The IPD100N04S4-02 from Infineon Technologies is a MOSFET with Continous Drain Current 100 A, Drain Source Resistance 1.7 to 2 Mohms, Drain Source Breakdown Voltage 40 V, Gate Source Voltage 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for IPD100N04S4-02 can be seen below.