The 2SD2390 from Sanken Electric is a Bipolar Junction Transistor with Emitter Base Voltage 5 V, Base Emitter Saturation Voltage 3 V, Emitter Cut off Current 100 µA, Collector Base Voltage 160 V, Collector Cut off Current 100 µA. Tags: Through Hole, NPN Transistor. More details for 2SD2390 can be seen below.