ON Semiconductor, BC856BLT1G, Transistors, Bipolar (BJT) Transistors

 BC Series 65 V 100 mA SMT PNP Silicon General Purpose Transistor - SOT-23

https://www.futureelectronics.com/p/semiconductors--discretes--transistors--bipolar-transistors/bc856blt1g-on-semiconductor-4506622