Transistors, Bipolar (BJT) Transistors, SMMBTA06LT1G, onsemi

 MMBTA06L Series 80 V 500 mA Surface Mount NPN Silicon Transistor

https://www.futureelectronics.com/p/semiconductors--discretes--transistors--bipolar-transistors/smmbta06lt1g-onsemi-3124593