coat insulated, precision coat insulated
and miniature wirewound leaded resistors
features
EU
•
Flameproof silicone coating
equivalent (UL94V0)
•
CWH resistors meet MIL-PRF-26 (U characteristics)
•
CWH high precision resistors with T.C.R. less than ±50x10
-6
/K
•
Suitable for automatic machine insertion
•
Various types of formings are available
•
Excellent in pulse characteristic
•
Marking: Blue body color: CW, CW_X, CW_P
Black body color: CW1S, CW1SSCT52A100J, CWH
Color-code: CW, CW_X, CW1SSCT52A100J
(two silver lines)
Alpha-numeric: CW_P, CW1S, CWH
•
Products with lead-free terminations meet EU RoHS
and China RoHS requirements
•
CW1SSCT52A100J has UL1412 approval
•
Surface mount style “N” forming is suitable for automatic
mounting CW, CWP
dimensions and construction
t
D
L
Ceramic Core
l
t
d
Type
CW1/4
CW1/2
CW1
Marking
Resistive
Wire
End
Cap
Lead
Wire
CW1X
CW1P
CW2
CW2X
CW2P
CW3
CW3X
CW3P
CW5
CW1S
CW1SS
CW1H
CW2H
CW3H
.945±.059
(24.0±1.5)
.256±.039
(6.5±1.0)
.374±.039
(9.5±1.0)
.472±.039
(12.0±1.0)
.591±.039
(15.0±1.0)
.118
(3.0)
.039
(1.0)
.591±.039
(15.0±1.0)
.472±.039
(12.0±1.0)
.374±.039
(9.5±1.0)
L
.13±.012
(3.3±0.3)
.256±.039
(6.5±1.0)
Dimensions
inches
(mm)
t (max.)
D
d (nom.)
.02
(0.5)
.039
(1.0)
.075±.012
(1.9±0.3)
.098±.039
(2.5±1.0)
.138±.039
(3.5±1.0)
.138
+.039
-0
(3.5
+1.5
)
-0
.138±.039
(3.5±1.0)
.157±.039
(4.0±1.0)
.118
(3.0)
.157
+.039
-0
(4.0
+1.5
)
-0
.157±.039
(4.0±1.0)
.236±.039
(6.0±1.0)
.236
+.039
-0
(6.0
+1.5
)
-0
.236±.039
(6.0±1.0)
.354±.039
(9.0±1.5)
.098±.039
(2.5±1.0)
.138±.039
(3.5±1.0)
.157±.039
(4.0±1.0)
.236±.039
(6.0±1.0)
.031
(0.8)
1.18±.118
(30.0±3.0)
.024
(0.6)
1.50±.118
(38.0±3.0)
1.18±.118
(30.0±3.0)
.031
(0.8)
1.18±.118
(30.0±3.0)
.018
(0.45)
.024
(0.6)
l*
Insulation Coating
* Lead length changes depending on taping and forming type.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
12/18/12
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
141
resistors
CW
,
CWP
,
CWH
CW
,
CWP
,
CWH
coat insulated, precision coat insulated
and miniature wirewound leaded resistors
ordering information
New Part #
CW
Type
1/2
Power
Rating
1/4: 0.25W
1/2: 0.5W
1: 1W
2: 2W
3: 3W
5: 5W
P
Style
H: Stability
Nil: Power
P: Precision
S: Small
X: Power
SS: Small type,
UL Approved
C
Termination
Material
C: SnCu
T52
Taping and
Forming
Axial: T26, T52,
T521, T631
Stand-off Axial:
L52A, L52B
Radial: VTP, GT
L forming:
L12.5A, L15A,
L20A, L25A
N forming: N17
A
Packaging
A: Ammo
R: Reel
TEB:
Embossed
plastic
(N forming)
103
Nominal
Resistance
±2%, ±5%: 2 significant
figures + 1 multiplier
“R” indicates decimal
on value <10Ω
±1%: 3 significant
figures + 1 multiplier
“R” indicates decimal
on value <100Ω
F
Tolerance
C: ±0.25%
D: ±0.5%
F: ±1%
G: ±2%
J: ±5%
K: ±10%
60
40
20
0
-40
0
40
80
120
160 200
70
155
Ambient Temperature
(°C)
240
280
275
% Rated Power
% Rated Power
% Rated Power
resistors
For further information
on packaging, please
refer to Appendix C.
applications and ratings
Part
Designation
CW1/4
CW1/2
CW1
CW2
CW3
CW5
CW1X
CW2X
CW3X
CW1S
CW1SS
CW1P
CW2P
CW3P
CW1H
CW2H
CW3H
Power
Rating
0.25W
0.5W
1.0W
2.0W
3.0W
5.0W
1.0W
2.0W
3.0W
1.0W
1.0W
1.0W
2.0W
3.0W
1.0W
2.0W
3.0W
±20: R≥10Ω
±50: R<10Ω
—
±250
±100
±90:
R≥10Ω*
±50: R<10Ω
—
—
1 - 100
1 - 390
1 - 390
—
—
0.47 - 220
0.47 - 390
0.47 - 390
0.47 - 220
0.47 - 750
0.47 - 1k
—
—
0.1 - 430
0.1 - 390
0.1 - 390
0.1 - 430
0.1 - 2k
0.1 - 3k
—
—
—
+25°C
-55°C
to
+275°C
—
—
—
+25°C
—
—
±500
—
—
—
—
±250
—
—
—
T.C.R.
(ppm/°C)
Max.
Resistance Range (Ω)
E-24, E-96
(C±0.25%)
E-24, E-96
(D±0.5%)
E-24, E-96
(F±1%)
E-24
(G±2%)
—
0.1 - 390
0.1 - 390
0.1 - 390
0.1 - 390
E-24
(J±5%)
0.47 - 15
0.1 - 100
0.1 - 390
0.1 - 390
0.1 - 390
0.1 - 390
0.01 - 0.091 0.01 - 0.091
0.01 - 0.091 0.01 - 0.091
0.01 - 0.091 0.01 - 0.091
0.1 - 100
10
0.1 - 100
—
—
+70°C
-40°C
to
+155°C
E-24
(K±10%)
0.47 - 15
0.1 - 100
Rated
Operating
Ambient Temperature
Temperature
Range
* T.C.R. = 20ppm/°C available on request
environmental applications
Derating Curve
CW
100
80
100
80
60
40
20
0
-40
0
25
40
160 200
155
Ambient Temperature
(°C)
80
120
240
280
275
CWP
100
80
60
40
20
0
-100
-50
-55
0
CWH
150 200
50
100
-25
155
Ambient Temperature
(°C)
250
300
275
For resistors operated at an ambient temperature of 25°C or above, a power rating shall be derated in accordance with the above derating curve.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
1/05/13
142
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
coat insulated, precision coat insulated
and miniature wirewound leaded resistors
environmental applications
Surface Temperature Rise
300
Temperature Rise (°C)
250
200
150
100
50
0
0
25
50
75
100
CW5
CW3, CW3P
CW2, CW2P
CW1S, CW1SS
CW1, CW1P
CW1/2
CW1/4
Fixing board: t=1.2
Material: Glass epoxy board
% Rated Power
Performance Characteristics
Parameter
Resistance
T.C.R.
Requirement
∆
R ±(% + 0.05Ω)
Limit
Typical
Within regulated tolerance
Within specified T.C.R.
—
—
25°C
CW: Room temperature/100°C up
CWP: +25°C/-40°C and +25°C/+155°C
CWH: +25°C/-55°C and +25°C/+155°C
CW,CWX,CW1S,CW1SS: Power rating x 10 for 5 seconds
CWP: Power rating x 6.25 for 5 seconds
CWP (R<10Ω), CWH: Power rating x 5 for 5 seconds
350°C ± 10°C for 3.5 seconds or 260°C ± 5°C
for 10 seconds
Power rating x 1/10, 40°C, 90 - 95% RH, 1000 hours,
1.5 hr ON, 0.5 hr OFF cycle
70°C, 1000 hours (CW, CWX, CW1S, CW1SS),
25°C, 1000 hours (CWP)
1.5 hr ON, 0.5 hr OFF cycle
After immersing the sample in IPA for 3 min., the resistor
surface should be wiped with a dry cloth (velvet or gauze)
-65°C, 24 hours
Test Method
Overload (Short Time)
Resistance to Solder Heat
Moisture Resistance
Endurance @ 70°C
0.8%: CW, CWX 0.4: CWP
1%: CW, CWX 0.5%: CWP
1.8%: CW1S, CW1SS
2%: CW1S, CW1SS
0.18%:CWP(R<10Ω)
0.2%: CWP(R<10Ω)*, CWH
0.15%: CWH
0.8%: CW,CW1S,CW1SS,CWX
1%: CW,CW1S,CW1SS,CWX
0.4%: CWP
0.5%: CWP
0.18%: CWP (R<10Ω)
0.2%: CWP (R<10Ω)*, CWH
0.15%: CWH
5%: CW, CW1S, CWX
4%: CW, CW1S, CWX
2%: CWP
1.6%: CWP
0.5%: CWP (R<10Ω)*
0.45%: CWP (R<10Ω)
5%: CW,CW1S,CW1SS,CWX 4%: CW,CW1S,CW1SS,CWX
2%: CWP
1.6%: CWP
0.5%: CWP (R<10Ω)*
0.45%: CWP (R<10Ω)
Resistance to Solvent
No evidence of damage to
protective coating and marking
0.2%: CWH
—
0.15%: CWH
Low Temperature
High Temperature
0.5%: CWH
0.45%: CWH
+275°C, 250 hours
Thunder Surge
3%: CW1SS
—
Combination wave, +1.5kV 20 seconds 3 cycles
Load Life
* Refer to MIL-PRF-26G standard
0.5%: CWH
0.45%: CWH
-25°C, rated power, 1.5 hr ON, 0.5 hr OFF 2000 hours
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
12/18/12
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
143
resistors
CW
,
CWP
,
CWH
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