tel : 82 - 32 - 817 - 4325 r esistors a nd fax : 82 - 32 - 817 - 4329 r esistive a pplications website : http://www.raraohm.com email : sg @raraohm.com rqa ceramic encased wire wound resistors general specifications model wattage rating resistance range( ) resistance tolerance glass fiber core (gc) ceramic core (cc) metal oxide film (mo) rqa 02 2w 0.1~200 0.1~500 10~13k r 1 : 10% r>1 : 5% rqa 03 3w 0.1~300 0.1~1.0k 10~22k rqa 05 5w 0.1~500 0.1~3.0k 10~27k rqa 07 7 w 0.2~1.0k 0.3~5.0k 10~56k rqa 10 10w 0.5~1.5k 0.3~10k 10~75k rqa 15 15w 1.0~1.5k 0.5~12k 10~100k rqa 20 20w 1.0~2.0k 0.5~15k 10~100k characteristics values in [ ] mean change in after test temperature range - 25 ~155 insulation resistance dc500v, 20m minimum dielectric withstanding voltage ac 1500v for 1minute temp. coefficient gc, cc : 260ppm/ ; mo : 400ppm/ short time overload r [2%+0.05 ] 10 times rated power for 5 sec. moisture resistance r [3 %+0.05 ] dc 100v, 40 95% rh, 500h thermal shock r [2%+0.05 ] power rating 30 min . , - 25 15min . moisture load life r [3 %+0.05 ] 40 95% rh, 10% power rating 90min . - on , 30min. - off, 500h load life r [5%+0.05 ] power rating 90min . - on, 30min . - off , 500h solder ability 75% coverage minimum note : applied voltage : ac rms voltage dimensions power r ating(w) dimensions(mm) l w h d 0.1 2 18 +1.2 6. 3 +1.0 6.3 +1.0 0.8 3 22+1.5 8.0+1.0 8.0+1.0 0.8 5 22+1.5 9.5+1.0 9.5 +1.0 0.8 7 35+1.5 9.5+1.0 9.5 +1.0 0.8 10 47 +1.5 9.5+1.0 9. 5 +1.0 0.8 15 47 +1.5 12.5+1.2 12.5+1.2 0.8 20 63+2.0 12.5+1.2 12.5+1.2 0.8
tel : 82 - 32 - 817 - 4325 r esistors a nd fax : 82 - 32 - 817 - 4329 r esistive a pplications website : http://www.raraohm.com email : sg@raraohm.com june 14, 2012 surface temperature increase versus power load derating curve ordering procedure example
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