The D44C9 from Mospec Semiconductor is a Bipolar Junction Transistor with Emitter Base Voltage 5 V, Base Emitter Saturation Voltage 1.3 V, Emitter Cut off Current 100 µA, Collector Base Voltage 70 V, Collector Cut off Current 10 µA. Tags: Through Hole, NPN Transistor. More details for D44C9 can be seen below.