TWM/TWW Series
Ceramic Housed Radial Terminal Power
The TWM/TWW series radial terminal power resis-
tors offer significant board space savings over axial
terminal products. Generated heat is also kept away
from the circuit board.
They are recommended for commercial applica-
tions requiring low cost.
F e aT u r e S
• Economical Commercial Grade for general purpose
use
• Wirewound and Metal Oxide construction
• Wide resistance range
• Flameproof inorganic construction
S e r I e S S P e C I F I C aT I O N S
Series
TWW3
TWW5
TWW10
TWM3
TWM5
TWM10
Wattage
3
5
10
3
5
10
Resistance
0.01-39Ω
0.01-47Ω
0.04-990Ω
43-50KΩ
51-50KΩ
1000-50KΩ
Voltage
250
350
750
250
350
750
Element
Wire
Wire
Wire
Metal oxide
Metal oxide
Metal oxide
CharaCTerISTICS
Housing
Ceramic
Core
Fiberglass
Filling
Cement based
Tolerance
5% standard
Temperature coefficient
0.01-20Ω ±400ppm/°C;
>20-10Ω ±350ppm/°C
Dielectric withstanding voltage
1,000VAC
Short time overload
TWW: 10x rated power for 5 sec.;
TWM: 5x rated power for 5 sec.
Operating Temperature
-55°C to 275°C
Storage Temperature
15℃-35℃, humidity: 25%-75%
Derating
100
Percent Rated Watts
80
60
40
20
0
70 100
150
200
250 275
Ambient Temperature, C
(continued)
96
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TWM/TWW Series
Ceramic Housed Radial Terminal Power
dIMeNSIONS
0.49"
±
.04
12.5mm
±1
W
Series
Height
Width
(in./mm) ±1mm
0.98 / 25
0.98 / 25
1.97 / 50
0.98 / 25
0.98 / 25
1.97 / 50
0.33 / 8.5
0.35 / 9
0.35 / 9
0.33 / 8.5
0.35 / 9
0.35 / 9
H
TWW3
(marked
surface)
TWW5
TWW10
TWM3
TWM5
TWM10
0.20"±.04
5mm
±1
0.20"±.08
5mm
±2
5mm
(10w only leads not centered;
3w & 5w leads centered)
20
gauge
hOW TO Order
Tolerance
J = 5%
E = RoHS compliant
TWW3JR05E
Series
Wattage Resistance Value
TWM = Ceramic housed
3
Example:
metal oxide radial 5
R05 = 0.05Ω
TWW= Ceramic housed 10
R56 = 0.56Ω
wirewound radial
1R0 = 1Ω
8R2 = 8.2Ω
270 = 270Ω
1K0 = 1,000Ω
8K2 = 8,200Ω
10K =10,000Ω
Standard part numbers for TWW series
TWW10J–
10
5
3
3
Wattage
TWW5J–
Ohmic value
Ohmic value
Part No.
Prefix
Suffix
0.01
–––R01E
0.02
–––R02E
0.03
–––R03E
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
1.0
–––1R0E
Part No.
Prefix
Suffix
–––1R5E
–––2R0E
–––2R7E
–––3R0E
–––3R3E
–––3R9E
–––4R3E
–––4R7E
–––5R6E
–––6R8E
–––7R5E
–––8R2E
–––10RE
–––15RE
–––20RE
–––22RE
–––27RE
–––30RE
–––33RE
TWW3J–
TWW3J–
TWW10J–
10
TWW10J–
10
TWM10J–
10
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
22
27
30
33
39
43
47
56
68
75
82
100
150
200
270
300
330
390
430
470
560
680
750
820
Part No.
Prefix
Suffix
–––39RE
–––43RE
–––47RE
–––56RE
–––68RE
–––75RE
–––82RE
–––100E
–––150E
–––200E
–––270E
–––300E
–––330E
–––390E
–––430E
–––470E
–––560E
–––680E
–––750E
–––820E
43
47
56
68
75
82
100
150
200
270
300
330
390
430
470
560
680
Part No.
Prefix
Suffix
––– 43RE
––– 47RE
––– 56RE
––– 68RE
––– 75RE
––– 82RE
––– 100E
––– 150E
––– 200E
––– 270E
––– 300E
––– 330E
––– 390E
––– 430E
––– 470E
––– 560E
––– 680E
750
820
1000
1500
2000
2700
3000
3300
3900
4300
4700
5600
6800
7500
8200
10000
Part No.
Prefix
Suffix
––– 750E
––– 820E
–––
1K0
–––
1K5
–––
2K0
–––
2K7
–––
3K0
–––
3K3
–––
3K9
–––
4K3
–––
4K7
–––
5K6
–––
6K8
–––
7K5
–––
8K2
–––
10K
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
97
TWM10J–
10
5
3
5
5
3
Ohmic value
Ohmic value
Ohmic value
TWW5J–
TWW3J–
TWW5J–
TWM3J–
TWM5J–
TWM3J–
3
TWM5J–
5
Wattage
Wattage
Standard part numbers for TWM series
Wattage
Wattage
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