The CEN-U55 from Central Semiconductor is a Bipolar Junction Transistor with Emitter Base Voltage 4 V, Emitter Cut off Current 100 µA, Collector Base Voltage 60 V, Collector Cut off Current 0.1 µA, Collector Emitter Breakdown Voltage 60 V. Tags: Through Hole, PNP Transistor. More details for CEN-U55 can be seen below.