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. 122-7058
Mfr. Part No.ECM100UT33
BrandXP Power
TWD4,246.00
Each
units
±15 V dc, 5 V dc - 3 A, 10 A, 800 mA 100W 3 90 → 264 V ac, 120 → 370 V dc Chassis Mount Open Frame 114.3mm 63.5mm 27mm 180g - +70°C
RS Stock No. 122-7189
Mfr. Part No.SDS60UT06
BrandXP Power
TWD2,030.00
Each
units
±12 V dc, ±5 V dc - 3 A, 6 A, 800 mA 63W 3 90 → 264 V ac, 120 → 370 V dc Chassis Mount Open Frame 127mm 76.2mm 30.5mm 240g 80% +70°C
RS Stock No. 122-7075
Mfr. Part No.ECM40UT33
BrandXP Power
TWD2,103.00
Each
units
±15 V dc, 5 V dc - 1.5 A, 6 A, 500 mA 40W 3 90 → 264 V ac, 120 → 370 V dc Chassis Mount Open Frame 101.6mm 50.8mm 27mm 150g - +70°C
RS Stock No. 122-7169
Mfr. Part No.GSP500PS12-EF
BrandXP Power
TWD9,327.00
Each
units
12 V dc - 42A 500W 1 80 → 264V ac Chassis Mount Enclosed 170.4mm 101.6mm 41.9mm 900g - +70°C
RS Stock No. 122-7864
Mfr. Part No.SHP650PS28-EF
BrandXP Power
TWD7,970.00
Each
units
28 V dc - 23A 655W 1 80 → 264V ac Chassis Mount Enclosed 233.2mm 101.6mm 63.5mm 1.3kg 85% +70°C
RS Stock No. 122-7184
Mfr. Part No.SDS60US15
BrandXP Power
TWD1,745.00
Each
units
15 V dc - 4.2A 63W 1 90 → 264 V ac, 120 → 370 V dc Chassis Mount Open Frame 127mm 76.2mm 30.5mm 240g 80% +70°C
RS Stock No. 122-7073
Mfr. Part No.ECM40UT31
BrandXP Power
TWD1,496.00
Each
units
±12 V dc, 5 V dc - 2 A, 6 A, 500 mA 40W 3 90 → 264 V ac, 120 → 370 V dc Chassis Mount Open Frame 101.6mm 50.8mm 27mm 150g - +70°C
RS Stock No. 122-7643
Mfr. Part No.GCS350PS24
BrandXP Power
TWD4,716.00
Each
units
24 V dc - 14.6A 350W 1 85 → 264V ac Chassis Mount Open Frame 127mm 76.2mm 36.3mm 290g - +70°C
RS Stock No. 122-7056
Mfr. Part No.ECM100UT31
BrandXP Power
TWD4,202.00
Each
units
±12 V dc, 5 V dc - 3 A, 10 A, 800 mA 100W 3 90 → 264 V ac, 120 → 370 V dc Chassis Mount Open Frame 114.3mm 63.5mm 27mm 180g - +70°C
RS Stock No. 122-7884
Mfr. Part No.ASB110PS24
BrandXP Power
TWD6,253.00
Each
units
24 V dc - 4.58A 110W 1 85 → 264V ac PCB Mount Encapsulated 116.8mm 61mm 17mm 230g 91% +85°C
RS Stock No. 122-7067
Mfr. Part No.ECM40US12
BrandXP Power
TWD1,175.00
Each
units
12 V dc - 3.5A 40W 1 90 → 264 V ac, 120 → 370 V dc Chassis Mount Open Frame 101.6mm 50.8mm 27mm 150g - +70°C
RS Stock No. 122-7085
Mfr. Part No.ECM60US24
BrandXP Power
TWD13,009.00
Each
units
24 V dc - 2.5A 60W 1 90 → 264 V ac, 120 → 370 V dc Chassis Mount Open Frame 101.6mm 50.8mm 27mm 150g - +70°C
RS Stock No. 122-7677
Mfr. Part No.ECE40US24
BrandXP Power
TWD2,061.00
Each
units
24 V dc - 1.67A 40W 1 85 → 264 V ac, 120 → 370 V dc PCB Mount Encapsulated 78.7mm 38.1mm 27.9mm 150g 85% +70°C
RS Stock No. 122-7700
Mfr. Part No.ECL05US05-T
BrandXP Power
TWD699.00
Each
units
5 V dc - 1A 5W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Open Frame 65mm 25.4mm 18.5mm 26g 75% +70°C
RS Stock No. 122-7559
Mfr. Part No.VCP05US05
BrandXP Power
TWD427.00
Each
units
5 V dc - 1A 5W 1 90 → 264V ac PCB Mount Open Frame 58.5mm 35.5mm 18.62mm 20g - +70°C
RS Stock No. 122-7170
Mfr. Part No.GSP500PS24-EF
BrandXP Power
TWD9,327.00
Each
units
24 V dc - 21A 500W 1 80 → 264V ac Chassis Mount Enclosed 170.4mm 101.6mm 41.9mm 900g - +70°C
RS Stock No. 122-7902
Mfr. Part No.SDS120PT08B
BrandXP Power
TWD4,309.00
Each
units
±12 V dc, 5 V dc - 6 A, 15 A, 800 mA 120W 3 90 → 264 V ac, 120 → 370 V dc Chassis Mount Enclosed 127mm 81.4mm 39.2mm 450g 80% +70°C
RS Stock No. 122-7064
Mfr. Part No.ECM40US05
BrandXP Power
TWD1,175.00
Each
units
5 V dc - 8A 40W 1 90 → 264 V ac, 120 → 370 V dc Chassis Mount Open Frame 101.6mm 50.8mm 27mm 150g - +70°C
RS Stock No. 122-7584
Mfr. Part No.ECP130PS12
BrandXP Power
TWD2,137.00
Each
units
12 V dc - 10.83A 130W 1 85 → 264V ac Chassis Mount Open Frame 76.2mm 50.8mm 24.1mm 195g - +80°C
RS Stock No. 122-7146
Mfr. Part No.ECS65US12
BrandXP Power
TWD1,223.00
Each
units
12 V dc - 5.4A 65W 1 80 → 264 V ac, 120 → 370 V dc Chassis Mount Open Frame 101.6mm 50.8mm 23.2mm 175g - +70°C