The 2SC5212E from Isahaya Electronics is a Bipolar Junction Transistor with Emitter Base Voltage 4 V, Emitter Cut off Current 1 µA, Collector Base Voltage 25 V, Collector Cut off Current 1 µA, Collector Emitter Breakdown Voltage 20 V. Tags: Surface Mount, NPN Transistor. More details for 2SC5212E can be seen below.