The FDB016N04AL7 from onsemi is a MOSFET with Continous Drain Current 306 A, Drain Source Resistance 1.6 milliohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 3 V. Tags: Surface Mount. More details for FDB016N04AL7 can be seen below.