OptiMOS™ 6 n-channel power MOSFET 80 V in PQFN 3.3x3.3 Source Down Center Gate Dual-Side Cooling OptiMOS™ 6 80 V - the latest power MOSFET technology offering industry benchmark performance. Compared to its predecessor, OptiMOS™ 5, Infineon's latest wafer technology offers significant performance improvement resulting to higher system efficiency and power density.