When modern circuits need power resistors, the choice is often wirewound. Today’s wire-wound resistors are rugged and reliable. They are small and compatible with modern PC-board and surface mount manufacturing systems. And, new technology resistors still fall short of wire-wounds. Look at the chart: although metal foil technology is a close second to wirewounds, other technologies are generally unable to measure up in power rating, tolerance and TCR.

power resistors