RF Series, High Frequency Power Resistors Thick film,Non-Inductive RF and Frequency Powers,in water forced ,in Oil,in Air Willow offers the RF series to meet general set of requirements NON-INDUCTIVE high frequency, satisfy with an high power and Non-inductive specification at Economic Price. Series RF Precision Power Resistor, Non-Inductive High Frequency Non Inductive Performence Full power and various ohmic ratings * Resistance tolerances offered from 1.0% to 10% * Load Life Stability of 0.5% per 1000hours. * Various Models of Resistance Value up to Megohms available. * Build up High Power RF Termination System :10kW,50kW,300kW System in oil or water forced, required tank & chiller System. Model Nr. Wattage Resistance [ ohm ] Min. Max. A Dimensions in millimeters (inches) B C Melf Type RF07 0.7 20R 2M 15(.59) 5.0(.196) 0.8 N/A RF2 2.0 20R 2M 24.0+/-1.5 (.944) 8.0+/-1.0 (.314) 1.00 Available RF3 3.0 20R 2M 39.0+/-1.5 (1.535) 8.0+/-1.0 (.314) 1.00 Available RF5 5.0 20R 2M 52.0+/-1.5 (2.047) 8.0+/-1.0 (.314) 1.00 Available RF50 50 20R 2M 110+/-1.5 (4.33) 33+/-1 (1.29) M6 tab axial N/A RF100 100 20R 2M 210+/-1.5 (8.50) 33+/-1 (1.29) M6 tab axial N/A RF150 150 20R 2M 310+/-1.5 (12.2) 33+/-1 (1.29) M6 tab axial N/A RF200 200 20R 2M 310+/-1.5 (12.2) 42+/-1 (1.65) M6 tab axial N/A RF Series, High Frequency Power Resistors Thick film,Non-Inductive SPECIFICATIONS DIMENSIONS [mm] 35 ± 5 B A C Temperature Coefficient : Std. 100ppm/ °C, referenced to 25°C, from -15°C to +105°C, other TCR available upon requests. Overload : 5times rated power with applied voltage not to exceed 1.5times Max. continuous operating voltage for 5seconds,overload/ overvoltage ΔR 0.50% typ. Rated Power or Voltage% DERATING CURVE 100 80 Thermal Shock : Mil-Std-202, Method- 107,Cond. C, ΔR 0.50% max. 60 40 Load Life : 1.000 hours at rated power ΔR 0.5% at DC AC. ΔR 3.0% at repetivepulse energy 20 0 Resistance Tolerance : 1%,2%,5%,10% 25 75125175 225275 Ambient-Temperature (˚C) Lead Material : RF07 ~RF5 ; Tinned copper solderable wire APPLICATION GUIDE ; RF SERIES • RF Termination • Industrial Vehicles • RF Dummy Load • Power Supply • Wave Form Load • Medical Equipments • High Frequency • Server Drivers • Charging/Discharging • Power Loaders • AVR ,UPS • Snubbers • Current dividing • Telecomm Equipments • Elevators control • Shunt • Electrical Trains • Testing Equipments • Experimentals • Inrrush Current Limiters • High Frequency Circuits • Preloads • Inverters • Dummy Loads • Power Braking • Rectifier • Military • Soft Start • Hoist Cranes • EMI Suppresions Moisture Resistance: Mil-Std-202, Method 106, ΔR 0.50% max. Insulation Resistance : 10,000Megohms Min. Termination Cap of Material : RF07~RF5 ; Tinned Cap & Wire RF50~RF200; AL alloy Cap M6. Encapsulation : High frequency silicone conformal, Glass • Motor Dynamic Braking cf.: The described specifications & dimensions subject to change without notice. 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 [email protected] designed by jonaldo , France