Four-Terminal Current-Sensing Wirewound Resistor 4LPW Series ��������������� • TC = ±40ppm/°C • 3 watts to 15 watts ������������� • 0.005 ohm to 1.0 ohm • ±1%, ±2, ±3, ±5, ±10% tolerance ������������������������ ������������������������� Electrical Data IRC Type Power @ 25°C (watts) Max. Current (amps) Resistance Range (ohms) 4LPW-3 3 10 .005 TO 1.0 4LPW-5 5 10 .005 TO 1.0 4LPW-7 7 20 .01 TO 1.0 4LPW-10 10 20 .01 TO 1.0 4LPW-15 15 20 .01 TO 1.0 Please note: When ordering the alternate configuration please add an "A" after the part number. (4LPW-3A) Standard Configuration 1.0 (25.4) Min. Alternate Configuration 1/8” Max. L H D E W 1.50 ± .062 (38.1 ± 1.6) S D Type 4LPW Type 4LPW-A Dimensions (Inches (mm)) IRC Type L ±.063 (1.6) W ±.03 (.8) H ±.03 (.8) S ±.062 (1.6) D Diameter E ±.03 (.8) 4LPW-3 .88 (22.4) .31 (7.87) .31 (7.87) .563 (14.3) .036* (.9) .38 (9.65) 4LPW-5 .88 (22.4) .38 (9.65) .35 (8.89) .563 (14.3) .036* (.9) .41 (10.4) 4LPW-7 1.39 (35.3) .38 (9.65) .35 (8.89) 1.013 (25.7) .036* (.9) .47 (11.9) 4LPW-10 1.88 (47.8) .38 (9.65) .35 (8.89) 1.388 (35.3) .036* (.9) .47 (11.9) 4LPW-15 1.88 (47.8) .50 (12.7) .50 (12.7) 1.388 (35.3) .036* (.9) .63 (16.0) 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. 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 4LPW Series Issue October 2008 Sheet 1 of 2 Four-Terminal Current-Sensing Wirewound Resistor Temperature Rise Chart 100 4LPW-15 4LPW-3, 5, 7, 10 4LPW-10 200 4LPW-7 150 4LPW-5 100 4LPW-3 50 0 0 20 40 60 80 100 120 Percent Rated Load Hot Spot Temperature (°C) 250 Power Derating Curve 80 4LPW-15 60 40 Max. Recommended Ambient Operating Temperature 150°C 20 0 0 50 100 150 200 250 Ambient Temperature (°C) Percent Rated Load Ordering Data Sample Part No. 4LPW 15 R010 F IRC Type 4LPW Power 3 = 3W, 5 = 5W, 7 = 7W, 10 = 10W, 15 = 15W Resistance Range Expressed in ohms (Standard EIA/MIL values) Tolerance F = ±1%, G = ±2%, H = ±3%, J = ±5%, K = ±10% 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 4LPW Series Issue October 2008 Sheet 2 of 2