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
•
Low inductance available
•
Custom specification 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
1K
5K8
14K
25K
50K
Resistance Range - Non-inductive
Min
R1
R1
R1
R1
R1
Max
200R
1K2
2K8
5K
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
±(0.5% + 0.05mΩ)∆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% + 0.05mΩ)∆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% +
0.05mΩ)∆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
1 / 11.46
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)
Type
L
1
L
2
1.28
1.75
2.00
2.50
3.00
Model
L
3
2.52
4.00
7
.00
8.50
12.30
H
1
3.25
4.64
4.65
5.65
7
.87
W
2
RWS05 5.08
RWS1
RWS2
RWS3
RWS5
7
.50
11.00
13.50
20.30
DIMENSIONS
1.663
2.405
3.59
4.20
4.90
Dimensions
inches / millimeters +-inches
H1
±0.020
0.128/3.25
0.183/4.64
0.189/4.65
0.229/5.65
0.310/7.87
W1
±0.020
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
Solder Pad Dimensions
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
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
L3
±0.020
0.099/2.52
0.157/4.00
0.216/7.00
0.256/8.50
0.484/12.3
Solder Pad Dimensions
RWIS2010
Type
RWS05
RWS1
RWS2
RWS3
RWS5
RWIS3014
W
3
RWIS4318
1.98
RWIS5322
2.16
2.45
RWIS8030
2.95
L
4
2.75
3.20
3.70
3.70
4.20
5.10
TEMPERATURE RISE
( In
⁰
C
)
DERATING
( Rated Power In % )
Ordering Procedure
Standard Resistor: Series, Resistance Value, Tolerance,
Packaging (T&R or Bulk)
e.g. RWS1 / NRWS1 (non-inductive) R005 F T&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
PERFORMANCE CHARACTERISTICS
contained herein does not form part of
Parameter
Thermo Shock
www.arcolresistors.com
Test Results
operate a
C
+0
⁰
C,-3
⁰
continual
C
+3
⁰
C,-0
⁰
C, 100 cycles,
therefore,
+ 0.5m )
△
R
-55
⁰
policy of
C
to 150
⁰
product development,
±(1.0%
Minimum 15 minute at
specifications may change.
each extremes
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
component selected from our range is suitable for the
>95% of contact face
intended
2±0.5seconds JIS C 5201 4.17
covered new solder
application. If in doubt please ask Arcol.
Resistance To Solder Heat Bath Temperature 260±5℃, Immersion Time
±(0.5% + 0.5m )
△
R
1 / 11.46
Page 2 of 2
10±1 seconds JIS C 5201 4.18
Dielectric Withstanding
Magnitude of test voltage : > 500 volts.
Pass
Voltage
Duration 1 minute JIS C 5201 4.7
a contract and is subject to change without notice. Arcol
Conditions Of Test
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