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 21 - 40 of 4365 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. 667-5776
BrandRS PRO
£10.79
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. 916-3927
BrandRS PRO
£38.52
Each
Units
12V dc - 5A 60W 4 100 → 240V ac Wall Mount Enclosed 250mm 215mm 59mm 1.9kg 81% +45°C
RS Stock No. 786-4744
BrandRS PRO
£10.30
Each
Units
24V dc - 210mA 5W 1 100 → 400 V dc, 85 → 264 V ac PCB Mount Encapsulated 42mm 11mm 24mm 10g 75% +85°C
RS Stock No. 786-4729
BrandRS PRO
£10.30
Each
Units
5V dc - 1A 5W 1 100 → 400 V dc, 85 → 264 V ac PCB Mount Encapsulated 42mm 11mm 24mm 10g 70% +85°C
RS Stock No. 671-6691
BrandRS PRO
£16.90
Each
Units
5V dc - 2A 10W 1 120 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 53.5mm 28.5mm 19mm 50g - +70°C
RS Stock No. 751-1421
BrandRS PRO
£38.11
Each
Units
24V dc - 1.25A 30W 1 85 → 265V ac PCB Mount Enclosed 89mm 63.5mm 25mm 250g - +71°C
RS Stock No. 771-9385
BrandRS PRO
£7.12
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
RS Stock No. 786-4731
BrandRS PRO
£10.15
Each
Units
12V dc - 420mA 5W 1 100 → 400 V dc, 85 → 264 V ac PCB Mount Encapsulated 42mm 11mm 24mm 10g 74% +85°C
RS Stock No. 771-9408
BrandRS PRO
£9.66
Each
Units
3.3V dc - 600mA 2W 1 120 → 430 V dc, 85 → 305 V ac PCB Mount Encapsulated 33.7mm 22.2mm 18mm 20g 65% +70°C
RS Stock No. 124-4709
BrandRS PRO
£24.31
Each
Units
12V dc - 5A 60W 1 100 → 230V ac Panel Mount Open Frame 101.6mm 50.8mm 29mm - 89% +50°C
RS Stock No. 671-6704
BrandRS PRO
£16.90
Each
Units
12V dc - 900mA 10W 1 120 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 53.5mm 28.5mm 19mm 50g - +70°C
RS Stock No. 667-5773
BrandRS PRO
£10.63
Each
Units
12V dc - 250mA 3W 1 110 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 37mm 23mm 15mm 25g 76% +70°C
RS Stock No. 751-1409
BrandRS PRO
£33.12
Each
Units
12V dc - 1.66A 20W 1 120 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 53.5mm 28.5mm 23.5mm 50g 82% +70°C
RS Stock No. 671-6717
BrandRS PRO
£16.90
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. 828-0197
BrandRS PRO
£111.53
Each
Units
13.8V dc - 10A 140W 1 195 → 253V ac Wall Mount Enclosed 240mm 225mm 80mm 1kg >70% +40°C
RS Stock No. 751-1428
BrandRS PRO
£38.11
Each
Units
15V dc - 2A 30W 1 85 → 265V ac PCB Mount Enclosed 89mm 63.5mm 25mm 250g - +71°C
RS Stock No. 828-0190
BrandRS PRO
£70.04
Each
Units
27.6V dc - 1.5A 42W 1 195 → 253V ac Wall Mount Enclosed 310mm 240mm 80mm 1kg >70% +40°C
RS Stock No. 771-9382
BrandRS PRO
£9.05
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. 828-0184
BrandRS PRO
£75.22
Each
Units
13.8V dc - 3A 42W 1 195 → 253V ac Wall Mount Enclosed 240mm 225mm 80mm 1kg >70% +40°C
RS Stock No. 828-0162
BrandRS PRO
£54.66
Each
Units
12V dc - 4A 60W 4 100 → 240V ac Wall Mount Enclosed 187.2mm 122.2mm 89.9mm <800g 75(Min)% +40°C
Related Products
High efficiency, long life and high reliability Low ...
Description:
High efficiency, long life and high reliability Low profile, high power density High operating temperature up to 70°C105°C long life electrolytic capacitors Easy installation - screw terminals Adjustable output voltage (only on output 1, ±10%)Power on LED indicator Harmonic current compliance to EN 61000-3-2EMC meets EN 55022 Class B100% full ...
TMF Series Traco AC/DC power supply are designed ...
Description:
TMF Series Traco AC/DC power supply are designed with quality, reliability and safety of medical equipment in mind. Fully encapsulated modules are for PCB mount. TMF series are extremely compact with excellent EMC considerations. TMF power supply have a wide temperature range making them ideal for stationary and transportable medical ...
Ultra compact fully encapsulated power supplies with increased ...
Description:
Ultra compact fully encapsulated power supplies with increased power density PCB mount with solder pins or chassis mount with screw terminals EMI meets EN 55022, class B and FCC, level BSafety Class I (Class II, TML40 models only)Short circuit and overload protection. Traco 14.9W to 40W, PCB/Chassis Mount, Encapsulated, Switch ...