The 2SD1898D from Galaxy Century Microelectronics is a Bipolar Junction Transistor with Emitter Base Voltage 5 V, Emitter Cut off Current 1 µA, Collector Base Voltage 120 V, Collector Cut off Current 1 µA, Collector Emitter Breakdown Voltage 80 V. Tags: Surface Mount, NPN Transistor. More details for 2SD1898D can be seen below.