The 2N3308 from New Jersey Semiconductor is a Bipolar Junction Transistor with Emitter Base Voltage 3 V, Base Emitter Saturation Voltage 1 V, Collector Base Voltage 30 V, Collector Cut off Current 0.01 to 3 µA, Collector Emitter Breakdown Voltage 30 V. Tags: Through Hole, NPN Transistor. More details for 2N3308 can be seen below.