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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Omschrijving Prijs Output Voltage Series Output Current Power Rating Number of Outputs Input Voltage Mounting Type Package Type Length Width Depth Weight Efficiency Maximum Temperature
RS-stocknr. 739-8363
FabrikantnummerRAC06-12DC
FabrikantRecom
21,11 €
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Aantal stuks
±12 V dc - ±250mA 6W 2 90 → 264V ac PCB Mount Encapsulated 53.5mm 25.5mm 15.6mm 35g 78% +80°C
RS-stocknr. 844-4013
FabrikantnummerRAC60-12S/OF
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23,72 €
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12 V dc - 5A 60W 1 90 → 265 V ac, 127 → 370 V dc Chassis Mount Open Frame 101.6mm 50.8mm 30mm 145g 83% +70°C
RS-stocknr. 166-6717
FabrikantnummerRAC06-12DC
FabrikantRecom
200,69 €
1 Tube of 9
Tube(s)
±12 V dc - ±250mA 6W 2 90 → 264V ac PCB Mount Encapsulated 53.5mm 25.5mm 15.6mm 35g 78% +80°C
RS-stocknr. 675-5096
FabrikantnummerRAC30-05SA
FabrikantRecom
61,70 €
Each
Aantal stuks
5 V dc - 6A 30W 1 90 → 264V ac PCB Mount Encapsulated 89mm 63.5mm 25mm 212g 79% +70°C
RS-stocknr. 777-3424
FabrikantnummerRAC05-05SC
FabrikantRecom
17,40 €
Each
Aantal stuks
5 V dc - 1A 5W 1 80 → 264V ac PCB Mount Encapsulated 50.9mm 25.5mm 15.65mm 35g 73% +75°C
RS-stocknr. 843-2010
FabrikantnummerRAC04-24SC/W
FabrikantRecom
14,61 €
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Aantal stuks
24 V dc - 167mA 4W 1 80 → 264 (With Derating) V ac, 115 → 370 (With Derating) V dc Through Hole Encapsulated 37.8mm 23.9mm 15.65mm 32g 79% +60°C
RS-stocknr. 817-9826
FabrikantnummerRAC04-12DC/230
FabrikantRecom
16,17 €
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Aantal stuks
±12 V dc - 166mA 4W 2 80 → 264V ac Through Hole Encapsulated 36.7mm 27.2mm 17.1mm - 78% +65°C
RS-stocknr. 166-6747
FabrikantnummerRAC04-12DC/230
FabrikantRecom
198,93 €
1 Tube of 12
Tube(s)
±12 V dc - 166mA 4W 2 80 → 264V ac PCB Mount Encapsulated 36.7mm 27.2mm 17.1mm - 78% +65°C
RS-stocknr. 811-7327
FabrikantnummerRAC05-15SC/W
FabrikantRecom
19,84 €
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Aantal stuks
15 V dc - 340mA 5W 1 80 → 264V ac Through Hole Encapsulated 50.9mm 25.5mm 15.65mm 35g 76% +55°C
RS-stocknr. 739-8360
FabrikantnummerRAC06-05DC
FabrikantRecom
20,90 €
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Aantal stuks
±5 V dc - ±600mA 6W 2 90 → 264V ac Through Hole Encapsulated 53.5mm 25.5mm 15.6mm 35g 75% +80°C
RS-stocknr. 739-8326
FabrikantnummerRAC02-3.3SC
FabrikantRecom
13,27 €
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Aantal stuks
3.3 V dc - 600mA 2W 1 90 → 277V ac PCB Mount Encapsulated 33.7mm 22.2mm 17.75mm 25g 66% +85°C
RS-stocknr. 162-2677
FabrikantnummerRAC03-05SC
FabrikantRecom
151,56 €
1 Tube of 12
Tube(s)
5 V dc - 600mA 3W 1 90 → 264V ac PCB Mount Encapsulated 37.8mm 23.9mm 15.65mm 30g 73% +85°C
RS-stocknr. 739-8339
FabrikantnummerRAC03-05SC
FabrikantRecom
14,52 €
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Aantal stuks
5 V dc - 600mA 3W 1 90 → 264V ac PCB Mount Encapsulated 37.8mm 23.9mm 15.65mm 30g 73% +85°C
RS-stocknr. 166-6741
FabrikantnummerRAC05-05SC
FabrikantRecom
183,92 €
1 Tube of 10
Tube(s)
5 V dc - 1A 5W 1 80 → 264V ac PCB Mount Encapsulated 50.9mm 25.5mm 15.65mm 35g 73% +75°C
RS-stocknr. 166-6765
FabrikantnummerRAC02-3.3SC
FabrikantRecom
299,32 €
1 Tube of 22
Tube(s)
3.3 V dc - 600mA 2W 1 90 → 277V ac PCB Mount Encapsulated 33.7mm 22.2mm 17.75mm 25g 66% +85°C
RS-stocknr. 804-6158
FabrikantnummerRAC40-24SB-ST
FabrikantRecom
90,98 €
Each
Aantal stuks
24 V dc - 1.67A 40W 1 90 → 264 V ac, 100 → 375 V ac Through Hole Encapsulated 111.9mm 63.7mm 32.5mm 300g 83% +70°C
RS-stocknr. 166-6716
FabrikantnummerRAC06-05DC
FabrikantRecom
198,62 €
1 Tube of 9
Tube(s)
±5 V dc - ±600mA 6W 2 90 → 264V ac PCB Mount Encapsulated 53.5mm 25.5mm 15.6mm 35g 75% +80°C
RS-stocknr. 139-2831
FabrikantnummerRAC01-05SGA
FabrikantRecom
128,90 €
1 Tube of 20
Tube(s)
5 V dc - 200mA 1W 1 100 → 240V ac PCB Mount Encapsulated 33.7mm 22.2mm 19mm 12g 63% +70°C
RS-stocknr. 144-6300
FabrikantnummerRAC03-12SGB
FabrikantRecom
8,89 €
Each
Aantal stuks
12 V dc - 250mA 3W 1 305 V ac, 430 V dc PCB Mount Encapsulated 37mm 24mm 15mm 20g 78% +70°C
RS-stocknr. 144-6320
FabrikantnummerRAC04-3.3SGB
FabrikantRecom
9,51 €
Each
Aantal stuks
3.3 V dc - 1.21A 4W 1 305 V ac, 430 V dc PCB Mount Encapsulated 37mm 24mm 15mm 20g 70% +85°C