The MMBT3906N from FrelTec is a Bipolar Junction Transistor with Emitter Base Voltage -5 V, Base Emitter Saturation Voltage -0.95 to 0.65 V, Emitter Cut off Current -100 nA, Collector Base Voltage -40 V, Collector Cut off Current -50 nA. Tags: Surface Mount, PNP Transistor. More details for MMBT3906N can be seen below.