The MBT489L from AiT Semiconductor is a Bipolar Junction Transistor with Emitter Base Voltage 6 V, Base Emitter Saturation Voltage 1.2 V, Emitter Cut off Current 100 nA, Collector Base Voltage 40 V, Collector Cut off Current 100 nA. Tags: Surface Mount, NPN Transistor. More details for MBT489L can be seen below.