Commercial Grade Power
Axial Wirewound Resistor
Performance Curves
Derating Curve
Sample Part No.
CCW
2
1001
J
LF
BLK
Ordering Data
Specify type, resistance, tolerance, RoHS-Compliance and packaging.
This example is for a Power Axial Wirewound, 2-watt, 1000Ω resistor.
100
Percent rated load (%)
80
60
40
20
+70°C
+155°C
+275°C
IRC Type
CCW - Power Axial Wirewound
Power rating
(see specs table)
(≥100Ω - First 3 significant digits plus 4th digit multiplier)
Example: 100Ω = 1000; 1000Ω = 1001
(>100Ω - "R" is used to designate decimal)
Example: 10Ω = 10R0; 1Ω = 1R00; 0.25Ω = R250
Resistance Value (EIA 4-digit code)
Tolerance (EIA format)
-55
0
50
100 150
200 250 300
G = ±2%
J = ±5%
K = ±10%
Ambient Temperature (°C)
RoHS - Compliance
Packaging
LF = RoHS compliant construction
BLK = bulk packaging
Temperature Rise Chart
8W, 9W
Temperature Rise (°C)
200
150
100
50
5W, 7W
2W, 3W
1/2W, 1W
0
50
Rated Load (%)
100
Wire and Film Technologies Division
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
CCW Series Issue August 2008 Sheet 3 of 3
IRCTT [ IRC - A TT ELECTRONICS COMPANY. ]
