OptiMOS™ 6 power MOSFET 150 V normal level in TOLT package for top-side cooling IPTC034N15NM6 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. Combined with TOLT package, it enables top-side cooling for superior thermal performance, dissipating up to 95% of the heat through the heatsink and away from the PCB.