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COSEL Power Supply, Noise Filter 2025 Product Catalog
CQHS-seriesDerating!It is necessary to note the thermal fatigue life by power cycle.Please reduce the temperature fl uctuation range as much as possible whenthe up and down of the temperature are frequently generated. Contact us for more information on cooling methods.?CQHS250!Use with the convection cooling or the forced air cooling. Make sure the temperatures at temperature measurement locations shown beloware on or under the derating curve. Ambient temperature must be kept at 85℃or under.100Load factor[%]806040200-40 -20 0 20 40 60 80 100 120Temperature of measurement location[C]Temperature of measurement location!For option“B”which is used with the convection cooling, forced air cooling or conduction cooling, use the temperature measurement locationas shown in below.1Vin=DC36-60VCQHS2504850100Load factor[%]80CQHS25048326040Vin : 36 - 60V200-40-200204060(75) 80 (85)100Aluminum base plate temperature Tc [C]Aluminum base plateTc : Measuring point2Vin=DC60-76V100Load factor[%]806040Vin : 60 - 76V(25)200-40-200204060(65) 80(95 ) 100Aluminum base plate temperature Tc [C]CQHS-10
