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| TOKEN KNP-VE Wirewound Resistors Vitreous Enamel Coated Wirewound Resistors Vitreous Enamel Coated Power High Energy Wirewound Resistors Preview The KNP-VE Series of vitreous enamel coated power resistors from Token offers a cost-competitive alternative over the 2.5W-12W power range. The range is available with resistance values of 1 to 39K in power ratings of 2.5W, 3W, 5W, 6W, 8W, 9W and 12W (at 25C), and with body sizes that match the industry standards. Vitreous enamelled resistors were introduced at a time when alternative directly applied coatings could not withstand the thermal stresses caused by the resistors' high body temperatures. Token offers the durability of a lead free conformal vitreous enamel coating, permits the KNP-VE Series resistors to maintain a hard coating while operating at high temperatures. Mechanical integrity is enhanced by the all-welded construction. Power KNP-VE Wirewound Series are ideal for computer, communications and industrial applications in which cost, quality, and reliability are key considerations. The KNP-VE series is RoHS compliant and Ayrton Perry noninductive windings are available on request. To address your need for technical and economic success in a timely manner, our custom solutions are the best choise. Contact us with your specific needs. Applications - Power tools - Consumer applications - Power supplies, Welders - High voltage applications - High-switching applications - Home entertainment, appliances Features - Excellent pulse load capability - Axial leads, All-welded construction - A wide range of power ratings 2.5W to 12W - A wide resistance range 1 to 39K, Tolerance 5%, 10% - Products with Pb-free Terminations and RoHS compliant - Rugged vitreous enamel coating withstands high humidity and temperature cycling - Durable construction, recommended for industrial applications where reliability is paramount Version 2010 http://www.token.com.tw/ rfq token.com.tw 01 of 03 TOKEN Technical Specifcations Power Derating Curve 100 Rated Power % 80 60 40 20 -55 25 60 120 180 240 Ambient Temp. C KNP-VE Wirewound Resistors d 30 350 D L 30 Type KNP-VE-2.5 KNP-VE-3 KNP-VE-5 KNP-VE-6 KNP-VE-8 KNP-VE-9 KNP-VE-12 Rated Watts (W) 2.5 3 5 6 8 9 12 Resistance Range () 1 ~ 1K 1 ~ 1K 1 ~ 3.6K 1 ~ 6.8K 1 ~ 20K 1 ~ 27K 1 ~ 39K Limiting Voltage (V) 100 120 160 200 400 500 750 Tolerance Temperature Coefficient (PPM/C) Dimensions (mm) (Max) L 12.7 14.0 23.0 22.2 33.9 38.1 53.5 D 5.6 7.0 7.0 8.0 8.0 8.0 8.0 d 5% 10% 250 400 0.8 1.0 Performance Test Items Insulation Resistance Short Time Overload Rated Load Dielectric Withstanding Voltage Temp. Cycle Load Life Moisture-Proof Load Life Soldering After Resistance Incombustibility Condition 500V 2.5 times of rated voltage 5 sec. Rated wattage 30 min. 500V AC 1 min -20C ~ 85C 5 cycles 70C on ~ off cycle 1000 hrs. 40C 95% RH on~off cycle 500 hrs. 350C for 3 sec 16 times of rated wattage for 5 min. Specifications 20M R(2%R+0.05) R(1%R+0.05) R(1%R+0.05) R(1%R+0.05) R(5%R+0.05) R(3%R+0.05) R(0.5%R+0.05) Not flamed 02 of 03 http://www.token.com.tw/ rfq token.com.tw Version 2010 TOKEN Application Notes KNP-VE Wirewound Resistors Wire-wound Resistors Application Notes: When being used in AC circuits, some wirewound structures give inductance ingredients or parasitic capacity, so they may cause unusual phenomena such as oscillations etc. Quorum deviations of other components should be carefully taken into account for use. Application and Placement: Wire wound resistors use different gauges of wire as resistance elements. Sometimes the gauge is extremely thin (finer than a strand of human hair) and very susceptible to breakage in environments containing salts, ash, dust and corrosives. Avoid utilization in such environments. Do not install in dusty areas because the accumulation will cause shorts and poor conductance. How to Order KNP-VE Part Number: KNP-VE Rated Power (W) Resistance Value () Code 1R 100R 1K 3W 100R J P Resistance Tolerance (%) Code J K Resistance Tolerance 5% 10% Resistance Value 1 100 1000 Package Code TB P Package Taping Box Bulk Back to 1st Page - Wirewound Resistors (KNP-VE) Version 2010 http://www.token.com.tw/ rfq token.com.tw 03 of 03 |
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