The CP388X-BCY59-X-WN from Central Semiconductor is a Bipolar Junction Transistor with Emitter Base Voltage 7 V, Base Emitter Saturation Voltage 0.6 to 1.2 V, Emitter Cut off Current 10 nA, Collector Base Voltage 45 V, Collector Cut off Current 10 nA. Tags: Bare Die, NPN Transistor. More details for CP388X-BCY59-X-WN can be seen below.