TWM/TWW Series

TWM/TWW Series
Ceramic Housed Radial Terminal Power
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.
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 ER I E S S P E C I F I C A T 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
c h a r a ct e r istics
Core Fiberglass
Filling Cement based
Tolerance 5% standard
Temperature coeffIicient 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
Derating
100
Percent Rated Watts
Housing Ceramic
80
60
40
20
0
70 100
150
200
250 275
Ambient Temperature, oC
Storage Temperature 15℃-35℃, humidity: 25%-75%
(continued)
98
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected]
TWM/TWW Series
Ceramic Housed Radial Terminal Power
d im e nsions
0.49" ±.04
12.5mm ±1
W
Series
Height
Width
(in./mm) ±1mm
TWW3
H
(marked TWW5
surface) TWW10
0.20" ±.04
5mm ±1
20
gauge
0.20"±.08
5mm ±2
0.98 / 25
0.33 / 8.5
0.98 / 25
0.35 / 9
1.97 / 50
0.35 / 9
TWM3
0.98 / 25
0.33 / 8.5
TWM5
0.98 / 25
0.35 / 9
TWM10
1.97 / 50
0.35 / 9
h ow to o r d e r
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
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected]
5
TWM10J– 10
750
820
1000
1500
2000
2700
3000
3300
3900
4300
4700
5600
6800
7500
8200
10000
3
Ohmic value
5
TWM10J– 10
3
99


 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Part No.
Prefix 
Suffix
––– 750E
––– 820E
––– 1K0
––– 1K5
––– 2K0
––– 2K7
––– 3K0
––– 3K3
––– 3K9
––– 4K3
––– 4K7
––– 5K6
––– 6K8
––– 7K5
––– 8K2
––– 10K
TWM5J–
43
47
56
68
75
82
100
150
200
270
300
330
390
430
470
560
680
TWM5J–
TWW5J–
Ohmic value
5
3
TWW10J– 10
Part No.
Prefix 
Suffix
––– 43RE
––– 47RE
––– 56RE
––– 68RE
––– 75RE
––– 82RE
––– 100E
––– 150E
––– 200E
––– 270E
––– 300E
––– 330E
––– 390E
––– 430E
––– 470E
––– 560E
––– 680E
Wattage
TWM3J–
39
43
47
56
68
75
82
100
150
200
270
300
330
390
430
470
560
680
750
820
TWW3J–



















Ohmic value


















5
TWW10J– 10


















3
TWW5J–
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
TWW3J–
Ohmic value
5
TWW10J– 10
TWW5J–
3
TWW3J–
















Part No.
Prefix 
Suffix
–––39RE   
–––43RE  
–––47RE  
–––56RE 
–––68RE 
–––75RE 
–––82RE 
–––100E 
–––150E 
–––200E 
–––270E 
–––300E 
–––330E 
–––390E 
–––430E 
–––470E 
–––560E 
–––680E 
–––750E 
–––820E 




















Wattage




















Part No.
Prefix 
Suffix
–––1R5E
–––2R0E
–––2R7E
–––3R0E
–––3R3E
–––3R9E
–––4R3E
–––4R7E
–––5R6E
–––6R8E
–––7R5E
–––8R2E
–––10RE
–––15RE
–––20RE
–––22RE
–––27RE
–––30RE
–––33RE
Standard part numbers for TWM series
Wattage


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
Wattage

Ohmic value
Wattage
TWM3J–
Standard part numbers for TWW series













































