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 3702 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. 106-5869
Mfr. Part No.LRS-350-24RS
BrandMean Well
$69.40
Each
units
24 V dc - 14.6A 350W 1 90 → 132 V ac, 180 → 264 (By Switch) V ac, 240 → 370 V dc Chassis Mount Enclosed 215mm 115mm 30mm 760g 88% +70°C
RS Stock No. 106-5846
Mfr. Part No.LRS-100-24
BrandMean Well
$33.24
Each
units
24 V dc - 4.5A 108W 1 85 → 264 V ac, 120 → 373 V dc Chassis Mount Enclosed 129mm 97mm 30mm 340g 90% +70°C
RS Stock No. 665-5820
Mfr. Part No.TEX 120-124
BrandTRACOPOWER
$465.61
Each
units
24 V dc - 5A 120W 1 85 → 264 V ac, 85 → 375 V dc Chassis Mount Enclosed 174mm 93mm 56mm 1kg 90% +85°C
RS Stock No. 621-0685
Mfr. Part No.RS-150-24
BrandMean Well
$55.96
Each
units
24 V dc - 6.5A 156W 1 88 → 132 V ac, 176 → 264 V ac, 248 → 373 V dc Chassis Mount Enclosed 199mm 98mm 38mm 700g 86% +70°C
RS Stock No. 489-8700
Mfr. Part No.PBA300F-24
BrandCosel
$552.84
Each
units
24 V dc - 14A 336W 1 85 → 264 V ac, 120 → 350 V dc Chassis Mount Enclosed 170mm 102mm 42mm 1kg 79 %, 82 % +71°C
RS Stock No. 705-9854
Mfr. Part No.SPV-300-48RS
BrandMean Well
$234.48
Each
units
48 V dc - 6.25A 300W 1 88 → 264 V ac, 124 → 370 V dc Chassis Mount Enclosed 215mm 115mm 50mm 1.1kg 86.5% +65°C
RS Stock No. 183-0054
Mfr. Part No.LPT45
$113.77
Each
units
±15 V dc, 5 V dc - 2.5 A, 5 A, 700 mA 40W 3 85 → 264 V ac, 120 → 300 V dc Chassis Mount Open Frame 127mm 76.2mm 29mm 230g 70% +50°C
RS Stock No. 413-667
Mfr. Part No.RS-15-12
BrandMean Well
$22.09
Each
units
12 V dc - 1.3A 15.6W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Enclosed 62.5mm 51mm 28mm 130g 81% +70°C
RS Stock No. 603-1094
Mfr. Part No.PBA600F-24
BrandCosel
$822.32
Each
units
24 V dc - 27A 648W 1 85 → 264 V ac, 120 → 350 V dc Chassis Mount Open Frame 221mm 120mm 61mm 1.6kg 84% +71°C
RS Stock No. 122-7746
Mfr. Part No.ECL15US05-T
BrandXP Power
$40.60
Each
units
5 V dc - 3A 15W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Open Frame 78.7mm 31.8mm 20mm 35g 78% +70°C
RS Stock No. 122-7046
Mfr. Part No.ECM100US12
BrandXP Power
$156.45
Each
units
12 V dc - 8.3A 100W 1 90 → 264 V ac, 120 → 370 V dc Chassis Mount Open Frame 114.3mm 63.5mm 27mm 180g - +70°C
RS Stock No. 106-5852
Mfr. Part No.LRS-150F-24RS
BrandMean Well
$93.88
Each
units
24 V dc - 6.5A 156W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Enclosed 159mm 97mm 30mm 480g 89% +70°C
RS Stock No. 106-5853
Mfr. Part No.LRS-150F-36RS
BrandMean Well
$53.28
Each
units
36 V dc - 4.3A 154.8W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Enclosed 159mm 97mm 30mm 480g 89% +70°C
RS Stock No. 192-1087
Mfr. Part No.LPT22
$66.69
Each
units
±12 V dc, 5 V dc - 2 A, 4 A, 700 mA 25W 3 85 → 264 V ac, 120 → 300 V dc Chassis Mount Open Frame 127mm 76.2mm 29mm 230g 70% +50°C
RS Stock No. 705-9850
Mfr. Part No.SPV-300-24RS
BrandMean Well
$276.69
Each
units
24 V dc - 12.5A 300W 1 88 → 264 V ac, 124 → 370 V dc Chassis Mount Enclosed 215mm 115mm 50mm 1.1kg 85% +65°C
RS Stock No. 183-0098
Mfr. Part No.LPS65
$115.72
Each
units
24 V dc - 2.5A 60W 1 85 → 264 V ac, 120 → 300 V dc Chassis Mount Open Frame 127mm 76.2mm 42.9mm 340g 70% +50°C
RS Stock No. 621-0584
Mfr. Part No.RS-25-24
BrandMean Well
$24.47
Each
units
24 V dc - 1.1A 26W 1 88 → 264 V ac, 125 → 373 V dc Chassis Mount Enclosed 78mm 51mm 28mm 200g 86% +70°C
RS Stock No. 644-7073
Mfr. Part No.RD-35A
BrandMean Well
$39.01
Each
units
5 V dc, 12 V dc - 1 A, 4 A 32W 2 88 → 264 V ac, 125 → 373 V dc Chassis Mount Enclosed 99mm 82mm 36mm 300g - +70°C
RS Stock No. 621-0679
Mfr. Part No.RS-100-24
BrandMean Well
$57.73
Each
units
24 V dc - 4.5A 108W 1 88 → 264 V ac, 125 → 373 V dc Chassis Mount Enclosed 159mm 97mm 38mm 600g 84% +70°C
RS Stock No. 103-4703
Mfr. Part No.RPS-120-12
BrandMean Well
$47.12
Each
units
12 V dc - 10A 84W 1 80 → 264 V ac, 113 → 370 V dc PCB Mount Open Frame 101.6mm 50.8mm 29mm 150g - +70°C