USR4-1410

USR UNR 4-1410 • Highest Stability • Near Temperature Independency • Lowest Tolerances • Low Capacitance And Inductance • Customized Resistance Values SPECIFICATIONS ELECTRICAL Resistance Range Power Rating Tolerance from 0R1 from 10R from 50R Stability : : : : : : : USR 4-1410 0R1...100R 0.8 W (70°C) UNR 4-1410 note1) 0.1%, 0.25%, 0.5%, 1% 0.05%, 0.1%, 0.25%, 0.5%, 1% 0.01%, 0.02%, 0.05%, 0.1%, 0.25%, 0.5%, 1% 0.01% max. ±5 ppm/K (-55...155)°C typ. ±3 ppm/K (-55...125)°C upon request ±1 ppm/K (0...60)°C > 10 GOhm < 1 µV/K Temperature Coefficient : Insolation Resistance Thermal EMF : : ENVIRONMENTAL Operative Temperature Range : : : : : -55°C...155°C NiCr-Foil Al2O3 PBTP / Epoxy Cu tinned, 4-pin MECHANICAL Resistor Material Substrate Housing Connector Material AlN note1): Specially designed for applications with fast changing electrical load. Willow Technologies Ltd. Shawlands Court, Newchapel Road, Lingfield, Surrey, RH7 6BL, United Kingdom Tel . + 44 (0) 1342 835234 Fax. + 44 (0) 1342 834306 E-Mail. sales@willow.co.uk Web. www.willow.co.uk USR UNR 4-1410 TEMPERATURE COEFFICIENT 600 +5 ppm/K 400-5 ppm/K dR/R (ppm ) 200 0 +2,2 ppm/K -200 -400 -600 -50 -25 0 25 50 75 Tem perature (°C) -1,8 ppm/K No minal-dR/R No minal-Spread +/-2,3 ppm/K No minal-Spread +/-2,3 ppm/K 100 125 DERATING CURVE 100 pow er (% from nom inal pow er) 80 60 40 20 0 25 40 55 70 85 100 115 130 145 155 Am bient Tem perature (°C) DIMENSIONS Dimensions in mm HOW TO ORDER USR 4-1410 10R X 0.1% TK1 UNR 4-1410 0R1 X 0.5% TK3 Willow Technologies Ltd. Shawlands Court, Newchapel Road, Lingfield, Surrey, RH7 6BL, United Kingdom Tel . + 44 (0) 1342 835234 Fax. + 44 (0) 1342 834306 E-Mail. sales@willow.co.uk Web. www.willow.co.uk