The 2N3440 from Comset Semiconductors is a Bipolar Junction Transistor with Emitter Base Voltage 7 V, Base Emitter Saturation Voltage 1.3 V, Emitter Cut off Current 20 µA, Collector Base Voltage 450 V, Collector Cut off Current 500 µA. Tags: Through Hole, NPN Transistor. More details for 2N3440 can be seen below.