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
Lead (Pb)-free version is RoHS compliant
Pb-free
Available
e3
RoHS*
COMPLIANT
STANDARD ELECTRICAL SPECIFICATIONS
POWER RATING**
P
25 °C
W
RESISTANCE RANGE
Ω
± 5 %, ± 10 %***
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 - 6.8K
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
** Vishay Dale CW models have two power ratings, depending on operating temperature and stability requirements
*** 3 % tolerance available
• Shaded areas indicate most popular models
GLOBAL
MODEL
HISTORICAL
MODEL
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 sec. for 3.75 W size and smaller,
10 × rated power for 5 sec. 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 hrs. load life
Characteristic V = + 350 °C max. hot spot temperature, ± 3.0 % max.
ΔR
in 2000 hrs. load life
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: CW02C10K00JB1214 (preferred part numbering format)
C
W
0
2
C
1
0
K
0
0
J
B
1
2
1
4
SPECIAL
(Dash
Number)
(up to 3 digits)
From
1-999
as applicable
GLOBAL MODEL
(See Standard Electrical
Specifications Global Model
column for options)
E70
= Lead (Pb)-free, Tape/Reel 1k pcs
E73
= Lead (Pb)-free, Tape/Reel 500 pcs
E12
= Lead (Pb)-free, Bulk
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 k
Ω
5
%
B12 (will continue to be accepted)
RESISTANCE
VALUE
R
= Decimal
K
= Thousand
1R500
= 1.5
Ω
1K500
= 1.5 k
Ω
TOLERANCE
CODE
H
=±3
%
J
=±5
%
K
= ± 10
%
PACKAGING
CW-2C-14
10 k
Ω
5
%
TOLERANCE CODE
B12
PACKAGING
HISTORICAL MODEL
RESISTANCE
VALUE
* 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: 13-Sep-06
CW
Wirewound Resistors, Commercial Coated, Axial Lead
Vishay Dale
DIMENSIONS
1.50 [38.10]*
Minimum
A
C
DIMENSIONS
in inches [millimeters]
MODEL
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]
B
(Maximum)***
0.281
[7.14]
0.437
[11.10]
0.311
[7.90]
0.765
[19.43]
0.562
[14.27]
0.622
[15.80]
0.563
[14.30]
0.593
[15.06]
0.593
[15.06]
1.0
[25.40]
1.0
[25.40]
1.0
[25.40]
1.281
[32.54]
1.875
[47.62]
1.875
[47.62]
C
D
B
D
CW1/2
CW001
CW01M
CW002
CW02M
CW02B
* On some standard reel pack methods, the leads may be trimmed
to a shorter length than shown.
0.085 ± 0.020 0.020 ± 0.002
[2.16 ± 0.508] [0.508 ± 0.051]
0.094 ± 0.031 0.020 ± 0.002
[2.39 ± 0.787] [0.508 ± 0.051]
0.110 ± 0.015 0.020 ± 0.002
[2.79 ± 0.381] [0.508 ± 0.051]
0.250 ± 0.032 0.040 ± 0.002
[6.35 ± 0.813] [1.02 ± 0.051]
0.185 ± 0.015 0.032 ± 0.002
[4.70 ± 0.381] [0.813 ± 0.051]
0.188 ± 0.032 0.032 ± 0.002
[4.78 ± .813] [0.813 ± 0.051]
0.188 ± 0.032 0.032 ± 0.002
[4.78 ± 0.813] [0.813 ± 0.051]
0.218 ± 0.032 0.040 ± 0.002
[5.54 ± 0.813] [1.02 ± 0.051]
0.218 ± 0.032 0.032 ± 0.002
[5.54 ± .813] [0.813 ± 0.051]
0.312 ± 0.032 0.040 ± 0.002
[7.92 ± 0.813] [1.02 ± 0.051]
0.250 ± 0.032 0.032 ± 0.002
[6.35 ± .813] [0.813 ± 0.051]
0.312 ± 0.032 0.032 ± 0.002
[7.92 ± 0.813] [0.813 ± 0.051]
0.312 ± 0.032 0.040 ± 0.002
[7.92 ± 0.813] [1.02 ± 0.051]
0.375 ± 0.032 0.040 ± 0.002
[9.52 ± 0.813] [1.02 ± 0.051]
0.375 ± 0.032 0.032 ± 0.002
[9.52 ± 0.813] [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**, Value, Tolerance,
Date Code
** Wattage marked on resistor will be “V” characteristic, CW1/2 will
not be marked with wattage
CW02B...13
0.500 ± 0.062
[12.70 ± 1.57]
CW02C
CW02C...14
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]
RATED POWER IN
%
120
100
CW005
CW005...2
80
CW005...3
60
CHAR. V
40
20
0
- 65 - 50
CW007
CW010
CW010...3
CHAR. U
0
25
50
Derating
150
250
350
AMBIENT TEMPERATURE IN
°
C
*** B (Maximum) dimension is clean lead to clean lead.
PERFORMANCE****
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 minutes at - 55 °C
5 x rated power (3.75 W and smaller), 10 × rated power
(4 W and larger) for 5 sec.
1000 V
rms
, one minute
- 65 °C for 24 hours
250 hours at + 350 °C
MIL-STD-202 Method 106, 7b not applicable
MIL-STD-202 Method 213, 100 g’s for 6 milliseconds, 10 shocks
Frequency varied 10 to 2000 Hz, 20 g peak, 2 directions 6 hours each
2000 hours at rated power, + 25 °C, 1.5 hours “ON”, 0.5 hours “OFF”
5 to 10 second 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
**** 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: 13-Sep-06
For technical questions, contact: ww2aresistors@vishay.com
www.vishay.com
27
Legal Disclaimer Notice
Vishay
Notice
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc.,
or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, by
estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's
terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express
or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness
for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.
Customers using or selling these products for use in such applications do so at their own risk and agree to fully
indemnify Vishay for any damages resulting from such improper use or sale.
Document Number: 91000
Revision: 08-Apr-05
www.vishay.com
1
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