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


...
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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. 675-5100
Mfr. Part No.RAC30-24SA
BrandRecom
TWD2,328.00
Each
units
24 V dc - 1.25A 30W 1 90 → 264V ac PCB Mount Encapsulated 89mm 63.5mm 25mm 212g 82% +70°C
RS Stock No. 777-3109
Mfr. Part No.EPS-15-5
BrandMean Well
TWD298.00
Each
units
5 V dc - 3A 15W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Open Frame 63.5mm 45.7mm 24mm 57g 78% +70°C
RS Stock No. 644-8391
Mfr. Part No.SP-200-12
BrandMean Well
TWD2,451.00
Each
units
12 V dc - 16.7A 200W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Enclosed 199mm 99mm 50mm 850g 79% +60°C
RS Stock No. 489-8643
Mfr. Part No.PBA100F-12-N
BrandCosel
TWD3,868.00
Each
units
12 V dc - 8.5A 102W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Enclosed 160.5mm 93.5mm 35.5mm 440g 83% +71°C
RS Stock No. 489-8687
Mfr. Part No.PBA150F-24-N
BrandCosel
TWD4,925.00
Each
units
24 V dc - 6.5A 156W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Enclosed 168mm 93mm 34mm 560g 85 %, 88 % +71°C
RS Stock No. 644-8278
Mfr. Part No.PSP-600-24
BrandMean Well
TWD4,566.00
Each
units
24 V dc - 25A 600W 1 88 → 264 V ac, 124 → 370 V dc Chassis Mount Enclosed 170mm 120mm 93mm 1.9kg 86% +60°C
RS Stock No. 106-5869
Mfr. Part No.LRS-350-24RS
BrandMean Well
TWD1,146.00
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. 489-8700
Mfr. Part No.PBA300F-24
BrandCosel
TWD10,973.00
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. 330-689
Mfr. Part No.LEA50F-5-SN
BrandCosel
TWD2,698.00
Each
units
5 V dc - 10A 50W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Enclosed 225mm 65mm 36mm 210g 77% +70°C
RS Stock No. 413-683
Mfr. Part No.RT-125B
BrandMean Well
TWD1,191.00
Each
units
±12 V dc, 5 V dc - 1 A, 5 A, 12 A 132W 3 88 → 132 V ac, 176 → 264 V ac, 248 → 373 V dc Chassis Mount Enclosed 199mm 98mm 38mm 700g 80% +70°C
RS Stock No. 489-8542
Mfr. Part No.PBA50F-5-N
BrandCosel
TWD2,860.00
Each
units
5 V dc - 10A 50W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Enclosed 136.5mm 82.5mm 34.5mm 280g 82% +71°C
RS Stock No. 414-103
Mfr. Part No.SP-480-24
BrandMean Well
TWD6,244.00
Each
units
24 V dc - 20A 480W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Enclosed 278mm 127mm 43mm 1.7kg 87% +60°C
RS Stock No. 644-7196
Mfr. Part No.RPT-60A
BrandMean Well
TWD606.00
Each
units
±12 V dc, ±5 V dc - 2 A, 4 A, 500 mA 46.5W 3 90 → 264 V ac, 127 → 370 V dc Chassis Mount Open Frame 101.6mm 50.8mm 29mm 150g - +65°C
RS Stock No. 122-7085
Mfr. Part No.ECM60US24
BrandXP Power
TWD1,743.00
Each
units
24 V dc - 2.5A 60W 1 90 → 264 V ac, 120 → 370 V dc Chassis Mount Open Frame 101.6mm 50.8mm 27mm 150g - +70°C
RS Stock No. 756-3959
Mfr. Part No.6EP1331-1LD00
BrandSiemens
TWD1,979.00
Each
units
24 V dc - 2.1A 50W 1 85 → 264V ac Chassis Mount Enclosed 128mm 97mm 38mm 350g 86% +70°C
RS Stock No. 678-3827
Mfr. Part No.SP-320-5
BrandMean Well
TWD2,887.00
Each
units
5 V dc - 55A 275W 1 88 → 264 V ac, 124 → 370 V dc Chassis Mount Enclosed 215mm 115mm 50mm 1.1kg 79% +65°C
RS Stock No. 813-9049
Mfr. Part No.HWS-50A-12/A
BrandTDK-Lambda
TWD2,968.00
Each
units
12 V dc - 4.3A 50W 1 85 → 265 V ac, 120 → 370 V dc Chassis Mount Enclosed 82mm 26.5mm 120mm 280g 87% +50°C
RS Stock No. 770-3973
Mfr. Part No.RPS-300-27RS
BrandMean Well
TWD2,043.00
Each
units
27 V dc - 7.4 A, 11.12 A 200W 1 90 → 264 V ac, 127 → 370 V dc Chassis Mount Open Frame 127mm 76.2mm 35mm 370g - +70°C
RS Stock No. 627-3844
Mfr. Part No.XG5
BrandExcelsys
TWD5,937.00
Each
units
58 V dc - 6A 288W 1 85 → 264 V ac, 120 → 380 V dc Chassis Mount Enclosed 269.75mm 127mm 40.4mm 100g 90% +70°C
RS Stock No. 603-1094
Mfr. Part No.PBA600F-24
BrandCosel
TWD15,207.00
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