The FDB0190N807L from onsemi is a MOSFET with Continous Drain Current 270 A, Drain Source Resistance 1.7 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 FDB0190N807L can be seen below.