The SFT4033/39 from Solid State Devices is a Bipolar Junction Transistor with Emitter Base Voltage 5 V, Base Emitter Saturation Voltage 0.82 to 1.2 V, Emitter Cut off Current 10 µA, Collector Base Voltage 80 V, Collector Cut off Current 50 µA. Tags: Through Hole, PNP Transistor. More details for SFT4033/39 can be seen below.