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UAL Datasheet(PDF) 1 Page - Willow Technologies Ltd |
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UAL Datasheet(HTML) 1 Page - Willow Technologies Ltd |
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1 / 4 page  rev.03/2006A Power Rating 5 to 300Watts All Welded Construction Resistances from 0.005 to 250kOhms Tolerance to ±0.01% High Overload and Pulse Handling Low TCR: ± 20ppm/K Standard Four Terminal Versions Available • • • • • • • SPECIFICATIONS ForNon-InductiveWindings/inserttheletter“N”(i.e.UALN-25) PartNumber-Resistance-Tolerance-TCR(Ifnotstandard) Example:UAL-2510Ohm1% UAL-25-4T UAL-25-4 UAL-25-4TR UAL Series AluminumHousedWirewoundResistors Ordering Information Type MIL-R-39009 MIL-R-18546 Style PowerRating(W@25°C) Resistance Range1 Commercial MIL FreeAir UAL-5 RER-60/RE-60 7.5a 5a 4.5 0.01to22K UAL-10 RER-65/RE-65 12.5a 10a 7.5 0.01to47K UAL-25 RER-70/RE-70 25b 20b 12 0.01to90K UAL-50 RER-75/RE-75 50c 30c 20 0.01to250K UAL-100 RER-77/RE-77 100d 75d 40 0.01to50K UAL-180 - 180d - - 0.01to50K UAL-250 RER-80/RE-80 250d 120d 100 0.01to50K UAL-300 - 300e - 75 0.005to100K 1 Fornon-inductivewindings,dividemaximumresistanceby2 a HeatsinkRequired:0.040[1.0]Alum.Plate,129in2[832cm2]orequiv. b HeatsinkRequired:0.040[1.0]Alum.Plate,167in2[1077cm2]orequiv. c HeatsinkRequired:0.059[1.5]Alum.Plate,291in2[1877cm2]orequiv. d HeatsinkRequired:0.125[3.2]Alum.Plate,294in2[1896cm2]orequiv. e HeatsinkRequired:0.125[3.2]Alum.Plate,895in2[5780cm2]orequiv. Willow Technologies Ltd. Shawlands Court, Newchapel Road, Lingfield, Surrey, RH7 6BL, United Kingdom. + 44 (0) 1342 835234 + 44 (0) 1342 834306 info@willow.co.uk http://www.willow.co.uk |
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