TWW/TWM Series The TWW/TWM series radial lead power resistors offer significant board space savings over axial leaded products. Generated heat is also kept away from the circuit board. They are recommended for commercial applications requiring low cost. Ceramic Housed Radial Lead Power Resistors 0.49" .04 12.5mm 1 0.35" .04 9 mm 1 FEATURES * Economical Commercial Grade for general purpose use * Wirewound and Metal Oxide construction * Wide resistance range * Flameproof inorganic construction H 0.14" .04 3.5mm 1 SPECIFICATIONS Material Housing: Ceramic Core: Fiberglass or metal oxide Filling: Cement based Electrical Tolerance: 5% standard Temperature coeff.: .01-20 400ppm/C 20-10 350ppm/C Dielectric withstanding voltage: 1,000VAC Short time overload: TWW: 10x rated power for 5 sec. TWM: 5x rated power for 5 sec. DERATING CURVE 20 gauge 0.20" .08 5.0mm 2 Series Wattage Ohms Height (in./mm) TWW3 3 .01-39 0.98 / 25 TWW5 5 .01-47 0.98 / 25 TWW10 10 .04-990 1.97 / 50 TWM3 3 180-50K 0.98 / 25 TWM5 5 200-50K 0.98 / 25 TWM10 10 1000-50K 1.97 / 50 Percent Rated Watts 100 Voltage Element 250 Wire 350 Wire 750 Wire 250 Metal oxide 350 Metal oxide 750 Metal oxide 80 60 40 20 0 70 100 150 200 250 275 Ambient Temperature, C STOCK PART NUMBERS FOR STANDARD RESISTANCE VALUES 44 Ohms 3 Watt 5 Watt 10 Watt 0.01 0.02 0.03 0.04 0.05 0.10 0.15 0.20 0.27 0.30 0.33 0.39 0.43 0.47 0.56 0.68 0.75 0.82 TWW_ _3JR01 _3JR02 _3JR03 _3JR04 _3JR05 _3JR10 _3JR15 _3JR20 _3JR27 _3JR30 _3JR33 _3JR39 _3JR43 _3JR47 _3JR56 _3JR68 _3JR75 _3JR82 TWW_ _5JR01 _5JR02 _5JR03 _5JR04 _5JR05 _5JR10 _5JR15 _5JR20 _5JR27 _5JR30 _5JR33 _5JR39 _5JR43 _5JR47 _5JR56 _5JR68 _5JR75 _5JR82 TWW_ _ _ _ _10JR04 _10JR05 _10JR10 _10JR15 _10JR20 _10JR27 _10JR30 _10JR33 _10JR39 _10JR43 _10JR47 _10JR56 _10JR68 _10JR75 _10JR82 Ohms 1.0 1.5 2.0 2.7 3.0 3.3 3.9 4.3 4.7 5.6 6.8 7.5 8.2 10 15 20 27 30 3 Watt 5 Watt 10 Watt TWW_ _3J1R0 _3J1R5 _3J2R0 _3J2R7 _3J3R0 _3J3R3 _3J3R9 _3J4R3 _3J4R7 _3J5R6 _3J6R8 _3J7R5 _3J8R2 _3J10R _3J15R _3J20R _3J27R _3J30R TWW_ _5J1R0 _5J1R5 _5J2R0 _5J2R7 _5J3R0 _5J3R3 _5J3R9 _5J4R3 _5J4R7 _5J5R6 _5J6R8 _5J7R5 _5J8R2 _5J10R _5J15R _5J20R _5J27R _5J30R TWW_ _10J1R0 _10J1R5 _10J2R0 _10J2R7 _10J3R0 _10J3R3 _10J3R9 _10J4R3 _10J4R7 _10J5R6 _10J6R8 _10J7R5 _10J8R2 _10J10R _10J15R _10J20R _10J27R _10J30R Ohms 33 39 43 47 56 68 75 82 100 150 200 270 300 330 390 430 470 560 3 Watt TWW_ _3J33R _3J39R 5 Watt TWW_ _5J33R _5J39R TWM3J43R _5J43R _3J47R _5J47R _3J56R TWM5J56R _3J68R _5J68R _3J75R _5J75R _3J82R _5J82R _3J100 _5J100 _3J150 _5J150 _3J200 _5J200 _3J270 _5J270 _3J300 _5J300 _3J330 _5J330 _3J390 _5J390 _3J430 _5J430 _3J470 _5J470 _3J560 _5J560 10 Watt TWW_ _10J33R _10J39R _10J43R _10J47R _10J56R _10J68R _10J75R _10J82R _10J100 _10J150 _10J200 _10J270 _10J300 _10J330 _10J390 _10J430 _10J470 _10J560 Ohms 680 750 820 1,000 1,500 2,000 2,700 3,000 3,300 3,900 4,300 4,700 5,600 6,800 7,500 8,200 10,000 3 Watt 5 Watt TWM_ _3J680 _3J750 _3J820 _3J1K0 _3J1K5 _3J2K0 _3J2K7 _3J3K0 _3J3K3 _3J3K9 _3J4K3 _3J4K7 _3J5K6 _3J6K8 _3J7K5 _3J8K2 _3J10K TWM_ TWW_ _5J680 _10J680 _5J750 _10J750 _5J820 _10J820 _5J1K0 TWM10J1K0 _5J1K5 _10J1K5 _5J2K0 _10J2K0 _5J2K7 _10J2K7 _5J3K0 _10J3K0 _5J3K3 _10J3K3 _5J3K9 _10J3K9 _5J4K3 _10J4K3 _5J4K7 _10J4K7 _5J5K6 _10J5K6 _5J6K8 _10J6K8 _5J7K5 _10J7K5 _5J8K2 _10J8K2 _5J10K _10J10K 10 Watt Ohmite Mfg. Co. 1600 Golf Rd., Suite 850, Rolling Meadows, IL 60008 * Tel. 1-866-9-OHMITE * Fax 1-847-574-7522 * www.ohmite.com * info@ohmite.com 44