I have a transistor I know practically nothing about. It was included with an Arduino I got off the internet.
It has the words 36RA, LM35, and DZ on the flat side of the plastic. I have a digital multimeter with a function for measuring hFE, but I don't have access to the data sheet that would supposedly tell me what reading I should get because I don't know the model code or manufacturer. The symbol/function for testing diodes is on the 2K\$\Omega\$ function.
I have this data from experimenting:
(With flat side of plastic facing me)
Resistance between central pin (black probe) and left pin (red): 1.307k\$\Omega\$
Resistance between central pin (black) and right (red): 0.873k\$\Omega\$
hFE value for NPN with transistor on CBE: 25
hFE value for NPN on EBC (backwards): 295
hFE for PNP on CBE: 289
hFE for PNP on EBC : 24-25
hFE for PNP on ECB: fluctuates between 0 and 22
hFE for PNP on BCE: 135
In all measurements not stated the value was infinity or there was no response.
I'm a beginner at electronics (in case it wasn't evident).
Best Answer
Are you sure this is not the LM35 temperature sensor? A TO-92 doesn't automatically mean transistor. Here is a datasheet.
Hook up 5V to Vs pin and GND to GND. Measure voltage on Vout pin and see if it changes when you breathe on the sensor.