Wirewound Resistors, Commercial Coated, Axial Lead
CW
Vishay Dale
www.vishay.com For technical questions, contact: ww2aresistors@vishay.com Document Number: 30215
26 Revision: 10-Dec-07
FEATURES
•High performance for low cost
•High temperature silicone coating
•Complete welded construction
•Excellent stability in operation
•High power to size ratio
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
* Pb containing terminations are not RoHS compliant, exemptions may apply
Available
Pb-free
RoHS*
COMPLIANT
e3
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
HISTORICAL
MODEL
POWER RATING (1) P25 °C WRESISTANCE RANGE Ω
± 5 %, ± 10 % (2) WEIGHT (Max.)
g
Characteristic U + 250 °C Characteristic V + 350 °C
CW1/2 CW-1/2 0.5 - 0.1 - 1.77K 0.21
CW001 CW-1 1.0 -0.1 - 6.37K 0.34
CW01M CW-1M 1.0 - 0.1 - 3.3K 0.3
CW002 CW-2 4.0 5.5 0.1 - 28.7K 2.1
CW02M CW-2M 3.0 3.75 0.1 - 12K 0.65
CW02B CW-2B 3.0 3.75 0.1 - 15K 0.7
CW02B...13 CW-2B-13 4.0 6.0 0.1 - 10.89K (3) 0.9
CW02C CW-2C 2.5 3.25 0.1 - 19.9K 1.8
CW02C...14 CW-2C-14 2.5 3.25 0.1 - 19.9K 1.2
CW005 CW-5 5.0 6.5 0.1 - 58.5K 4.2
CW005...2 CW-5-2 4.0 5.0 0.1 - 40.3K 4.2
CW005...3 CW-5-3 5.0 6.5 0.1 - 58.5K 4.2
CW007 CW-7 7.0 9.0 0.1 - 95.2K 4.7
CW010 CW-10 10.0 13.0 0.1 - 167K 9.0
CW010...3 CW-10-3 10.0 13.0 0.1 - 167K 9.0
TECHNICAL SPECIFICATIONS
PARAMETER UNIT CW RESISTOR CHARACTERISTICS
Temperature Coefficient ppm/°C ± 90 for below 1.0 Ω, ± 50 for 1.0 Ω to 9.9 Ω, ± 30 for 10 Ω and above
Dielectric Withstanding Voltage VAC 1000
Short Time Overload - 5 × rated power for 5 s for 3.75 W size and smaller,
10 × rated power for 5 s for 4 W size and greater
Terminal Strength lb 10 minimum
Maximum Working Voltage V (P × R)1/2
Operating Temperature Range °C Characteristic U = - 65/+ 250, Characteristic V = - 65/+ 350
Power Rating - Characteristic U = + 250 °C max. hot spot temperature, ± 0.5 % max. ΔR in 2000 h load life
Characteristic V = + 350 °C max. hot spot temperature, ± 3.0 % max. ΔR in 2000 h load life
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: CW02C10K00JB1214 (preferred part number format)
GLOBAL MODEL RES. VALUE TOL. CODE PACKAGING SPECIAL
(See Standard Electrical
Specifications Global Model
column for options)
R = Decimal
K = Thousand
1R500 = 1.5 Ω
1K500 = 1.5 kΩ
H = ± 3.0 %
J = ± 5.0 %
K = ± 10.0 %
E70 = Lead (Pb)-free, tape/reel 1K pcs
E73 = Lead (Pb)-free, tape/reel 500 pcs
E12 = Lead (Pb)-free, bulk
D18 = Lead (Pb)-free, R1R80 tape/reel
CW02B...13 pack code for Europe use only
S70 = Tin/lead, tape/reel 1K pcs
S73 = Tin/lead, tape/reel 500 pcs
B12 = Tin/lead, bulk
(Dash Number)
(up to 3 digits)
From 1 - 999
as applicable
Historical Part Number example: CW-2C-14 10 kΩ 5 % B12 (will continue to be accepted for tin/lead product only)
CW-2C-14 10 kΩ5 % B12
HISTORICAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING
2C10 00JKW0 B12C 41
CW
Wirewound Resistors, Commercial Coated, Axial Lead Vishay Dale
Document Number: 30215 For technical questions, contact: ww2aresistors@vishay.com www.vishay.com
Revision: 10-Dec-07 27
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, CW1/2 will
not be marked with wattage
Note
(4) All ΔR figures shown are maximum, based upon testing requirements per MIL-PRF-26 at a maximum operating temperature of + 350 °C.
ΔR maximum figures are considerably lower when tested at a maximum operating temperature of + 250 °C.
MODEL DIMENSIONS in inches [millimeters]
A B (Maximum) (2) 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]
D
C
1.50 [38.10]
(1)
Minimum A
B
RATED POWER IN %
AMBIENT TEMPERATURE IN °C
25
0
20
40
60
80
100
120
- 65
150 35050 2500- 50
CHAR. U
Derating
CHAR. V
PERFORMANCE (4)
TEST CONDITIONS OF TEST TEST LIMITS
(CHARACTERISTIC V)
Thermal Shock Rated power applied until thermally stable, then a minimum of 15 min at - 55 °C ± (2.0 % + 0.05 Ω) ΔR
Short Time Overload 5 x rated power (3.75 W and smaller), 10 × rated power (4 W and larger) for 5 s ± (2.0 % + 0.05 Ω) ΔR
Dielectric Withstanding Voltage
1000 Vrms, 1 min ± (0.1 % + 0.05 Ω) ΔR
Low Temperature Storage - 65 °C for 24 h ± (2.0 % + 0.05 Ω) ΔR
High Temperature Exposure 250 h at + 350 °C ± (4.0 % + 0.05 Ω) ΔR
Moisture Resistance MIL-STD-202 Method 106, 7b not applicable ± (2.0 % + 0.05 Ω) ΔR
Shock, Specified Pulse MIL-STD-202 Method 213, 100 g’s for 6 ms, 10 shocks ± (0.2 % + 0.05 Ω) ΔR
Vibration, High Frequency Frequency varied 10 to 2000 Hz, 20 g peak, 2 directions 6 h each ± (0.2 % + 0.05 Ω) ΔR
Load Life 2000 h at rated power, + 25 °C, 1.5 h “ON”, 0.5 h “OFF” ± (3.0 % + 0.05 Ω) ΔR
Terminal Strength
5 to 10 s 10 pound pull test; torsion test - 3 alternating directions, 360 °C each
± (1.0 % + 0.05 Ω) ΔR
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
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