The KTC1027-Y from SeCoS Corporation is a Bipolar Junction Transistor with Emitter Base Voltage 5 V, Emitter Cut off Current 0.1 µA, Collector Base Voltage 120 V, Collector Cut off Current 0.1 µA, Collector Emitter Breakdown Voltage 120 V. Tags: Through Hole, NPN Transistor. More details for KTC1027-Y can be seen below.