Embedded Switch Mode Power Supplies (SMPS)

What are Embedded Switch Mode Power Supplies?


A switch mode power supplies 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 Input Voltage Number of Outputs Mounting Type Package Type Length Width Depth Ripple And Noise Load Regulation Weight
RS Stock No. 200-213
Mfr. Part No.HWS1500-24/HD
BrandTDK-Lambda
SGD2,545.83
Each
units
24 V dc - 70A 1.5kW 85 → 265 V ac, 120 → 330 V dc 1 Rack Mount Enclosed 11in 3.25in 5in - - 3.8kg
RS Stock No. 813-9064
Mfr. Part No.HWS-100A-24/A
BrandTDK-Lambda
SGD165.74
Each
units
24 V dc - 4.5A 100W 85 → 265 V ac, 120 → 370 V dc 1 Chassis Mount Enclosed 82mm 28mm 160mm - - 450g
RS Stock No. 635-2199
Mfr. Part No.HWS600-24
BrandTDK-Lambda
SGD951.57
Each
units
24 V dc - 27A 648W 85 → 265 V ac, 120 → 330 V dc 1 Chassis Mount Enclosed 6.5in 3.23in 3.94in - - 1.6kg
RS Stock No. 680-2701
Mfr. Part No.LS25-12
BrandTDK-Lambda
SGD33.65
Each
units
12 V dc - 2.1A 25W 88 → 264 V ac, 125 → 373 V dc 1 Chassis Mount Enclosed 3.1in 2in 1.1in - - 170g
RS Stock No. 751-1239
Mfr. Part No.GWS500-24
BrandTDK-Lambda
SGD402.76
Each
units
24 V dc - 21A 504W 85 → 265 V ac, 120 → 373 V dc 1 Chassis Mount Enclosed 218mm 105mm 41mm - - 1kg
RS Stock No. 278-6302
Mfr. Part No.JWS100-24/A
BrandTDK-Lambda
SGD365.27
Each
units
24 V dc - 4.5A 108W 85 → 265 V ac, 120 → 330 V dc 1 Chassis Mount Enclosed 188mm 92mm 50mm - - 650g
RS Stock No. 680-2691
Mfr. Part No.LS25-5
BrandTDK-Lambda
SGD34.77
Each
units
5 V dc - 5A 25W 88 → 264 V ac, 125 → 373 V dc 1 Chassis Mount Enclosed 3.1in 2in 1.1in - - 170g
RS Stock No. 259-855
Mfr. Part No.JWS 150 24A HFP
BrandTDK-Lambda
SGD269.08
Each
units
24 V dc - 6.5A 150W 85 → 265 V ac, 120 → 330 V dc 1 Chassis Mount Enclosed 198mm 92mm 65mm - - 850g
RS Stock No. 477-0040
Mfr. Part No.RTW24-2R2C
BrandTDK-Lambda
SGD247.99
Each
units
24 V dc - 2.2A 52.8W 85 → 265 V ac, 120 → 370 V dc 1 Chassis Mount Enclosed 4.88in 3.23in 0.87in - - 290g
RS Stock No. 680-2827
Mfr. Part No.LS150-24
BrandTDK-Lambda
SGD81.24
Each
units
24 V dc - 6.5A 150W 248 → 273V dc 1 Chassis Mount Enclosed 7.8in 3.9in 1.5in - - 700g
RS Stock No. 680-2742
Mfr. Part No.LS50-12
BrandTDK-Lambda
SGD59.81
Each
units
12 V dc - 4.2A 50W 88 → 264 V ac, 125 → 373 V dc 1 Chassis Mount Enclosed 3.9in 3.8in 1.4in - - 350g
RS Stock No. 377-0746
Mfr. Part No.ZWQ130-5225/A
BrandTDK-Lambda
SGD333.27
Each
units
5/±12/±15 V dc - 4 A, 10 A, 15 A 130W 85 → 265 V ac, 120 → 370 V dc 4 Chassis Mount Open Frame 225mm 35mm 106mm - - 730g
RS Stock No. 177-854
Mfr. Part No.HWS1500-12
BrandTDK-Lambda
SGD1,585.52
Each
units
12 V dc - 125A 1.5kW 85 → 265 V ac, 120 → 330 V dc 1 Chassis Mount Enclosed 11in 3.25in 5in - - 3.8kg
RS Stock No. 635-2177
Mfr. Part No.HWS300-24
BrandTDK-Lambda
SGD593.27
Each
units
24 V dc - 14A 336W 85 → 265 V ac, 120 → 330 V dc 1 Chassis Mount Enclosed 6.5in 3.23in 2.4in - - 1kg
RS Stock No. 278-6217
Mfr. Part No.JWS50-5/A
BrandTDK-Lambda
SGD201.77
Each
units
5 V dc - 10A 50W 85 → 265 V ac, 120 → 330 V dc 1 Chassis Mount Enclosed 159mm 85mm 37mm - - 350g
RS Stock No. 177-860
Mfr. Part No.HWS1500-24
BrandTDK-Lambda
SGD1,931.74
Each
units
24 V dc - 70A 1.5kW 85 → 265 V ac, 120 → 330 V dc 1 Chassis Mount Enclosed 11in 3.25in 5in - - 3.8kg
RS Stock No. 680-2754
Mfr. Part No.LS50-24
BrandTDK-Lambda
SGD40.10
Each
units
24 V dc - 2.2A 50W 88 → 264 V ac, 125 → 373 V dc 1 Chassis Mount Enclosed 3.9in 3.8in 1.4in - - 350g
RS Stock No. 377-0768
Mfr. Part No.ZWQ130-5224/A
BrandTDK-Lambda
SGD332.60
Each
units
5/±12/±15/24 V dc - 2 A, 4 A, 15 A 130W 85 → 265 V ac, 120 → 370 V dc 4 Chassis Mount Open Frame 225mm 35mm 106mm - - 730g
RS Stock No. 466-5910
Mfr. Part No.SWS75-24
BrandTDK-Lambda
SGD76.15
Each
units
24 V dc - 3.2A 75W 85 → 265 V ac, 120 → 370 V dc 1 Enclosed Enclosed 6.69in 1.69in 3.7in - - 480g
RS Stock No. 813-9070
Mfr. Part No.HWS-150A-12/A
BrandTDK-Lambda
SGD215.33
Each
units
12 V dc - 13A 150W 85 → 265 V ac, 120 → 370 V dc 1 Chassis Mount Enclosed 82mm 37mm 160mm - - 500g