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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Omschrijving Prijs Output Voltage Series Output Current Power Rating Number of Outputs Input Voltage Mounting Type Package Type Length Width Depth Weight Efficiency Maximum Temperature
RS-stocknr. 786-4738
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12,52 €
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9V dc - 560mA 5W 1 100 → 400 V dc, 85 → 264 V ac PCB Mount Encapsulated 42mm 11mm 24mm 10g 72% +85°C
RS-stocknr. 751-1421
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47,01 €
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24V dc - 1.25A 30W 1 85 → 265V ac PCB Mount Enclosed 89mm 63.5mm 25mm 250g - +71°C
RS-stocknr. 771-9366
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7,42 €
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Aantal stuks
12V dc - 83.3mA 1W 1 100 → 400 V dc, 85 → 264 V ac PCB Mount Miniature 35mm 24mm 11mm - 70% +85°C
RS-stocknr. 786-4744
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12,71 €
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Aantal stuks
24V dc - 210mA 5W 1 100 → 400 V dc, 85 → 264 V ac PCB Mount Encapsulated 42mm 11mm 24mm 10g 75% +85°C
RS-stocknr. 667-5786
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16,00 €
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12V dc - 420mA 5W 1 110 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 50.8mm 25.4mm 15.16mm 35g 76% +70°C
RS-stocknr. 667-5773
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13,01 €
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12V dc - 250mA 3W 1 110 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 37mm 23mm 15mm 25g 76% +70°C
RS-stocknr. 124-4709
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29,63 €
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12V dc - 5A 60W 1 100 → 230V ac Panel Mount Open Frame 101.6mm 50.8mm 29mm - 89% +50°C
RS-stocknr. 711-2627
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47,46 €
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24V dc - 1.5A 36W 1 88 → 264V ac Chassis Mount Enclosed 78mm 51mm 28mm 180g 87% +71°C
RS-stocknr. 771-9391
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11,16 €
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12V dc - 83mA 1W 1 120 → 430 V dc, 85 → 305 V ac PCB Mount Encapsulated 33.7mm 22.2mm 18mm 20g 73% +70°C
RS-stocknr. 771-9376
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8,95 €
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12V dc - 250mA 3W 1 100 → 400 V dc, 85 → 264 V ac PCB Mount Ultra-Miniature 35mm 24mm 11mm - 78% +85°C
RS-stocknr. 667-5764
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13,18 €
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9V dc - 330mA 3W 1 110 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 37mm 23mm 15mm 25g 74% +70°C
RS-stocknr. 771-9379
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8,97 €
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5V dc - 500mA 3W 1 100 → 400 V dc, 85 → 264 V ac PCB Mount Ultra-Miniature 35mm 24mm 11mm - 69% +85°C
RS-stocknr. 828-0131
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39,68 €
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12V dc - 1.5A 18W 1 100 → 240V ac Cable Enclosed 140mm 80mm 85mm >1kg >70(Min)% +40°C
RS-stocknr. 786-4729
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12,71 €
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5V dc - 1A 5W 1 100 → 400 V dc, 85 → 264 V ac PCB Mount Encapsulated 42mm 11mm 24mm 10g 70% +85°C
RS-stocknr. 771-9385
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8,77 €
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24V dc - 125mA 3W 1 100 → 400 V dc, 85 → 264 V ac PCB Mount Ultra-Miniature 35mm 24mm 11mm - 78% +85°C
RS-stocknr. 161-8252
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20,43 €
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12V dc - 4.5A 54W 1 127 → 370 V dc, 90 → 264 V ac Chassis Mount Open Frame 101.6mm 51mm 30mm - 83% +70°C
RS-stocknr. 711-2636
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55,68 €
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24V dc - 2.5A 60W 1 88 → 264V ac Chassis Mount Enclosed 98mm 82mm 35mm 310g 89% +71°C
RS-stocknr. 161-8284
FabrikantRS PRO
15,57 €
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5V dc - 14A 60W 1 100 → 240V ac Chassis Mount Enclosed 97mm 99mm 30mm 300g 84% +50°C
RS-stocknr. 786-4731
FabrikantRS PRO
12,52 €
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Aantal stuks
12V dc - 420mA 5W 1 100 → 400 V dc, 85 → 264 V ac PCB Mount Encapsulated 42mm 11mm 24mm 10g 74% +85°C
RS-stocknr. 161-8253
FabrikantRS PRO
20,43 €
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15V dc - 3.6A 54W 1 127 → 370 V dc, 90 → 264 V ac Chassis Mount Open Frame 101.6mm 51mm 30mm - 84% +70°C
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