The 2N3906S from KEC Semiconductor is a Bipolar Junction Transistor with Emitter Base Voltage -5 V, Base Emitter Saturation Voltage -0.95 to -0.65 V, Collector Base Voltage -40 V, Collector Cut off Current -50 nA, Collector Emitter Breakdown Voltage -40 V. Tags: Surface Mount, PNP Transistor. More details for 2N3906S can be seen below.