Embedded Switch Mode Power Supplies (SMPS)

A switch mode power supply is a type of electronic circuit used to convert power. They are also known as switching-mode power supplies or SMPS for short. The typical topology of an SMPS is AC to DC conversion, although users may find other switches that feature an output of DC to DC voltage.



How do SMPS work?


For the power supply to transform its input voltage into an output voltage, the switch will turn on and off with high frequency. The inductors or capacitors within the device will then regulate the power to the device. This continuous switching of the capacitor maintains the voltage at the desired level and provides excellent efficiency.



How do SMPS convert AC to DC?


In the case of AC mains usage, the input voltage will be filtered the same way with a capacitor or inductor to regulate the power and give you the DC output.



Which SMPS is best for a desktop PC?


The power supply unit you use in your PC is important as it ultimately determines what other components you can use within it and the output in performance you get at the end. For high-end gaming PC builds you should aim for an efficiency rating of >80%. The higher the rating, the less electricity it consumes. The less electricity used means easier heat dissipation which keeps the PC cool and performing optimally.


Switching power supply units with higher efficiency and lower levels of heat dissipation are typically compact in nature, making them ideal for projects with limited space.



Where are SMPS used?



  • PC/Laptops


  • Mobile phone chargers


  • Security systems such as CCTV Cameras


  • Machine tool industries


...
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Description Price Output Voltage Series Output Current Power Rating Number of Outputs Input Voltage Mounting Type Package Type Length Width Depth Weight Efficiency Maximum Temperature
RS Stock No. 100-2670
Mfr. Part No.RACG100-24S
BrandRecom
£50.15
Each
Units
24V dc - - 100W 1 90 → 264V ac Panel Mount Enclosed 129mm 98mm 38mm - 88% +60°C
RS Stock No. 100-2672
Mfr. Part No.RACG150-24S
BrandRecom
£57.90
Each
Units
24V dc - - 150W 1 90 → 264V ac Panel Mount Enclosed 160mm 98mm 38mm - 88% +70°C
RS Stock No. 877-1808
Mfr. Part No.RACM100-12S
BrandRecom
£113.27
Each
Units
12V dc - 8.34A 100W 1 85 → 264V ac Chassis Mount Enclosed 91.4mm 62mm 39.2mm 210g - +85°C
RS Stock No. 877-1810
Mfr. Part No.RACM100-24S
BrandRecom
£113.27
Each
Units
24V dc - 4.17A 100W 1 85 → 264V ac Chassis Mount Enclosed 91.4mm 62mm 39.2mm 210g - +85°C
RS Stock No. 903-9921
Mfr. Part No.RACM40-24S
BrandRecom
£63.92
Each
Units
24V dc - 1.67A 40W 1 90 → 264V ac Chassis Mount Enclosed 89mm 63.5mm 27mm 280g - +70°C
RS Stock No. 877-1823
Mfr. Part No.RACM150-12S/F
BrandRecom
£86.58
Each
Units
12V dc - 12.5A 150W 1 85 → 264V ac Chassis Mount Enclosed 116.8mm 62mm 49.2mm 270g - +80°C
RS Stock No. 100-2671
Mfr. Part No.RACG150-12S
BrandRecom
£30.20
Each
Units
12V dc - - 150W 1 90 → 264V ac Panel Mount Enclosed 160mm 98mm 38mm - 88% +70°C
RS Stock No. 877-1817
Mfr. Part No.RACM100-15S
BrandRecom
£113.27
Each
Units
15V dc - 6.67A 100W 1 85 → 264V ac Chassis Mount Enclosed 91.4mm 62mm 39.2mm 210g - +85°C
RS Stock No. 877-1820
Mfr. Part No.RACM150-24S/F
BrandRecom
£126.41
Each
Units
24V dc - 6.25A 150W 1 85 → 264V ac Chassis Mount Enclosed 116.8mm 62mm 49.2mm 270g - +80°C
RS Stock No. 903-9931
Mfr. Part No.RACM65-24S
BrandRecom
£74.67
Each
Units
24V dc - 2.71A 0.15W 1 85 → 264V ac Chassis Mount Enclosed 91.4mm 60.5mm 33.3mm 172g - +85°C
RS Stock No. 903-9934
Mfr. Part No.RACM65-12S
BrandRecom
£74.67
Each
Units
12V dc - 5.42A 0.15W 1 85 → 264V ac Chassis Mount Enclosed 91.4mm 60.5mm 33.3mm 172g - +85°C
RS Stock No. 877-1814
Mfr. Part No.RACM100-48S
BrandRecom
£113.27
Each
Units
48V dc - 2.09A 100W 1 85 → 264V ac Chassis Mount Enclosed 91.4mm 62mm 39.2mm 210g - +85°C
RS Stock No. 903-9925
Mfr. Part No.RACM40-48S
BrandRecom
£61.01
Each
Units
48V dc - 840mA 0.15W 1 85 → 264V ac Chassis Mount Enclosed 91.4mm 60.5mm 33.3mm 172g - +85°C
RS Stock No. 903-9928
Mfr. Part No.RACM40-15S
BrandRecom
£43.96
Each
Units
15V dc - 2.666A 40W 1 90 → 264V ac Chassis Mount Enclosed 89mm 63.5mm 27mm 280g - +70°C
RS Stock No. 877-1826
Mfr. Part No.RACM150-15S/F
BrandRecom
£138.32
Each
Units
15V dc - 10A 150W 1 85 → 264V ac Chassis Mount Enclosed 116.8mm 62mm 49.2mm 270g - +80°C
RS Stock No. 903-9937
Mfr. Part No.RACM65-15S
BrandRecom
£74.67
Each
Units
15V dc - 4.33A 0.15W 1 85 → 264V ac Chassis Mount Enclosed 91.4mm 60.5mm 33.3mm 172g - +85°C
RS Stock No. 136-9208
Mfr. Part No.RAC150-12SG/ENC
BrandRecom
£49.54
Each
Units
12V dc - 12.5A 150W 1 90 → 264V ac Chassis Mount, Panel Mount Enclosed 105mm 62mm 35mm 265g 91% +70°C
RS Stock No. 903-9919
Mfr. Part No.RACM40-12S
BrandRecom
£64.46
Each
Units
12V dc - 3.333A 40W 1 90 → 264V ac Chassis Mount Enclosed 89mm 63.5mm 27mm 280g - +70°C
RS Stock No. 877-1839
Mfr. Part No.RACM150-48S/F
BrandRecom
£138.32
Each
Units
48V dc - 3.13A 150W 1 85 → 264V ac Chassis Mount Enclosed 116.8mm 62mm 49.2mm 270g - +80°C
RS Stock No. 903-9940
Mfr. Part No.RACM65-48S
BrandRecom
£71.12
Each
Units
48V dc - 1.35A 0.15W 1 85 → 264V ac Chassis Mount Enclosed 91.4mm 60.5mm 33.3mm 172g - +85°C