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. 667-5789
BrandRS PRO
kr 159,72
Each
Units
5V dc - 1A 5W 110 → 370 V dc, 85 → 264 V ac 1 PCB Mount Encapsulated 50.8mm 25.4mm 15.16mm - - 35g
RS Stock No. 771-9379
BrandRS PRO
kr 89,43
Each
Units
5V dc - 500mA 3W 100 → 400 V dc, 85 → 264 V ac 1 PCB Mount Ultra-Miniature 35mm 24mm 11mm - - -
RS Stock No. 667-5773
BrandRS PRO
kr 129,71
Each
Units
12V dc - 250mA 3W 110 → 370 V dc, 85 → 264 V ac 1 PCB Mount Encapsulated 37mm 23mm 15mm - - 25g
RS Stock No. 771-9408
BrandRS PRO
kr 120,74
Each
Units
3.3V dc - 600mA 2W 120 → 430 V dc, 85 → 305 V ac 1 PCB Mount Encapsulated 33.7mm 22.2mm 18mm - - 20g
RS Stock No. 771-9366
BrandRS PRO
kr 73,98
Each
Units
12V dc - 83.3mA 1W 100 → 400 V dc, 85 → 264 V ac 1 PCB Mount Miniature 35mm 24mm 11mm - - -
RS Stock No. 771-9405
BrandRS PRO
kr 118,54
Each
Units
9V dc - 222mA 2W 120 → 430 V dc, 85 → 305 V ac 1 PCB Mount Encapsulated 33.7mm 22.2mm 18mm - - 20g
RS Stock No. 671-6691
BrandRS PRO
kr 206,08
Each
Units
5V dc - 2A 10W 120 → 370 V dc, 85 → 264 V ac 1 PCB Mount Encapsulated 53.5mm 28.5mm 19mm - - 50g
RS Stock No. 786-4738
BrandRS PRO
kr 124,82
Each
Units
9V dc - 560mA 5W 100 → 400 V dc, 85 → 264 V ac 1 PCB Mount Encapsulated 42mm 11mm 24mm - - 10g
RS Stock No. 786-4725
BrandRS PRO
kr 124,82
Each
Units
3.3V dc - 1A 3.3W 100 → 400 V dc, 85 → 264 V ac 1 PCB Mount Ultra-Miniature 42mm 11mm 24mm - - -
RS Stock No. 771-9391
BrandRS PRO
kr 111,27
Each
Units
12V dc - 83mA 1W 120 → 430 V dc, 85 → 305 V ac 1 PCB Mount Encapsulated 33.7mm 22.2mm 18mm - - 20g
RS Stock No. 819-3961
BrandRS PRO
kr 1 053,43
Each
Units
15V dc - 10.4A 156W 88 → 264V ac 1 Chassis Mount Enclosed 97mm 38mm 158mm - - 570g
RS Stock No. 771-9420
BrandRS PRO
kr 350,74
Each
Units
5V dc - 3A 15W 120 → 375 V dc, 85 → 265 V ac 1 PCB Mount Enclosed 76.2mm 50.8mm 22.8mm - - 160g
RS Stock No. 124-4713
BrandRS PRO
kr 313,06
Each
Units
32V dc - 1.87A 60W 100 → 230V ac 1 Panel Mount Open Frame 101.6mm 50.8mm 29mm - - -
RS Stock No. 144-6282
BrandRS PRO
kr 156,13
Each
Units
12V dc - 430mA 5W 264 V ac, 370 V dc 1 PCB Mount Encapsulated 53.8mm 28.8mm 19mm - - 43g
RS Stock No. 181-2137
BrandRS PRO
kr 707,37
1 Tube of 13
Tube(s)
15V dc - 200mA 3W 100 → 370 V dc, 85 → 264 V ac 1 PCB Mount Encapsulated 37mm 24.5mm 18mm - - 25g
RS Stock No. 144-6283
BrandRS PRO
kr 154,34
Each
Units
24V dc - 230mA 5.5W 264 V ac, 370 V dc 1 PCB Mount Encapsulated 53.8mm 28.8mm 19mm - - 43g
RS Stock No. 711-2636
BrandRS PRO
kr 555,13
Each
Units
24V dc - 2.5A 60W 88 → 264V ac 1 Chassis Mount Enclosed 98mm 82mm 35mm - - 310g
RS Stock No. 667-5760
BrandRS PRO
kr 131,40
Each
Units
5V dc - 600mA 3W 110 → 370 V dc, 85 → 264 V ac 1 PCB Mount Encapsulated 37mm 23mm 15mm - - 25g
RS Stock No. 181-2138
BrandRS PRO
kr 707,37
1 Tube of 13
Tube(s)
24V dc - 125mA 3W 100 → 370 V dc, 85 → 264 V ac 1 PCB Mount Encapsulated 37mm 24.5mm 18mm - - 25g
RS Stock No. 161-8222
BrandRS PRO
kr 558,52
Each
Units
36V dc - 5.6A 200W 120 → 370 V dc, 85 → 264 V ac 1 PCB Mount Enclosed 199mm 99mm 50mm - - -
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