The AC-CS resistor series is designed with specially selected resistive wire and multilayer coating allowing for well-defined fusing behavior when exposed to overload power. For example, the AC01-CS has a fusing time lower than 30 seconds for a 30W overload. The AC03-CS series has a fusing time of less than 25 seconds when exposed to a 45W overload condition, while the AC05-CS series has a fusing time of less than 45 seconds when exposed to 100W.