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TUM3J8R2E Datasheet, PDF (1/1 Pages) Ohmite Mfg. Co. – Ceramic Housed Axial Terminal Power
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