The 2SC5171 from Lision Technology is a Bipolar Junction Transistor with Emitter Base Voltage 5 V, Collector Base Voltage 180 V, Collector Emitter Breakdown Voltage 180 V, Collector Emitter Voltage 180 V, Continuous Collector Current 2000 mA. Tags: Through Hole, NPN Transistor. More details for 2SC5171 can be seen below.