The CP310-2N3440-CT from Central Semiconductor is a Bipolar Junction Transistor with Emitter Base Voltage 7 V, Base Emitter Saturation Voltage 1.3 V, Emitter Cut off Current 20 µA, Collector Base Voltage 300 V, Collector Cut off Current 20 µA. Tags: Bare Die, NPN Transistor. More details for CP310-2N3440-CT can be seen below.