CW
Vishay Dale
Wirewound Resistors, Commercial Coated, Axial Lead
FEATURES
•
High performance for low cost
•
High temperature silicone coating
•
Complete welded construction
•
Excellent stability in operation
•
High power to size ratio
Pb-free
Available
e3
RoHS*
COMPLIANT
STANDARD ELECTRICAL SPECIFICATIONS
POWER RATING
(1)
P
25 °C
W
RESISTANCE RANGE
Ω
GLOBAL
HISTORICAL
± 5 %, ± 10 %
(2)
MODEL
MODEL
Characteristic U + 250 °C Characteristic V + 350 °C
CW1/2
CW-1/2
0.5
-
0.1 - 1.77K
CW001
CW-1
1.0
-
0.1 - 6.37K
CW01M
CW-1M
1.0
-
0.1 - 3.3K
CW002
CW-2
4.0
5.5
0.1 - 28.7K
CW02M
CW-2M
3.0
3.75
0.1 - 12K
CW02B
CW-2B
3.0
3.75
0.1 - 15K
CW02B...13
CW-2B-13
4.0
6.0
0.1 - 10.89K
(3)
CW02C
CW-2C
2.5
3.25
0.1 - 19.9K
CW02C...14
CW-2C-14
2.5
3.25
0.1 - 19.9K
CW005
CW-5
5.0
6.5
0.1 - 58.5K
CW005...2
CW-5-2
4.0
5.0
0.1 - 40.3K
CW005...3
CW-5-3
5.0
6.5
0.1 - 58.5K
CW007
CW-7
7.0
9.0
0.1 - 95.2K
CW010
CW-10
10.0
13.0
0.1 - 167K
CW010...3
CW-10-3
10.0
13.0
0.1 - 167K
Notes
(1)
Vishay Dale CW models have two power ratings, depending on
(2)
3 % tolerance available
(3)
Higher values available on request
operating temperature and stability requirements
WEIGHT (Max.)
g
0.21
0.34
0.3
2.1
0.65
0.7
0.9
1.8
1.2
4.2
4.2
4.2
4.7
9.0
9.0
TECHNICAL SPECIFICATIONS
PARAMETER
UNIT
Temperature Coefficient
ppm/°C
Dielectric Withstanding Voltage
V
AC
Short Time Overload
Terminal Strength
Maximum Working Voltage
Operating Temperature Range
Power Rating
-
lb
V
°C
-
CW RESISTOR CHARACTERISTICS
± 90 for below 1.0
Ω,
± 50 for 1.0
Ω
to 9.9
Ω,
± 30 for 10
Ω
and above
1000
5 × rated power for 5 s for 3.75 W size and smaller,
10 × rated power for 5 s for 4 W size and greater
10 minimum
(P ×
R)
1/2
Characteristic U = - 65/+ 250, Characteristic V = - 65/+ 350
Characteristic U = + 250 °C max. hot spot temperature, ± 0.5 % max.
ΔR
in 2000 h load life
Characteristic V = + 350 °C max. hot spot temperature, ± 3.0 % max.
ΔR
in 2000 h load life
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: CW02C10K00JB1214 (preferred part number format)
C
W
0
2
C
1
0
K
0
0
J
B
1
2
1
4
GLOBAL MODEL
(See Standard Electrical
Specifications Global Model
column for options)
PACKAGING
SPECIAL
(Dash Number)
E70
= Lead (Pb)-free, tape/reel 1K pcs
(up to 3 digits)
E73
= Lead (Pb)-free, tape/reel 500 pcs
From
1 - 999
E12
= Lead (Pb)-free, bulk
as applicable
D18
= Lead (Pb)-free, R1R80 tape/reel
CW02B...13 pack code for Europe use only
S70
= Tin/lead, tape/reel 1K pcs
S73
= Tin/lead, tape/reel 500 pcs
B12
= Tin/lead, bulk
Historical Part Number example: CW-2C-14 10 kΩ 5 % B12 (will continue to be accepted for tin/lead product only)
CW-2C-14
10 kΩ
5%
B12
HISTORICAL MODEL
RESISTANCE VALUE
TOLERANCE CODE
PACKAGING
RES. VALUE
R
= Decimal
K
= Thousand
1R500
= 1.5
Ω
1K500
= 1.5 kΩ
TOL. CODE
H
= ± 3.0 %
J
= ± 5.0 %
K
= ± 10.0 %
* Pb containing terminations are not RoHS compliant, exemptions may apply
www.vishay.com
26
For technical questions, contact: ww2aresistors@vishay.com
Document Number: 30215
Revision: 10-Dec-07
CW
Wirewound Resistors, Commercial Coated, Axial Lead
Vishay Dale
DIMENSIONS
in inches [millimeters]
1.50 [38.10]
(1)
Minimum
A
C
B
D
MODEL
CW1/2
CW001
CW01M
CW002
CW02M
CW02B
CW02B...13
CW02C
CW02C...14
CW005
CW005...2
CW005...3
CW007
CW010
CW010...3
Notes
(1)
On some standard reel pack methods, the leads may be trimmed to a shorter length than shown.
(2)
B (Maximum) dimension is clean lead to clean lead.
RATED POWER IN
%
A
0.250 ± 0.031 [6.35 ± 0.787]
0.406 ± 0.031 [10.31 ± 0.787]
0.285 ± 0.025 [7.24 ± 0.635]
0.625 ± 0.062 [15.87 ± 1.57]
0.500 ± 0.062 [12.70 ± 1.57]
0.562 ± 0.062 [14.27 ± 1.57]
0.500 ± 0.062 [12.70 ± 1.57]
0.500 ± 0.062 [12.70 ± 1.57]
0.500 ± 0.062 [12.70 ± 1.57]
0.875 ± 0.062 [22.22 ± 1.57]
0.875 ± 0.062 [22.22 ± 1.57]
0.875 ± 0.062 [22.22 ± 1.57]
1.218 ± 0.062 [30.94 ± 1.57]
1.781 ± 0.062 [45.24 ± 1.57]
1.781 ± 0.062 [45.24 ± 1.57]
DIMENSIONS
in inches [millimeters]
C
B (Maximum)
(2)
0.281 [7.14]
0.085 ± 0.020 [2.16 ± 0.508]
0.437 [11.10]
0.094 ± 0.031 [2.39 ± 0.787]
0.311 [7.90]
0.110 ± 0.015 [2.79 ± 0.381]
0.765 [19.43]
0.250 ± 0.032 [6.35 ± 0.813]
0.562 [14.27]
0.185 ± 0.015 [4.70 ± 0.381]
0.622 [15.80]
0.188 ± 0.032 [4.78 ± 0.813]
0.563 [14.30]
0.188 ± 0.032 [4.78 ± 0.813]
0.593 [15.06]
0.218 ± 0.032 [5.54 ± 0.813]
0.593 [15.06]
0.218 ± 0.032 [5.54 ± 0.813]
1.0 [25.40]
0.312 ± 0.032 [7.92 ± 0.813]
1.0 [25.40]
0.250 ± 0.032 [6.35 ± 0.813]
1.0 [25.40]
0.312 ± 0.032 [7.92 ± 0.813]
1.281 [32.54]
0.312 ± 0.032 [7.92 ± 0.813]
1.875 [47.62]
0.375 ± 0.032 [9.52 ± 0.813]
1.875 [47.62]
0.375 ± 0.032 [9.52 ± 0.813]
D
0.020 ± 0.002 [0.508 ± 0.051]
0.020 ± 0.002 [0.508 ± 0.051]
0.020 ± 0.002 [0.508 ± 0.051]
0.040 ± 0.002 [1.02 ± 0.051]
0.032 ± 0.002 [0.813 ± 0.051]
0.032 ± 0.002 [0.813 ± 0.051]
0.032 ± 0.002 [0.813 ± 0.051]
0.040 ± 0.002 [1.02 ± 0.051]
0.032 ± 0.002 [0.813 ± 0.051]
0.040 ± 0.002 [1.02 ± 0.051]
0.032 ± 0.002 [0.813 ± 0.051]
0.032 ± 0.002 [0.813 ± 0.051]
0.040 ± 0.002 [1.02 ± 0.051]
0.040 ± 0.002 [1.02 ± 0.051]
0.032 ± 0.002 [0.813 ± 0.051]
MATERIAL SPECIFICATIONS
Element:
Copper-nickel alloy or nickel-chrome alloy,
depending on resistance value
Core:
Ceramic: Steatite or alumina, depending on physical
size
Coating:
Special high temperature silicone
Standard Terminals:
Tinned Copperweld
®
End Caps:
Stainless steel
Part Marking:
DALE, model, wattage
(3)
, value, tolerance,
date code
Note
(3)
Wattage marked on resistor will be “V” characteristic, CW1/2 will
not be marked with wattage
120
100
80
60
40
20
0
CHAR. U
CHAR. V
- 50
- 65
0
25
50
150
250
350
Derating
AMBIENT TEMPERATURE IN °C
PERFORMANCE
(4)
TEST
Thermal Shock
Short Time Overload
Dielectric Withstanding Voltage
Low Temperature Storage
High Temperature Exposure
Moisture Resistance
Shock, Specified Pulse
Vibration, High Frequency
Load Life
Terminal Strength
CONDITIONS OF TEST
Rated power applied until thermally stable, then a minimum of 15 min at - 55 °C
5 x rated power (3.75 W and smaller), 10 × rated power (4 W and larger) for 5 s
1000 V
rms
, 1 min
- 65 °C for 24 h
250 h at + 350 °C
MIL-STD-202 Method 106, 7b not applicable
MIL-STD-202 Method 213, 100 g’s for 6 ms, 10 shocks
Frequency varied 10 to 2000 Hz, 20 g peak, 2 directions 6 h each
2000 h at rated power, + 25 °C, 1.5 h “ON”, 0.5 h “OFF”
5 to 10 s 10 pound pull test; torsion test - 3 alternating directions, 360 °C each
TEST LIMITS
(CHARACTERISTIC V)
± (2.0 % + 0.05
Ω) ΔR
± (2.0 % + 0.05
Ω) ΔR
± (0.1 % + 0.05
Ω) ΔR
± (2.0 % + 0.05
Ω) ΔR
± (4.0 % + 0.05
Ω) ΔR
± (2.0 % + 0.05
Ω) ΔR
± (0.2 % + 0.05
Ω) ΔR
± (0.2 % + 0.05
Ω) ΔR
± (3.0 % + 0.05
Ω) ΔR
± (1.0 % + 0.05
Ω) ΔR
Note
(4)
All
ΔR
figures shown are maximum, based upon testing requirements per MIL-PRF-26 at a maximum operating temperature of + 350 °C.
ΔR
maximum figures are considerably lower when tested at a maximum operating temperature of + 250 °C.
Document Number: 30215
Revision: 10-Dec-07
For technical questions, contact: ww2aresistors@vishay.com
www.vishay.com
27
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000
Revision: 18-Jul-08
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