The MJ10004 from MOSPEC SEMICONDUCTOR is a Bipolar Junction Transistor with Emitter Base Voltage 8 V, Base Emitter Saturation Voltage 2.5 V, Emitter Cut off Current 175 mA, Collector Base Voltage 450 V, Collector Cut off Current 5 mA. Tags: Through Hole, NPN Transistor. More details for MJ10004 can be seen below.