The TPN3300ANH from Toshiba is a MOSFET with Continous Drain Current 21 A, Drain Source Resistance 28 to 33 milliohm, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for TPN3300ANH can be seen below.