Trench-Gate technology (generation 6 and 7) are the most dominant in the industry mainly because of efficiency and application flexibility. IR also has a wide range of NPT Planar-Gate (generation 5). The reason for this is the NPT Planar-Gate is utilized motor drive applications due to its ruggedness and its very significant short circuit capability of 10 µs and above. IR also makes PT Planar-Gate (generation 4) available as it is a legacy product which still performs quite well in power supply applications.