The SFT501JR from Solid State Devices is a Bipolar Junction Transistor with Emitter Base Voltage 7 V, Base Emitter Saturation Voltage 1 to 1.5 V, Emitter Cut off Current 500 nA, Collector Base Voltage 200 V, Collector Cut off Current 1 µA. Tags: Through Hole, PNP Transistor. More details for SFT501JR can be seen below.