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High pressure sodium yard light that when on-off syndrome

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    High pressure sodium yard light that when on-off syndrome

    Yeah high pressure sodium yard light has been having a on/off syndrome that has gotten worse and spending more and more time off than on

    These light fixtures have this item in them

    K1200E70 LITTELFUSE Thyristor Surge Protection Devices 90V 20A 2-Pin

    https://www.ebay.com/itm/10PCS-K1200...O/322603282024

    This part has become obsolete and very hard to find but I was able to find an eBay seller that had some which I bought some and now my yard light is back working again with out the on/off syndrome

    I have repaired them before for this problem but I was able to find some of them here until DigiKey runs out of them

    https://www.digikey.com/product-deta...urce=findchips
    Last edited by sam_sam_sam; 01-12-2020, 10:03 AM.
    9 PC LCD Monitor
    6 LCD Flat Screen TV
    30 Desk Top Switching Power Supply
    10 Battery Charger Switching Power Supply for Power Tool
    6 18v Lithium Battery Power Boards for Tool Battery Packs
    1 XBox 360 Switching Power Supply and M Board
    25 Servo Drives 220/460 3 Phase
    6 De-soldering Station Switching Power Supply 1 Power Supply
    1 Dell Mother Board
    15 Computer Power Supply
    1 HP Printer Supply & Control Board * lighting finished it *


    These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

    1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
    2 Hem Saw Computer Stack Board

    All of these had CAPs POOF
    All of the mosfet that are taken out by bad caps

    #2
    Re: High pressure sodium yard light that when on-off syndrome

    It seems to be a current littlefuse product, and Digikey stocks 1,489 of them, Mouser has 2,703. Order 100 of them. It is a SIDAC, likely used to trigger a triac/scr
    Last edited by R_J; 01-12-2020, 11:38 AM.

    Comment


      #3
      Re: High pressure sodium yard light that when on-off syndrome

      I have seen some web site that are showing them being obsolete so I am not sure if it will be come obsolete so I going to have on hand probably about 30 should last me a long time

      I see that DigiKey shows the part active so I guess I am alright for the time being

      Yes if you have one of these high pressure sodium yard light and it has a white plastic case that has three wires and circuit board you have changed the bulb and you still have the on/off syndrome then replace this part and that should stop it from having this problem

      I hope this helps some one
      Last edited by sam_sam_sam; 01-12-2020, 12:01 PM.
      9 PC LCD Monitor
      6 LCD Flat Screen TV
      30 Desk Top Switching Power Supply
      10 Battery Charger Switching Power Supply for Power Tool
      6 18v Lithium Battery Power Boards for Tool Battery Packs
      1 XBox 360 Switching Power Supply and M Board
      25 Servo Drives 220/460 3 Phase
      6 De-soldering Station Switching Power Supply 1 Power Supply
      1 Dell Mother Board
      15 Computer Power Supply
      1 HP Printer Supply & Control Board * lighting finished it *


      These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

      1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
      2 Hem Saw Computer Stack Board

      All of these had CAPs POOF
      All of the mosfet that are taken out by bad caps

      Comment

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