C&H Technology CW User Manual
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
Loading...