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D1047, B817 and B1047 transistors data sheets???

Discussion in 'Datasheets, Manuals or Parts' started by mirko, Dec 25, 2003.

  1. mirko

    mirko New Member

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    Hi, I bought a car amplifier needing repairs. I have to change some transistors and I want to know if someone here have the datasheets or other things can help me. The part number is

    -D1047
    -B817
    -B1047

    This number is printed on the parts I need to change. Excuse my bad english, I usually talk in french. Thanks.
     
  2. Russlk

    Russlk New Member

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    Those numbers appear to be propriatory to the manufacturer, you won't find data sheets for them. How do you know you need to change them? If you have a schematic, it will have some useful information, and the size and shape of the part will have a clue as to their application.
     
  3. mozikluv

    mozikluv New Member

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  4. dave

    Dave New Member

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  5. mirko

    mirko New Member

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    Its an Orion EXT1400 amplifier. I dont have the schematics, but I can send a photo of the board tomorrow, It is good??? Its not the TO-220 standard package, its bigger.
     
  6. Nigel Goodwin

    Nigel Goodwin Super Moderator Most Helpful Member

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    Japanese transistors only have part of their number printed on them, you need to add '2S' in front.

    A 2SB817 is PNP, TOP3, 12A, 160V, 100W
    A 2SD1047 is NPN, TOP3, 12A, 160V, 100W

    The 2SB1047 isn't listed in my old Tower's book.
     
  7. Chippie

    Chippie New Member

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  8. mirko

    mirko New Member

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    Thanks you very much to all of you!!! Do you know if its possible to buy some of these devices??? Thanks again.
     
  9. Chippie

    Chippie New Member

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  10. mirko

    mirko New Member

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    I live in canada, excuse me...
     
  11. Nigel Goodwin

    Nigel Goodwin Super Moderator Most Helpful Member

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    I notice that a lot of users don't fill their location in, it's always very helpful to know where people are - I notice that Chippie doesn't have his listed either :lol:
     
  12. Chippie

    Chippie New Member

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    Mirko,

    Best place I found for you in Canada is here:
    http://www.ohmega.nb.ca/NTEsemi.htm

    NTE36/NTE37 devices will replace the 2SD1047/2SB817 devices.....

    They dont specify a direct replacement for the 2SB1047......perhaps a near equivalent may suffice.......

    Its basic specs are:

    Manufacturer Hitachi
    Vcbo -180
    Vebo -5
    Ic 50mA

    Pd.......dunno

    its NPN equivalent is 2SD1465
    Sorry I cant be more helpful...mon ami 8)
     
  13. Chippie

    Chippie New Member

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    [quote="Nigel GoodwinI notice that Chippie doesn't have his listed either :lol:[/quote]


    err thought my website might have given it away....... :lol


    UK any way.... 8)
     
  14. mirko

    mirko New Member

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    thank you very much my friend!
     
  15. mirko

    mirko New Member

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    Do you think the NTE32 will do the job???? Let me know please.
     
  16. Chippie

    Chippie New Member

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    Looking at the specs it seems as though it ought to do the job......


    Before you replace the semi's I'd check thoroughly through the rest of the circuitry and try and determine why these devices have failed....otherwise your new parts may go the same way.... :(
     
  17. mirko

    mirko New Member

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    I bought an used amplifier and I will repair it. Usually, the people broke the amp when they plug it. A bad wiring configuration when bridging the amplifier cause the faillure of one of the transistor and after the rest fail with the surcharge of current. Its usually the negative side of the amplifier(WHEN IS BRIDGED) that fail, I dont know why... I think that the amp will play well with the NTE32. I will put off all the transistors and check it individually. Thank you very much for your time. I will let you know if that works...
     
  18. Chippie

    Chippie New Member

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    Mirko,
    I would be tempted to try each half of the amplifier........then try bridging....Bon chance! 8)
     

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