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
F ꢀ aT U ꢁ ꢀ S
costs.
•ꢀEconomicalꢀCommercialꢀGradeꢀforꢀgeneralꢀpurposeꢀ
use
•ꢀWirewoundꢀandꢀMetalꢀOxideꢀconstruction
•ꢀWideꢀresistanceꢀrange
•ꢀFlameproofꢀinorganicꢀconstruction
SꢀꢁIꢀS SPꢀCIFICaTIONS
Series
Wattage
Ohms
0.01-39
0.01-47
Voltage
350
350
500
750
1000
350
350
500
750
Element
TUW3
TUW5
TUW7
TUW10
TUW15
TUM3
TUM5
TUM7
TUM10
TUM15
3
5
7
10
15
3
5
7
Wirewound
Wirewound
Wirewound
Wirewound
Wirewound
Metal oxide
Metal oxide
Metal oxide
Metal oxide
Metal oxide
0.10-680
0.10-990
0.10-1000
180-33K
220-50K
910-50K
1000-50K
1100-150K
10
15
1000
ChaꢁaCTꢀꢁISTICS
Ceramic
Housing
Core
Derating Curve
Fiberglass or metal oxide
Cement based
100
80
60
40
20
0
Filling
5% standard
Tolerance
TCR
0.01-20Ω ±400ppm/°C
20-150KΩ ±350ppm/°C
1,000VAC
Dielectric withstanding
voltage
70 100
150
200
250 275
TUW: 10x rated power for 5 sec.
TUM: 5x rated power for 5 sec.
Short time overload
Ambient Temperature, oC
(continued)
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
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