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 1 - 20 of 4449 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. 771-9379
BrandRS PRO
SGD13.21
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. 751-1406
BrandRS PRO
SGD53.00
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. 819-3970
BrandRS PRO
SGD160.35
Each
units
24V dc - 6.5A 156W 1 88 → 264V ac Chassis Mount Enclosed 97mm 38mm 158mm 570g 92% +71°C
RS Stock No. 828-0134
BrandRS PRO
SGD64.27
Each
units
12V dc - 2A 24W 1 100 → 240V ac Cable Enclosed 140mm 80mm 85mm >1kg >70(Min)% +40°C
RS Stock No. 828-0162
BrandRS PRO
SGD101.60
Each
units
12V dc - 4A 60W 4 100 → 240V ac Wall Mount Enclosed 187.2mm 122.2mm 89.9mm <800g 75(Min)% +40°C
RS Stock No. 786-4738
BrandRS PRO
SGD18.47
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. 667-5789
BrandRS PRO
SGD23.65
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. 751-1431
BrandRS PRO
SGD77.56
Each
units
24V dc - 1.7A 40.8W 1 85 → 265V ac PCB Mount Enclosed 89mm 63.5mm 25mm 250g - +71°C
RS Stock No. 711-2636
BrandRS PRO
SGD82.12
Each
units
24V dc - 2.5A 60W 1 88 → 264V ac Chassis Mount Enclosed 98mm 82mm 35mm 310g 89% +71°C
RS Stock No. 667-5776
BrandRS PRO
SGD19.44
Each
units
24V dc - 125mA 3W 1 110 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 37mm 23mm 15mm 25g 78% +70°C
RS Stock No. 667-5786
BrandRS PRO
SGD24.30
Each
units
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 Stock No. 771-9401
BrandRS PRO
SGD17.85
Each
units
5V dc - 400mA 2W 1 120 → 430 V dc, 85 → 305 V ac PCB Mount Encapsulated 33.7mm 22.2mm 18mm 20g 70% +70°C
RS Stock No. 771-9414
BrandRS PRO
SGD17.54
Each
units
12V dc - 167mA 2W 1 120 → 430 V dc, 85 → 305 V ac PCB Mount Encapsulated 33.7mm 22.2mm 18mm 20g 76% +70°C
RS Stock No. 181-3233
BrandRS PRO
SGD489.59
1 Tube of 13
Tube(s)
3.3V dc - 300mA 1W 1 120 → 370 V dc, 90 → 264 V ac Through Hole Encapsulated 35.7mm 19mm 25mm 27.5g 65% +85°C
RS Stock No. 181-2192
BrandRS PRO
SGD11.91
Each
units
5V dc - 1.2A 6W 1 100 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 50.8mm 25.4mm 15.36mm 31g 76% +70°C
RS Stock No. 711-2608
BrandRS PRO
SGD60.64
Each
units
15V dc - 1.4A 21W 1 88 → 264V ac Chassis Mount Enclosed 92mm 54mm 30mm 140g 87% +71°C
RS Stock No. 181-3257
BrandRS PRO
SGD46.39
Each
units
- - - - - - - - - - - - - -
RS Stock No. 181-2130
BrandRS PRO
SGD21.92
Each
units
24V dc - 1.1A 25W 1 100 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 70mm 48mm 23.5mm 120g 85% +70°C
RS Stock No. 161-8229
BrandRS PRO
SGD97.73
Each
units
24V dc - 13A 300W 1 120 → 370 V dc, 90 → 264 V ac PCB Mount Enclosed 199mm 99mm 50mm - 87% +65°C
RS Stock No. 771-9385
BrandRS PRO
SGD12.94
Each
units
24V dc - 125mA 3W 1 100 → 400 V dc, 85 → 264 V ac PCB Mount Ultra-Miniature 35mm 24mm 11mm - 78% +85°C
Related Products
RS Pro switch mode power supply supports a ...
Description:
RS Pro switch mode power supply supports a wide input voltage range of up to 80%, high power density and low loss. Typical applications for the PCB mount AC/DC power supply induced industrial and office equipment. The 1-output power supply ...
RAC series 3W, universal input, single output AC ...
Description:
RAC series 3W, universal input, single output AC / DC converter power supply with an ultracompact low profile. These universal input, single output AC / DC converters are PCB mounting and have a high efficiency, low standby power and a ...
18W and 20W single output AC-DC encapsulated PCB ...
Description:
18W and 20W single output AC-DC encapsulated PCB mount power supplies with a compact design, universal input voltage and low power consumption. These AC-DC encapsulated PCB mount power supplies also have a low ripple and noise, high efficiency and good ...
The RSP-750 makes the AC/DC miniature industrial product ...
Description:
The RSP-750 makes the AC/DC miniature industrial product more complete with his 42% smaller size. Featuring high power density this power supply is ideal for industrial equipments, where there is a limited space. With 92% of high efficiency and the ...