The AUIRFZ48N from Infineon Technologies is a MOSFET with Continous Drain Current 49 to 69 A, Drain Source Resistance 11 to 14 Mohms, Drain Source Breakdown Voltage 55 V, Gate Source Voltage 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for AUIRFZ48N can be seen below.