The TTC015B from Toshiba is a Bipolar Junction Transistor with Emitter Base Voltage 7 V, Base Emitter Saturation Voltage 1.5 V, Emitter Cut off Current 100 nA, Collector Base Voltage 160 V, Collector Cut off Current 100 nA. Tags: Through Hole, NPN Transistor. More details for TTC015B can be seen below.