Open Air Sense Resistors Metal Alloy Strip OAR TP OAR TP Series *Open Superior surge performance Air Sense Resistors *Metal Hot spot isolated from PCB material Alloy Strip * Resistance wire TCR 20ppm/C * 1% or 5% tolerance (2% below 5mOhm) Lead Free compliant construction available ** Superior surge RoHS performance * * * * Hot spot isolated from PCB material Resistance wire TCR 20ppm/C 1% or 5% tolerance (2% below 5mOhm) Lead Free RoHS compliant construction available Electrical Data IRC Type Power Rating (watts) Available Resistance (ohms) OAR-1TP 1W @ 85C 0.003 ohms to 0.10 ohms OAR-3TP 3W @ 85C 0.0025 ohms to 0.10 ohms OAR-5TP 5W @ 85C 0.003 ohms to 0.050 ohms Physical Data A .050 Weld Node 0.093 REF On lower ranges stand-off may be eliminated. B NOTE: Contact factory for: 1. Variations of "A" dimension. 2. Different lead diameter. Resistive Element Copper Leads Stand-Off Test Point (Kelvin connection) E C D A Dimensions (Inches and (mm)) IRC Type Resistance (Ohms) OAR-1TP 0.003 - 0.10 <0.005 OAR-3TP 0.005 - 0.10 OAR-5TP 0.003 - 0.050 A B C E F 0.197 +0.040/-0.031 0.300 max 0.125 0.100 0.065 +0.010/-0.005 0.040 0.002 (5.0 +1.0/-0.8) (7.8) (5.08 2.54) (1.65 +0.25/-0.13) (1.02 0.051) 0.275 +0.040/-0.031 1.00 max 0.125 0.100 0.065 +0.010/-0.005 0.040 0.002 (7.0 +1.0/-0.8) (25.4) (5.08 2.54) (1.65 +0.25/-0.13) (1.02 0.051) 0.197 +0.040/-0.031 1.00 max 0.125 0.100 0.065 +0.010/-0.005 0.040 0.002 (5.0 +1.0/-0.8) (25.4) (5.08 2.54) (1.65 +0.25/-0.13) (1.02 0.051) 0.275 +0.040/-0.031 1.10 max 0.125 0.100 0.065 +0.010/-0.005 0.040 0.002 (7.0 +1.0/-0.8) (27.9) (5.08 2.54) (1.65 +0.25/-0.13) (1.02 0.051) GeneralNote Note General IRC reserves the right to makethe changes product specifi cation without notice orspecification liability. TT electronics reserves rightinto make changes in product without notice or liability. All information is subject to IRC's own data and is considered accurate at time of going to print. All information is subject to TT electronics' 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: (c) TT electronics plc 361 992 3377 * Website: www.irctt.com A subsidiary of www.bitechnologies.com www.irctt.com www.welwyn-tt.com TT electronics plc OAR-TP Series Issue October 2010 Sheet 1 of 2 09. 11 OAR TP Open Sense Resistors OpenAirAir Sense Resistors Metal Alloy Strip Metal Alloy Strip OAR TP Series Features: Operating Characteristics: * Welded construction * Load life @ 25C (1000 hrs): 1% max. * Flameproof * Moisture no load (1000 hrs): 1% max. * Inductance less than 10 nanohenries * Temperature cycle @ -40C & +125C (1000 cyc): 1% max. Applications: * Current sensing * Feedback * Low inductance * Surge and pulse Ordering Data Sample Part No. OAR-TP 1 R100 J LF IRC Style Power Rating in Watts Resistance Range Tolerance RoHS Indicator 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 OAR-TP Series Issue October 2010 Sheet 2 of 2 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. www.bitechnologies.com www.irctt.com www.welwyn-tt.com (c) TT electronics plc 09. 11