hope you can help me out. I am from the UK.

    I have an automatic Fridge and Freezer, whose Main PCB has failed. Fridge works fine, but freezer does not.

    By the looks of it, it looks like a blown TRIAC. A Google search for the number did not return any valuable results. Can you please recommend a suitable equivalent or the details of this TRIAC please?

    The details of the neighbouring TRIAC are given below:

    ST Electronics

    Z7S Y515.


    Himanshu IMG_0352.jpg
  2. shrtrnd


    Jan 15, 2010
    Contact ST Electronics on their website. They'll have information on the component and
    probably the distributor in your area to buy it from.
  3. yeshu26


    May 6, 2013
    Triac Found

    The Triac is called Z0107SN

    , I only got the versions Z0107NN, and Z0107MN in the Ebay UK. So I ordered an each of them. I think the only difference in the Vdrm.

    I have never used Triac before, but have played quit a lot with bipolar transistors. For eg if the actual Vce of a transistor is Vce= 300 V then the replacement shall be 300 V or above.

    So is Vdrm a big factor in the cases of Triac?

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