Power resistors come in all shapes, sizes, resistances and power ratings. Power ratings of discrete power resistors range from about 1W to 2.5kW. Resistances generally range from 0.01Ω to 100K. They ...

Quality Resistors also come in many quality grades. For some common carbon composition, thin-film, and thick-film resistors, there is an additional band, sometimes metallic in color, indicating the ...

For the PDF version of this article, click here. Motor controllers used to power, stop and control the speed of a variety of motors must deal with a wide variety of surges due to switching events.