TUM/TUW Series
Ceramic Housed Axial Terminal Power
1.38" ±.197
35mm ±5
L
(32mm on 3w)
0.03" ±.002
0.8mm ±.05
H
(0.7mm on 3w)
W
Series Wattage Ohms
Dimensions (in. / mm)
Length
Height
Width
(±1mm) (±1mm) (±1mm) Voltage
Element
TUW3 3 0.01-39 0.87 / 22 0.31 / 8 0.31 / 8 350 Wirewound
TUW5 5 0.01-47 0.87 / 22 0.35 / 9 0.39 / 10 350 Wirewound
TUW7 7 0.10-680 1.48 / 35 0.35 / 9 0.39 / 10 500 Wirewound
TUW10 10 0.10-990 1.93 / 49 0.35 / 9 0.39 / 10 750 Wirewound
TUW15 15 0.10-1000 1.93 / 49 .453/11.5 0.49 / 12.5 1000 Wirewound
TUM3 3 180-33K 0.87 / 22 0.31 / 8 0.31 / 8 350 Metal oxide
TUM5 5 220-50K 0.87 / 22 0.35 / 9 0.39 / 10 350 Metal oxide
TUM7 7 910-50K 1.48 / 35 0.35 / 9 0.39 / 10 500 Metal oxide
TUM10 10 1000-50K 1.93 / 49 0.35 / 9 0.39 / 10 750 Metal oxide
TUM15 15 1100-150K 1.93 / 49 .453/11.5 0.49 / 12.5 1000 Metal oxide
The TUM/TUW Series resistors are our most economical power
resistors. They are recommended for commercial applications
where low cost is critical.
They are available in small standard packs for standard val-
ues, or bulk packaged for even lower costs.
FEATURES
• Economical Commercial Grade
for general purpose use
• Wirewound and Metal Oxide
construction
• Wide resistance range
• Flameproof inorganic construc-
tion
DERATING CURVE
100
80
60
40
20
0
70 100 150 200 250 275
Ambient Temperature, °C
SPECIFICATIONS
Material
Housing: Ceramic
Core: Fiberglass or metal oxide
Filling: Cement based
Electrical
Tolerance: 5% standard
Temperature coeff.:
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.
ORDERING INFORMATION
Tolerance
J = 5%
E = RoHS compliant
TUM3J8R2E
Series
Wattage Resistance Value
TUM = Ceramic Housed 3
Example:
Metal Oxide
5
R50=0.50Ω
TUW = Ceramic Housed 7
1R0=1Ω
Wirewound
10
8R2=8.2Ω
15
250=250Ω
1K0=1,000Ω
8K2=8,200Ω
10K=10,000Ω
Wattage
STANDARD PART NUMBERS FOR TUW/TUM SERIES
Wattage
Wattage
Wattage
Part No.
Prefix
Suffix
0.01 –––R01E
0.01 –––R01E
0.02 –––R02E
0.04 –––R04E
0.05 –––R05E
0.10 –––R10E
0.15 –––R15E
0.20 –––R20E
0.27 –––R27E
0.30 –––R30E
0.33 –––R33E
0.39 –––R39E
0.43 –––R43E
0.47 –––R47E
0.56 –––R56E
0.68 –––R68E
0.75 –––R75E
0.82 –––R82E
Part No.
Prefix
Suffix
1.0 –––1R0E
1.5 –––1R5E
2.0 –––2R0E
2.7 –––2R7E
3.0 –––3R0E
3.3 –––3R3E
3.9 –––3R9E
4.3 –––4R3E
4.7 –––4R7E
5.6 –––5R6E
6.8 –––6R8E
7.5 –––7R5E
8.2 –––8R2E
10 –––10RE
15 –––15RE
20 –––20RE
27 –––27RE
30 –––30RE
Part No.
Prefix
Suffix
33 –––33RE
39 –––39RE
43 –––43RE
47 –––47RE
56 –––56RE
68 –––68RE
75 –––75RE
82 –––82RE
100 –––100E
150 –––150E
200 –––200E
270 –––270E
300 –––300E
330 –––330E
390 –––390E
430 –––430E
470 –––470E
560 –––560E
Part No.
Prefix
Suffix
680 –––680E
750 –––750E
820 –––820E
1000 –––1K0
1500 –––1K5
2000 –––2K0
2700 –––2K7
3000 –––3K0
3300 –––3K3
3900 –––3K9
4300 –––4K3
4700 –––4K7
5600 –––5K6
6800 –––6K8
7500 –––7K5
8200 –––8K2
10000 –––10K
Check product availability at www.ohmite.com
Shaded area: change prefix to TUM
42 Ohmite Mfg. Co. 1600 Golf Rd., Rolling Meadows, IL 60008 • 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com