PWR101202JLF

General Purpose Stand-Up Power Wirewound Resistor 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 Inorganic fireproof encapsulant Alloy resistance wire on fiberglass substrate Fireproof high temperature ceramic case with stand-off Specifications - Power Rating: 3, 5, 7, and 10 watts - Resistance Range: 7 watt: 0.1Ω to 18K 3 watt: 0.1Ω to 7.5K 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 Physical Data A B C Meniscus permitted to bottom of feet 0.080 ±0.032 LD 0.170 ±0.062 E D Dimensions (Inches and (mm)) IRC Type PWR-3 PWR-5 PWR-7 PWR-10 General Note A 0.475 ±0.030 (12.0 ±0.8) 0.500 ±0.030 (12.7 ±0.8) 0.500 ±0.030 (12.7 ±0.8) 0.630 ±0.032 (16.0 ±0.81) B 0.320 ±0.030 (8.1 ±0.8) 0.350 ±0.030 (8.8 ±0.8) 0.350 ±0.030 (8.8 ±0.8) 0.510 ±0.032 (13.2 ±0.81) C 1.00 ±0.030 (25.4 ±0.8) 1.00 ±0.030 (25.4 ±0.8) 1.50 ±0.032 (38.1 ±0.81) 1.39 ±0.032 (35.3 ±0.81) D 0.200 ±0.062 (5.08 ±1.6) 0.200 ±0.062 (5.08 ±1.6) 0.200 ±0.062 (5.08 ±1.6) 0.290 ±0.062 (7.4 ±1.6) E 0.175 ±0.062 (4.44 ±1.6) 0.175 ±0.062 (4.44 ±1.6) 0.175 ±0.062 (4.44 ±1.6) 0.250 ±0.062 (6.4 ±1.6) LD 0.036 ±0.002 (0.91 ±0.05) 0.036 ±0.002 (0.91 ±0.05) 0.036 ±0.002 (0.91 ±0.05) 0.036 ±0.002 (0.91 ±0.05) 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. 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 A subsidiary of TT electronics plc PWR Series Issue November 2008 Sheet 1 of 2 General Purpose Stand-Up Power Wirewound Resistor Temperature Rise Chart 300 Hot Spot Temperature (°C) Hot Spot Temperature (°C) Power Derating Curve 100 80 PWR - 7, 10 60 25 85 PWR - 3, 5 200 PWR - 7, 10 PWR - 3, 5 100 40 20 0 0 50 100 150 Rated Power (%) 200 250 0 0 20 40 60 80 100 120 Rated Power (%) Ordering Data Sample Part No. IRC Type PWR PWR 10 1202 K LF Power Resistance Range Tolerance J = ±5%, K = ±10% RoHS Indicator LF indicates RoHS compliance 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 PWR Series Issue November 2008 Sheet 2 of 2