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


...
Read more Read less

Filters

Viewing 61 - 80 of 4387 products
Results per page
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. 751-1406
BrandRS PRO
£32.95
Each
Units
5V dc - 3.6A 18W 1 120 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 53.5mm 28.5mm 23.5mm 50g 78% +70°C
RS Stock No. 751-1419
BrandRS PRO
£38.11
Each
Units
12V dc - 2.5A 30W 1 85 → 265V ac PCB Mount Enclosed 89mm 63.5mm 25mm 250g - +71°C
RS Stock No. 667-5767
BrandRS PRO
£10.63
Each
Units
3.3V dc - 700mA 2.3W 1 110 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 37mm 23mm 15mm 25g 63% +70°C
RS Stock No. 771-9411
BrandRS PRO
£9.66
Each
Units
24V dc - 83mA 2W 1 120 → 430 V dc, 85 → 305 V ac PCB Mount Encapsulated 33.7mm 22.2mm 18mm 20g 78% +70°C
RS Stock No. 828-0194
BrandRS PRO
£93.38
Each
Units
27.6V dc - 2.5A 70W 1 195 → 253V ac Wall Mount Enclosed 310mm 240mm 80mm 1kg >70% +40°C
RS Stock No. 828-0188
BrandRS PRO
£85.24
Each
Units
13.8V dc - 5A 70W 1 195 → 253V ac Wall Mount Enclosed 240mm 225mm 80mm 1kg >70% +40°C
RS Stock No. 786-4738
BrandRS PRO
£10.15
Each
Units
9V dc - 560mA 5W 1 100 → 400 V dc, 85 → 264 V ac PCB Mount Encapsulated 42mm 11mm 24mm 10g 72% +85°C
RS Stock No. 791-1086
BrandRS PRO
£36.14
Each
Units
48V dc - 3.2A 153.6W 1 120 → 370 V dc, 85 → 264 V ac Chassis Mount Enclosed 199mm 99mm 30mm 600g 90% +70°C
RS Stock No. 124-4714
BrandRS PRO
£25.77
Each
Units
48V dc - 1.25A 60W 1 100 → 230V ac Panel Mount Open Frame 101.6mm 50.8mm 29mm - 89% +50°C
RS Stock No. 124-4713
BrandRS PRO
£25.77
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. 124-4712
BrandRS PRO
£25.77
Each
Units
27.6V dc - 2.16A 60W 2 100 → 230V ac Panel Mount Open Frame 101.6mm 50.8mm 29mm - - +50°C
RS Stock No. 161-8267
BrandRS PRO
£47.48
Each
Units
13.8V dc - 10A 140W 2 195 → 253V ac Chassis Mount Enclosed 200mm 110mm 50mm 900g - +45°C
RS Stock No. 161-8268
BrandRS PRO
£47.48
Each
Units
27.6V dc - 5A 140W 2 195 → 253V ac Chassis Mount Enclosed 200mm 110mm 50mm 900g - +45°C
RS Stock No. 161-8218
BrandRS PRO
£46.43
Each
Units
5V dc - 40A 200W 1 120 → 370 V dc, 85 → 264 V ac PCB Mount Enclosed 199mm 99mm 50mm - 79% +70°C
RS Stock No. 181-2147
BrandRS PRO
£98.39
1 Tube of 19
Tube(s)
12V dc - 500mA 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. 181-3261
BrandRS PRO
£23.66
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 181-2117
BrandRS PRO
£6.17
Each
Units
12V dc - 900mA 10W 1 100 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 53.8mm 28.8mm 19mm 48g 81% +70°C
RS Stock No. 161-8269
BrandRS PRO
£43.73
Each
Units
12V dc - 16.7A 200W 1 90 → 264V ac Chassis Mount Enclosed 200mm 99mm 38mm - - +70°C
RS Stock No. 161-8219
BrandRS PRO
£46.43
Each
Units
12V dc - 16.7A 200W 1 120 → 370 V dc, 85 → 264 V ac PCB Mount Enclosed 199mm 99mm 50mm - 84% +70°C
RS Stock No. 161-8259
BrandRS PRO
£33.33
Each
Units
15V dc - 8.4A 126W 1 90 → 264V ac Chassis Mount Open Frame 127mm 76mm 30.5mm - 85 %, 87 % +70°C