The SSF1020 from FrelTec is a MOSFET with Continous Drain Current 50 to 60 A, Drain Source Resistance 16 to 20 milli-ohm, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2.0 to 4.0 V. Tags: Through Hole. More details for SSF1020 can be seen below.