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| UB Series SiliconeCoatedPowerResistors * * * * * * * Resistances from 0.005 to 260kOhms Power Rating 1 to 18Watts Resistance Tolerances to 0.01% Low TCR: 20ppm/K Standard MIL-R-26 / MIL-R-39007 Power Ratings Temperature Range: -55C to +350C ( "V" Rating ) Non-Inductive Windings Available SPECIFICATIONS WattageRating (Watts) U UB-1 UB-23 UB-3 UB-5 UB-5C UB-6 UB-10 UB-12 UB-15 1 Dimensions Maximum Ohms2 0.062" [1.6mm] Type A V 1.5 2 3 5 7 8 10 12 18 3.4k 7.5k 10k 25k 32k 50k 95k 150k 260k 0.031" [0.8mm] B 0.002" [0.05mm] 0.020 [0.5] 0.025[0.6] 0.020 [0.5] 0.025[0.6] 0.025 [0.6] 0.020[0.5] 0.032[0.8] 0.032[0.8] 0.040[1.0] 0.040[1.0] 0.040[1.0] 0.040[1.0] C 1 Maximum Working Voltage MIL-R-26/ MIL-R-39007 Style RW-81 RWR-81 RWR-82 RW-80 RWR-80 1 1.5 2 4 5 6 7 10 15 0.250[6.4] 0.312[7.9] 0.406[10.3] 0.560[14.2] 0.500[12.7] 0.625[15.9] 0.875[22.2] 1.220[31.0] 1.780[45.2] 0.085[2.2] 0.078[2.0] 0.094[2.4] 0.187[4.7] 0.218[5.5] 0.250[6.4] 0.312[7.9] 0.312[7.9] 0.375[9.5] 33 42 80 162 194 258 425 607 1050 RW-84 LeadDiameter:18AWG=0.040"/20AWG=0.032"/22AWG=0.025"/24AWG=0.020" Wheremorethanoneleadislisted/thetopvalueisStandard 2 Fornon-inductivewindings/dividemaximumresistanceby2 3 ThispartdoesnotmeettheRoHSdirective-callfactoryfordetails Ordering Information ForNon-InductiveWindings/inserttheletter"N"(i.e.UBN-5) PartNumber-Resistance-Tolerance-TCR(Ifnotstandard) Example:UB-310Ohm1% Riedon Inc. 300CypressAvenue AlhambraCA91801 www.riedon.com (626)284-9901 (626)284-1704 Page103 rev.03/2006A UB Series SiliconeCoatedPowerResistors SPECIFICATIONS (continued) Specification Tolerances Temperature Coefficient Value 0.01%to10%(1%Standard) >10W:20ppm/K 1Wto10W:50ppm/K <1W:CallFactory -55Cto+250C:CharacteristicU -55Cto+350C:CharacteristicV 500VAC:UB-1/UB-2/UB-3 1000VAC:AllOthers Centerlessgroundceramiccore Tinnedcopperorcopperweldleads Hightemperature/trivalent/inorganicSiliconecoating Allweldedterminations TemperatureRange DielectricStrength Constuction EnvironmentalPerformance (MIL-STD202) DR CharacteristicU 0.2%+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 CharacteristicV 0.2%+0.05W 2%+0.05W 2%+0.05W 2%+0.05W 2%+0.05W 0.2%+0.05W 0.2%+0.05W Dielectric LoadLife Storage MoistureResistance ThermalShock 5XOverload(5s) Shock Vibration to1%dependingonsizeandResistanceValue PowerDeratingCurve 120 100 Power(%) 80 60 40 20 0 CH CH AR V AR U 0 50 100 150 200 250 300 350 400 AmbientTemperature(C) Riedon Inc. 300CypressAvenue AlhambraCA91801 www.riedon.com (626)284-9901 (626)284-1704 Page104 rev.03/2006A |
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