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®
RoHS*
mmeau
FREE
GREEN
5.3m
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CW - High Surge
www.vishay.com Vishay Dale
Revision: 31-Mar-14 1Document Number: 30285
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
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
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.
Note
(1) Vishay Dale CW models have two power ratings, depending on operating temperature and stability requirements.
Available
Available
Available
Available
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
POWER RATING (1)
P25 °C W
CHARACTERISTIC U
+250 °C
POWER RATING (1)
P25 °C W
CHARACTERISTIC V
+350 °C
RESISTANCE
RANGE
TOLERANCE
± %
WEIGHT
(max.)
g
CW001...HS 1.0 - 0.1 to 6.37K 5, 10 0.34
CW02B...HS 3.0 3.75 0.1 to 15K 5, 10 0.7
CW005...HS 5.0 6.5 0.1 to 58.5K 5, 10 4.2
CW010...HS 10.0 13.0 0.1 to 167K 5, 10 9.0
TECHNICAL SPECIFICATIONS
PARAMETER UNIT CW RESISTOR CHARACTERISTICS
Temperature Coefficient ppm/°C ± 30 for 10 and above, ± 50 for 1.0 to 9.9 , ± 90 for 0.5 to 0.99
Dielectric Withstanding Voltage VAC 1000
Short Time Overload - 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
Terminal Strength lb 10 minimum
Maximum Working Voltage V (P x R)1/2
Operating Temperature Range °C Characteristic U = -65 to +250, characteristic V = -65 to +350
Power Rating - 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)
GLOBAL
MODEL
(5 digits)
VALUE
(5 digits)
TOLERANCE
(1 digit)
PACKAGING
(3 digits)
SPECIAL
(2 digits)
CW001
CW02B
CW005
CW010
R = Decimal
K = Thousand
1R500 = 1.5
1K500 = 1.5 k
H = ± 3.0 %
J = ± 5.0 %
K = ± 10.0 %
E70 = Lead (Pb)-free, tape/reel, 1K pcs. (CW001 and CW02B)
E73 = Lead (Pb)-free, tape/reel, 500 pcs.
E12 = Lead (Pb)-free, bulk
HS =
High Surge
S70 = Tin/lead, tape/reel, 1K pcs. (CW001 and CW02B)
S73 = Tin/lead, tape/reel, 500 pcs.
B12 = Tin/lead, bulk
W0 2B1 0 J 1B2HC S0K 0
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CW - High Surge
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Revision: 31-Mar-14 2Document Number: 30285
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
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.
Front time: T1 = 1.67 x T = 1.2 μs ± 30 %
Time to half-value: T2 = 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)
MINIMUM RESISTANCE VALUE FOR SURGE VOLTAGE
GLOBAL
MODEL
PEAK SURGE VOLTAGE
4 kV 6 kV 8 kV 10 kV 12 kV
CW001...HS 586 1.7 ---
CW02B...HS 151 457 1.0 k1.8 k3.0 k
CW005...HS 15 43 94 171 281
CW010...HS 2.6 7.6 17 30 50
1.0
0.5
0.3
0.1
0.0
A
B
0.9
U
T1
T
O1t
30 % max.{
T2
100 000
Peak Surge Voltage (V)
100
0.1 100 00010 0001000100101
1000
10 000
Resistance (Ω)
12 kV
10 kV
8 kV
6 kV
4 kV
CW010...HS
CW005...HS
CW02B...HS
CW001...HS
VISHAY.
350
CM/
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CW - High Surge
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Revision: 31-Mar-14 3Document Number: 30285
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
DIMENSIONS in inches (millimeters)
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
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.
MODEL DIMENSIONS in inches [millimeters]
AB [MAXIMUM] (2) CD
CW001...HS 0.406 ± 0.031 [10.31 ± 0.787] 0.437 [11.10] 0.094 ± 0.031 [2.39 ± 0.787] 0.020 ± 0.002 [0.508 ± 0.051]
CW02B...HS 0.562 ± 0.062 [14.27 ± 1.57] 0.622 [15.80] 0.188 ± 0.032 [4.78 ± 0.813] 0.032 ± 0.002 [0.813 ± 0.051]
CW005...HS 0.875 ± 0.062 [22.22 ± 1.57] 1.0 [25.40] 0.312 ± 0.032 [7.92 ± 0.813] 0.040 ± 0.002 [1.02 ± 0.051]
CW010...HS 1.781 ± 0.062 [45.24 ± 1.57] 1.875 [47.62] 0.375 ± 0.032 [9.52 ± 0.813] 0.040 ± 0.002 [1.02 ± 0.051]
D
C
1.50 [38.10] (1)
min. A
B
RATED POWER IN %
AMBIENT TEMPERATURE IN °C
25
0
20
40
60
80
100
120
- 65
150 35050 2500- 50
CHAR. U
CHAR. V
PERFORMANCE
TEST CONDITIONS OF TEST TEST LIMITS (4)
(CHARACTERISTIC V)
Thermal Shock Rated power applied until thermally stable, then a minimum of 15 min at -55 °C ± (2.0 % + 0.05 ) R
Short Time Overload 5 x rated power (3.75 W and smaller), 10 x rated power (4 W and larger) for 5 s ± (2.0 % + 0.05 ) R
Dielectric Withstanding
Voltage 1000 VRMS, 1 min ± (0.1 % + 0.05 ) R
Low Temperature Storage -65 °C for 24 h ± (2.0 % + 0.05 ) R
High Temperature Exposure 250 h at +350 °C ± (4.0 % + 0.05 ) R
Moisture Resistance MIL-STD-202 Method 106, 7b not applicable ± (2.0 % + 0.05 ) R
Shock, Specified Pulse MIL-STD-202 Method 213, 100 g’s for 6 ms, 10 shocks ± (0.2 % + 0.05 ) R
Vibration, High Frequency Frequency varied 10 Hz to 2000 Hz, 20 g peak, 2 directions 6 h each ± (0.2 % + 0.05 ) R
Load Life 2000 h at rated power, +25 °C, 1.5 h “ON”, 0.5 h “OFF” ± (3.0 % + 0.05 ) R
Terminal Strength 5 s to 10 s 10 pound pull test; torsion test - 3 alternating directions, 360° each ± (1.0 % + 0.05 ) R
—
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