The TSM600N25ECH from Taiwan Semiconductor is a MOSFET with Continous Drain Current 8 A, Drain Source Resistance 500 to 600 milliohm, Drain Source Breakdown Voltage 250 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 3 to 5 V. Tags: Through Hole. More details for TSM600N25ECH can be seen below.