OK, sense I revived this thread, let me see if I have any understanding.
In the very first post the OP thermally connected a 100 ohm resistor and a
a C-B junction of a SMD NPN transistor.
Then he says, "forward biased where you get about -2mV/C coefficient"
I would ask, How much current needs to flow in the C-B junction to measure the -2mV/C?
And, it would seem it needs to be very low to prevent internal heating.
So how is that -2mV/C being measured?
I'm thinking I can't just set my DVM to diode test, apply 1Vdc, take a reading,
and the then switch to 1Vac and they would read the same.
I think they should, except for the DVM supplied current.
Help me out guys.
Mikek
btw, might it be better to use a 50 ohm resistor to properly load a sig-gen.
Maybe sandwich the C-B junction between two 100ohms resistors in parallel.