The STH240N75F3-6 from STMicroelectronics is a MOSFET with Continous Drain Current 180 A, Drain Source Resistance 2.6 to 3 Milliohm, Drain Source Breakdown Voltage 75 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for STH240N75F3-6 can be seen below.