The TUM/TUW Series resistors are Ohmite’s most economical power resistors. Sizes up to 15 watts and resistance values up to 150K ohms are available. Two constructions are used to obtain a wide resistance range. The TUW is a standard wirewound and the TUM is constructed with Metal Oxide. The TUW/TUM resistor series is recommended for commercial applications where low cost is critical. They are available in small standard packs for standard values, or bulk packaged for even lower costs.