Lincoln MIG welder component identification

Thread Starter

bushav

Joined Aug 22, 2022
3
Component.png

Hello from a new member! Thanks for allowing me to join. I am a hobbiest whose hobbies often involve electronics. In the last two years I have built a virtual pinball cabinet and a multicade that replicates a Galaga machine.

I am stuck trying to identify the above component. My Lincoln MIG 135 welder had the wire feed quit last week. I discovered a few fried components on the 24 volt board. I have ordered a voltage regulator transistor and two ceramic resistors in the circuit. The last component that fried is pictured above. I thing it most likely is a thermal fuse but I just don't know and Lincoln's schematic shows the board as an assembly and doesn't break down the components. In addition to the "105K" there is a "+35" with possibly some more digits on the other side. Can anyone help me identify this component? I hate to throw away a good welder just because the variable voltage for the wire motor is toast. Thanks.
Lane
 

Reloadron

Joined Jan 15, 2015
7,517
Less a schematic my best guess is a carbon resistor. The 105K leads me to believe that. Then too with the other markings it's hard to tell.

Ron
 

Irving

Joined Jan 30, 2016
3,885
Hard to say, could be a thermal fuse but equally could be a 100nf poly capacitor with high voltage rating. Without tracing out the circuit or finding a schematic its going to be a bit of a guess..
 
This is a Lincoln Pro-Mig 135? Your picture is basically fuzz lol.
The part is an axial tantalum capacitor 1uF 35V (105K 35) The part has polarity (fillet + stripe), do not put the new one in backwards. Kemet makes them i.e. T322B105K035AT and available at Digi-Key, Mouser etc.
These caps typically fail short-circuit and burn up.
 

Papabravo

Joined Feb 24, 2006
21,225
This is a Lincoln Pro-Mig 135? Your picture is basically fuzz lol.
The part is an axial tantalum capacitor 1uF 35V (105K 35) The part has polarity (fillet + stripe), do not put the new one in backwards. Kemet makes them i.e. T322B105K035AT and available at Digi-Key, Mouser etc.
These caps typically fail short-circuit and burn up.
I second the identification of a capacitor. AFAIK no resistor has ever been marked 105. The K is a tolerance, ±10%.
 

t_glover

Joined Mar 16, 2021
49
There should be a part number on the printed circuit side of the board.
I was on Lincolns website looking for info on a board for a mig welder
and found troubleshooting info a schematic for the board. I never
saved the link and the PC's has purged it from my browsing history.
Here is a link to the replacement board I found for mine:

https://www.lincolnwelderrepairparts.com/search?q=880-154-000

You may be able to look up the board for your on this site and identify
component you need in the picture.
 
Last edited:

Thread Starter

bushav

Joined Aug 22, 2022
3
This is a Lincoln Pro-Mig 135? Your picture is basically fuzz lol.
The part is an axial tantalum capacitor 1uF 35V (105K 35) The part has polarity (fillet + stripe), do not put the new one in backwards. Kemet makes them i.e. T322B105K035AT and available at Digi-Key, Mouser etc.
These caps typically fail short-circuit and burn up.

Thank you! I believe you are quite right. I googled part number and a few of the images match my component exactly. I'll place the order right now
 
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