The 2SC5398S from Isahaya Electronics is a Bipolar Junction Transistor with Emitter Base Voltage 6 V, Emitter Cut off Current 0.5 µA, Collector Base Voltage 50 V, Collector Cut off Current 0.5 µA, Collector Emitter Breakdown Voltage 50 V. Tags: Through Hole, NPN Transistor. More details for 2SC5398S can be seen below.