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
Available
• 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
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
POWER RATING (1)
P25 °C W
CHARACTERISTIC U
+250 °C
GLOBAL
MODEL
POWER RATING (1)
P25 °C W
CHARACTERISTIC V
+350 °C
RESISTANCE
RANGE
TOLERANCE
±%
WEIGHT
(max.)
g
0.34
CW001...HS
1.0
-
0.1 to 6.37K
5, 10
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
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
UNIT
CW RESISTOR CHARACTERISTICS
ppm/°C
± 30 for 10 and above, ± 50 for 1.0 to 9.9 , ± 90 for 0.5 to 0.99
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
-
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
Power Rating
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)
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
Revision: 31-Mar-14
S70 = Tin/lead, tape/reel, 1K pcs. (CW001 and CW02B)
S73 = Tin/lead, tape/reel, 500 pcs.
B12 = Tin/lead, bulk
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
Vishay Dale
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
0.5
T2
A
0.3
0.1
0.0
O1
T
T1
t
30 % max. {
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)
Peak Surge Voltage (V)
100 000
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
1000
10 000
100 000
Resistance (Ω)
MINIMUM RESISTANCE VALUE FOR SURGE VOLTAGE
GLOBAL
MODEL
PEAK SURGE VOLTAGE
4 kV
6 kV
8 kV
10 kV
CW001...HS
586
1.7
-
-
12 kV
-
CW02B...HS
151
457
1.0 k
1.8 k
3.0 k
CW005...HS
15
43
94
171
281
CW010...HS
2.6
7.6
17
30
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
Vishay Dale
DIMENSIONS in inches (millimeters)
1.50 [38.10] (1)
min.
C
A
B
D
DIMENSIONS in inches [millimeters]
MODEL
A
B [MAXIMUM] (2)
C
D
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]
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.
DERATING
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®
RATED POWER IN %
MATERIAL SPECIFICATIONS
120
100
80
60
End Caps: Stainless steel
40
Part Marking: DALE, model, wattage (3), value, tolerance,
date code
20
Note
(3) Wattage marked on resistor will be “V” characteristic.
0
- 50
- 65
CHAR. V
CHAR. U
0
50
25
150
250
350
AMBIENT TEMPERATURE IN °C
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
± (2.0 % + 0.05 ) R
Low Temperature Storage
-65 °C for 24 h
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
± (0.2 % + 0.05 ) R
Shock, Specified Pulse
MIL-STD-202 Method 213, 100 g’s for 6 ms, 10 shocks
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
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
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Vishay
Disclaimer
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Revision: 01-Jan-2021
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Document Number: 91000