Resistors Handle High Power

A series of tubular resistors are composed of wire wound on ceramic with enamel coating. Units are available as fixed, tapped, or adjustable with ratings from 25W to 225W. Values range from 0.1 ohms to 1.5 Megaohms at tolerances of 1% to 5% and ±20 to 400 ppm/°C. These ratings are for single resistors mounted in free air; designers should contact the factory for information on mounting in groups.