The MPS6523 from Central Semiconductor is a Bipolar Junction Transistor with Emitter Base Voltage 4 V, Collector Base Voltage 25 V, Collector Cut off Current 0.05 to 1 µA, Collector Emitter Breakdown Voltage 25 V, Collector Emitter Voltage 25 V. Tags: Through Hole, PNP Transistor. More details for MPS6523 can be seen below.