The MSC400SMA330B4 from Microchip Technology is a MOSFET with Continous Drain Current 11 A, Drain Source Resistance 416 to 520 milliohm, Drain Source Breakdown Voltage 3300 V, Gate Source Voltage -10 to 23 V, Gate Source Threshold Voltage 1.9 to 2.97 V. Tags: Through Hole. More details for MSC400SMA330B4 can be seen below.