The BCP56-10 from Nexperia is a Bipolar Junction Transistor with Emitter Base Voltage 5 V, Emitter Cut off Current 100 nA, Collector Base Voltage 100 V, Collector Cut off Current 0.1 to 10 uA, Collector Emitter Breakdown Voltage 80 V. Tags: Surface Mount, NPN Transistor. More details for BCP56-10 can be seen below.