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COSEL Power Supply, Noise Filter 2025 Product Catalog
TUNS-seriesDeratingOutput voltage derating curve!Use the power modules with conduction cooling (e.g. heat dissipation from the aluminum base plate to the attached heat sink).Below shows the derating curves with respect to the aluminum base plate temperature. Note that operation within the hatched areas willcause a signifi cant level of ripple and ripple noise.!Please measure the temperature on the aluminum base plate edge side when you cannot measure the temperature of the center part ofthe aluminum base plate.In this case, please take 5deg temperature margin from the derating characteristics shown in below. Please reducethe temperature fl uctuation range as much as possible when the up and down of the temperature are frequently generated. Contactus for more information on cooling methods.? TUNS50F/100FLoad Factor [%]1001(75)501TUNS50F/TUNS100F0(85)-40-20020406080100Aluminum base plate temperature Tc [C]TUNS50FTcMeasuring pointTUNS100F? TUNS300F? TUNS500FTUNSLoad Factor [%]10011TUNS300F500-40-20020406080100Aluminum base plate temperature Tc [C]Load Factor [%]100(60)501TUNS500F122TUNS500F28,TUNS500F480(75)-40-20020406080100Aluminum base plate temperature Tc [C]12? TUNS700FLoad Factor [%]100(75)50(40)1TUNS700F122TUNS700F28,TUNS700F4810(50) (70)-40 -20 0 20 40 60 80 100Aluminum base plate temperature Tc [C]2TcMeasuring pointTUNS300F / TUNS500F / TUNS700F? TUNS1200F TcLoad Factor [%]100312(75)(65)(60)501TUNS1200F122TUNS1200F28,TUNS1200F48 (Vin = 85～170VAC),TUNS1200F653TUNS1200F28,TUNS1200F48 (Vin = 170～305VAC)0(85)-40-20020406080100Aluminum base plate temperature Tc [C]Measuring pointTUNS1200FTUNS-16? 568 ?
