The APT30M61BLL from Microchip Technology is a MOSFET with Continous Drain Current 54 A, Drain Source Resistance 61 milliohm, Drain Source Breakdown Voltage 300 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 3 to 5 V. Tags: Through Hole. More details for APT30M61BLL can be seen below.