The STD3NM60N from STMicroelectronics is a MOSFET with Continous Drain Current 3.3 A, Drain Source Resistance 1600 to 1800 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 STD3NM60N can be seen below.