The STW52NK25Z from STMicroelectronics is a MOSFET with Continous Drain Current 52 A, Drain Source Resistance 33 to 45 Milliohm, Drain Source Breakdown Voltage 250 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 3 to 4.5 V. Tags: Through Hole. More details for STW52NK25Z can be seen below.