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 Input Voltage Number of Outputs Mounting Type Package Type Length Width Depth Ripple And Noise Load Regulation Weight
RS Stock No. 177-0200
Mfr. Part No.TPP 30-112-D
BrandTRACOPOWER
£47.75
Each
Units
12V dc - 2.5A 30W 120 → 370 V dc, 85 → 264 V ac 1 Surface Mount Enclosed 73.3mm 38.1mm 25.6mm - - 106g
RS Stock No. 177-0201
Mfr. Part No.TPP 30-115-D
BrandTRACOPOWER
£47.75
Each
Units
15V dc - 2A 30W 120 → 370 V dc, 85 → 264 V ac 1 Surface Mount Enclosed 73.3mm 38.1mm 25.6mm - - 106g
RS Stock No. 177-0189
Mfr. Part No.TPP 30-105A-D
BrandTRACOPOWER
£37.40
Each
Units
5V dc - 6A 30W 120 → 370 V dc, 85 → 264 V ac 1 PCB Mount Open Frame 69.7mm 34.6mm 19.6mm - - 58g
RS Stock No. 177-0202
Mfr. Part No.TPP 30-124-D
BrandTRACOPOWER
£44.55
Each
Units
24V dc - 1.25A 30W 120 → 370 V dc, 85 → 264 V ac 1 Surface Mount Enclosed 73.3mm 38.1mm 25.6mm - - 106g
RS Stock No. 177-0190
Mfr. Part No.TPP 30-109A-D
BrandTRACOPOWER
£33.75
Each
Units
9V dc - 3.34A 30W 120 → 370 V dc, 85 → 264 V ac 1 PCB Mount Open Frame 69.7mm 34.6mm 19.6mm - - 58g
RS Stock No. 177-0194
Mfr. Part No.TPP 30-136A-D
BrandTRACOPOWER
£30.75
Each
Units
36V dc - 840mA 30W 120 → 370 V dc, 85 → 264 V ac 1 PCB Mount Open Frame 69.7mm 34.6mm 19.6mm - - 58g
RS Stock No. 177-0221
Mfr. Part No.TPP 450-148-M
BrandTRACOPOWER
£194.00
Each
Units
48V dc - 9.4A 450W 120 → 370 V dc, 85 → 264 V ac 1 Screw Mount Enclosed 148.2mm 80mm 40.6mm - - 552g
RS Stock No. 177-0203
Mfr. Part No.TPP 30-136-D
BrandTRACOPOWER
£44.55
Each
Units
36V dc - 840mA 30W 120 → 370 V dc, 85 → 264 V ac 1 Surface Mount Enclosed 73.3mm 38.1mm 25.6mm - - 106g
RS Stock No. 177-0191
Mfr. Part No.TPP 30-112A-D
BrandTRACOPOWER
£33.75
Each
Units
12V dc - 2.5A 30W 120 → 370 V dc, 85 → 264 V ac 1 PCB Mount Open Frame 69.7mm 34.6mm 19.6mm - - 58g
RS Stock No. 177-0180
Mfr. Part No.TPP 30-105-J
BrandTRACOPOWER
£52.60
Each
Units
5V dc - 6A 30W 120 → 370 V dc, 85 → 264 V ac 1 Screw Mount Enclosed 100.3mm 38.1mm 25.4mm - - 119g
RS Stock No. 177-8078
Mfr. Part No.TPP 100-112A-J
BrandTRACOPOWER
£64.50
Each
Units
12V dc - 8.34A 100W 120 → 370 V dc, 85 → 264 V ac 1 Chassis Mount Open Frame 76.2mm 50.8mm 29.5mm - - 156g
RS Stock No. 177-0184
Mfr. Part No.TPP 30-115-J
BrandTRACOPOWER
£48.80
Each
Units
15V dc - 2A 30W 120 → 370 V dc, 85 → 264 V ac 1 Screw Mount Enclosed 100.3mm 38.1mm 25.4mm - - 119g
RS Stock No. 177-0174
Mfr. Part No.TPP 15-115-D
BrandTRACOPOWER
£29.85
Each
Units
15V dc - 1A 15W 120 → 370 V dc, 85 → 264 V ac 1 PCB Mount Enclosed 42mm 28.9mm 21.5mm - - 43g
RS Stock No. 177-8081
Mfr. Part No.TPP 100-128A-J
BrandTRACOPOWER
£63.25
Each
Units
28V dc - 3.58A 100W 120 → 370 V dc, 85 → 264 V ac 1 Chassis Mount Open Frame 76.2mm 50.8mm 29.5mm - - 156g
RS Stock No. 177-0154
Mfr. Part No.TPP 15-105-J
BrandTRACOPOWER
£35.20
Each
Units
5V dc - 3A 15W 120 → 370 V dc, 85 → 264 V ac 1 Screw Mount Enclosed 71.7mm 28.9mm 20.9mm - - 48g
RS Stock No. 177-0195
Mfr. Part No.TPP 30-148A-D
BrandTRACOPOWER
£31.45
Each
Units
48V dc - 630mA 30W 120 → 370 V dc, 85 → 264 V ac 1 PCB Mount Open Frame 69.7mm 34.6mm 19.6mm - - 58g
RS Stock No. 177-0204
Mfr. Part No.TPP 30-148-D
BrandTRACOPOWER
£45.30
Each
Units
48V dc - 630mA 30W 120 → 370 V dc, 85 → 264 V ac 1 Surface Mount Enclosed 73.3mm 38.1mm 25.6mm - - 106g
RS Stock No. 177-8070
Mfr. Part No.TPP 40-105A-J
BrandTRACOPOWER
£40.20
Each
Units
5V dc - 8A 40W 120 → 370 V dc, 85 → 264 V ac 1 Chassis Mount Open Frame 76.2mm 50.8mm 24mm - - 114g
RS Stock No. 177-0213
Mfr. Part No.TPP 450-115A-M
BrandTRACOPOWER
£177.00
Each
Units
15V dc - 16.6 (Natural Convection) A, 30 (Forced Air Cooling) A 450W 120 → 370 V dc, 85 → 264 V ac 1 Screw Mount Open Frame 127mm 76.2mm 40.1mm - - 462g
RS Stock No. 177-0187
Mfr. Part No.TPP 30-148-J
BrandTRACOPOWER
£46.35
Each
Units
48V dc - 630mA 30W 120 → 370 V dc, 85 → 264 V ac 1 Screw Mount Enclosed 100.3mm 38.1mm 25.4mm - - 119g