RWS
Precision Power Wirewound
SMD Resistor
A compact and precision power resistor, manufactured to the highest
standards; reliable and robust but still achieving drift of less than 1%
and TCR of 10-90ppm/˚C when under rated conditions
•
High overload capability for surge and pulse applications
•
Precision High Power wirewound Resistor
•
Low inductance available
•
RoHS Compliant
Electrical Specifications
Type
RWS05
RWS1
RWS2
RWS3
RWS5
Wattage
0.5
1
2
3
5
D (0.5%)
F (1%)
J (5%)
Tolerance
Resistance Range
Min
R005
R005
R005
R01
R05
Max
1K2
5K
12K
20K
50K
Resistance Range - Non-inductive
Min
R1
R1
R1
R1
R1
Max
200R
1K
2K4
4K
10K
Characteristics
Tolerance (Code):
Operating temperature:
Temperature coefficient:
Max. working voltage:
Short time overload
Solderability
Resistance to solder heat
Dielectric withstanding voltage
Load life
± 0.5% (D),± 1% (F), ± 5% (J)
-55°C to +155°C
± 90ppm/°C R1 - R99, ± 50ppm/°C 1R - 10R, ± 20ppm/°C > 10R
(PxR)
1/2
5 times rated wattage for 5 seconds
±(1.0% + 0.05Ω)∆R
Bath temperature 235±5˚C, immersion time 2±0.5 seconds JIS C 5201 4.17
>95% of contact face covered new solder
Bath temperature 260±5˚C, immersion time 10±1 seconds JIS C 5201 4.18
±(0.5% + 0.05Ω)∆R
Test voltage >500V, duration 1 minute JIS C 5201 4.7
70˚C ±2˚C, rated DC working voltage applied 1.5 hours on and 0.5 hours off, 1000 hours,
±(2.0% + 0.05Ω)∆R
ARCOL UK Limited,
Threemilestone Ind. Estate,
Truro, Cornwall, TR4 9LG, UK.
T +44 (0) 1872 277431
F +44 (0) 1872 222002
E sales@arcolresistors.com
The information contained herein does not form part of a
contract and is subject to change without notice. ARCOL
operate a policy of continual product development, therefore,
specifications may change.
It is the responsibility of the customer to ensure that the
component selected from our range is suitable for the intended
application. If in doubt please ask ARCOL.
Page 1 of 2
3 / 17.8
www.arcolresistors.com
RWS
SMD Precision Power
Wirewound Resistor
Temperature Rise
RWS-3
125
Derating Curve
RWS-5
125
100
RWS-1
Rated Power (%)
100
Temperature (°
C)
80
60
40
20
0
0
RWS-05
RWS-2
80
60
40
20
0
0
-55
75
100
125
150
175
1/2W
1W
2W
Power (Watt)
3W
5W
Temperature (°C)
Dimensions (in mm
±0.5)
DIMENSIONS
Type
L
1
L
2
1.28
1.75
2.00
2.50
3.00
Model
H
1
3.25
4.64
4.65
5.65
7
.87
W
1
2.54
3.50
4.50
5.50
W
2
1.663
2.405
3.59
4.20
RWS05 5.08
RWS1
RWS2
RWS3
RWS5
7
.50
11.00
13.50
20.30
RWIS2010
RWIS3014
RWIS4318
RWIS5322
RWIS8030
Dimensions inches / millimeters +-inches
7
.62
4.90
DIMENSIONS
L1
±0.020
L2
±0.020
L3
±0.020
H1
±0.020
Recommended Solder
W1
±0.020
Pad
0.200/05.08 0.050/1.28
0.099/2.52
Dimensions
0.128/3.25
0.100/2.54
0.300/07.50
0.430/11.00
0.530/13.50
0.800/20.30
0.069/1.75
0.079/2.00
0.098/2.50
0.118/3.00
Dimensions
0.157/4.00
Type
0.216/7.00
RWS05
0.256/8.50
RWS1
0.484/12.3
0.138/3.50
L
0.183/4.64
W
3
4
0.189/4.65
0.177/4.50
2.0
2.2
0.229/5.65
0.217/5.50
2.5
0.310/7.87
3.0
0.300/7.62
Solder Pad Dimensions
W2
±0.020
0.065/1.663
0.095/2.405
0.134/3.590
0.165/4.200
0.193/4.900
L1
L4
±0.020
0.078/1.98
0.096/2.45
0.108/2.75
0.126/3.20
0.146/3.70
W3
±0.020
0.085/2.16
0.116/2.95
0.146/3.70
0.165/4.20
0.200/5.10
Model
RWIS2010
RWIS3014
RWIS4318
RWIS5322
RWIS8030
TEMPERATURE RISE
( In
⁰
C
)
L1
±0.020
0.200/05.08
0.300/07.50
0.430/11.00
0.530/13.50
0.800/20.30
L2
±0.020
0.050/1.28
0.069/1.75
0.079/2.00
0.098/2.50
0.118/3.00
0.099/2.52
0.157/4.00
0.216/7.00
0.256/8.50
0.484/12.3
L3
±0.020
RWS5
RWS2
2.8
4.2
DERATING
( Rated Power In % )
inches / millimeters +-inches
Solder Pad Dimensions
RWS3
3.5
4.8
Ordering Procedure
Packaging (Tape & Reel or Bulk)
0.128/3.25
0.183/4.64
0.189/4.65
0.229/5.65
0.310/7.87
H1
±0.020
4.0
W1
±0.020
5.5
0.100/2.54
0.138/3.50
0.177/4.50
0.217/5.50
0.300/7.62
W2
±0.020
0.065/1.663
0.095/2.405
0.134/3.590
0.165/4.200
0.193/4.900
L4
±0.020
0.078/1.98
0.096/2.45
0.108/2.75
0.126/3.20
0.146/3.70
W3
±0.020
0.085/2.16
0.116/2.95
0.146/3.70
0.165/4.20
0.200/5.10
Standard Resistor: Series, Resistance Value, Tolerance,
e.g. RWS1 / NRWS1 (non-inductive) R005 F TR
TEMPERATURE RISE
( In
⁰
C
)
DERATING
( Rated Power In % )
ARCOL UK Limited,
Threemilestone Ind. Estate,
Truro, Cornwall, TR4 9LG, UK.
T +44 (0) 1872 277431
F +44 (0) 1872 222002
E sales@arcolresistors.com
www.arcolresistors.com
Conditions Of Test
Test Results
contract and is subject to change without notice. ARCOL
-55
policy of continual
⁰
C
+3
⁰
C,-0
⁰
C, 100 cycles,
±(1.0%
operate a
⁰
C
+0
⁰
C,-3
⁰
C
to 150
product development, therefore,
+ 0.5m )
△
R
Minimum 15 minute at
each extremes
specifications may change.
Short Time Overload
Overload voltage : 5 Times rated wattage for 5 ±(0.5% + 0.5m )
△
R
seconds
It is the responsibility of the customer to ensure that the
Solderability
Bath Temperature 235±5℃, Immersion Time
>95% of contact face
component selected from our range is suitable for the intended
2±0.5seconds JIS C 5201 4.17
covered new solder
application. If in doubt please ask ARCOL.
Resistance To Solder Heat Bath
±(0.5% + 0.5m )
△
R
PERFORMANCE CHARACTERISTICS
Temperature 260±5℃, Immersion Time
10±1 seconds JIS C 5201 4.18
Parameter
Page 2 of 2
Conditions Of Test
Test Results
Dielectric Withstanding
Magnitude of test voltage : > 500 volts.
Pass
3/ 17.8
Thermo Shock
-55
⁰
C
+0
⁰
C,-3
⁰
C
to 150
⁰
C
+3
⁰
C,-0
⁰
C, 100 cycles,
±(1.0% + 0.5m )
△
R
Voltage
Duration 1 minute JIS C 5201 4.7
Minimum 15 minute at
each extremes
PERFORMANCE CHARACTERISTICS
The information contained herein does not form part of a
Parameter
Thermo Shock
Test/Measurement
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