The 2SC2688-L from SeCoS Corporation is a Bipolar Junction Transistor with Emitter Base Voltage 5 V, Emitter Cut off Current 0.1 µA, Collector Base Voltage 300 V, Collector Cut off Current 0.1 µA, Collector Emitter Breakdown Voltage 300 V. Tags: Through Hole, NPN Transistor. More details for 2SC2688-L can be seen below.