The 2N2405 from New Jersey Semiconductor is a Bipolar Junction Transistor with Emitter Base Voltage 7 V, Base Emitter Saturation Voltage 0.9 to 1.1 V, Emitter Cut off Current 0.01 µA, Collector Base Voltage 120 V, Collector Cut off Current 10 µA. Tags: Through Hole, NPN Transistor. More details for 2N2405 can be seen below.