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 121 - 140 of 4490 products
Results per page
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. 144-6275
BrandRS PRO
MYR363.95
Each
units
24V dc - 1.667A 40W 264 V ac, 370 V dc 1 Chassis Mount Encapsulated 135mm 70mm 33.5mm - - 310g
RS Stock No. 181-2131
BrandRS PRO
MYR63.96
Each
units
48V dc - 500mA 25W 100 370 V dc, 85 264 V ac 1 PCB Mount Encapsulated 70mm 48mm 23.5mm - - 120g
RS Stock No. 771-9394
BrandRS PRO
MYR50.46
Each
units
15V dc - 67mA 1W 120 430 V dc, 85 305 V ac 1 PCB Mount Encapsulated 33.7mm 22.2mm 18mm - - 20g
RS Stock No. 144-6287
BrandRS PRO
MYR152.03
Each
units
5V dc - 4.1A 20.5W 264 V ac, 370 V dc 1 PCB Mount Encapsulated 70mm 48mm 23.5mm - - 120g
RS Stock No. 771-9423
BrandRS PRO
MYR152.79
Each
units
12V dc - 1.25A 15W 120 375 V dc, 85 265 V ac 1 PCB Mount Enclosed 76.2mm 50.8mm 22.8mm - - 160g
RS Stock No. 181-3233
BrandRS PRO
MYR1,428.03
1 Tube of 13
Tube(s)
3.3V dc - 300mA 1W 120 370 V dc, 90 264 V ac 1 Through Hole Encapsulated 35.7mm 19mm 25mm - - 27.5g
RS Stock No. 161-8300
BrandRS PRO
MYR114.89
Each
units
36V dc - 4.3A 155W 170 264 V ac, 85 132 V ac 1 Chassis Mount Enclosed 99mm 82mm 30mm - - 480g
RS Stock No. 181-3253
BrandRS PRO
MYR119.01
Each
units
- - - - - - - - - - - - - -
RS Stock No. 161-8211
BrandRS PRO
MYR56.62
Each
units
15V dc - 1A 15W 88 264V ac 1 Chassis Mount Enclosed 85mm 58.5mm 36.5mm - - 250g
RS Stock No. 144-6268
BrandRS PRO
MYR173.75
Each
units
24V dc - 625mA 15W 264 V ac, 370 V dc 1 Chassis Mount Encapsulated 96.1mm 54mm 31mm - - 135g
RS Stock No. 771-8543
BrandRS PRO
MYR340.39
Each
units
15V dc - 7A 105W 88 264V ac 1 Chassis Mount Enclosed 158mm 97mm 38mm - - 520g
RS Stock No. 181-2138
BrandRS PRO
MYR332.48
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. 161-8223
BrandRS PRO
MYR341.22
Each
units
48V dc - 4.2A 200W 120 370 V dc, 85 264 V ac 1 PCB Mount Enclosed 199mm 99mm 50mm - - -
RS Stock No. 161-8237
BrandRS PRO
MYR740.61
Each
units
24V dc - 21A 504W 88 264V ac 1 Chassis Mount Enclosed 183mm 120mm 83.5mm - - -
RS Stock No. 828-0134
BrandRS PRO
MYR204.98
Each
units
12V dc - 2A 24W 100 240V ac 1 Cable Enclosed 140mm 80mm 85mm - - >1kg
RS Stock No. 181-3234
BrandRS PRO
MYR1,428.03
1 Tube of 13
Tube(s)
5V dc - 200mA 1W 120 370 V dc, 90 264 V ac 1 Through Hole Encapsulated 35.7mm 19mm 25mm - - 27.5g
RS Stock No. 828-0147
BrandRS PRO
MYR307.67
Each
units
12V dc - 5A 60W 100 240V ac 1 Cable Enclosed 187.2mm 122.2mm 89.9mm - - >1kg
RS Stock No. 161-8262
BrandRS PRO
MYR295.58
Each
units
48V dc - 2.6A 124.8W 90 264V ac 1 Chassis Mount Open Frame 127mm 76mm 30.5mm - - -
RS Stock No. 771-9411
BrandRS PRO
MYR53.79
Each
units
24V dc - 83mA 2W 120 430 V dc, 85 305 V ac 1 PCB Mount Encapsulated 33.7mm 22.2mm 18mm - - 20g
RS Stock No. 181-2116
BrandRS PRO
MYR40.38
Each
units
9V dc - 1.1A 10W 100 370 V dc, 85 264 V ac 1 PCB Mount Encapsulated 53.8mm 28.8mm 19mm - - 48g
Related Products
The TRACOPOWER TXL series is a family of ...
Description:
The TRACOPOWER TXL series is a family of encased power supplies, designed for a wide range of cost critical industrial applications. Wit a low profile metal case and screw terminal block connection they are easy to install in any equipment. ...
The Traco Power TIW series of DC-power supplies ...
Description:
The Traco Power TIW series of DC-power supplies has a small size and is designed for application in home and office installations. This encapsulated power supply fits in standard flush wall boxes and can also be mounted on walls. The ...
The TDK-Lambda HWS-A series of AC-DC power supplies, ...
Description:
The TDK-Lambda HWS-A series of AC-DC power supplies, comprises five models rated from 15-150W. A significant upgrade of the established HWS series, which is still compatible with the new HWS-A series to enable easy upgrade. This switch mode power supply ...
Switch mode, wall mount power supplies with a ...
Description:
Switch mode, wall mount power supplies with a built-in battery back-up circuit that will activate automatically in the event of a power outage ensuring a continuity of supply. These wall mount battery backed power supplies are ideal for applications where ...