The FDBL0150N80 from onsemi is a MOSFET with Continous Drain Current 300 A, Drain Source Resistance 1.4 milliohm, Drain Source Breakdown Voltage 80 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 4 V. Tags: Surface Mount. More details for FDBL0150N80 can be seen below.