a subsidiary of tt electronics plc general note irc reserves the right to make changes in product speci?cation without notice or liability. all information is subject to ircs own data and is considered accurate at time of going to print. wirewound and film technologies division 736 greenway road ? boone, north carolina 28607-1860 ? tel: 828-264-8861 ? fax: 828-264-8866 ? www.irctt.com ? 1, 3 & 5 watts ? 1% or 5% tolerance (2% below 5 mohm) ? resistance wire tcr 20 ppm/c ? contact factory for height speci?cations, application notes and resistance values below 0.0025 ohms. resistive element stand-off weld node copper leads available resistance (ohms) 0.003 ohms to 0.10 ohms 0.0025 ohms to 0.10 ohms irc type OAR-1TP oar-3tp specifications: irc power rating (watts) 1w @ 85c 3w @ 85c f 0.040 0.002 (1.02mm 0.051) 0.040 0.002 (1.02mm 0.051) 0.040 0.002 (1.02mm 0.051) irc type OAR-1TP dimensions (inches and (mm)) : on lower ranges stand-off may be eliminated note: contact factory for: 1. variations of a dimension. 2. different lead diameter. a 0.275 +0.040/-0.031 (7.0 mm +1.0/-0.8) 0.275 +0.040/-0.031 (7.0 mm +1.0/-0.8) 0.197 +0.040/-0.031 (5.0 mm +1.0/-0.8) b 0.300 max (7.8 mm) 1.25 max (32 mm) 1.25 max (32 mm) c 0.125 0.100 (5.08 mm 2.54) 0.125 0.100 (5.08 mm 2.54) 0.125 0.100 (5.08 mm 2.54) e 0.065 +0.010/-0.005 (1.65mm +0.25/-0.13) 0.065 +0.010/-0.005 (1.65mm +0.25/-0.13) 0.065 +0.010/-0.005 (1.65mm +0.25/-0.13) test point (kelvin connection) features: ? welded construction ? flameproof ? inductance less than 10 nanohenries applications: ? current sensing ? feedback ? low inductance ? surge and pulse operating characteristics: ? load life @25c (1000 hrs): 1% max. ? moisture no load (1000 hrs): 1% max. ? temperature cycle @ -40c & +125c (1000 cyc): 1% max. oar-tp series open air sense resistors ? lead free rohs compliant construction available how to order: sample part no.: oar-1 0.10 5% lf irc type power (watts) resistance range (ohms) tolerance lead-free cosntruction oar-3tp resistance (ohms) 0.003 - 0.10 <0.005 0.005 - 0.10
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