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. 770-3276
Mfr. Part No.TXM 035-105
BrandTRACOPOWER
€28.00
Each
units
5 V dc - 6A 35W 1 90 → 264V ac Chassis Mount Enclosed 102mm 64mm 33mm 200g 80% +70°C
RS Stock No. 621-0663
Mfr. Part No.RS-150-12
BrandMean Well
€32.79
Each
units
12 V dc - 12.5A 150W 1 88 → 132 V ac, 176 → 264 V ac, 248 → 373 V dc Chassis Mount Enclosed 199mm 98mm 38mm 700g 83% +70°C
RS Stock No. 183-0010
Mfr. Part No.LPT42
€40.73
Each
units
±12 V dc, 5 V dc - 2.5 A, 5 A, 700 mA 40W 3 85 → 264 V ac, 120 → 300 V dc Chassis Mount Open Frame 127mm 76.2mm 29mm 230g 70% +50°C
RS Stock No. 466-7180
Mfr. Part No.TXL 060-12S
BrandTRACOPOWER
€53.96
Each
units
12 V dc TXL 5A 60W 1 85 → 264V ac Chassis Mount Enclosed 109mm 82mm 35mm 300g 70 → 84% +70°C
RS Stock No. 408-4311
Mfr. Part No.V4FFS 24V15A
BrandTDK-Lambda
€486.85
Each
units
24 V dc - 15A 450W 1 90 → 264 V ac, 130 → 330 V dc Chassis Mount Enclosed 268.4mm 127mm 63.5mm 2kg 75% +50°C
RS Stock No. 815-7476
Mfr. Part No.RSP-500-48RS
BrandMean Well
€174.68
Each
units
48 V dc - 10.5A 504W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Enclosed 230mm 127mm 40.5mm 1.3kg 90.5% +70°C
RS Stock No. 122-7659
Mfr. Part No.ECE10US24
BrandXP Power
€25.32
Each
units
24 V dc - 410mA 10W 1 85 → 264 V ac, 120 → 370 V dc PCB Mount Encapsulated 38.1mm 25.4mm 15.24mm 24g 83% +70°C
RS Stock No. 916-3939
BrandRS PRO
€63.75
Each
units
12 V dc - 10A 120W 18 100 → 240V ac Wall Mount Enclosed 250mm 215mm 59mm 1.9kg 81% +45°C
RS Stock No. 813-9027
Mfr. Part No.HWS30A-12/A
BrandTDK-Lambda
€73.78
Each
units
12 V dc - 2.5A 30W 1 85 → 265 V ac, 120 → 370 V dc Chassis Mount Enclosed 82mm 26.5mm 95mm 220g 88% +50°C
RS Stock No. 711-2614
BrandRS PRO
€42.64
Each
units
12 V dc - 3A 36W 1 88 → 264V ac Chassis Mount Enclosed 78mm 51mm 28mm 180g 86% +71°C
RS Stock No. 106-5852
Mfr. Part No.LRS-150F-24RS
BrandMean Well
€38.60
Each
units
24 V dc - 6.5A 156W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Enclosed 159mm 97mm 30mm 480g 89% +70°C
RS Stock No. 770-3270
Mfr. Part No.TXM 035-112
BrandTRACOPOWER
€28.00
Each
units
12 V dc TXL 3A 35W 1 90 → 264V ac Chassis Mount Enclosed 102mm 64mm 33mm 200g 84% +70°C
RS Stock No. 183-0127
Mfr. Part No.LPT63
€59.91
Each
units
±15 V dc, 5 V dc - 1 A, 3.3 A, 8 A 60W 3 85 → 264 V ac, 120 → 300 V dc Chassis Mount Open Frame 127mm 76.2mm 42.9mm 340g 70% +50°C
RS Stock No. 418-2162
Mfr. Part No.TXL 035-3.3S
BrandTRACOPOWER
€46.83
Each
units
3.3 V dc - 9A 35W 1 85 → 264 V ac, 120 → 375 V dc Chassis Mount Enclosed 109mm 82mm 35mm 300g 70 → 84% +70°C
RS Stock No. 466-6878
Mfr. Part No.TXL 035-1515D
BrandTRACOPOWER
€56.53
Each
units
±15 V dc TXL 1.5 A, 2.4 A 35W 2 85 → 264V ac Chassis Mount Enclosed 109mm 82mm 35mm 300g 70 → 84% +70°C
RS Stock No. 815-9337
Mfr. Part No.PLA150F-36
BrandCosel
€66.91
Each
units
36 V dc - 4.2A 151W 1 85 → 264V ac Chassis Mount Open Frame 97mm 41mm 129mm 600g 90% +70°C
RS Stock No. 770-3248
Mfr. Part No.TXM 015-105
BrandTRACOPOWER
€20.75
Each
units
5 V dc - 3A 15W 1 90 → 264V ac Chassis Mount Enclosed 79mm 51mm 29mm 165g 78% +70°C
RS Stock No. 122-7575
Mfr. Part No.VCT60US24
BrandXP Power
€22.87
Each
units
24 V dc - 2.5A 60W 1 85 → 264V ac Chassis Mount Open Frame 101.6mm 50.8mm 20mm 130g 88% +70°C
RS Stock No. 231-7805
Mfr. Part No.CA600 24G
BrandTDK-Lambda
€850.34
Each
units
24 V dc - 25A 600W 1 90 → 264 V ac, 160 → 358 V dc Rack Mount Enclosed 323mm 126.5mm 63mm 2.3kg 75% +70°C
RS Stock No. 621-0685
Mfr. Part No.RS-150-24
BrandMean Well
€29.76
Each
units
24 V dc - 6.5A 156W 1 88 → 132 V ac, 176 → 264 V ac, 248 → 373 V dc Chassis Mount Enclosed 199mm 98mm 38mm 700g 86% +70°C