The MJE172 from Lision Technology is a Bipolar Junction Transistor with Emitter Base Voltage 7 V, Collector Base Voltage 100 V, Collector Emitter Breakdown Voltage 80 V, Collector Emitter Voltage 80 V, Continuous Collector Current 3000 mA. Tags: Through Hole, PNP Transistor. More details for MJE172 can be seen below.