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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รายละเอียดสินค้า / Description ราคา / 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. 674-1669
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RSP-3000-48
Brand :Mean Well
THB25,743.31
Each
Units
48 V dc - 62.5A 3kW 1 180 → 264 V ac, 254 → 370 V dc Chassis Mount Enclosed 278mm 177.8mm 63.5mm 4kg 90.5% +70°C
RS Stock No. 770-4074
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RSP-750-48RS
Brand :Mean Well
THB9,617.41
Each
Units
48 V dc - 15.7A 753.6W 1 90 → 264 V ac, 127 → 370 V dc Chassis Mount Enclosed 250mm 127mm 41mm 1.6kg 92% +70°C
RS Stock No. 667-5760
Brand :RS PRO
THB527.80
Each
Units
5 V dc - 600mA 3W 1 85 → 264 V ac, 110 → 370 V dc PCB Mount Encapsulated 37mm 23mm 15mm 25g 72% +70°C
RS Stock No. 739-8010
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ZWS150BAF-24
Brand :TDK-Lambda
THB3,628.41
Each
Units
24 V dc - 6.3A 151W 1 85 → 265 V ac, 120 → 370 V dc Chassis Mount Open Frame 188mm 47mm 85mm 390g 90% +70°C
RS Stock No. 753-8032
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.O/P 1
Brand :Vox Power
THB2,829.80
Each
Units
1.5 → 7.5V O/P 1 25A 125W 1 - Rack Mount Open Frame 60mm 35mm 17mm 60g - +85°C
RS Stock No. 680-2824
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LS150-15
Brand :TDK-Lambda
THB1,683.37
Each
Units
15 V dc - 10A 150W 1 88 → 132 V ac, 176 → 264 V ac, 248 → 273 V dc Chassis Mount Enclosed 7.8in 3.9in 1.5in 700g 85% +70°C
RS Stock No. 777-5095
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ZWS30B-5
Brand :TDK-Lambda
THB1,690.30
Each
Units
5 V dc - 6A 30W 1 85 → 265 V ac, 120 → 370 V dc Chassis Mount Open Frame 105mm 50mm 26mm 105g 82% +70°C
RS Stock No. 680-2754
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LS50-24
Brand :TDK-Lambda
THB1,211.73
Each
Units
24 V dc - 2.2A 50W 1 88 → 264 V ac, 125 → 373 V dc Chassis Mount Enclosed 3.9in 3.8in 1.4in 350g 86% +70°C
RS Stock No. 603-1072
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PBA30F-9-N
Brand :Cosel
THB2,231.11
Each
Units
9 V dc - 3.4A 30.6W 1 85 → 264 V ac, 110 → 370 V dc Chassis Mount Enclosed 119.5mm 34.5mm 78mm 270g 75 %, 77 % +71°C
RS Stock No. 122-7873
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.VCS50US12
Brand :XP Power
THB654.30
Each
Units
12 V dc - 4.2A 50W 1 85 → 264 V ac, 127 → 370 V dc Chassis Mount Enclosed 110.5mm 78mm 35mm 250g 85% +70°C
RS Stock No. 770-4059
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RSP-750-12
Brand :Mean Well
THB7,378.50
Each
Units
12 V dc - 62.5A 750W 1 90 → 264 V ac, 127 → 370 V dc Chassis Mount Enclosed 250mm 127mm 41mm 1.6kg 87% +70°C
RS Stock No. 106-5867
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LRS-350-12RS
Brand :Mean Well
THB1,945.95
Each
Units
12 V dc - 29A 348W 1 90 → 132 V ac, 180 → 264 (By Switch) V ac, 240 → 370 V dc Chassis Mount Enclosed 215mm 115mm 30mm 760g 85% +70°C
RS Stock No. 833-8158
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MAP55-4003
THB12,260.53
Each
Units
±12 V dc, ±5 V dc - 2.5 A, 6 A, 500 mA 55W 4 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. 901-1393
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RAC02-05SE/277
Brand :Recom
THB600.41
Each
Units
5 V dc - 400mA 2W 1 85 → 305 V ac, 120 → 430 V dc PCB Mount Encapsulated 33.7mm 22.2mm 17.75mm 24.5g 70% +85°C
RS Stock No. 122-7794
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ECL30UD03-S
Brand :XP Power
THB2,726.13
Each
Units
5 V dc, 12 V dc - 1.3 A, 3 A 30W 2 85 → 264 V ac, 120 → 370 V dc Chassis Mount Encapsulated 96mm 40mm 28.5mm 175g 81% +70°C
RS Stock No. 833-7436
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MPB125-4350G
THB4,046.65
Each
Units
3.3 V dc, 5 V dc - 5 A, 10 A, 15 A, 500 mA 125W 4 90 → 264V ac Chassis Mount Open Frame 127mm 76.2mm 26.9mm 300g 85% +50°C
RS Stock No. 644-7073
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RD-35A
Brand :Mean Well
THB794.39
Each
Units
5 V dc, 12 V dc - 1 A, 4 A 32W 2 88 → 264 V ac, 125 → 373 V dc Chassis Mount Enclosed 99mm 82mm 36mm 300g - +70°C
RS Stock No. 603-0912
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PBA10F-12-N
Brand :Cosel
THB1,179.06
Each
Units
12 V dc - 900mA 10.8W 1 85 → 264 V ac, 110 → 370 V dc Chassis Mount Enclosed 84.5mm 34.5mm 78mm 150g 76% +71°C
RS Stock No. 166-6757
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RAC02-05SE/277
Brand :Recom
THB12,545.87
1 Tube of 22
Tube(s)
5 V dc - 400mA 2W 1 85 → 305 V ac, 120 → 430 V dc Through Hole Encapsulated 33.7mm 22.2mm 17.75mm 24.5g 70% +85°C
RS Stock No. 777-3433
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RAC10-05SC/277
Brand :Recom
THB1,062.65
Each
Units
5 V dc - 2A 10W 1 80 → 305V ac PCB Mount Encapsulated 52.4mm 27.4mm 23.5mm 62g 78% +75°C