UHR4-5020D

UHR 4-5020D Special Resistors • • • • • Resistances from 1Ohm to 40Ohms Power Rating to 8Watt Resistance Tolerances to ±0.1% TCR to ±5ppm/K Load Stability to 0.1% SPECIFICATIONS Type Resistance Range Power rating (70°C) Pulse Energy Thermal Resistance Rthj-c Tolerances Stability Temperature Coefficient Insolation Resistance max. Current Thermal EMF Operating Temperature Range Resistor Material Substrate Housing Connector Material Terminals 0.1% Other tolerances upon request UHR 4-5020D 1.0 to 40 Ohms Other values upon request 8 W 1 kJ / 1s 10 K/W 0.1% ±5ppm/K (-55 to 155°C) 3 kVDC 3 A < 0.1µV/K -55 to 155°C NiCr-Foil AlN Al Cu tinned 4 Ordering Information Part Number - Resistance - Tolerance UHR 4-5020D 10Ohms 0.1% Willow Technologies Ltd. Shawlands Court, Newchapel Road, Lingfield, Surrey, RH7 6BL, United Kingdom. http://www.willow.co.uk + 44 (0) 1342 835234 + 44 (0) 1342 834306 info@willow.co.uk rev. 03/2006A UHR 4-5020D Special Resistors SPECIFICATIONS (continued) Temperature Coefficient 800 600 +5ppm/K -5ppm/K ∆R/R (ppm) 400 200 0 -200 -400 -600 -800 -50 -25 0 25 50 75 100 125 Nominal ∆R/R Nominal Spread ±2.3ppm/K Nominal Spread ±2.3ppm/K Temperature (°C) 120 100 Derating Power (% from nominal power) 80 60 40 20 0 50 70 90 110 130 155 Ambient Temperature (°C) Dimensions Dimension A B C D mm 19.50 50.00 16.50 28.00 tol. (±mm) 0.2 0.3 0.2 0.2 inches 0.77 1.97 0.65 1.10 tol. (±inches) 0.008 0.012 0.008 0.008 Willow Technologies Ltd. Shawlands Court, Newchapel Road, Lingfield, Surrey, RH7 6BL, United Kingdom. http://www.willow.co.uk + 44 (0) 1342 835234 + 44 (0) 1342 834306 info@willow.co.uk rev. 03/2006A