Extremely Low Resistance Power Wirewounds Fireproof high temperature ceramic case PLO Series • 3 watts to 15 watts • 0.005 ohm to 0.18 ohm • ±1%, ±2, ±3, ±5, ±10% tolerance • TC’s from 30 ppm/°C to +500 ppm/°C (range dependant) All welded terminations Electrical Data IRC Type Power @ 25°C (watts) Resistance Range (ohms) PLO-3 3 .005 TO .18 PLO-5 5 .005 TO .18 PLO-7 7 .01 TO .18 PLO-10 10 .01 TO .18 PLO-15 15 .01 TO .18 -Inductance less than 10 nanohenries. NOTE: Standard test points for PLO-3 and PLO-5 are 1.75 in. (44.45mm); test points for PLO-7, PLO-15 are 2.500 in (63.50mm). Consult factory for application. Please note: When ordering the alternate configuration please add an "A" after the part number. (PLO-3A) Standard Configuration Alternate Configuration E 0.125” Max. .75” Min. L W D H Type 4LPW Type PLO-XA Dimensions (Inches (mm)) IRC Type L ±.063 (1.6) W ±.03 (.8) H ±.03 (.8) D - Diameter ±.002 (.05) E ±.03 (.8) PLO-3 .88 (22.4) .31 (7.87) .31 (7.87) .040 .38 (9.65) PLO-5 .88 (22.4) .38 (9.65) .35 (8.89) .040 .41 (10.4) PLO-7 1.39 (35.3) .38 (9.65) .35 (8.89) .040 .47 (11.9) PLO-10 1.88 (47.8) .38 (9.65) .35 (8.89) .040 .47 (11.9) PLO-15 1.88 (47.8) .50 (12.7) .50 (12.7) .040 .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 PLO Series Issue November 2008 Sheet 1 of 2 Extremely Low Resistance Power Wirewounds Temperature Rise Chart PLO-3, 5, 7, 10 PLO-10 200 PLO-7 150 PLO-5 100 PLO-3 50 0 0 20 40 60 25 40 100 PLO-15 Percent Rated Load Hot Spot Temperature (°C) 250 Power Derating Curve 80 100 120 80 PLO-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. PLO 5 R020 F IRC Type PLO Power 5 = 5 watts (see specification chart for other power ratings) Resistance Range Expressed in ohms (Standard EIA/MIL values) Tolerance F = ±1%, G = ±2%, H = ±3%, J = ±5%, K = ±10% standard 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 PLO Series Issue November 2008 Sheet 2 of 2