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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รายละเอียดสินค้า / Description ราคา / 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. 771-9388
Brand :RS PRO
THB395.08
Each
Units
5V dc - 200mA 1W 1 120 → 430 V dc, 85 → 305 V ac PCB Mount Encapsulated 33.7mm 22.2mm 18mm 20g 68% +70°C
RS Stock No. 751-1419
Brand :RS PRO
THB1,636.17
Each
Units
12V dc - 2.5A 30W 1 85 → 265V ac PCB Mount Enclosed 89mm 63.5mm 25mm 250g - +71°C
RS Stock No. 771-9401
Brand :RS PRO
THB421.17
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. 667-5760
Brand :RS PRO
THB467.84
Each
Units
5V dc - 600mA 3W 1 110 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 37mm 23mm 15mm 25g 72% +70°C
RS Stock No. 711-2627
Brand :RS PRO
THB1,651.28
Each
Units
24V dc - 1.5A 36W 1 88 → 264V ac Chassis Mount Enclosed 78mm 51mm 28mm 180g 87% +71°C
RS Stock No. 667-5776
Brand :RS PRO
THB458.71
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. 771-9414
Brand :RS PRO
THB413.85
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. 671-6717
Brand :RS PRO
THB741.68
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. 161-8225
Brand :RS PRO
THB2,144.78
Each
Units
12V dc - 20A 240W 1 85 → 264V ac Chassis Mount Enclosed 199mm 99mm 50mm - - +75°C
RS Stock No. 144-6266
Brand :RS PRO
THB1,019.97
Each
Units
12V dc - 1.25A 15W 1 264 V ac, 370 V dc Chassis Mount Encapsulated 96.1mm 54mm 31mm 135g 80 % @ 230 +70°C
RS Stock No. 161-8297
Brand :RS PRO
THB770.47
Each
Units
12V dc - 12.5A 150W 1 170 → 264 V ac, 85 → 132 V ac Chassis Mount Enclosed 99mm 82mm 30mm 480g 88% +70°C
RS Stock No. 161-8266
Brand :RS PRO
THB2,159.43
Each
Units
48V dc - 4.16A 199.6W 1 127 → 370 V dc, 90 → 264 V ac Chassis Mount Open Frame 128mm 76.5mm 37.1mm - 90% +70°C
RS Stock No. 161-8223
Brand :RS PRO
THB2,017.06
Each
Units
48V dc - 4.2A 200W 1 120 → 370 V dc, 85 → 264 V ac PCB Mount Enclosed 199mm 99mm 50mm - 87.5% +70°C
RS Stock No. 181-2130
Brand :RS PRO
THB416.14
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. 161-8216
Brand :RS PRO
THB425.29
Each
Units
15V dc - 1.7A 25.5W 1 88 → 264V ac Chassis Mount Enclosed 85mm 58.5mm 36.5mm 250g 77.5% +60°C
RS Stock No. 181-2138
Brand :RS PRO
THB2,464.33
1 Tube of 13
Tube(s)
24V dc - 125mA 3W 1 100 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 37mm 24.5mm 18mm 25g 78% +70°C
RS Stock No. 161-8235
Brand :RS PRO
THB5,518.30
Each
Units
48V dc - 11A 480W 1 90 → 264V ac Chassis Mount Enclosed 218mm 116.5mm 41mm 8.7kg - +70°C
RS Stock No. 161-8246
Brand :RS PRO
THB8,889.98
Each
Units
24V dc - - 1kW - - Chassis Mount Enclosed - - - - - -
RS Stock No. 181-2109
Brand :RS PRO
THB123.15
Each
Units
5V dc - 600mA 3W 1 70 → 420 V dc, 85 → 305 V ac PCB Mount Open Frame 35mm 11mm 18mm 6g 70% +85°C
RS Stock No. 161-8230
Brand :RS PRO
THB2,232.68
Each
Units
48V dc - 6.7A 300W 1 120 → 370 V dc, 90 → 264 V ac PCB Mount Enclosed 199mm 99mm 50mm - 87.5% +65°C
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