The FDB045AN08_F085 from onsemi is a MOSFET with Continous Drain Current 80 A, Drain Source Resistance 4.5 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 FDB045AN08_F085 can be seen below.