The IPB120N04S4-04 from Infineon Technologies is a MOSFET with Continous Drain Current 91 to 120 A, Drain Source Resistance 3.2 to 3.6 Mohms, Drain Source Breakdown Voltage 40 V, Gate Source Voltage 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Through Hole. More details for IPB120N04S4-04 can be seen below.