The 2SC3039 from Mospec Semiconductor is a Bipolar Junction Transistor with Emitter Base Voltage 7 V, Base Emitter Saturation Voltage 1.5 V, Emitter Cut off Current 10 µA, Collector Base Voltage 500 V, Collector Cut off Current 10 µA. Tags: Through Hole, NPN Transistor. More details for 2SC3039 can be seen below.