OptiMOS™ 6 power MOSFET 150 V normal level in TO-220 package IPP038N15NM6 OptiMOS™ 6 150 V in normal level is setting a new level of performance within the highly competitive 150 V market. OptiMOS™ 6 150 V technology was designed to fulfill the requirements of both high and low switching frequency applications, in hard and soft switching.