Keramikrohr Variable Drahtwiderstand Controlle

ProductionnameVariable Resistor,Adjustable Resistance,Wirewound RheostatPower rating15W-20KW Resistance value0.01Ω-100KΩ Resistance tolerance0.1%, 0.5%, 1%, 5%, 10% Features1. Copper wire or chrominum alloy wire is wound on the ceramic tube coated with non-flammable resin,good dissipation ,high stability, and long life. 2.high power rating,high overload. 3.The DDR series own higher resistance value than the DQR series. 4.Widely used in power supply,transducer, elevator,arena audio and Lifting,Braking,Ship ,Load equipment, high requirement equipment industry,ect. 5.For customer specifications,can be made into variable resistor. Commonspecification50W20Ω,80W20Ω,100W20Ω,100W100Ω,150W10Ω,150W20Ω,200W20Ω, 200W200Ω,300W20Ω,300W150Ω,300W200Ω,400W150Ω,500W100Ω, 800W75Ω,1040W50Ω,1040W75Ω,2000W40Ω,2500W50Ω,3000W75Ωect. PerformanceTest item Test condition performance Temperature coefficient JIS-C-5202 5-2 ±350PPM/Max Power rating load JIS-C-5202 5-4 ΔR≤±(1%+0.1Ω)Surface temperature ≤350 Short-term overload JIS-C-5202 5-5 1000% rated power 5s Free or appearance or structural irregularity ΔR≤±(2%+0.1Ω) Insulation resistance JIS-C-5202 5-6 1000V DC 100 MΩ Min Dielectric withstanding voltage JIS-C-5202 5-7 1500V DC 60s Free or appearance or structural irregularity ΔR≤±(0.1%+0.05Ω) Vibration JIS-C-5202 6-3 1.5mm,10-50-10Hz/min Free or appearance or structural irregularity ΔR≤±(1%+0.05Ω) Thermal shock JIS-C-5202 7-3 Room temp 30 min ON-55 15 min OFF Resistor free of structural irregularity crack of silicon cement surface ΔR≤±(2%+0.1Ω) humidity JIS-C-5202 7-5 40 90%RH 240H Free or appearance or structural irregularity ΔR≤±(3%+0.1Ω) Load life JIS-C-5202 7-10 90Min ON-30Min OFF 500H Free or appearance or structural irregularity Discoloration of marking ΔR≤±(3%+0.1Ω) Cooperation partnerSAMSUNG,LG,TAIDA,CHANGHONG,TCL,KONKA ,ECT NOTE1. For customer specifications,please contact us to discuss the details. 2. Different power rating owning multi weight ,dimension and packing . 3. More details, please contact us.