C&H Technology CW User Manual
Vishay dale, Rohs
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Wirewound Resistors, Commercial Coated, Axial Lead
CW
Vishay Dale
www.vishay.com
For technical questions, contact: [email protected]
Document Number: 30215
20
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)
P
25 °C
W
RESISTANCE 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
V
AC
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 to + 250, characteristic V = - 65 to + 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 k
Ω
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
Historical Part Number Example: CW-2C-14 10 k
Ω 5 % B12 (will continue to be accepted for tin/lead product only)
CW-2C-14
10 k
Ω
5 %
B12
HISTORICAL MODEL
RESISTANCE VALUE
TOLERANCE CODE
PACKAGING
2
C
1
0
0
0
J
K
W
0
B
1
2
C
4
1