The 2N2777 from New Jersey Semiconductor is a Bipolar Junction Transistor with Emitter Base Voltage 15 V, Base Emitter Saturation Voltage 1.35 to 2.5 V, Emitter Cut off Current 25 mA, Collector Base Voltage 150 V, Collector Cut off Current 30 mA. Tags: Screw Mount, NPN Transistor. More details for 2N2777 can be seen below.