The TPCP8511 from Toshiba is a Bipolar Junction Transistor with Emitter Base Voltage 6 V, Base Emitter Saturation Voltage 1.1 V, Emitter Cut off Current 100 nA, Collector Base Voltage 100 V, Collector Cut off Current 100 nA. Tags: Surface Mount, NPN Transistor. More details for TPCP8511 can be seen below.