Sparkfun Electronics Inventor's Kit Manual page 55

If you are looking at the flat face with text on it, the center pin is your signal pin, the left-hand pin is
supply voltage (3.3V in this tutorial), and the right-hand pin connects to ground.
Pro Tip: The TMP36 looks a lot like a transistor. Put a dot of fingernail polish on the top of your
TMP36 so it's easy to find.
Hardware Hookup
Ready to start hooking everything up? Check out the wiring diagram below to see how everything is
connected.
Polarized Pay special attention to the component's markings indicating how to place it on
Components the breadboard. Polarized components can only be connected to a circuit in one
direction.
The temperature sensor can only be connected to a circuit in one direction. See
below for the pin outs of the temperature sensor ‐‐‐ TMP36.