Homebrew PCBs

That will work just fine, but unless you use a transistor with a metal 
case, your upper temperature will be limited to 150�C, or possibly 
lower. If you use a metal case transistor, remember that the collector 
is connected to the case, and this may cause a grounding problem. 
Temperature limit with the metal can is 200�C or lower. Look at the 
datasheet for the maximum storage temperature, and use the lowest 
current through the transistor you can.


On 1/1/2017 12:11 PM, Kevin Byrne kbyrne10@... [Homebrew_PCBs] wrote:
> A transistor with two of three legs soldered together makes a 
> temperature probe. Is
> the temperature inside of lam too hot? Google for temperature probe 
> circuits like I
> do for other projects.
>