The APT6029SLL from Microchip Technology is a MOSFET with Continous Drain Current 21 A, Drain Source Resistance 290 milliohm, Drain Source Breakdown Voltage 600 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 3 to 5 V. Tags: Surface Mount. More details for APT6029SLL can be seen below.