rev. 03/2006a uhr 4-5020d type uhr 4-5020d resistance range 1.0 to 40 ohms other values upon request power rating (70c) 8 w pulse energy 1 kj / 1s thermal resistance rthj-c 10 k/w tolerances 0.1% other tolerances upon request stability 0.1% temperature coeffcient 5ppm/k (-55 to 155c) insolation resistance 3 kvdc max. current 3 a thermal emf < 0.1v/k operating temperature range -55 to 155c resistor material nicr-foil substrate aln housing al connector material cu tinned terminals 4 specifications part number - resistance - tolerance uhr 4-5020d 10ohms 0.1% ordering information resistances from 1ohm to 40ohms power rating to 8watt resistance tolerances to 0.1% tcr to 5ppm/k load stability to 0.1% ? ? ? ? ? special resistors willow technologies ltd. shawlands court, newchapel road, lingfield, surrey, rh7 6bl, united kingdom. + 44 (0) 1342 835234 + 44 (0) 1342 834306 info@willow.co.uk http://www.willow.co.uk
rev. 03/2006a derating temperature coeffcient specifications (continued) uhr 4-5020d dimensions special resistors -800 -600 -400 -200 0 200 400 600 800 -50 -25 0 25 50 75 100 125 -5ppm/k +5ppm/k nominal ?r/r nominal spread 2.3ppm/k nominal spread 2.3ppm/k temperature (c) ?r/r (ppm) 0 20 40 60 80 100 120 50 70 90 110 130 155 ambient temperature (c) power (% from nominal power) dimension mm tol. (mm) inches tol. (inches) a 19.50 0.2 0.77 0.008 b 50.00 0.3 1.97 0.012 c 16.50 0.2 0.65 0.008 d 28.00 0.2 1.10 0.008 willow technologies ltd. shawlands court, newchapel road, lingfield, surrey, rh7 6bl, united kingdom. + 44 (0) 1342 835234 + 44 (0) 1342 834306 info@willow.co.uk http://www.willow.co.uk
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