CW - High Surge
www.vishay.com
Vishay Dale
Wirewound Resistors, High Surge Immunity,
Silicone Coated, Axial Lead
FEATURES
• High voltage surge immunity, up to 12 kV
• High temperature silicone coating
• Complete welded construction
• Excellent stability in operation
• High power to size ratio
• Material categorization:
For definitions of compliance please see
www.vishay.com/doc?99912
Available
Available
Available
Available
Note
*
This datasheet provides information about parts that are RoHS-compliant and/or parts that are non-RoHS-compliant. For example, parts
with lead (Pb) terminations are not RoHS-compliant. Please see the information/tables in this datasheet for details.
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
CW001...HS
CW02B...HS
CW005...HS
CW010...HS
POWER RATING
(1)
P
25 °C
W
CHARACTERISTIC U
+250 °C
1.0
3.0
5.0
10.0
POWER RATING
(1)
P
25 °C
W
CHARACTERISTIC V
+350 °C
-
3.75
6.5
13.0
RESISTANCE
RANGE
0.1 to 6.37K
0.1 to 15K
0.1 to 58.5K
0.1 to 167K
TOLERANCE
±%
5, 10
5, 10
5, 10
5, 10
WEIGHT
(max.)
g
0.34
0.7
4.2
9.0
Note
(1)
Vishay Dale CW models have two power ratings, depending on operating temperature and stability requirements.
TECHNICAL SPECIFICATIONS
PARAMETER
Temperature Coefficient
Dielectric Withstanding Voltage
Short Time Overload
Terminal Strength
Maximum Working Voltage
Operating Temperature Range
Power Rating
UNIT
ppm/°C
V
AC
-
lb
V
°C
-
CW RESISTOR CHARACTERISTICS
± 30 for 10
and above, ± 50 for 1.0
to 9.9
,
± 90 for 0.5
to 0.99
1000
5 x rated power for 5 s for 3.75 W size and smaller,
10 x rated power for 5 s for 4 W size and greater
10 minimum
(P
x R)
1/2
Characteristic U = -65 to +250, characteristic V = -65 to +350
Characteristic U = +250 °C max. hot spot temperature, ± 0.5 % max.
R
in 2000 h load life
Characteristic V = +350 °C max. hot spot temperature, ± 3.0 % max.
R
in 2000 h load life
GLOBAL PART NUMBER INFORMATION
Global Part Numbering example: CW02B10K00JB12HS (preferred part number format)
C
W
0
2
B
1
0
K
0
0
J
B
1
2
H
S
GLOBAL
MODEL
(5 digits)
CW001
CW02B
CW005
CW010
VALUE
(5 digits)
R
= Decimal
K
= Thousand
1R500
= 1.5
1K500
= 1.5 k
TOLERANCE
(1 digit)
H
= ± 3.0 %
J
= ± 5.0 %
K
= ± 10.0 %
PACKAGING
(3 digits)
E70
= Lead (Pb)-free, tape/reel, 1K pcs. (CW001 and CW02B)
E73
= Lead (Pb)-free, tape/reel, 500 pcs.
E12
= Lead (Pb)-free, bulk
S70
= Tin/lead, tape/reel, 1K pcs. (CW001 and CW02B)
S73
= Tin/lead, tape/reel, 500 pcs.
B12
= Tin/lead, bulk
SPECIAL
(2 digits)
HS
=
High Surge
Revision: 31-Mar-14
Document Number: 30285
1
For technical questions, contact:
ww2aresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
CW - High Surge
www.vishay.com
HIGH VOLTAGE SURGE
The surge handling capability is based upon applying an exponential open circuit voltage waveform according to specification
IEC 61000-4-5 (1.2 μs/50 μs) as shown below at an ambient temperature of 25 °C.
U
1.0
0.9
B
Vishay Dale
0.5
0.3
0.1
0.0
O
1
A
T
2
T
T
1
30 % max.
{
t
Front time: T
1
= 1.67 x T = 1.2 μs ± 30 %
Time to half-value: T
2
= 50 μs ± 20 %
Open circuit voltage waveform at the output of the pulse generator
PEAK SURGE VOLTAGE
- IEC 61000-4-5 (1.2 μs/50 μs pulse)
100 000
Peak
Surge
Voltage (V)
10 000
12 kV
10 kV
8 kV
6 kV
4 kV
CW010...HS
1000
CW005...HS
CW02B...HS
CW001...HS
100
0.1
1
10
100
Resistance (Ω)
1000
10 000
100 000
MINIMUM RESISTANCE VALUE FOR SURGE VOLTAGE
GLOBAL
MODEL
CW001...HS
CW02B...HS
CW005...HS
CW010...HS
PEAK SURGE VOLTAGE
4 kV
586
151
15
2.6
6 kV
1.7
457
43
7.6
8 kV
-
1.0 k
94
17
10 kV
-
1.8 k
171
30
12 kV
-
3.0 k
281
50
Revision: 31-Mar-14
Document Number: 30285
2
For technical questions, contact:
ww2aresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
CW - High Surge
www.vishay.com
DIMENSIONS
in inches (millimeters)
1.50 [38.10]
(1)
min.
A
C
Vishay Dale
B
D
MODEL
CW001...HS
CW02B...HS
CW005...HS
CW010...HS
DIMENSIONS
in inches [millimeters]
A
0.406 ± 0.031 [10.31 ± 0.787]
0.562 ± 0.062 [14.27 ± 1.57]
0.875 ± 0.062 [22.22 ± 1.57]
1.781 ± 0.062 [45.24 ± 1.57]
B [MAXIMUM]
(2)
0.437 [11.10]
0.622 [15.80]
1.0 [25.40]
1.875 [47.62]
C
0.094 ± 0.031 [2.39 ± 0.787]
0.188 ± 0.032 [4.78 ± 0.813]
0.312 ± 0.032 [7.92 ± 0.813]
0.375 ± 0.032 [9.52 ± 0.813]
D
0.020 ± 0.002 [0.508 ± 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]
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.
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.
DERATING
RATED POWER IN %
120
100
80
60
40
20
0
CHAR. U
CHAR. V
- 50
- 65
0
25
50
150
250
350
AMBIENT TEMPERATURE IN °C
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 min at -55 °C
5 x rated power (3.75 W and smaller), 10 x 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 Hz 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 s to 10 s 10 pound pull test; torsion test - 3 alternating directions, 360° each
TEST LIMITS
(4)
(CHARACTERISTIC V)
± (2.0 % + 0.05
) R
± (2.0 % + 0.05
) R
± (0.1 % + 0.05
) R
± (2.0 % + 0.05
) R
± (4.0 % + 0.05
) R
± (2.0 % + 0.05
) R
± (0.2 % + 0.05
) R
± (0.2 % + 0.05
) R
± (3.0 % + 0.05
) R
± (1.0 % + 0.05
) R
Note
(4)
All
R
figures shown are maximum, based upon testing requirements per MIL-PRF-26 at a maximum operating temperature of +350 °C.
R
maximum figures are considerably lower when tested at a maximum operating temperature of +250 °C.
Revision: 31-Mar-14
Document Number: 30285
3
For technical questions, contact:
ww2aresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
Legal Disclaimer Notice
www.vishay.com
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
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 in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
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Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of
typical requirements that are often placed on Vishay products in generic applications. Such statements are not binding
statements about the suitability of products for a particular application. It is the customer’s responsibility to validate that a
particular product with the properties described in the product specification is suitable for use in a particular application.
Parameters provided in datasheets and / or specifications may vary in different applications and performance may vary over
time. All operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
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Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for
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© 2017 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED
Revision: 08-Feb-17
1
Document Number: 91000
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