The MJE4343 from MOSPEC SEMICONDUCTOR is a Bipolar Junction Transistor with Emitter Base Voltage 7 V, Base Emitter Saturation Voltage 3.9 V, Emitter Cut off Current 1 mA, Collector Base Voltage 160 V, Collector Cut off Current 0.75 mA. Tags: Through Hole, NPN Transistor. More details for MJE4343 can be seen below.