The 2SC4738 from Galaxy Century Microelectronics is a Bipolar Junction Transistor with Emitter Base Voltage 5 V, Emitter Cut off Current 0.1 µA, Collector Base Voltage 60 V, Collector Cut off Current 0.1 µA, Collector Emitter Breakdown Voltage 50 V. Tags: Surface Mount, NPN Transistor. More details for 2SC4738 can be seen below.