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. 711-2611
BrandRS PRO
PHP2,806.92
Each
units
5V dc - 6A 30W 1 88 → 264V ac Chassis Mount Enclosed 78mm 51mm 28mm 180g 82% +71°C
RS Stock No. 711-2624
BrandRS PRO
PHP3,294.07
Each
units
12V dc - 5A 60W 1 88 → 264V ac Chassis Mount Enclosed 98mm 82mm 35mm 310g 88% +71°C
RS Stock No. 667-5789
BrandRS PRO
PHP948.61
Each
units
5V dc - 1A 5W 1 110 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 50.8mm 25.4mm 15.16mm 35g 72% +70°C
RS Stock No. 771-9382
BrandRS PRO
PHP659.90
Each
units
9V dc - 111mA 1W 1 120 → 430 V dc, 85 → 305 V ac PCB Mount Encapsulated 33.7mm 22.2mm 18mm 20g 72% +70°C
RS Stock No. 771-9379
BrandRS PRO
PHP529.95
Each
units
5V dc - 500mA 3W 1 100 → 400 V dc, 85 → 264 V ac PCB Mount Ultra-Miniature 35mm 24mm 11mm - 69% +85°C
RS Stock No. 124-4713
BrandRS PRO
PHP1,921.35
Each
units
32V dc - 1.87A 60W 1 100 → 230V ac Panel Mount Open Frame 101.6mm 50.8mm 29mm - 89% +50°C
RS Stock No. 751-1412
BrandRS PRO
PHP2,403.82
Each
units
24V dc - 833mA 20W 1 120 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 53.5mm 28.5mm 23.5mm 50g 83% +70°C
RS Stock No. 671-6717
BrandRS PRO
PHP1,221.76
Each
units
24V dc - 450mA 10W 1 120 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 53.5mm 28.5mm 19mm 50g - +70°C
RS Stock No. 711-2614
BrandRS PRO
PHP2,806.92
Each
units
12V dc - 3A 36W 1 88 → 264V ac Chassis Mount Enclosed 78mm 51mm 28mm 180g 86% +71°C
RS Stock No. 771-9420
BrandRS PRO
PHP2,080.87
Each
units
5V dc - 3A 15W 1 120 → 375 V dc, 85 → 265 V ac PCB Mount Enclosed 76.2mm 50.8mm 22.8mm 160g 76% +71°C
RS Stock No. 751-1415
BrandRS PRO
PHP2,781.24
Each
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5V dc - 6A 30W 1 85 → 265V ac PCB Mount Enclosed 89mm 63.5mm 25mm 250g - +71°C
RS Stock No. 751-1421
BrandRS PRO
PHP2,857.51
Each
units
24V dc - 1.25A 30W 1 85 → 265V ac PCB Mount Enclosed 89mm 63.5mm 25mm 250g - +71°C
RS Stock No. 181-2148
BrandRS PRO
PHP7,314.97
1 Tube of 19
Tube(s)
15V dc - 400mA 6W 1 100 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 50.8mm 25.4mm 15.36mm 31g 77% +70°C
RS Stock No. 181-2108
BrandRS PRO
PHP266.00
Each
units
3V dc - 600mA 1.98W 1 70 → 420 V dc, 85 → 305 V ac PCB Mount Open Frame 35mm 11mm 18mm 6g 65% +85°C
RS Stock No. 181-2149
BrandRS PRO
PHP7,314.97
1 Tube of 19
Tube(s)
24V dc - 250mA 6W 1 100 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 50.8mm 25.4mm 15.36mm 31g 80% +70°C
RS Stock No. 181-2195
BrandRS PRO
PHP390.00
Each
units
15V dc - 400mA 6W 1 100 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 50.8mm 25.4mm 15.36mm 31g 77% +70°C
RS Stock No. 161-8247
BrandRS PRO
PHP15,602.67
Each
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48V dc - - 1kW - - Chassis Mount Enclosed - - - - - -
RS Stock No. 711-2627
BrandRS PRO
PHP2,806.92
Each
units
24V dc - 1.5A 36W 1 88 → 264V ac Chassis Mount Enclosed 78mm 51mm 28mm 180g 87% +71°C
RS Stock No. 181-2196
BrandRS PRO
PHP326.00
Each
units
15V dc - 200mA 3W 1 100 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 37mm 24.5mm 18mm 25g 77% +70°C
RS Stock No. 181-2114
BrandRS PRO
PHP453.00
Each
units
3V dc - 2A 6.6W 1 100 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 53.8mm 28.8mm 19mm 48g 71% +70°C
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