The 2SC4115-Q from SeCoS Corporation is a Bipolar Junction Transistor with Emitter Base Voltage 6 V, Emitter Cut off Current 0.1 µA, Collector Base Voltage 40 V, Collector Cut off Current 0.1 µA, Collector Emitter Breakdown Voltage 20 V. Tags: Surface Mount, NPN Transistor. More details for 2SC4115-Q can be seen below.