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3, 5, 7, and 10 watts 0.1 Ω to 18k Ω range Radial leads for PC mount TC’s from 300 ppm/°C to +5500 ppm/°C Resistors 05.16 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 www.ttelectronicsresistors.com BI Technologies IRC Welwyn Fireproof high temperature ceramic case with stand-off Inorganic fireproof encapsulant Alloy resistance wire on fiberglass substrate General Note 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 Fireproof high temperature ceramic case with stand-off Inorganic fireproof encapsulant Alloy resistance wire on fiberglass substrate PWR Series

  • 3, 5, 7, and 10 watts
  • 0.1Ω to 18KΩ range
  • Radial leads for PC mount
  • TC’s from 300 ppm/°C to +5500 ppm/°C General Purpose Stand-Up Power Wirewound Resistor Dimensions (Inches and (mm)) IRC Type A B C D E LD PWR-3 0.475 ±0.030 (12.0 ±0.8) 0.320 ±0.030 (8.1 ±0.8) 1.00 ±0.030 (25.4 ±0.8) 0.200 ±0.062 (5.08 ±1.6) 0.175 ±0.062 (4.44 ±1.6) 0.036 ±0.002 (0.91 ±0.05) PWR-5 0.500 ±0.030 (12.7 ±0.8) 0.350 ±0.030 (8.8 ±0.8) 1.00 ±0.030 (25.4 ±0.8) 0.200 ±0.062 (5.08 ±1.6) 0.175 ±0.062 (4.44 ±1.6) 0.036 ±0.002 (0.91 ±0.05) PWR-7 0.500 ±0.030 (12.7 ±0.8) 0.350 ±0.030 (8.8 ±0.8) 1.50 ±0.032 (38.1 ±0.81) 0.200 ±0.062 (5.08 ±1.6) 0.175 ±0.062 (4.44 ±1.6) 0.036 ±0.002 (0.91 ±0.05) PWR-10 0.630 ±0.032 (16.0 ±0.81) 0.510 ±0.032 (13.2 ±0.81) 1.39 ±0.032 (35.3 ±0.81) 0.290 ±0.062 (7.4 ±1.6) 0.250 ±0.062 (6.4 ±1.6) 0.036 ±0.002 (0.91 ±0.05) Physical Data Specifications - Power Rating: 3, 5, 7, and 10 watts - Resistance Range: 3 watt: 0.1Ω to 7.5K 7 watt: 0.1Ω to 18K 5 watt: 0.1Ω to 8.5K 10 watt: 0.18Ω to 18K - Tolerance: ±5% and ±10% (refer to PWRG for tolerances less than 5% pg.129) - Flameproof inorganic construction - EIA RS-344, insulated fixed wirewound resistors A C E B LD D 0.080 ±0.032 0.170 ±0.062 Meniscus permitted to bottom of feet PWR Series Issue November 2008 Sheet 1 of 2 General Purpose Stand-Up Power Wirewound Resistor PWR Series 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 2.14
  • 3, 5, 7, and 10 watts
  • 0.1Ω to 18KΩ range
  • Radial leads for PC mount
  • TC’s from 300 ppm/°C to +5500 ppm/°C General Note 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 Fireproof high temperature ceramic case with stand-off Inorganic fireproof encapsulant Alloy resistance wire on fiberglass substrate PWR Series
  • 3, 5, 7, and 10 watts
  • 0.1Ω to 18KΩ range
  • Radial leads for PC mount
  • TC’s from 300 ppm/°C to +5500 ppm/°C General Purpose Stand-Up Power Wirewound Resistor Dimensions (Inches and (mm)) IRC Type A B C D E LD PWR-3 0.475 ±0.030 (12.0 ±0.8) 0.320 ±0.030 (8.1 ±0.8) 1.00 ±0.030 (25.4 ±0.8) 0.200 ±0.062 (5.08 ±1.6) 0.175 ±0.062 (4.44 ±1.6) 0.036 ±0.002 (0.91 ±0.05) PWR-5 0.500 ±0.030 (12.7 ±0.8) 0.350 ±0.030 (8.8 ±0.8) 1.00 ±0.030 (25.4 ±0.8) 0.200 ±0.062 (5.08 ±1.6) 0.175 ±0.062 (4.44 ±1.6) 0.036 ±0.002 (0.91 ±0.05) PWR-7 0.500 ±0.030 (12.7 ±0.8) 0.350 ±0.030 (8.8 ±0.8) 1.50 ±0.032 (38.1 ±0.81) 0.200 ±0.062 (5.08 ±1.6) 0.175 ±0.062 (4.44 ±1.6) 0.036 ±0.002 (0.91 ±0.05) PWR-10 0.630 ±0.032 (16.0 ±0.81) 0.510 ±0.032 (13.2 ±0.81) 1.39 ±0.032 (35.3 ±0.81) 0.290 ±0.062 (7.4 ±1.6) 0.250 ±0.062 (6.4 ±1.6) 0.036 ±0.002 (0.91 ±0.05) Physical Data Specifications - Power Rating: 3, 5, 7, and 10 watts - Resistance Range: 3 watt: 0.1Ω to 7.5K 7 watt: 0.1Ω to 18K 5 watt: 0.1Ω to 8.5K 10 watt: 0.18Ω to 18K - Tolerance: ±5% and ±10% (refer to PWRG for tolerances less than 5% pg.129) - Flameproof inorganic construction - EIA RS-344, insulated fixed wirewound resistors A C E B LD D 0.080 ±0.032 0.170 ±0.062 Meniscus permitted to bottom of feet PWR Series Issue November 2008 Sheet 1 of 2 NOT RECOMMENDED FOR NEW DESIGNS

05.16 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 www.ttelectronicsresistors.com BI Technologies IRC Welwyn General Purpose Stand-Up Power Wirewound Resistor PWR Series 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 2.14

  • 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 General Purpose Stand-Up Power Wirewound Resistor Temperature Rise Chart 300 200 100 0 20 40 60 80 100 120 Hot Spot Temperature (°C) Rated Power (%) PWR - 7, 10 PWR - 3, 5 Power Derating Curve 100 0 50 100 150 200 250 Hot Spot Temperature (°C) Rated Power (%) PWR - 7, 10 8525 PWR - 3, 5 Sample Part No. IRC Type PWR Power Resistance Range Tolerance J = ±5%, K = ±10% RoHS Indicator LF indicates RoHS compliance Ordering Data PWR 10 1202 K LF PWR Series Issue November 2008 Sheet 2 of 2