page 1 of 2 the information contained herein does not form part of a contract and is subject to change without notice. arcol operate a policy of continual product development, therefore, specifcations may change. it is the responsibility of the customer to ensure that the component selected from our range is suitable for the intended application. if in doubt please ask arcol. arcol uk limited, threemilestone ind. estate, truro, cornwall, tr4 9lg, uk. t +44 (0) 1872 277431 f +44 (0) 1872 222002 e sales @ arcolresistors.com 12/14.08 hs aluminium housed resistors manufactured in line with the requirements of mil 18546 and iec 115, designed for direct heatsink mounting with thermal compound to achieve maximum performance. ? high power to volume ? wound to maximise high pulse capability ? values from r005 to 100k ? custom designs welcome ? rohs compliant characteristics tolerance (code): tolerance for low values: temperature coeffcients: insulation resistance (dry): power dissipation: ohmic values: low inductive (nhs): nhs ohmic value: nhs working volts: standard 5% (j) and 10% (k). also available 1% (f), 2% (g) and 3% (h) typically r05 5% r047 10% typical values < 1k 100ppm std. > 1k 25ppm std. for lower tcrs please contact arcol 10,000 m minimum at high ambient temperature dissipation derates linearly to zero at 200c from r005 to 100k depending on wattage size specify by adding n before hs series code, e.g. nhs50 divide standard hs maximum value by 4 divide standard hs maximum working voltage by 1.414 ordering procedure standard resistor . to specify standard: series, watts, ohmic value, tolerance code, e.g.: hs25 2r2 j non inductive resistor . to specify add n, e.g.: nhs100 10r j heat dissipation heat dissipation: whilst the use of proprietary heat sinks with lower thermal resistances is acceptable, uprating is not recommended. for maximum heat transfer it is recommended that a heat sink compound be applied between the resistor base and heat sink chassis mounting surface. it is essential that the maximum hot spot temperature of 200c is not exceeded, therefore, the resistor must be mounted on a heat sink of correct thermal resistance for the power being dissipated. temp. rise & power dissipation surface temperature of resistor related to power dissipation. the resistor is standard heatsink mounted using a proprietary heatsink compound. hs300 hs250 hs200 hs150 hs50 HS75 hs25 hs15 hs10 hs100 0 20 50 75 100 150 200 250 300 power dissi pa tion (w a tts) 200 100 5 s u r f ac e t e m p e r a t u r e r i s e ( ? c ) ww w.arcolresistors.com for more information and ordering, please consult
page 2 of 2 12/14.08 hs aluminium housed resistors electrical specifcations size style mil-r 18546 power rating on std. heatsink @25c watts with no heatsink @25c resis - tance range limiting element voltage voltage proof ac peak voltage proof ac rms. approx weight gms typical surface rise hs mounted standard heatsink cm 2 thickness mm hs10 re 60 10 5 r005-10k 160 1400 1000 4 5.8 415 1 hs15 re 65 15 7 r005-10k 265 1400 1000 7 5.1 415 1 hs25 re 70 25 9 r005-36k 550 3500 2500 14 4.2 535 1 hs50 re 75 50 14 r01-86k 1250 3500 2500 32 3.0 535 1 HS75 75 24 r01-50k 1400 6363 4500 85 1.1 995 3 hs100 100 30 r01-70k 1900 6363 4500 115 1.0 995 3 hs150 150 45 r01-100k 2500 6363 4500 175 1.0 995 3 hs200 200 50 r01-50k 1900 7070 5000 475 0.7 3750 3 hs250 250 55 r01-50k 2200 7070 5000 600 0.6 4765 3 hs300 300 60 r01-68k 2500 7070 5000 700 0.6 5780 3 hs10-hs300 standard resistor hs 200, 250, 300 6mm a g j l f b ? 2.0 0.25 2. 1 0.1 hs 10, 15, 25, 50 d h k c hs 75, 100, 150 = ? 3.2 max. 3.0 0.1 * = centre hole in 150 wa tts onl y e b f j l a = = b f e e m j l a d h k c d h k c g g dimensions (mm) size a max b max c max d max e max f0.3 g0.3 h max j max k max l 0.25* m max hs10 16.5 30.0 8.8 8.5 15.9 11.3 12.4 4.5 2.4 1.8 2.4 hs15 21.0 36.5 11.0 11.2 19.9 14.3 15.9 5.5 2.8 1.8 2.4 hs25 28.0 51.0 14.8 14.2 27.3 18.3 19.8 7.7 5.2 2.6 3.2 hs50 28.0 72.5 14.8 14.2 49.1 39.7 21.4 8.4 5.2 2.6 3.2 HS75 47.5 72.0 24.1 27.3 48.7 29.0 37.0 11.8 10.4 3.7 4.4 hs100 47.5 88.0 24.1 27.3 65.2 35.0 37.0 11.8 15.4 3.7 4.4 hs150 47.5 121.0 24.1 27.3 97.7 58.0 37.0 11.8 20.4 3.7 4.4 hs200 72.5 145.7 41.8 45.5 89.7 70.0 57.2 20.5 10.4 5.5 5.1 103.4 hs250 72.5 167.0 41.8 45.5 109.7 89.0 57.2 20.5 10.4 5.5 5.1 122.4 hs300 72.5 184.4 41.8 45.5 127.7 104.0 59.0 20.5 12.4 5.5 6.6 141.4 * hs200-hs300 watts is 0.45
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