The STD9NM60N from STMicroelectronics is a MOSFET with Continous Drain Current 6.5 A, Drain Source Resistance 630 to 745 Milliohm, Drain Source Breakdown Voltage 600 V, Gate Source Voltage - 25 to 25 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for STD9NM60N can be seen below.