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


...
Read more Read less

Filters

Viewing 81 - 100 of 4368 products
Results per page
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. 680-2726
Mfr. Part No.LS35-12
BrandTDK-Lambda
MYR99.05
Each
units
12 V dc - 3A 35W 1 88 → 264 V ac, 125 → 373 V dc Chassis Mount Enclosed 3.9in 3.2in 1.4in 270g 82% +70°C
RS Stock No. 813-9137
Mfr. Part No.RWS600B-24
BrandTDK-Lambda
MYR923.22
Each
units
24 V dc - 25A 600W 1 85 → 265 V ac, 120 → 370 V dc Chassis Mount Enclosed 61mm 120mm 190mm 1.6kg 85 %, 88 % +70°C
RS Stock No. 644-8357
Mfr. Part No.RSP-1500-24
BrandMean Well
MYR1,795.54
Each
units
24 V dc - 63A 1.5kW 1 90 → 264 V ac, 127 → 370 V dc Chassis Mount Enclosed 278mm 127mm 83.5mm 3kg 90% +70°C
RS Stock No. 524-7973
Mfr. Part No.RTW24-4R2C
BrandTDK-Lambda
MYR841.52
Each
units
24 V dc - 4.2A 100.8W 1 85 → 265 V ac, 150 → 340 V dc Chassis Mount Enclosed 6.3in 3.23in 0.98in 450g - +71°C
RS Stock No. 678-3773
Mfr. Part No.RS-75-5
BrandMean Well
MYR129.61
Each
units
5 V dc - 12A 60W 1 88 → 264 V ac, 125 → 373 V dc Chassis Mount Enclosed 129mm 97mm 38mm 410g 79% +70°C
RS Stock No. 122-7900
Mfr. Part No.SDS120PS24B
BrandXP Power
MYR565.10
Each
units
24 V dc - 5A 120W 1 90 → 264 V ac, 120 → 370 V dc Chassis Mount U Bracket 127mm 81.4mm 39.2mm 450g 80% +70°C
RS Stock No. 813-9064
Mfr. Part No.HWS100A-24/A
BrandTDK-Lambda
MYR571.52
Each
units
24 V dc - 4.5A 100W 1 85 → 265 V ac, 120 → 370 V dc Chassis Mount Enclosed 82mm 28mm 160mm 450g 89% +50°C
RS Stock No. 500-336
Mfr. Part No.116-010015G
BrandEplax
MYR1,611.16
Each
units
±15 V dc - 1A 30W 2 94 → 253V ac Rack Mount Enclosed 162mm 128.5mm 40.24mm 850g 80% +75°C
RS Stock No. 644-8290
Mfr. Part No.PSP-600-48
BrandMean Well
MYR1,044.42
Each
units
48 V dc - 12.5A 600W 1 88 → 264 V ac, 124 → 370 V dc Chassis Mount Enclosed 170mm 120mm 93mm 1.9kg 87% +60°C
RS Stock No. 664-1446
Mfr. Part No.TMP 30515
BrandTRACOPOWER
MYR323.02
Each
units
±15 V dc, 5 V dc - 3 A, 500 mA 30W 3 85 → 264 V ac, 120 → 370 V dc PCB Mount Encapsulated 88.9mm 63.5mm 21.5mm 177g 76% +60°C
RS Stock No. 413-683
Mfr. Part No.RT-125B
BrandMean Well
MYR251.23
Each
units
±12 V dc, 5 V dc - 1 A, 5 A, 12 A 132W 3 88 → 132 V ac, 176 → 264 V ac, 248 → 373 V dc Chassis Mount Enclosed 199mm 98mm 38mm 700g 80% +70°C
RS Stock No. 413-667
Mfr. Part No.RS-15-12
BrandMean Well
MYR63.93
Each
units
12 V dc - 1.3A 15.6W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Enclosed 62.5mm 51mm 28mm 130g 81% +70°C
RS Stock No. 770-4061
Mfr. Part No.RSP-750-24RS
BrandMean Well
MYR955.65
Each
units
24 V dc - 31.3A 751W 1 90 → 264 V ac, 127 → 370 V dc Chassis Mount Enclosed 250mm 127mm 41mm 1.6kg 90.5% +70°C
RS Stock No. 786-4725
BrandRS PRO
MYR72.28
Each
units
3.3 V dc - 1A 3.3W 1 85 → 264 V ac, 100 → 400 V dc PCB Mount Ultra-Miniature 42mm 11mm 24mm - 65% +85°C
RS Stock No. 603-1139
Mfr. Part No.PBW30F-15-N
BrandCosel
MYR388.25
Each
units
±15 V dc - 1 A, 1.4 A 30W 2 85 → 264 V ac, 110 → 370 V dc Chassis Mount Enclosed 119.5mm 34.5mm 78mm 270g 78 %, 79 % +71°C
RS Stock No. 813-9083
Mfr. Part No.HWS150A-24/A
BrandTDK-Lambda
MYR670.65
Each
units
24 V dc - 6.5A 150W 1 85 → 265 V ac, 120 → 370 V dc Chassis Mount Enclosed 82mm 37mm 160mm 500g 90% +50°C
RS Stock No. 815-7444
Mfr. Part No.RSP-100-12RS
BrandMean Well
MYR196.09
Each
units
12 V dc - 8.5A 102W 1 85 → 264 V ac, 120 → 370 V dc Chassis Mount Enclosed 179mm 99mm 30mm 520g 86% +70°C
RS Stock No. 183-0111
Mfr. Part No.LPT62
MYR266.69
Each
units
±12 V dc, 5 V dc - 1 A, 3.5 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. 680-2827
Mfr. Part No.LS150-24
BrandTDK-Lambda
MYR244.05
Each
units
24 V dc - 6.5A 150W 1 248 → 273V dc Chassis Mount Enclosed 7.8in 3.9in 1.5in 700g 86% +70°C
RS Stock No. 434-2752
Mfr. Part No.TML 30212C
BrandTRACOPOWER
MYR502.34
Each
units
±12 V dc - 1.3A 30W 2 85 → 264 V ac, 100 → 370 V dc Chassis Mount Encapsulated 112mm 64.7mm 31mm 275g 72 → 80% +60°C