80 V, N-Ch, 2.1 mΩ max, Automotive MOSFET, sTOLL (7x8), OptiMOS™ 5 The IAUA220N08S5N021 is a 2.1mR 80V MOSFET in an sTOLL high power leadless 7x8 mm2 package, using Infineon's leading OptiMOS™ 5 technology. Next to others it is used in LED Lighting as well as 48V Auxiliaries like HVAC Compressors and Safety Switches.