The IPD65R660CFDA from Infineon Technologies is a MOSFET with Continous Drain Current 3.8 to 6 A, Drain Source Resistance 0.594 to 1.54 Mohms, Drain Source Breakdown Voltage 650 V, Gate Source Voltage 20 V, Gate Source Threshold Voltage 3.5 to 4.5 V. Tags: Through Hole. More details for IPD65R660CFDA can be seen below.