Component identification (Gentlemen please help...)

Discussion in 'General Electronics Chat' started by Kirat Patani, Jun 6, 2016.

  1. Kirat Patani

    Thread Starter New Member

    Feb 29, 2016
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    I have a 2 logic modules and one of them seems to have gone bad... I have found what looks to be a shorted transistor on the PCB... But for the life of me I cannot seem to figure out the right part number for this... It looks to be TO-92 package made by National Semi and the part# I'm searching for is FE41099... But I seem to be having no luck with this... Could someone point me in the right direction please... I have a attached a pic of the component to simplify things... Your help is much appreciated.
     
  2. MaxHeadRoom

    Expert

    Jul 18, 2013
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    There was a 2SC606 vhf tuner transistor in the past.
    Max.
     
  3. ISB123

    Well-Known Member

    May 21, 2014
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    Is it defective? Did you try measuring it with a multimeter?
     
  4. Kirat Patani

    Thread Starter New Member

    Feb 29, 2016
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    @MaxHeadRoom
    From a quick google search 2SC606 dose not seem to be right part... Thanks for trying :)

    @ISB123
    Yes it is defective... The original transistor is burned/bubbled...
     
  5. ISB123

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    May 21, 2014
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    From what equipment did the transistor come off?​
     
  6. Kirat Patani

    Thread Starter New Member

    Feb 29, 2016
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    @ISB123
    This is out of a Micro Switch Logic Module
     
  7. ISB123

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    May 21, 2014
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    Do you have schematics maybe?Or pictures of PCB where transistor used to be.
     
  8. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
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    I'm with Max on this.. 606 NPN transistor
     
  9. Kirat Patani

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    Feb 29, 2016
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    I do not have any schematics... Here is a pic not sure how much it will help..
     
  10. MaxHeadRoom

    Expert

    Jul 18, 2013
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    Usually the 41099 is the manuf marking or date code.
    Max.
     
  11. Kirat Patani

    Thread Starter New Member

    Feb 29, 2016
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    @mcgyvr
    correct me if I'm wrong... But from what google shows me is 2SC606 looks more like this...
     
  12. Kirat Patani

    Thread Starter New Member

    Feb 29, 2016
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    @MaxHeadRoom
    I also just searched for 2SA606 and came across these can type transistors...
     
  13. Kirat Patani

    Thread Starter New Member

    Feb 29, 2016
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    Just did a NTE search for 41099 and came across part# 4822-130-41099... NTE equivalent seems to be NTE108... maybe i should try my luck with this...??
     
  14. ISB123

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    May 21, 2014
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    Can you take more pictures of PCB so I can see the cap and resistor values.
     
  15. Kirat Patani

    Thread Starter New Member

    Feb 29, 2016
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  16. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
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    I think 41099 (4/10/99) is the data code..
    606 makes it an NPN transistor.. Probably anyone would be fine for this application..
    I didn't find the datasheet for the 2SC606 that max referenced but a description showed it to be a NPN transistor also.. Just the wrong package/case..

    I'd grab any NPN transistor I had laying around and just use that to start..
     
  17. ian field

    AAC Fanatic!

    Oct 27, 2012
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    How much more PCB is out of shot? - it may be simple enough to hand trace the schematic.
     
  18. ISB123

    Well-Known Member

    May 21, 2014
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    It's 2sc2603?
     
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