The TTA502 from Toshiba is a Bipolar Junction Transistor with Emitter Base Voltage -7 V, Base Emitter Saturation Voltage -1.1 V, Emitter Cut off Current -100 nA, Collector Base Voltage -30 V, Collector Cut off Current -100 nA. Tags: Surface Mount, PNP Transistor. More details for TTA502 can be seen below.