2SC2229 is a BJT NPN transistor available in TO-92L or TO-92MOD package but with some manufacturers, it is also available in the TO-92 package. It's an NPN triple diffused transistor; they are transistors that are manufactured by diffusing dopants. The transistor has several desirable characteristics, including the ability to operate at high voltage s of up to 150V, a low output capacitance, and a transition frequency of up to 120MHz.
The transistor's collector current maximum is 50mA. To drive a 50mA load, the maximum voltage required for transistor saturation at its base is merely 0.5V with only 5mA of base current. The output capacitance at the collector is 3.5pF to 5pF, with an 800 mill watt collector dissipation maximum.