OptiMOS 7™ 40V sTOLL 7x8 New benchmark for best Ron, high power density & efficiency Automotive standard sTOLL 7x8 (HSOF-5) offers high current capability of 280A at a footprint of 7x8mm². In combination with Infineon’s leading OptiMOS-7™ 40V Power MOSFET technology it offers best in class power density and power efficiency at Infineon’s high-quality level for robust automotive packages.