To determine which type of sealed switch is right for a user’s application, this presentation will look at the difference between process seal and IP rated seal. Process seal means that the switch can withstand a typical water washing procedure that takes place during the PCB assembly cleaning process to remove flux and other contaminates from the finished PCB assembly. A switch that is IP rated is protected from dust and moisture at various predefined levels per the international classification system known as the IP Rate. This system uses a two-digit code to inform users of the product's protection level, which will be further explained.