The ISM80NT1-20 from ISOCOM is a MOSFET with Continous Drain Current 20 A, Drain Source Resistance 0.365 to 0.690 ohm, Drain Source Breakdown Voltage 800 to 900 V, Gate Source Voltage -8 to 15 V, Gate Source Threshold Voltage 1.8 to 3.5 V. Tags: Through Hole. More details for ISM80NT1-20 can be seen below.