The AP4008QD is a 40V, 20A, 17mO@10V, 10A, 21W, 2 N-Channel DFN-8 (3.2x3.2) MOSFET manufactured by Quan Li. It is ROHS compliant and designed for use in automotive and industrial applications. Features include low on-resistance, fast switching performance, low life time degradation, improved EOS protection, and improved EMI/EMC performance. The low on-resistance allows for higher current to be handled while maintaining low battery current draw and low device temperature rise. The fast switching speed allows for improved device noise rejection and improved system response, while the low lifetime degradation of the part ensures that the device will maintain its performance for a longer life span. The improved EOS protection prevents damage when exposed to high electric fields, while the improved EMI/EMC performance provides improved compatibility with external components.