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
•
CW1SS has UL1412 approval (File No. E320246)
•
Surface mount style “N” forming is suitable for automatic
mounting CW, CWP
dimensions and construction
D
t
L
Ceramic Core
t
l
d
CW1/4
Type
L
Dimensions
inches
(mm)
t (max.)
D
d (nom.)
.02
(0.5)
.075±.012
(1.9±0.3)
.018
(0.45)
.024
(0.6)
.039
(1.0)
.098±.039
(2.5±1.0)
.138±.039
(3.5±1.0)
.374±.039
(9.5±1.0)
.138
+.006
-0
(3.5
+1.5
)
-0
.138±.039
(3.5±1.0)
.157±.039
(4.0±1.0)
.472±.039
(12.0±1.0)
.118
(3.0)
.157
+.006
-0
(4.0
+1.5
)
-0
.157±.039
(4.0±1.0)
.236±.039
(6.0±1.0)
.591±.039
(15.0±1.0)
.236
+.006
-0
(6.0
+1.5
)
-0
.236±.039
(6.0±1.0)
.945±.006
(24.0±1.5)
.256±.039
(6.5±1.0)
.354±.039
(9.0±1.0)
.472±.039
(12.0±1.0)
.591±.039
(15.0±1.0)
.118
(3.0)
.039
(1.0)
.354±.006
(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)
l*
CW1/2
CW1
CW1X
.13±.012
(3.3±0.3)
.256±.039
(6.5±1.0)
Marking
Resistive
Wire
End
Cap
Lead
Wire
Insulation Coating
CW2
CW1P
CW2X
CW2P
CW3
CW5
CW3P
CW3X
CW1S
CW3H
CW2H
CW1H
CW1SS
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
* Lead length changes depending on taping and forming type.
11/20/14
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
157
resistors
CW
,
CWP
,
CWH
CW
,
CWP
,
CWH
coat insulated, precision coat insulated
and miniature wirewound leaded resistors
ordering information
New Part #
Type
CW
Power
Rating
1/4: 0.25W
1/2: 0.5W
1: 1W
2: 2W
3: 3W
5: 5W
1/2
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
Style
H: Stability
Nil: Power
P: Precision
S: Small
X: Power
SS: Small type,
UL Approved
P
Termination
Material
C: SnCu
C
For further information
on packaging, please
refer to Appendix C.
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,
N20
T52
Packaging
A: Ammo
R: Reel
TEB:
Embossed
plastic
(N forming)
A
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
103
Tolerance
C: ±0.25%
D: ±0.5%
F: ±1%
G: ±2%
J: ±5%
K: ±10%
F
applications and ratings
Part
Designation
CW1/2
CW1/4
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.
E-24, E-96
(C±0.25%)
E-24, E-96
(D±0.5%)
E-24, E-96
(F±1%)
Resistance Range (Ω)
E-24
(G±2%)
—
0.1 - 390
0.1 - 390
0.1 - 390
0.1 - 390
E-24
(J±5%)
E-24
(K±10%)
Rated
Operating
Ambient Temperature
Temperature
Range
0.47 - 15
0.1 - 100
0.1 - 390
0.1 - 390
0.1 - 390
0.1 - 390
0.47 - 15
0.1 - 100
CW5
CW3
CW2
CW1
—
+70°C
-40°C
to
+155°C
CW1S
CW3X
CW2X
CW1X
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
—
CW1SS
CW1P
CW3P
CW2P
CW3H
CW2H
CW1H
* T.C.R. = 20ppm/°C available on request CW_H: Max. Working Voltage: E=
√(PxR)
CW_H: Max. Overload Voltage: E=
√(PxRx5)
environmental applications
CW
100
80
60
40
20
0
-40
0
25
40
160 200
155
Ambient Temperature
(°C)
80
120
240
280
275
Derating Curve
100
80
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.
158
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
12/27/13
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
Resistance
T.C.R.
Parameter
Within regulated tolerance
Within specified T.C.R.
Requirement
∆
R ±(% + 0.05Ω)
Limit
Typical
—
—
25°C
Test Method
CW: Room temperature/100°C up
CWP: +25°C/-40°C and +25°C/+155°C
CWH: +25°C/-55°C and +25°C/+125°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
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, power rating, 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.
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
11/20/14
159
resistors
CW
,
CWP
,
CWH
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