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.</pRS Components stock an extensive range of high-quality, high-efficiency SMPS from industry-leading brands including Mean Well, XP Power, TDK-Lambda, TRACOPOWER, Cosel, and of course RS PRO.

    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 of 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 is typically compact in nature, making them ideal for projects with limited space.

    Where are SMPS used?

    Switch mode power supplies are used in a wide range of industrial, commercial, and domestic applications. Some of the most common are:ServersPC/LaptopsMobile phone chargersSecurity systems such as CCTV CamerasMachine 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. 786-4725
BrandRS PRO
MYR73.85
Each
units
3.3V dc - 1A 3.3W 1 100 → 400 V dc, 85 → 264 V ac PCB Mount Ultra-Miniature 42mm 11mm 24mm - 65% +85°C
RS Stock No. 667-5767
BrandRS PRO
MYR77.34
Each
units
3.3V dc - 700mA 2.3W 1 110 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 37mm 23mm 15mm 25g 63% +70°C
RS Stock No. 786-4731
BrandRS PRO
MYR72.41
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. 786-4744
BrandRS PRO
MYR73.48
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. 771-9379
BrandRS PRO
MYR52.82
Each
units
5V dc - 500mA 3W 1 100 → 400 V dc, 85 → 264 V ac PCB Mount Ultra-Miniature 35mm 24mm 11mm - 69% +85°C
RS Stock No. 771-9366
BrandRS PRO
MYR43.80
Each
units
12V dc - 83.3mA 1W 1 100 → 400 V dc, 85 → 264 V ac PCB Mount Miniature 35mm 24mm 11mm - 70% +85°C
RS Stock No. 771-9372
BrandRS PRO
MYR51.66
Each
units
9V dc - 333mA 3W 1 100 → 400 V dc, 85 → 264 V ac PCB Mount Ultra-Miniature 35mm 24mm 11mm - 76% +85°C
RS Stock No. 771-9385
BrandRS PRO
MYR50.79
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. 771-9414
BrandRS PRO
MYR70.28
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. 771-9401
BrandRS PRO
MYR66.33
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. 161-8284
BrandRS PRO
MYR92.98
Each
units
5V dc - 14A 60W 1 100 → 240V ac Chassis Mount Enclosed 97mm 99mm 30mm 300g 84% +50°C
RS Stock No. 667-5773
BrandRS PRO
MYR77.23
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. 161-8268
BrandRS PRO
MYR334.41
Each
units
27.6V dc - 5A 140W 2 195 → 253V ac Chassis Mount Enclosed 200mm 110mm 50mm 900g - +45°C
RS Stock No. 181-2148
BrandRS PRO
MYR633.59
1 Tube of 19
Tube(s)
15V dc - 400mA 6W 1 100 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 50.8mm 25.4mm 15.36mm 31g 77% +70°C
RS Stock No. 771-9436
BrandRS PRO
MYR207.43
Each
units
24V dc - 625mA 15W 1 120 → 375 V dc, 85 → 265 V ac PCB Mount Enclosed 76.2mm 50.8mm 22.8mm 160g 82% +71°C
RS Stock No. 819-3961
BrandRS PRO
MYR635.45
Each
units
15V dc - 10.4A 156W 1 88 → 264V ac Chassis Mount Enclosed 97mm 38mm 158mm 570g 92% +71°C
RS Stock No. 181-2111
BrandRS PRO
MYR22.34
Each
units
12V dc - 250mA 3W 1 70 → 420 V dc, 85 → 305 V ac PCB Mount Open Frame 35mm 11mm 18mm 6g 74% +85°C
RS Stock No. 181-2127
BrandRS PRO
MYR69.19
Each
units
5V dc - 4.1A 20.5W 1 100 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 70mm 48mm 23.5mm 120g 79% +70°C
RS Stock No. 206-7696
BrandRS PRO
MYR28.67
Each
units
9V dc - 560mA 5W 1 85 → 264 V ac, 100 → 400 V dc PCB Mount Encapsulated 40mm 12.8mm 18.5mm 7g 75% +70°C
RS Stock No. 181-3265
BrandRS PRO
MYR236.53
Each
units
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