CW
Vishay Dale
Wirewound Resistors, Commercial 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
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
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
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
Notes
(1)
Vishay Dale CW models have two power ratings, depending on
operating temperature and stability requirements
HISTORICAL
MODEL
Characteristic U + 250 °C Characteristic V + 350 °C
POWER RATING
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 V
Short Time Overload -
Terminal Strength lb 10 minimum
Maximum Working Voltage V (P × R)
Operating Temperature Range °C Characteristic U = - 65 to + 250, characteristic V = - 65 to + 350
Powe r Rating -
AC
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
(1)
P
W
25 °C
(2)
3 % tolerance available
(3)
Higher values available on request
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
RESISTANCE RANGE Ω
± 5 %, ± 10 %
1000
1/2
(2)
(3)
WEIGHT (max.)
Pb-free
Available
e3
RoHS*
COMPLIANT
g
0.9
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: CW02C10K00JB1214 (preferred part number format)
2C10 00JKW0 B12C 41
GLOBAL MODEL RES. VALUE TOL. CODE PACKAGING SPECIAL
(See Standard Electrical
Specifications Global Model
column for options)
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 kΩ 5 % B12
HISTORICAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING
* Pb containing terminations are not RoHS compliant, exemptions may apply
www.vishay.com For technical questions, contact: ww2aresistors@vishay.com
20 Revision: 10-Dec-07
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 pieces
E73 = Lead (Pb)-free, tape/reel 500 pieces
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 pieces
S73 = Tin/lead, tape/reel 500 pieces
B12 = Tin/lead, bulk
(Dash Number)
(up to 3 digits)
From 1 - 999
as applicable
Document Number: 30215
CW
Wirewound Resistors, Commercial Coated, Axial Lead
Vishay Dale
DIMENSIONS in inches [millimeters]
1.50 [38.10]
minimum
MODEL
A B (maximum)
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
(1)
A
B
C
D
DIMENSIONS in inches [millimeters]
(2)
CD
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,
RATED POWER IN %
120
100
80
60
40
20
CHAR. U
CHAR. V
date code
Note
(3)
Wattage marked on resistor will be “V” characteristic, CW1/2 will
not be marked with wattage
PERFORMANCE
(4)
TEST CONDITIONS OF TEST
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 V
, 1 min ± (0.1 % + 0.05 Ω) ΔR
rms
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
Note
(4)
All ΔR figures shown are maximum, based upon testing requirements per MIL-PRF-26 at a maximum operating temperature of + 350 °C.
5 to 10 s 10 pound pull test; torsion test - 3 alternating directions, 360 °C each
ΔR maximum figures are considerably lower when tested at a maximum operating temperature of + 250 °C.
Document Number: 30215 For technical questions, contact: ww2aresistors@vishay.com
Revision: 10-Dec-07 21
0
- 65
Derating
150 35050 2500- 50
25
AMBIENT TEMPERATURE IN °C
TEST LIMITS
(CHARACTERISTIC V)
± (1.0 % + 0.05 Ω) ΔR
www.vishay.com
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
Loading...