The FDBL0200N100 from onsemi is a MOSFET with Continous Drain Current 300 A, Drain Source Resistance 2 milliohm, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 4.5 V. Tags: Surface Mount. More details for FDBL0200N100 can be seen below.