The KTC3199 from Lision Technology is a Bipolar Junction Transistor with Emitter Base Voltage 5 V, Collector Base Voltage 50 V, Collector Emitter Breakdown Voltage 50 V, Collector Emitter Voltage 50 V, Continuous Collector Current 150 mA. Tags: Through Hole, NPN Transistor. More details for KTC3199 can be seen below.