The BCP56MTWG from onsemi is a Bipolar Junction Transistor with Emitter Base Voltage 6 V, Base Emitter Saturation Voltage 2 V, Emitter Cut off Current 100 nA, Collector Base Voltage 100 V, Collector Cut off Current 100 nA. Tags: Surface Mount, NPN Transistor. More details for BCP56MTWG can be seen below.