The TWM/TWW series radial terminal power resistors offer
significant board space savings over axial terminal products.
Generated heat is also kept away from the circuit board.
They are recommended for commercial applications requiring
low cost.
TWM/TWW Series
Ceramic Housed Radial Terminal Power
0.49"
±
.04
12.5mm
±1
0.35"
±
.04
9 mm
±
1
FEATURES
• Economical Commercial Grade
for general purpose use
• Wirewound and Metal Oxide
construction
• Wide resistance range
• Flameproof inorganic construc-
tion
SPECIFICATIONS
Material
Housing:
Ceramic
Core:
Fiberglass or metal oxide
Filling:
Cement based
Electrical
Tolerance:
5% standard
Temperature coeff.:
.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 Temp.:
-55°C to 275°C
Storage Temp.:
6°C to 36°C
DERATING
100
Percent Rated Watts
80
60
40
20
0
70 100
150
200
250 275
Ambient Temperature,
°C
H
(marked
surface)
0.14"
±
.04
3.5mm
±
1
0.20"
±
.08
5.0mm
±
2
20
gauge
0.20"
±.04
5mm
±1
O R D E R I N G I N F O R M AT I O N
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
Series Wattage
Ohms Height (in./mm) Voltage Element
TWW3
3
.01-39
0.98 /
25
250
Wire
TWW5
5
.01-47
0.98 /
25
350
Wire
TWW10
10
.04-990
1.97 /
50
750
Wire
TWM3
3
43-50K
0.98 /
25
250 Metal oxide
TWM5
5
51-50K
0.98 /
25
350 Metal oxide
TWM10
10 1000-50K
1.97 /
50
750 Metal oxide
S TA N D A R D PA RT N U M B E R S F O R T W W S E R I E S
TWW10J–
10
TWW10J–
10
TWW10J–
10
Wattage
5
3
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
TWW3J–
TWW5J–
Wattage
5
3
Ohmic value
Part No.
Prefix
Suffix
–––1R5E
–––2R0E
–––2R7E
–––3R0E
–––3R3E
–––3R9E
–––4R3E
–––4R7E
–––5R6E
–––6R8E
–––7R5E
–––8R2E
–––10RE
–––15RE
–––20RE
–––27RE
–––30RE
–––33RE
–––39RE
TWW3J–
TWW5J–
Wattage
3
5
Ohmic value
Part No.
Prefix
Suffix
–––43RE
–––47RE
–––56RE
–––68RE
–––75RE
–––82RE
–––100E
–––150E
–––200E
–––270E
–––300E
–––330E
–––390E
–––430E
–––470E
–––560E
–––680E
–––750E
–––820E
TWW3J–
TWW5J–
S TA N D A R D PA R T N U M B E R S F O R T W M S E R I E S
Wattage
TWM10J–
10
5
3
Ohmic value
Part No.
Prefix
Suffix
–––
43RE
–––
47RE
–––
56RE
–––
68RE
–––
75RE
–––
82RE
–––
100E
–––
150E
–––
200E
–––
270E
–––
300E
–––
330E
–––
390E
–––
430E
–––
470E
–––
560E
–––
680E
Ohmic value
Part No.
Prefix
Suffix
–––
750E
–––
820E
–––
1K0
–––
1K5
–––
2K0
–––
2K7
–––
3K0
–––
3K3
–––
3K9
–––
4K3
–––
4K7
–––
5K6
–––
6K8
–––
7K5
–––
8K2
–––
10K
TWM3J–
TWM5J–
Wattage
TWM10J–
10
TWM3J–
3
TWM5J–
5
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
27
30
33
39
43
47
56
68
75
82
100
150
200
270
300
330
390
430
470
560
680
750
820
43
47
56
68
75
82
100
150
200
270
300
330
390
430
470
560
680
750
820
1000
1500
2000
2700
3000
3300
3900
4300
4700
5600
6800
7500
8200
10000
Check product availability at
www.ohmite.com
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
41
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