The TPN4R712MD from Toshiba is a MOSFET with Continous Drain Current -36 A, Drain Source Resistance 3.8 to 8.1 milliohm, Drain Source Breakdown Voltage -20 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage -1.2 to -0.5 V. Tags: Surface Mount. More details for TPN4R712MD can be seen below.