title: COSEL Power Supply, Noise Filter 2025 Product Catalog

Summary

COSEL Power Supply, Noise Filter 2025 Product Catalog

AC-DC Power Supplies Bus Converter . Power Module TypeTUNS50F, TUNS100FInstruction Manual4 Series and ParallelOperation4.1 Series operation!Series operation is available by connecting the outputs of two ormore power supplies as shown below. Output current in seriesconnection should be lower than the lowest rated current in eachunit.(a)(b)PowerSupplyPowerSupplyPowerSupplyPowerSupplyLoadLoadLoadFig. 4.1 Examples of series operation4.2 Parallel operation!Parallel operation is not possible.!Redundancy operation is available by wiring as shown below.+S+VOUT-VOUT-S+S+VOUT-VOUT-SII1 I32Load+S, -S : TUNS100FFig. 4.2 Example of Redundancy Operation!Even a slight difference in output voltage can affect the balancebetween the values of I1 and I2.Please make sure that the value of I3 does not exceed the ratedcurrent of a power supply.I3the rated current value5 Cleaning!Clean the product with a brush. Prevent liquid from getting intothe product.Do not soak the product into liquid.!Do not stick solvent to a name plate or a resin case.(If solvent sticks to a name plate or a resin case, it will causeto change the color of the case or to fade letters on name plateaway.)!After cleaning, dry them enough.6 Lifetime expectancy depends onstress by temperature difference!Regarding lifetime expectancy design of solder joint, followingcontents must be considered.It must be careful that the soldering joint is stressed by temperaturerise and down which is occurred by self-heating and ambienttemperature change.The stress is accelerated by thermal-cycling, therefore the temperaturedifference should be minimized as much as possible iftemperature rise and down is occurred frequently.!Product lifetime expectancy depends on the aluminum base platecentral temperature difference (DTc) and number of cycling in aday is shown in Fig.6.1.If the aluminum base plate center part temperature changes frequentlyby changing output load factor etc., the above the lifetimeexpectancy design should be applied as well.Please contact us for details.Lifetime expectancy [years]1051time ON/OFF /1day2times ON/OFF /1day3times ON/OFF /1day4times ON/OFF /1day5times ON/OFF /1day025 30 35 40 45 50 55 60 65 70The aluminum base plate central temperature differenceDTc [C]Fig.6.1 Lifetime expectancy against rise/fall temperature differenceApplication manuals available at our website.Recommended external components are also introduced for yourreference.TUNS-22