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Google wont help! 4 pin IC cannot find datasheet.

Discussion in 'Datasheets, Manuals and Component Identification' started by kingoftaurus, Jan 17, 2012.

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  1. kingoftaurus


    Jan 17, 2012
    Hello, I have taken apart an old television and have found this 4 pin, integrated circuit on it, and no matter what kind of search on the internet I do, I just cannot find what it is.

    so im going to try to show you what it looks like so maybe you can help.

    PIN PF5001 PIN
    PIN K C . PIN

    Flip the chip over and there is a stamped K

    the K on the front of the chip is pretty fancy, eveything else is typed very clearly. and the " . " on the front is a white dot.

    I think i attached a pic of it.. dunno how that will work out

    Attached Files:

  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    Jan 21, 2010
    I'd say it's either a bridge rectifier or an optocoupler.

    If you use a multimeter on a diode test range, you will find diodes across each of the 4 pins if it's a bridge rectifier, and across only 1 if its an optocoupler.
  3. kingoftaurus


    Jan 17, 2012
    Only across the side with the dot on it, red terminal on dot, black on the one just above it.

    So, optocoupler it is. So theres a little led inside. How interesting. is where i read up on it. Seems useful.

    Wish i had a datasheet still, so i dont overload the poor thing. lol.

    Now that i know what it is, i found out exactly what it is...
    Last edited: Jan 18, 2012
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