The JSM40N10 from JSMicro Semiconductor is a MOSFET with Continous Drain Current 40 A, Drain Source Resistance 13.8 to 26 milli-ohm, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.4 to 2.5 V. Tags: Through Hole. More details for JSM40N10 can be seen below.