SILICONE COATED WIRE WOUND RESISTORS
INDUSTRIAL / PROFESSIONAL APPLICATION
Hi Power Silicone Coated
Highly stable
10 W to 400 W
R 25 to 100 K
Useful for inexpensively dissipating large amounts of power in DC or
low frequency AC circuits
APPLICABLE STANDARDS -
JSS - 50402 (Pattern RFHT -2), IS - 8909 (Type FRP4), IEC - Pub 266 and Pub 266A [Type -
2E] MIL - R 26, Char, V or Char U (depending on resistance tolerance)
Physical configuration
HTR TYPE
POWER RATING at 70°C
DIMENSIONS (mm)
MOUNTING HARDWARE AVAILABLE
RESISTANCE RANGE
L
±3
D
±1
d
±1
H
±3.0
W
±0.3
øid ±0.1
MIN
MAX
R-10
10 W
27.0
15.0
7.7
17.0
4.4
1.6
101/301
R25
1K0
R-15
15 W
40.0
15.0
7.7
17.0
4.4
1.6
101/301
1R0
3K0
R-20
20 W
60.0
15.0
7.7
17.5
5.0
2.2
101/301
1R6
5K0
R-25
25 W
75.0
15.0
7.7
17.5
5.0
2.2
101/301
2R0
10K
R-40
40 W
75.0
26.0
14.3
23.0
5.0
2.2
102/303
3R9
15K
R-50
50W
100.0
26.0
14.3
23.0
5.0
2.2
102/303
5R5
20K
R-60
60 W
115.0
26.0
14.3
27.0
7.1
3.6
102/303
6R1
25K
R-80
80 W
130.0
26.0
14.3
27.0
7.1
3.6
102/303
6R8
35K
R-100
100 W
150.0
33.2
19.1
30.6
7.1
3.6
103/303
11R
40K
R-120
120W
165.0
33.2
19.1
30.6
7.1
3.6
103/303
12R
47K
R-140
140W
200.0
33.2
19.1
30.6
7.1
3.6
103/303
15R
56K
R-200
200W
250.0
33.2
19.1
30.6
7.1
3.6
103/303
20R
68K
R-300
300 W
250.0
45.0
24.0
42.5
10.2
6.0
26R
75K
R-400
400 W
330.0
45.0
24.0
42.5
10.2
6.0
36R
100K
MOUNTING SPECIFICATIONS
Bracket
type
X
Y
Z
H
Mounting
slot
C
B
101
26.9
12.7
21.83
25.4
5.5 x 11.11
19.05
34.92
102
26.9
19.5
21.83
31.75
5.5 x 11.11
19.05
44.45
103
26.9
32.0
25.40
38.10
7.1 x 14.30
22.22
53.98
Bracket
Type
X
(Approximate)
301
11.11
303
6.35
Electrical and Environmental Characterstics / Data
Test
Performance
Requirements
Resistance tolerance
± 5% [J] and ± 2%[G] [Char U only ]
± 10% [K] [<1ohms]
Rated ambient temperature [
see derating curve]
at 70°C full power
dissipation
Di-electric withstanding
voltage
Max. D R ± [1%+0.05ohms]
Insulation resistance
>1000 M
Temperature co-efficient
± 100 ppm/ °C [ For low values, TCR will
be higher ]
Short time overload
Max D R ±[ 2%+0.05ohms]
Moisture Resistance
Max D R ± [5%+0.05ohms]
Load life
Max D R ± [5%+0.05ohms]
NOTE
Resistance values below and above the shown resistance range are
possible on request.
Non-inductive types in this series are possible.
Dimensions given are to be used as a guide only, they can be varied
to a certain extent due to technical reasons. For example, larger terminals may be used
for very low values.
