The DI13001 from Diotec Semiconductor is a Bipolar Junction Transistor with Emitter Base Voltage 6 V, Base Emitter Saturation Voltage 1.5 V, Collector Base Voltage 6 V, Collector Emitter Voltage 450 V, Continuous Collector Current 250 mA. Tags: Surface Mount, NPN Transistor. More details for DI13001 can be seen below.