The most important aspect of thermal management is selecting the proper fan for your application. This paper will first document how to determine how much airflow is required based on the amount of heat that needs to be removed. Once that is determined, then you must select the proper fan for your application. Sanyo Denki manufactures a variety of fans for various applications. It is important to select the proper fan for your application. In the paper, you will learn about the different types of fans and where they are typically used so you can choose the proper cooling solution.