Finding datasheets for hard to find parts

Discussion in 'General Electronics Chat' started by Lectraplayer, Jul 11, 2015.

  1. Lectraplayer

    Thread Starter Member

    Jan 2, 2015
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    I may be missing something, but shown is a salvage part that is beating Professor Google...

    CAM00037.jpg

    What the heck is this device? Where do I find a datasheet on this?

    Also, is there a tool to help visually ID parts that is similar to Goggles?
     
  2. Aleph(0)

    Member

    Mar 14, 2015
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    That is rohm product in family series like periphiral driver
     
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  3. ISB123

    Well-Known Member

    May 21, 2014
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  4. JohnInTX

    Moderator

    Jun 26, 2012
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    Or an LED driver.. It looks like ROHM alright but either customer-specific, custom or something else. It looks like Rohm assigned PNs in sequence without regard to what the actual part was..
    If its just a salvage part, toss it.
     
  5. MaxHeadRoom

    Expert

    Jul 18, 2013
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  6. Lectraplayer

    Thread Starter Member

    Jan 2, 2015
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    The multi-resistors I have seen have had more of a plastic dipped look. A TV amp IC I had at one time looked like this, but with a metal fin. I still think it's some type of IC. It come out of a failed battery charger, so I'm thinking it was implemented as a charge controller.

    Still, a datasheet would be indespensible.

    I do remember seeing 5-LED indicators shotgunned all around this part number.

    Would Milwaukee Tool have used an LED controller as a charge controller for a screwdriver battery?
     
    Last edited: Jul 11, 2015
  7. Lestraveled

    Well-Known Member

    May 19, 2014
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    I agree with Max, it looks like a resistor array. Have you taken an ohm meter to it?
     
  8. Lectraplayer

    Thread Starter Member

    Jan 2, 2015
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    I have not yet, but soon will.

    Back to my original question: this isn't the only questionable component I have. I also have a couple transistor-like devices I would like to identify. With a part number like this, how would I narrow down what I have besides just discovering the datasheet drawing isn't what I'm holding?
     
  9. Lestraveled

    Well-Known Member

    May 19, 2014
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    Obsolescence and technology move at the same speed, and lately that means fast. All of us have your problem. We all have parts boxes of great parts that are obsolete. Good luck.
     
  10. Lectraplayer

    Thread Starter Member

    Jan 2, 2015
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    I would figure it would be no trouble to maintain the datasheet, even if the part is discontinued. It would help techs out to be able to identify the part below as well.

    CAM00038.jpg
     
  11. GopherT

    AAC Fanatic!

    Nov 23, 2012
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  12. AnalogKid

    Distinguished Member

    Aug 1, 2013
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    It's not a resistor array. The 6104 is a 5-segment LED level meter driver with a linear scale, the 6109 is a bidirectional DC motor driver. Clearly the 61xx line is intended for various consumer electronics products. The part in the post #1 photo was removed from something. What?

    The 6105 could complement the 6104 with a log or VU scale, like National's 3914 and 3915, or have a proprietary scale.

    ak
     
  13. debe

    Well-Known Member

    Sep 21, 2010
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    Your 13007 is a FJPF13007, 400v 8amp NPN transistor. Very common in mains SMPS. It would be a lot more helpful to post good clear pictures of both sides of the circuit board.
     
  14. KeepItSimpleStupid

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    Mar 4, 2014
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  15. debe

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    Sep 21, 2010
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    Found what you are looking for, its a 5 LED level IC. BA6105.1.png BA6105.2.png
     
  16. bertus

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  17. debe

    Well-Known Member

    Sep 21, 2010
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    This is the same looking chip as a motor controller from a VCR loading motor. LOAD MOTOR IC.1.JPG LOAD MOTOR IC.2.JPG
     
  18. AnalogKid

    Distinguished Member

    Aug 1, 2013
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    "Same looking" and "same" aren't the same. If the part on the motor board is a 6104, then ok. But I suspect that it is a 6109.

    ak
     
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