The FF08MR12W1MA1_B11A from Infineon Technologies is a MOSFET with Continous Drain Current 150 A, Drain Source Resistance 7.33 to 12.1 milliohm, Drain Source Breakdown Voltage 1200 V, Gate Source Voltage -10 to 20 V, Gate Source Threshold Voltage 3.25 to 5.55 V. Tags: Chassis Mount. More details for FF08MR12W1MA1_B11A can be seen below.