Electrical power, insulated gate bipolar transistor, Bipolar transistor circuits

 PMBTA45 Series 500 V 0.15 A 300 mW NPN SMT Small Signal Transistor - SOT-23

https://www.futureelectronics.com/p/semiconductors--discretes--transistors--bipolar-transistors/pmbta45-215-nexperia-9009695