Datasheet

Commercial Styles Semi-Precision
Power Wirewound Resistors
T / NT Wirewound Series
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General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
© TT electronics plc
07.12
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Wire and Film Technologies Division
Telephone: [phone] • Facsimile: 361 992 3377 • Website: www.irctt.com
Commercial Styles
Semi-Precision
Power Wirewound Resistors
Temperature Range
Characteristic U = -55°C to +275°C
Characteristic V = -55°C to +350°C
Standard Temperature Coeffi cient
±20 ppm/°C 10: up
±50 ppm/°C 1.0: to 9.9:
±400 ppm/°C 0.50: to 0.999:
±650 ppm/°C 0.1: to 0.490:
Special Temperature Coeffi cient
Available from -30 ppm/°C to +6000 ppm/°C
Temperature range for special TC’s -50°C to +150°C
Insulation Resistance
1000 megohms minimum dry at 100 volts DC
Derating
Wattage rating based on operation at 25°C
Derate to zero at 275°C & 350°C for "U" and "V" style rating
Lead Material:
Tinned copperweld is standard.
Also available: Weldable Grade A nickel (bare)
Special Features:
- Radial lead available
- Resistance network packages designed to individual customer requirements
- Temperature coeffi cient matching and tracking to ±5 ppm
- High thermal conductivity core (Beryllium Oxide) available. See B Series.
- Ratio tolerance matched sets available
General Specifi cations
T / NT Wirewound Series Issue January 2010 Sheet 2 of 4