Ferrule, Subminiature and surface mount fuse sizes are standard throughout the electronic industry. Through-hole axial and radial leaded products allow fuses to be PCB mounted. Eaton offers electronic fuses ranging from 32V to 450V. Note: Voltage ratings can and do vary inside a fuse family or series, as well as interrupting ratings, I²t and agency listings. Always consult data sheets for the ratings that apply to the desired voltage and current rating of the application. Note that Eaton offers electrical  fuses to even higher voltage levels, but these higher voltage fuses are typically not used in DC-DC converter designs and are outside the scope of this training module.