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. 408-4298
Mfr. Part No.V6FFS 24V25A
BrandTDK-Lambda
MYR2,697.25
Each
units
24 V dc - 25A 650W 1 90 → 264 V ac, 130 → 330 V dc Chassis Mount Enclosed 268.4mm 127mm 63.5mm 2kg 75% +50°C
RS Stock No. 833-8148
Mfr. Part No.MAP55-1024
MYR1,825.59
Each
units
24 V dc - 2.5A 55W 1 90 → 132 V ac, 175 → 264 V ac U Bracket U Bracket 152.4mm 83.1mm 40.6mm 550g 73 (Min.)% +70°C
RS Stock No. 413-605
Mfr. Part No.RS-15-24
BrandMean Well
MYR51.24
Each
units
24 V dc - 625mA 15W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Enclosed 62.5mm 51mm 28mm 130g 82% +70°C
RS Stock No. 621-0679
Mfr. Part No.RS-100-24
BrandMean Well
MYR173.40
Each
units
24 V dc - 4.5A 108W 1 88 → 264 V ac, 125 → 373 V dc Chassis Mount Enclosed 159mm 97mm 38mm 600g 84% +70°C
RS Stock No. 106-5852
Mfr. Part No.LRS-150F-24RS
BrandMean Well
MYR135.60
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. 106-5825
Mfr. Part No.LRS-35-24
BrandMean Well
MYR78.43
Each
units
24 V dc - 1.5A 36W 1 85 → 264 V ac, 120 → 373 V dc Chassis Mount Enclosed 99mm 82mm 30mm 230g 88% +70°C
RS Stock No. 848-1870
Mfr. Part No.GLC65BG
MYR949.65
Each
units
±12 V dc, 5.1 V dc - - 60W 3 90 → 264V ac Chassis Mount Open Frame - - - - - -
RS Stock No. 644-7067
Mfr. Part No.RD-50A
BrandMean Well
MYR135.43
Each
units
5 V dc, 12 V dc - 2 A, 6 A 54W 2 88 → 264 V ac, 125 → 373 V dc Chassis Mount Enclosed 99mm 97mm 36mm 410g 79% +70°C
RS Stock No. 815-7472
Mfr. Part No.RSP-500-24RS
BrandMean Well
MYR602.37
Each
units
24 V dc - 21A 504W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Enclosed 230mm 127mm 40.5mm 1.3kg 89% +70°C
RS Stock No. 489-8687
Mfr. Part No.PBA150F-24-N
BrandCosel
MYR782.37
Each
units
24 V dc - 6.5A 156W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Enclosed 168mm 93mm 34mm 560g 85 %, 88 % +71°C
RS Stock No. 449-3096
Mfr. Part No.TXL 025-05S
BrandTRACOPOWER
MYR230.73
Each
units
5 V dc TXL 5A 25W 1 85 → 264V ac Chassis Mount Enclosed 93mm 51mm 28.5mm 190g 70 → 84% +70°C
RS Stock No. 106-5824
Mfr. Part No.LRS-35-15RS
BrandMean Well
MYR67.02
Each
units
15 V dc - 2.4A 36W 1 85 → 264 V ac, 120 → 373 V dc Chassis Mount Enclosed 99mm 82mm 30mm 230g 86% +70°C
RS Stock No. 644-7118
Mfr. Part No.RD-85A
BrandMean Well
MYR215.33
Each
units
5 V dc, 12 V dc - 4 A, 8 A 88W 2 88 → 264 V ac, 125 → 373 V dc Chassis Mount Enclosed 159mm 97mm 38mm 600g 78% +70°C
RS Stock No. 621-0584
Mfr. Part No.RS-25-24
BrandMean Well
MYR59.02
Each
units
24 V dc - 1.1A 26W 1 88 → 264 V ac, 125 → 373 V dc Chassis Mount Enclosed 78mm 51mm 28mm 200g 86% +70°C
RS Stock No. 466-7180
Mfr. Part No.TXL 060-12S
BrandTRACOPOWER
MYR322.40
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. 603-1094
Mfr. Part No.PBA600F-24
BrandCosel
MYR2,680.75
Each
units
24 V dc - 27A 648W 1 85 → 264 V ac, 120 → 350 V dc Chassis Mount Open Frame 221mm 120mm 61mm 1.6kg 84% +71°C
RS Stock No. 629-5585
Mfr. Part No.NFS40-7608J
MYR198.56
Each
units
±12 V dc, 5.1 V dc - 2 A, 3 A, 350 mA 40W 3 85 → 264 V ac, 120 → 370 V dc Chassis Mount Open Frame 5in 3in 1.2in 280g 70% +70°C
RS Stock No. 413-649
Mfr. Part No.RQ-85D
BrandMean Well
MYR299.92
Each
units
5 V dc, 12 V dc, 24 V dc - 1 A, 2 A, 6 A, 500 mA 84W 4 88 → 264 V ac, 125 → 373 V dc Chassis Mount Enclosed 159mm 97mm 38mm 600g 78% +70°C
RS Stock No. 192-1245
Mfr. Part No.LPQ252-C
MYR1,828.05
Each
units
±12 V dc, 5 V dc - 6 A, 10 A, 35 A 250W 4 85 → 264 V ac, 120 → 300 V dc Chassis Mount Enclosed 262mm 127mm 76.2mm 1.4kg 75% +50°C
RS Stock No. 770-4049
Mfr. Part No.RSP-320-5RS
BrandMean Well
MYR289.18
Each
units
5 V dc - 60A 300W 1 88 → 264 V ac, 124 → 370 V dc Chassis Mount Enclosed 215mm 115mm 30mm 900g 85% +70°C