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 Input Voltage Number of Outputs Mounting Type Package Type Length Width Depth Ripple And Noise Load Regulation Weight
RS Stock No. 144-6267
BrandRS PRO
MYR173.77
Each
units
15V dc - 1A 15W 264 V ac, 370 V dc 1 Chassis Mount Encapsulated 96.1mm 54mm 31mm - - 135g
RS Stock No. 144-6274
BrandRS PRO
MYR363.95
Each
units
15V dc - 2.666A 40W 264 V ac, 370 V dc 1 Chassis Mount Encapsulated 135mm 70mm 33.5mm - - 310g
RS Stock No. 161-8298
BrandRS PRO
MYR114.89
Each
units
15V dc - - 150W 170 264 V ac, 85 132 V ac 1 Chassis Mount Enclosed 99mm 82mm 30mm - - 480g
RS Stock No. 181-2144
BrandRS PRO
MYR367.61
1 Tube of 13
Tube(s)
24V dc - 210mA 5W 100 370 V dc, 85 264 V ac 1 PCB Mount Encapsulated 37mm 24.5mm 18mm - - 25g
RS Stock No. 161-8299
BrandRS PRO
MYR96.93
Each
units
24V dc - 6.5A 156W 170 264 V ac, 85 132 V ac 1 Chassis Mount Enclosed 159mm 97mm 30mm - - 480g
RS Stock No. 751-1428
BrandRS PRO
MYR212.65
Each
units
15V dc - 2A 30W 85 265V ac 1 PCB Mount Enclosed 89mm 63.5mm 25mm - - 250g
RS Stock No. 144-6266
BrandRS PRO
MYR173.75
Each
units
12V dc - 1.25A 15W 264 V ac, 370 V dc 1 Chassis Mount Encapsulated 96.1mm 54mm 31mm - - 135g
RS Stock No. 771-9436
BrandRS PRO
MYR171.22
Each
units
24V dc - 625mA 15W 120 375 V dc, 85 265 V ac 1 PCB Mount Enclosed 76.2mm 50.8mm 22.8mm - - 160g
RS Stock No. 161-8295
BrandRS PRO
MYR92.90
Each
units
36V dc - 2.8A 101W 85 264V ac 1 Chassis Mount Enclosed 129mm 97mm 30mm - - 340g
RS Stock No. 181-2109
BrandRS PRO
MYR23.69
Each
units
5V dc - 600mA 3W 70 420 V dc, 85 305 V ac 1 PCB Mount Open Frame 35mm 11mm 18mm - - 6g
RS Stock No. 124-4714
BrandRS PRO
MYR179.21
Each
units
48V dc - 1.25A 60W 100 230V ac 1 Panel Mount Open Frame 101.6mm 50.8mm 29mm - - -
RS Stock No. 771-9417
BrandRS PRO
MYR52.79
Each
units
15V dc - 133mA 2W 120 430 V dc, 85 305 V ac 1 PCB Mount Encapsulated 33.7mm 22.2mm 18mm - - 20g
RS Stock No. 711-2627
BrandRS PRO
MYR214.62
Each
units
24V dc - 1.5A 36W 88 264V ac 1 Chassis Mount Enclosed 78mm 51mm 28mm - - 180g
RS Stock No. 161-8241
BrandRS PRO
MYR859.39
Each
units
36V dc - 17.5A 630W 90 264V ac 1 Chassis Mount Enclosed 218mm 116.5mm 41mm - - -
RS Stock No. 161-8238
BrandRS PRO
MYR740.61
Each
units
48V dc - 10.5A 504W 88 264V ac 1 Chassis Mount Enclosed 183mm 120mm 83.5mm - - -
RS Stock No. 161-8227
BrandRS PRO
MYR335.77
Each
units
48V dc - 5A 240W 85 264V ac 1 Chassis Mount Enclosed 199mm 99mm 50mm - - -
RS Stock No. 181-3264
BrandRS PRO
MYR176.95
Each
units
- - - - - - - - - - - - - -
RS Stock No. 181-2201
BrandRS PRO
MYR32.14
Each
units
9V dc - 560mA 5W 100 370 V dc, 85 264 V ac 1 PCB Mount Encapsulated 37mm 24.5mm 18mm - - 25g
RS Stock No. 181-2134
BrandRS PRO
MYR332.48
1 Tube of 13
Tube(s)
9V dc - 330mA 3W 100 370 V dc, 85 264 V ac 1 PCB Mount Encapsulated 37mm 24.5mm 18mm - - 25g
RS Stock No. 144-6286
BrandRS PRO
MYR120.13
Each
units
24V dc - 625mA 15W 264 V ac, 370 V dc 1 PCB Mount Encapsulated 70mm 48mm 23.5mm - - 85g
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