The JSM100N03 from JSMicro Semiconductor is a MOSFET with Continous Drain Current 100 A, Drain Source Resistance 4.0 to 5.5 milli-ohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.0 to 3.0 V. Tags: Surface Mount. More details for JSM100N03 can be seen below.