Switching Power Supplies

  • 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 Embedded Number of Outputs Input Voltage Mounting Type Package Type Length Width Depth Weight Efficiency
RS Stock No. 667-5789
BrandRS PRO
kr 180,57
Each
Units
5V dc - 1A 5W - 1 110 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 50.8mm 25.4mm 15.16mm 35g 72%
RS Stock No. 771-9379
BrandRS PRO
kr 112,08
Each
Units
5V dc - 500mA 3W - 1 100 → 400 V dc, 85 → 264 V ac PCB Mount Ultra-Miniature 35mm 24mm 11mm - 69%
RS Stock No. 667-5773
BrandRS PRO
kr 161,88
Each
Units
12V dc - 250mA 3W - 1 110 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 37mm 23mm 15mm 25g 76%
RS Stock No. 771-9405
BrandRS PRO
kr 141,44
Each
Units
9V dc - 222mA 2W - 1 120 → 430 V dc, 85 → 305 V ac PCB Mount Encapsulated 33.7mm 22.2mm 18mm 20g 72%
RS Stock No. 671-6691
BrandRS PRO
kr 239,71
Each
Units
5V dc - 2A 10W - 1 120 → 370 V dc, 85 → 264 V ac PCB Mount Encapsulated 53.5mm 28.5mm 19mm 50g -
RS Stock No. 819-3961
BrandRS PRO
kr 1 284,56
Each
Units
15V dc - 10.4A 156W - 1 88 → 264V ac Chassis Mount Enclosed 97mm 38mm 158mm 570g 92%
RS Stock No. 124-4713
BrandRS PRO
kr 492,26
Each
Units
32V dc - 1.87A 60W - 1 100 → 230V ac Panel Mount Open Frame 101.6mm 50.8mm 29mm - 89%
RS Stock No. 771-9420
BrandRS PRO
kr 439,10
Each
Units
5V dc - 3A 15W - 1 120 → 375 V dc, 85 → 265 V ac PCB Mount Enclosed 76.2mm 50.8mm 22.8mm 160g 76%
RS Stock No. 786-4725
BrandRS PRO
kr 155,57
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%
RS Stock No. 161-8254
BrandRS PRO
kr 300,16
Each
Units
24V dc - 2.5A 60W - 1 127 → 370 V dc, 90 → 264 V ac Chassis Mount Open Frame 101.6mm 51mm 30mm - 87%
RS Stock No. 219-3032
BrandRS PRO
kr 478,67
Each
Units
48V dc LMF 3.2A 153W - 1 85 → 305V ac Chassis Mount Enclosed 179mm 99mm 30mm 500g 88%
RS Stock No. 161-8255
BrandRS PRO
kr 241,45
Each
Units
48V dc - 1.25A 60W - 1 127 → 370 V dc, 90 → 264 V ac Chassis Mount Open Frame 101.6mm 51mm 30mm - 85%
New
RS Stock No. 233-3522
BrandRS PRO
kr 68,60
Each
Units
24V dc LD05 208mA 5W Yes - 85 → 305 V ac, 100 → 430 V dc - - - - - - -
RS Stock No. 751-1421
BrandRS PRO
kr 586,95
Each
Units
24V dc - 1.25A 30W - 1 85 → 265V ac PCB Mount Enclosed 89mm 63.5mm 25mm 250g -
New
RS Stock No. 235-1370
BrandRS PRO
kr 138,83
Each
Units
3.3V URB_ZP-6WR3 1.5A 6W Yes 1 9 → 36V dc PCB Mount - - - - - -
RS Stock No. 161-8297
BrandRS PRO
kr 249,39
Each
Units
12V dc - 12.5A 150W - 1 170 → 264 V ac, 85 → 132 V ac Chassis Mount Enclosed 159mm 97mm 30mm 480g 88%
RS Stock No. 227-5214
BrandRS PRO
kr 140,24
Each
Units
5V dc LD30 6A 30W - 1 100 → 430V dc - Encapsulated - - - - -
RS Stock No. 161-8215
BrandRS PRO
kr 183,07
Each
Units
12V dc - 2.1A 25.2W - 1 88 → 264V ac Chassis Mount Enclosed 850mm 58.5mm 36.5mm 250g 77.5%
RS Stock No. 161-8284
BrandRS PRO
kr 192,97
Each
Units
5V dc - 14A 60W - 1 100 → 240V ac Chassis Mount Enclosed 97mm 99mm 30mm 300g 84%
RS Stock No. 161-8227
BrandRS PRO
kr 986,69
Each
Units
48V dc - 5A 240W - 1 85 → 264V ac Chassis Mount Enclosed 199mm 99mm 50mm - -