The IPI45N06S4-09 from Infineon Technologies is a MOSFET with Continous Drain Current 45 A, Drain Source Resistance 7.6 to 9.4 Mohms, Drain Source Breakdown Voltage 60 V, Gate Source Voltage 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Through Hole. More details for IPI45N06S4-09 can be seen below.