RW
resistors
coat insulated miniature precision
power wirewound resistors
NEW
features
•
Resistors meeting MIL-R-26E (U and
V characteristics) and surface temperature
(hot spot) 350°C max.
•
Resistors with a wide range of 0.1Ω ~ 62kΩ,
covering applications from precision to power
•
RW N type resistors are non-inductive wound
and can be used in high frequency applications.
•
Marking: Black body color with alpha-numeric marking
•
Products with lead-free terminations meet
RoHS requirements. Pb located in glass material,
electrode and resistor element is exempt per Annex 1,
exemption 5 of EU directive 2005/95/EC
dimensions and construction
l
D
L
Ceramic Core
l
t
d
Type
RW1/2, RW1/2N
RW1, RW1N
RW2, RW1N
L
.315±.039
(8.0±1.0)
Dimensions
inches
(mm)
D
d (nom.)
.138
+.039
-0
(1.6
+1.0
)
-0
.020
(0.5)
.031
(0.8)
l
.413±.039 .106±.039
(10.5±1.0) (2.7±1.0)
.512±.039 .205±.039
(13.0±1.0) (5.2±1.0)
.650±.039 .252±.039
(16.5±1.0) (6.4±1.0)
.866±.039
(22±1.0)
.307±.059
1.24±.039
(7.8±1.5)
(31.5±1.0)
1.81±.059 .366±.089
(46.0±1.5) (9.3±1.5)
Insulation
Coating
Resistive
Wire
Electrode Lead
Cap
Wire
RW3, RW3N
RW5, RW5N
RW7, RW7N
RW10, RW10N
1.50±.118
(38.0±3.0)
.039
(1.0)
ordering information
Pb Free
Type
RW
Type
1/2
Power
Rating
1/2: 0.5W
1: 1W
2: 2W
3: 3W
5: 5W
7: 7W
10: 10W
N
Winding
Method
Nil: Standard
winding
N: Non-inductive
winding
T
Termination
Material
T: Sn
103
Nominal
Resistance
±3%, ±5%: 2 significant
figures + 1 multiplier
“R” indicates decimal
on value <10Ω
±0.5%, ±1%:
3 significant figures
+ 1 multiplier “R”
indicates decimal
on value <100Ω
J
Tolerance
D: ±0.5%
F: ±1%
H: ±3%
J: ±5%
For further information
on packaging, please
refer to Appendix C.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
2/19/07
126
KOA Speer Electronics, Inc.
• Bolivar Drive • P Box 547 • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
.O.
RW
coat insulated miniature precision
power wirewound resistors
applications and ratings
Part
Designation
RW1/2
RW1/2N
RW1
RW1N
RW2
RW2N
RW3
RW3N
RW5
RW5N
RW7
RW7N
RW10
RW10N
Power Rating
U
0.5W
1.0W
2.0W
3.0W
5.0W
V
1.0W
2.0W
3.0W
5.0W
7.0W
D±0.5%
(E96)
10 - 2.61k
—
1 - 5.11k
—
1 - 10k
—
1 - 15k
—
1 - 30.1k
—
1 - 45.3k
—
1 - 60.4
—
Resistance Range (Ω)
F±1%
(E96)
10 - 2.61k
10 - 2.37k
1 - 5.11k
10 - 3.74k
1 - 10k
15 - 10k
1 - 15k
15 - 15k
1 - 30.1k
20 - 29.4k
1 - 45.3k
36 - 44.2k
1 - 60.4k
62 - 49.9k
H±3%
(E24)
0.47 - 2.7k
10 - 2.4k
0.1 - 5.1k
10 - 3.6k
0.1 - 10k
10 - 10k
0.1 - 15k
15 - 15k
0.1 - 30k
20 - 30k
0.1 - 47k
36 - 43k
0.1 - 62k
62 - 51k
J±5%
(E24)
0.47 - 2.7k
10 - 2.4k
0.1 - 5.1k
10 - 3.6k
0.1 - 10k
10 - 10k
0.1 - 15k
15 - 15k
0.1 - 30k
20 - 30k
0.1 - 47k
36 - 43k
0.1 - 62k
62 - 51k
±20:R≥10Ω
±50:1Ω≤R
<10Ω
±90:R<1Ω
400V
700V
T.C.R.
(ppm/°C)
Max.
Working
Voltage
80V
130V
140V
200V
Max.
Overload
Voltage
150V
300V
resistors
500V
600V
7.0W
10W
10W
14W
600V
1000V
800V
1500V
environmental applications
Derating Curve
100
Surface Temperature Rise
350
Temperature Rise (°C)
Frequency Characteristics
1000
RW1
RW1/2, RW1, RW3, RW5
RW7, RW10
RW2
Resistance (Ω)
% Rated Power
80
60
40
20
0
-100
-50
-55
0
25
Ambient Temperature
(°C)
50
100
150
200
250 300
275
350
300
250
200
150
100
50
0
200
800
U
V
600
RW1N
400
RW1
0
40
80
120
160
200
0
1
10
100
1k
10k
100k
1M
10M
% Rated Power
RW1N
RW1
RW1N
100M
Frequency (Hz)
Performance Characteristics
Parameter
Resistance
T.C.R.
Overload (Short time)
Resistance to Solder Heat
Moisture Resistance
Endurance @ 25°C
Requirement
Δ
R ±(% + 0.05Ω)
Within regulated tolerance
Within specified T.C.R.
0.2: U
2: V
0.1
0.2: U
2: V
0.5: U
3: V
0.2: U
2: V
25°C
U: +25°C/-55°C, +25°C/+125°C and +25°C/+275°C
V: +25°C/-55°C, +25°C/+125°C and +25°C/+350°C
Rated power x 5 or Max. overload voltage, whichever is lower for 5 seconds
Rated power x 10 or Max. overload voltage, whichever is lower for 5 seconds
350°C ± 10°C, 3 seconds ± 0.5 seconds or 260°C ± 5°C,
10 seconds ± 1 second
Power rating x 1/10, 40°C, 90 - 95% RH, 1000 hours,
1.5 hr ON/0.5 hr OFF cycle
25°C, 2000 hours
1.5 hr ON/0.5 hr OFF cycle
275
+5
°C, 250 hours
-0
350
+5
°C, 250 hours
-0
4/20/05
Test Method
High Temperature Exposure
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
KOA Speer Electronics, Inc.
• Bolivar Drive • P Box 547 • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
.O.
127
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