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.

 

There was a 2SC606 vhf tuner transistor in the past.
Max.

 

Is it defective? Did you try measuring it with a multimeter?

 

@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...

 

From what equipment did the transistor come off?​

 

@ISB123
This is out of a Micro Switch Logic Module

 

Do you have schematics maybe?Or pictures of PCB where transistor used to be.

 

I'm with Max on this.. 606 NPN transistor

 

I do not have any schematics... Here is a pic not sure how much it will help..

 

# I'm searching for is FE41099...

Usually the 41099 is the manuf marking or date code.
Max.

 

@mcgyvr
correct me if I'm wrong... But from what google shows me is 2SC606 looks more like this...

 

@MaxHeadRoom
I also just searched for 2SA606 and came across these can type transistors...

 

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...??

 

Can you take more pictures of PCB so I can see the cap and resistor values.

 

@ISB123

 

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..

 

@ISB123

How much more PCB is out of shot? - it may be simple enough to hand trace the schematic.

 

It's 2sc2603?