SMD identification SOT23 "t" "7" symbol
I was looking after the sign, but I could not find this item. But to my eye, it will be NPN or N-MOSFET transistor.
The bottom right foot looks like it was connected to GND. The lower left leg as if it received a control signal (narrow path). In contrast, the upper leg as if it had a connected load (wider path).
It looks like the NPN or N-MOSFET transistor as a key function.

NPN Transistor

N-MOSFET Transistor