The STF8NK100Z from STMicroelectronics is a MOSFET with Continous Drain Current 6.5 A, Drain Source Resistance 1600 to 1850 Milliohm, Drain Source Breakdown Voltage 1000 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 3 to 4.5 V. Tags: Through Hole. More details for STF8NK100Z can be seen below.