The TIP52 from MOSPEC SEMICONDUCTOR is a Bipolar Junction Transistor with Emitter Base Voltage 5 V, Emitter Cut off Current 1 mA, Collector Base Voltage 400 V, Collector Cut off Current 1 mA, Collector Emitter Voltage 300 V. Tags: Through Hole, NPN Transistor. More details for TIP52 can be seen below.