This document describes the features and characteristics of the HUF75343G3, HUF75343P3, HUF75343S3, HUF75343S3S N-Channel UltraFET Power MOSFETs produced by Fairchild Semiconductor Corporation. It has advantages such as low on-resistance, high energy withstand capability, low reverse recovery time, and stored charge, making it suitable for applications where power efficiency is important.