Ceramic Wirewound High Power Resistor

Ceramic Wirewound High Power Resistor Products Coated High Power Ceramic Tube Resistors Features Good overload and heat durability capacity, the use life is longer than the others. The resistors surface is coated in green. Operating ambient temperature :-55°C +275°C. Resistance tolerance : ±5%,±10%.Part NO Power L1±2 L2±3 L3±3 L4±3 H1±1 H2±2 S±0.5 F±0.5 W±1 T±0.5 Resistance Range HPR25B 25W 40 60 75 100 20 50 5.0 3.5 13.0 5.0 0R22 4K7 HPR50B 50W 82 100 114 140 30 58 6.0 5.0 14.0 6.0 0R22 10K HPR100 100W 132 150 174 200 30 58 6.0 5.0 14.0 6.0 0R22 15K HPR150 150W 162 180 194 220 30 58 6.0 5.0 14.0 6.0 0R33 18K HPR200 200W 207 225 240 265 30 58 6.0 5.0 14.0 6.0 0R33 22K HPR250 250W 292 310 324 350 30 58 6.0 5.0 14.0 6.0 0R36 24K HPR300 300W 258 270 285 328 41 85 7.8 6.0 23.0 6.0 0R33 27K HPR400 400W 322 344 360 406 41 85 7.8 6.0 23.0 6.0 0R33 30K HPR500 500W 322 344 355 406 51 95 7.8 6.0 26.0 8.5 0R33 33K HPRA00 1000W 290 315 325 375 71 110 10.0 8.0 32.0 8.5 0R33 36K HPRA50 1500W 405 420 435 505 71 110 10.0 8.0 32.0 8.5 0R33 39K HPRB00 2000W 495 525 540 610 71 110 10.0 8.0 32.0 8.5 0R33 43K Test ItemTest ConditionPerformance Temperature Coefficient The resistance value at normal temperature and normal temperature added 100°C, calculate per °C resistance value change rate. ±350ppm/°C Short Time overload 10×rated voltage or Max. overload voltage(get the lower) for 5 seconds. R≤±(2%R0+0.05Ω) Resistance to soldering Heat Immerge into the 350±10°C tin stove for 2 3seconds. R≤±(1% R0+0.05Ω) Solderability Immerge into the 245±3°C tin stove for 2 3seconds. The soldering area is over 95% Load life in heat Overload rated voltage or Max. working voltage(get the lower) for 1000 hours(1.5hours on and 0.5 hours off) at the 70±2°C. . R≤±(5% R0+0.05Ω) Nonflammability Respectively load AC voltage by5,10,16times rated power for 5 minutes. No visible flame Note: We can accord to customer’s requirements to customize the specification and dimension, and produce multiple resistance value of one ceramic tube or cancel the fixed plank.