CPW, CPWN
Vishay Dale
www.vishay.com
36
Document Number 30216
Revision 16-Feb-06
For technical questions, contact ww2aresistors@vishay.com
Wirewound Resistors, Commercial Power, Axial Lead
FEATURES
• High power to size ratio
• Ceramic cases are available with circuit board
stand-offs (designated with a -3 model ending)
• Superior surge capability
• Complete welded construction
• Available in non-inductive styles with Aryton-
Perry winding (CPWN in lieu of CPW,
maximum resistance is one-half CPW range)
• Special inorganic potting compound and ceramic case
provide high thermal conductivity in a fireproof package
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL HISTORICAL POWER RATING RESISTANCE RANGE WEIGHT
MODEL MODEL P40 °CΩ(TYPICAL)
W± 1 %, ± 2 %, ± 3 %, ± 5 % g
CPW02 CPW-2 2 0.1 - 7 k 2.0
CPW02...3 CPW-2-3 2 0.1 - 7 k 2.2
CPW03 CPW-3 3 0.1 - 7.5 k 3.4
CPW03...3 CPW-3-3 3 0.1 - 7.5 k 3.6
CPW05 CPW-5 5 0.1 - 8.5 k 4.8
CPW05...3 CPW-5-3 5 0.1 - 8.5 k 5.0
CPW07 CPW-7 7 0.1 - 18 k 6.8
CPW07...3 CPW-7-3 7 0.1 - 18 k 7.0
CPW10 CPW-10 10 0.12 - 30 k 9.5
CPW10...3 CPW-10-3 10 0.12 - 30 k 9.9
CPW15 CPW-15 15 0.12 - 30 k 16.8
CPW15...3 CPW-15-3 15 0.12 - 30 k 17.4
CPW20 CPW-20 20 0.18 - 45 k 22.8
CPW20...3 CPW-20-3 20 0.18 - 45 k 23.6
TECHNICAL SPECIFICATIONS
PARAMETER UNIT CPW RESISTOR CHARACTERISTICS
Temperature Coefficient ppm/°C± 90 below 1.0 Ω, ± 50 for 1.0 Ω to 9.9 Ω, ± 30 for 10 Ω and above
Short Time Overload - 5 x rated power for 5 seconds
Maximum Working Voltage V (P x R)1/2
Operating Temperature Range
°C - 65/+ 275
Terminal Strength lb 10 minimum
Dielectric Withstanding Voltage
VAC 1000
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: CPW0515R00JB313 (preferred part numbering format)
CPW0515R00JB313
Historical Part Number example: CPW-5-3 15 Ω 5 % B31 (will continue to be accepted)
HISTORICAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING
GLOBAL MODEL
(See Standard
Electrical
Specificatiions
Global Model
column for
options)
SPECIAL
(Dash Number)
(up to 3 digits)
From 1-999
as applicable
RESISTANCE
VALUE
R = Decimal
K = Thousand
R1500 = 0.15 Ω
1K500 = 1500 Ω
TOLERANCE CODE
D = ± 0.5 % H = ± 3.0 %
F = ± 1.0 % J = ± 5.0 %
G = ± 2.0 % K = ± 10 %
PACKAGING
E14 = Lead (Pb)-free, bulk
E31 = Lead (Pb)-free four layer bulk
E01 = Lead (Pb)-free skin pack
B14 = Tin/lead bulk
B31 = Tin/lead four layer bulk
J01 = Tin/Lead, skin pack
CPW-5-3 15 Ω 5 % B31
Available
Pb-free
RoHS*
COMPLIANT
e3
* Pb containing terminations are not RoHS compliant, exemptions may apply
www.vishay.com
37
CPW, CPWN
Vishay Dale
Document Number 30216
Revision 16-Feb-06
For technical questions, contact ww2aresistors@vishay.com
DIMENSIONS
Wirewound Resistors, Commercial Power, Axial Lead
MATERIAL SPECIFICATIONS
Element: Copper-nickel alloy or nickel-chrome alloy, depending
on resistance value
Core: Ceramic
End Caps: Stainless steel
Body: Steatite ceramic case with inorganic potting compound
Terminals: Tinned Copperweld®
Part Marking: DALE, Model, Wattage, Value, Tolerance, Date
Code
GLOBAL DIMENSIONS in inches [millimeters]
MODEL A* B C D E
± 0.031 [0.794] ± 0.031 [0.794] ± 0.031 [0.794] ± 0.031 [0.794] ± 0.001 [0.025]
CPW02 0.688 [17.46] 0.250 [6.35] 0.250 [6.35] - 0.032 [0.813]
CPW02...3 0.688 [17.46] 0.250 [6.35] 0.250 [6.35] 0.313 [7.94] 0.032 [0.813]
CPW03 0.875 [22.22] 0.313 [7.94] 0.313 [7.94] - 0.032 [0.813]
CPW03...3 0.875 [22.22] 0.313 [7.94] 0.313 [7.94] 0.375 [9.52] 0.032 [0.813]
CPW05 0.875 [22.22] 0.375 [9.52] 0.344 [8.73] - 0.032 [0.813]
CPW05...3 0.875 [22.22] 0.375 [9.52] 0.344 [8.73] 0.406 [10.32] 0.032 [0.813]
CPW07 1.391 [35.32] 0.375 [9.52] 0.344 [8.73] - 0.032 [0.813]
CPW07...3 1.391 [35.32] 0.375 [9.52] 0.344 [8.73] 0.469 [11.91] 0.032 [0.813]
CPW10 1.875 [47.62] 0.375 [9.52] 0.344 [8.73] - 0.032 [0.813]
CPW10...3 1.875 [47.62] 0.375 [9.52] 0.344 [8.73] 0.469 [11.91] 0.032 [0.813]
CPW15 1.875 [47.62] 0.500 [12.70] 0.500 [12.70] - 0.032 [0.813]
CPW15...3 1.875 [47.62] 0.500 [12.70] 0.500 [12.70] 0.625 [15.87] 0.032 [0.813]
CPW20 2.500 [63.50] 0.500 [12.70] 0.500 [12.70] - 0.032 [0.813]
CPW20...3 2.500 [63.50] 0.500 [12.70] 0.500 [12.70] 0.625 [15.87] 0.032 [0.813]
Derating
PERFORMANCE
TEST CONDITIONS OF TEST TEST LIMITS (EIA RS-344)
Thermal Shock - 55 °C to + 275 °C, 5 cycles, 30 minute dwell time ± (2.0 % + 0.05 Ω)
∆
R
Short Time Overload 5 x rated power for 5 seconds ± (2.0 % + 0.05 Ω)
∆
R
Dielectric Withstanding Voltage 1000 Vrms for one minute ± (0.1 % + 0.05 Ω)
∆
R
Low Temperature Operation - 65° C, full rated working voltage for 45 minutes ± (2.0 % + 0.05 Ω)
∆
R
Bias Humidity 75 °C, 90 % - 100 % RH, 240 hours ± (2.0 % + 0.05 Ω)
∆
R
Load Life 1000 hours at rated power, + 40 °C, 1.5 hours “ON”, 0.5 hours “OFF” ± (3.0 % + 0.05 Ω)
∆
R
Terminal Strength
5 to 10 second 10 pound pull test, torsion test - 3 alternating directions, 360° each
± (1.0 % + 0.05 Ω)
∆
R
Resistance to Solder Heat Terminal immersed 3.5 seconds in molten solder at 1/8" to 3/16" from body ± (1.0 % + 0.05 Ω)
∆
R
* Potting compound may extend outside of ceramic case up to 0.060 [1.52] maximum per side.
CPWxx
C
B
A
1.0 [25.4]
Minimum
E
0.125
[3.18]
Typical B
CPWxx...3
A
1.0 [25.4]
Minimum
C
D
E
RATED POWER IN %
- 65 - 25 25 75 125 175 225 275
AMBIENT TEMPERATURE IN °C
120
100
80
60
40
20
0
40
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
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