CW
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Vishay Dale
Wirewound Resistors, Commercial Power,
Silicone 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
Compliant to RoHS Directive 2002/95/EC
Notes
* Pb containing terminations are not RoHS compliant, exemptions may apply
** Please see document Vishay Material Category Policy: www.vishay.com/doc?99902
STANDARD ELECTRICAL SPECIFICATIONS
(1) (1)
POWER RATING P W POWER RATING P W
25 C 25 C
GLOBAL HISTORICAL RESISTANCE RANGE TOLERANCE WEIGHT
CHARACTERISTIC U + 250 CHARACTERISTIC V + 350
(2)
MODEL MODEL % (max.) g
C C
CW1/2 CW-1/2 0.5 - 0.1 to 1.77K 5, 10 0.21
CW001 CW-1 1.0 - 0.1 to 6.37K 5, 10 0.34
CW01M CW-1M 1.0 - 0.1 to 3.3K 5, 10 0.3
CW002 CW-2 4.0 5.5 0.1 to 28.7K 5, 10 2.1
CW02M CW-2M 3.0 3.75 0.1 to 12K 5, 10 0.65
CW02B CW-2B 3.0 3.75 0.1 to 15K 5, 10 0.7
(3)
CW02B...13 CW-2B-13 4.0 6.0 0.1 to 10.89K 5, 10 0.9
CW02C CW-2C 2.5 3.25 0.1 to 19.9K 5, 10 1.8
CW02C...14 CW-2C-14 2.5 3.25 0.1 to 19.9K 5, 10 1.2
CW005 CW-5 5.0 6.5 0.1 to 58.5K 5, 10 4.2
CW005...2 CW-5-2 4.0 5.0 0.1 to 40.3K 5, 10 4.2
CW005...3 CW-5-3 5.0 6.5 0.1 to 58.5K 5, 10 4.2
CW007 CW-7 7.0 9.0 0.1 to 95.2K 5, 10 4.7
CW010 CW-10 10.0 13.0 0.1 to 167K 5, 10 9.0
CW010...3 CW-10-3 10.0 13.0 0.1 to 167K 5, 10 9.0
Notes
(1)
Vishay Dale CW models have two power ratings, depending on operating temperature and stability requirements
(2)
3 % tolerance available
(3)
Higher values available on request
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 V 1000
AC
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
1/2
Maximum Working Voltage V (P x R)
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
Power Rating -
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: CW02C10K00JB1214
C W0 2C1 0 K 0 0 J B1 2 1 4
GLOBAL MODEL VALUE TOLERANCE PACKAGING SPECIAL
(See Standard R = Decimal H = 3.0 % E70 = Lead (Pb)-free, tape/reel, 1K pcs (smaller than CW005) (Dash Number)
Electrical K = Thousand J = 5.0 % E73 = Lead (Pb)-free, tape/reel, 500 pcs (up to 3 digits)
E12 = Lead (Pb)-free, bulk
Specifications 1R500 = 1.5 K = 10.0 % From 1 to 999
D18 = Lead (Pb)-free, R1R80 tape/reel
Global Model 1K500 = 1.5 k as applicable
CW02B...13 pack code for Europe use only
column for
S70 = Tin/lead, tape/reel, 1K pcs (smaller than CW005)
options)
S73 = Tin/lead, tape/reel, 500 pcs
B12 = Tin/lead, bulk
Historical Part Numbering example: CW-2C-14 10 k 5 % B12
CW-2C-14 10 k 5 % B12
HISTORICAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING
Revision: 01-Feb-12 Document Number: 30215
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
www.vishay.com
Vishay Dale
DIMENSIONS in inches (millimeters)
(1)
1.50 [38.10]
C
A
min.
B D
DIMENSIONS in inches [millimeters]
MODEL
(2)
AB [MAXIMUM] CD
CW1/2 0.250 0.031 [6.35 0.787] 0.281 [7.14] 0.085 0.020 [2.16 0.508] 0.020 0.002 [0.508 0.051]
CW001 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]
CW01M 0.285 0.025 [7.24 0.635] 0.311 [7.90] 0.110 0.015 [2.79 0.381] 0.020 0.002 [0.508 0.051]
CW002 0.625 0.062 [15.87 1.57] 0.765 [19.43] 0.250 0.032 [6.35 0.813] 0.040 0.002 [1.02 0.051]
CW02M 0.500 0.062 [12.70 1.57] 0.562 [14.27] 0.185 0.015 [4.70 0.381] 0.032 0.002 [0.813 0.051]
CW02B 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]
CW02B...13 0.500 0.062 [12.70 1.57] 0.563 [14.30] 0.188 0.032 [4.78 0.813] 0.032 0.002 [0.813 0.051]
CW02C 0.500 0.062 [12.70 1.57] 0.593 [15.06] 0.218 0.032 [5.54 0.813] 0.040 0.002 [1.02 0.051]
CW02C...14 0.500 0.062 [12.70 1.57] 0.593 [15.06] 0.218 0.032 [5.54 0.813] 0.032 0.002 [0.813 0.051]
CW005 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]
CW005...2 0.875 0.062 [22.22 1.57] 1.0 [25.40] 0.250 0.032 [6.35 0.813] 0.032 0.002 [0.813 0.051]
CW005...3 0.875 0.062 [22.22 1.57] 1.0 [25.40] 0.312 0.032 [7.92 0.813] 0.032 0.002 [0.813 0.051]
CW007 1.218 0.062 [30.94 1.57] 1.281 [32.54] 0.312 0.032 [7.92 0.813] 0.040 0.002 [1.02 0.051]
CW010 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]
CW010...3 1.781 0.062 [45.24 1.57] 1.875 [47.62] 0.375 0.032 [9.52 0.813] 0.032 0.002 [0.813 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 DERATING
120
Element: Copper-nickel alloy or nickel-chrome alloy,
depending on resistance value
100
Core: Ceramic: Steatite or alumina, depending on physical
size 80
Coating: Special high temperature silicone
60 CHAR. V
Standard Terminals: Tinned Copperweld
(CW02B13 is tinned copper)
40 CHAR. U
End Caps: Stainless steel
(3) 20
Part Marking: DALE, model, wattage , value, tolerance,
date code
0
- 50 0 50 150 250 350
Note
- 65
(3) 25
Wattage marked on resistor will be V characteristic, CW1/2 will AMBIENT TEMPERATURE IN C
not be marked with wattage
PERFORMANCE
(4)
TEST LIMITS
TEST CONDITIONS OF TEST
(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
1000 V , 1 min (0.1 % + 0.05 ) R
rms
Voltage
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 gs 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
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: 01-Feb-12 Document Number: 30215
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
RATED POWER IN %