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TUM/TUW Series
Ceramic Housed Axial Terminal Power
The TUM/TUW Series resistors are our most eco-
nomical power resistors. They are 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.
FEATURES
•EconomicalCommercialGradeforgeneralpurpose
use
•WirewoundandMetalOxideconstruction
•Wideresistancerange
•Flameproofinorganicconstruction
SERIES SPECIFICATIONS
CHARACTERISTICS
Series Wattage Ohms Voltage Element
TUW3 3 0.01-39 350 Wirewound
TUW5 5 0.01-47 350 Wirewound
TUW7 7 0.10-680 500 Wirewound
TUW10 10 0.10-990 750 Wirewound
TUW15 15 0.10-1000 1000 Wirewound
TUM3 3 180-33K 350 Metal oxide
TUM5 5 220-50K 350 Metal oxide
TUM7 7 910-50K 500 Metal oxide
TUM10 10 1000-50K 750 Metal oxide
TUM15 15 1100-150K 1000 Metal oxide
Derating Curve
100
Percent Rated Watts
Ambient Temperature, oC
60
20
0
275
80
40
100 200 25070 150
Housing
Ceramic
Core
Fiberglass or metal oxide
Filling
Cement based
Tolerance
5% standard
TCR
0.01-20Ω ±400ppm/°C
20-150KΩ ±350ppm/°C
Dielectric withstanding
voltage
1,000VAC
Short time overload
TUW: 10x rated power for 5 sec.
TUM: 5x rated power for 5 sec.
(continued)