T1801000F IRCTT | Alldatasheet
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IRC reserves the right to make changes in product specification without notice or liability. All information is subject to IRC’s own data and is considered accurate at time of going to print. A subsidiary of TT electronics plc• 4222 South Staples Street • Corpus Christi T exas 78411 USAWire and Film Technologies Division T elephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com Silicone coat Weldable and solderable leads All welded construction High thermal conductivity, centerless ground ceramic cores for optimum heat distribution and dissipation T Wirewound Series
- 0.1Ω to 300KΩ
- 0.75 to 14 watts
- ±0.1% to ±10% tolerance
- Non-inductive windings available
- Meets or exceeds all applicable MIL-R-26 ratings Commercial Styles Semi-Precision Power Wirewound Resistors * Available as radial lead = type TR. To designate non-inductive winding, add prefix "N" to style. Electrical Data IRC Style Similar To MIL-R-26 Style Wattage Rating Resistance Range (Ω) Maximum Working VoltageU V Min Ω Max KΩ T-1A-70 RW70 1.0 --- 0.1 12 109.5 T-1-80 RW80 2.0 --- 0.1 12 154.9 T-2A-69 RW69 --- 3.0 0.1 20 244.9 T-2B-79 RW79 3.0 --- 0.1 40 346.4 T-5-74 RW74 5.0 --- 0.1 94 685.5 T-6-67 RW67 --- 6.5 0.1 92 773.3 T-7A-55 RW55 --- 7.0 0.1 200 1183.2 T-10A-56 RW56 --- 14.0 0.1 300 2049.4 T-10-78 RW78 10.0 --- 0.1 300 1732 T-10-68 RW68 --- 11.0 0.1 300 1816.6 T Wirewound Series Issue December 2008 Sheet 1 of 4
- 4222 South Staples Street • Corpus Christi T exas 78411 USAWire and Film Technologies Division T elephone: 361 992 7900 • 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 Coefficient ±20 ppm/°C 10Ω up ±50 ppm/°C 1.0Ω to 9.9Ω ±400 ppm/°C 0.50Ω to 0.999Ω ±650 ppm/°C 0.1Ω to 0.490Ω Special Temperature Coefficient 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 coefficient matching and tracking to ±5 ppm - High thermal conductivity core (Beryllium Oxide) available. See B Series. - Ratio tolerance matched sets available General Specifications T Wirewound Series Issue December 2008 Sheet 2 of 4
- 4222 South Staples Street • Corpus Christi T exas 78411 USAWire and Film Technologies Division T elephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com Dimensions (Inches and (mm)) IRC / Shallcross Style A B C Inches mm Inches mm Inches Physical Data Commercial Styles Semi-Precision Power Wirewound Resistors C Diameter A Length B Diameter 1 ½” (38.1mm) Minimum Lead Length T Wirewound Series Issue December 2008 Sheet 3 of 4
- 4222 South Staples Street • Corpus Christi T exas 78411 USAWire and Film Technologies Division T elephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com Sample Part No. Style Resistance Value Expressed in ohms (Standard EIA/MIL values) Tolerance Ordering Data T180 1000 1% Commercial Styles Semi-Precision Power Wirewound Resistors T Wirewound Series Issue December 2008 Sheet 4 of 4