title: COSEL Power Supply, Noise Filter 2025 Product Catalog

Summary

COSEL Power Supply, Noise Filter 2025 Product Catalog

DC-DC Converters PCB Mount TypeInstruction ManualTable 2.1 Recommended fuse (Normal-blow type)ModelVinMU1R5MU3MU6MU1052.0A3.15A5.0A6.3A121.6A2.0A2.5A3.15A241.0A1.6A2.0A2.5A480.8A1.0A1.6A2.0A(2) External capacitor on the input side!Basically, MU series does not need any external capacitor.Adding a capacitor Ci near the input pin terminal and reduce reflected input noise from a converter.Please connect the capacitor as needed.!When you use a capacitor Ci, please use the one with high frequencyand good temperature characteristics.!If the power supply is to be turned ON/OFF directly with a switch,inductance from the input line will induce a surge voltage severaltimes that of the input voltage and it may damage the power supply.Make sure that the surge is absorbed, for example, by connectingan electrolytic capacitor between the input pins.!If an external fi lter containing L (inductance) is added to the inputline, or a wire from the input source to the DC-DC converter islong, not only the reflected input noise becomes large, but alsothe output of the converter may become unstable. In such case,connecting Ci to the input pin terminal is recommended.!If you use an aluminum electrolytic capacitor, please pay attentionto its ripple current rating.InputCiFuse+Vin-VinFig2.1 Connecting Example of an External Capacitor to the Input SideTable 2.2 Recommended Capacitance of an External Capacitor on the Input Side [ F]ModelVinMU1R5MU3MU6MU1050 ~ 2200 ~ 2200 ~ 4700 ~ 470120 ~ 1000 ~ 1000 ~ 2200 ~ 220240 ~ 470 ~ 470 ~ 1000 ~ 100480 ~ 220 ~ 220 ~ 470 ~ 47*Please adjust the capacitance in accordance with a degree of theeffect you want to achieve.(3) Reverse input voltage protection!If a reverse polarity voltage is applied to the input pin terminal, thepower supply will fail. If there is a possibility that a reverse polarityvoltage is applied, connect a protection circuit externally as describedbelow.InputFuseSchottky BarrierDiode+Vin-VinFig2.2 Reverse Input Voltage Protection2.2 Wiring Output Pin!If you want to further reduce the output ripple noise, connect anelectrolytic capacitor or a ceramic capacitor Co to the output pinterminal as shown below.+Vout+VoutCoLoadCoLoadCOMCoLoad-Vout-Vout(a) Single Output(b) Dual OutputFig.2.3 Connecting Example of an External Capacitor to the Output SideTable 2.3 Recommended Capacitance of External Capacitor on the Output Side [ F]ModelVoutMU1R5MU3MU6MU103.30 ~ 2200 ~ 2200 ~ 2200 ~ 22050 ~ 2200 ~ 2200 ~ 2200 ~ 220120 ~ 1000 ~ 1000 ~ 1000 ~ 100150 ~ 1000 ~ 1000 ~ 1000 ~ 100±120 ~ 1000 ~ 1000 ~ 1000 ~ 100±150 ~ 1000 ~ 1000 ~ 1000 ~ 100*If you use a ceramic capacitor, keep the capacitance within therage between about 0.1 to 22uF.*Please adjust the capacitance in light of the effect you want toachieve.*If you need to use an external capacitor whose capacitance exceedsthe range provided in Table 2.3, please contact us.!If the distance between the output and the load is long and thereforenoise is created on the load side, connect a capacitor externallyto the load as shown below.Input+Vin-Vin+Vout-VoutFig2.4 Connecting ExampleLoadMUS . MUW-24