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| UW Series CeramicWirewoundResistors * * * * * * * Resistances from 0.01 to 91kOhms Tolerance to 0.01% Low Temperature Coefficient Power Rating to 15Watts All Welded Resistance Element Non-Inductive Windings are Available Flameproof Inorganic Construction SPECIFICATIONS Type UW-2 UW-3 UW-5 UW-10 UW-15 PowerRating W@70C Resistance1 Range 0.01to22k 0.01to22k 0.01to45k 0.01to65k 0.01to91k 0.04[1.0] 0.700[17.8] 0.875[22.2] 0.875[22.2] 1.875[48] 1.875[48] L 0.04[1.0] 0.245[6.2] 0.312[7.9] 0.375[9.5] 0.375[9.5] 0.500[12.7] 1 H 0.04[1.0] 0.300[7.6] 0.375[9.5] 0.437[11.1] 0.500[12.7] 0.625[15.9] HS 0.015[0.4] 0.255[6.5] 0.312[7.9] 0.375[9.5] 0.375[9.5] 0.500[12.7] W 0.015[0.4] 0.032[0.8] 0.032[0.8] 0.032[0.8] 0.040[1.0] 0.040[1.0] d2 2 3 5 10 15 2 Fornon-inductivewindings/dividemaximumresistanceby2 LeadDiameter:18AWG=0.040"/20AWG=0.032" Ordering Information ForNon-InductiveWindings/inserttheletter"N"(i.e.UWN-5) PartNumber-Resistance-Tolerance-TCR(Ifnotstandard) Example:UW-5100Ohm1% 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 UW Series CeramicWirewoundResistors SPECIFICATIONS (continued) Specification Tolerances Temperature Coefficient Value 0.01%to10%(1%Standard) >10W:20ppm/K 1Wto10W:50ppm/K <1W:CallFactory -55Cto+275C 1500VAC Centerlessgroundceramiccore Tinnedcopperorcopperweldleads Hightemperature/inorganicpottingcompound Allweldedterminations TemperatureRange DielectricStrength Constuction EnvironmentalPerformance (MIL-STD202) DR 0.2%+0.05W 1%+0.05W 0.2%+0.05W 0.2%+0.05W 0.2%+0.05W 0.2%+0.05W 0.1%+0.05W 0.1%+0.05W Dielectric LoadLife Storage MoistureResistance ThermalShock 5XOverload(5s) Shock Vibration PowerDeratingCurve 120 100 Power(%) 80 60 40 20 0 0 50 100 150 200 250 300 350 AmbientTemperature(C) 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 |
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