KNP WILLOW | Alldatasheet
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DEDICATION TO EXCELLENCE Rev O 4/4/01 WIREWOUND RESISTORS FLAME-PROOF CERAMIC CORE: 75% ALUMINA LEAD: TIN PLATED COPPER CAP: TIN PLATED STEEL CAP COATING: SILICON WIRE: Cu-Ni OR Ni-Cr WIRE LH D d in. mm .024 .059 .138 .157 .217 .256 .335 .354 .433 .590 .709 .984 1.063 0.6 1.5 3.5 4.0 5.5 6.5 8.5 9.0 11.0 15.0 18.0 25.0 27.0 1.575 40.0 .020 0.5 .002 0.05 .031 0.8 How to Order Resistance Tolerance T300KNP 1RO Resistance Value Temperature Coefficient Type Sample Part Number 1.693 43.0 ± 5% Wattage TEMPERATURE COEFFICIENT -30°C to 200°C ± 300PPM/°C Resistance Tolerance ± 5 Note: Resistance up to 27 maximum for Non-Inductive type Lower or higher resistance values other than the list are also available TYPE RATED WATTS Resistance range KNP-1/2W KNP-1W KNP-2W KNP-3W KNP-5W KNP-7W KNP-8W KNP-10W TYPE KNP-1/2W KNP-1W KNP-2W KNP-3W KNP-5W KNP-7W KNP-8W KNP-10W DIMENSIONS (mm) D ±0.5mm L ±1.5mm H(MIN) d ±0.05 3.5 4.0 5.5 5.5 6.5 8.5 8.5 8.5 0.60 0.8 0.8 0.8 0.8 0.8 0.8 0.8 1/2W 10W 0.1 - 240R 0.1 - 470R 0.1 - 820R 0.1 - 820R 0.1 - 1.3K 0.1 - 3.3K 0.1 - 2K Dimensional Correlation Subject to change without notice 0.1 - 4.7K WILLOW TECHNOLOGIES LTD. SHAWLANDS COURT, NEWCHAPEL ROAD LINGFIELD, SURREY, RH7 6BL, ENGLAND Tel. + 44 (0) 1342 835234 Fax. + 44 (0) 1342 834306 E-mail rob@willow.co.uk Website http://www.willow.co.uk
Characteristics Condition Spec. Resistance Temp. Coeff. Moisture-proof Load Life Short Time Over Load Rate Load Voltage Durability Insulation Resistance Temp Cycle Load Life Incombustibility -30°C ~ +200°C 5 times of rated wattage for 5 sec. Rate watt 30 min. 500V AC 1 min. 500V megger -30°C ~ 85°C 5 cycles 40°C 95% RH on-off cycle 500 hrs. 40°C 95% RH on-off cycle 500 hrs. DERATING CURVETEMPERATURE RISE AT 25°C Rated Load (%) Ambient Temp (°C) Rated Load (%) Temperature Rise (°C) 100 -20 0 40 80 120 160 200 250 200 150 100 0 20 40 60 100 REV O 4/4/01Subject to change without notice 6 times of rated wattage for 5 min. PACKAGING: PIECES PER REEL: KNP 1/2W AND 1W KNP 2W, 3W AND 5W KNP 7W 2500 1000 500 ± 300 ppm/°C ± 2% ± 1% not changed 500 M ± 1% ± 5% ± 3% not flamed /G01 240 280 275°C 70°C-30°C 80 120 1/2W 10W TAPE AND REEL BULK: KNP 8W AND 10W 100