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庫存編號 466-7203
製造零件編號TXL 060-24S
BrandTRACOPOWER
HK$483.18
單位
24 V dc - 2.5A 60W 85 264V ac 1 Chassis Mount Enclosed 109mm 82mm 35mm - - 300g
RS庫存編號 706-6085
製造零件編號TML 20512
BrandTRACOPOWER
HK$526.26
單位
5/±12 V dc - 2.8 A, 250 mA 20W 90 264 V ac, 100 375 V dc 3 PCB Mount Encapsulated 70mm 48mm 22mm - - 110g
RS庫存編號 706-6151
製造零件編號TML 20512C
BrandTRACOPOWER
HK$610.95
單位
5/±12 V dc - 2.8 A, 250 mA 20W 90 264 V ac, 100 375 V dc 3 Chassis Mount Encapsulated 96mm 54.6mm 27.6mm - - 155g
RS庫存編號 892-0630
製造零件編號TMPS 05-105
BrandTRACOPOWER
HK$160.13
單位
5 V dc - 1.3A 5W 85 264V ac 1 Through Hole Encapsulated 25.4mm 25.4mm 15.3mm - - -
RS庫存編號 418-2308
製造零件編號TXL 060-0534TI
BrandTRACOPOWER
HK$897.88
單位
5/12/24 V dc - 1.2 A, 1.5 A, 6 A 60W 85 264 V ac, 120 375 V dc 3 Chassis Mount Enclosed 169mm 95mm 38mm - - 700g
RS庫存編號 706-6060
製造零件編號TML 20124
BrandTRACOPOWER
HK$452.22
單位
24 V dc - 840mA 20W 90 264 V ac, 100 375 V dc 1 PCB Mount Encapsulated 70mm 48mm 22mm - - 110g
RS庫存編號 706-6120
製造零件編號TML 40512
BrandTRACOPOWER
HK$844.04
單位
5/±12 V dc - 5 A, 600 mA 40W 90 264 V ac, 100 375 V dc 3 PCB Mount Encapsulated 89mm 63.5mm 25mm - - 280g
RS庫存編號 418-2229
製造零件編號TXL 060-05S
BrandTRACOPOWER
HK$545.93
單位
5 V dc - 12A 60W 85 264 V ac, 120 375 V dc 1 Chassis Mount Enclosed 169mm 95mm 38mm - - 700g
RS庫存編號 706-6013
製造零件編號TMLM 04105
BrandTRACOPOWER
HK$144.64
單位
5 V dc - 800mA 4W 90 264V ac 1 PCB Mount Encapsulated 36.5mm 27mm 17.1mm - - 26g
RS庫存編號 664-1509
製造零件編號TMP 30212C
BrandTRACOPOWER
HK$777.37
單位
±12 V dc - 1.3A 30W 85 264 V ac, 120 370 V dc 2 Chassis Mount Encapsulated 112mm 63.8mm 25.6mm - - 191g
RS庫存編號 418-2409
製造零件編號TXL 100-0534TI
BrandTRACOPOWER
HK$956.34
單位
5/12/24 V dc - 2 A, 4 A, 12 A 100W 85 264V ac 3 Chassis Mount Enclosed 208mm 95mm 38mm - - 800g
RS庫存編號 131-987
製造零件編號TMT 15112C
BrandTRACOPOWER
HK$599.66
單位
12 V dc - 1.25A 15W 85 264 V ac, 85 370 V dc 1 Chassis Mount Encapsulated 77mm 45mm 26.4mm - - 90g
RS庫存編號 418-2257
製造零件編號TXL 060-0512DI
BrandTRACOPOWER
HK$681.85
單位
5/12 V dc - 4 A, 8 A 60W 85 264 V ac, 120 375 V dc 2 Chassis Mount Enclosed 169mm 95mm 38mm - - 700g
RS庫存編號 706-6136
製造零件編號TML 20105C
BrandTRACOPOWER
HK$525.69
單位
5 V dc - 4A 20W 90 264 V ac, 100 375 V dc 1 Chassis Mount Encapsulated 96mm 54.6mm 27.6mm - - 155g
RS庫存編號 830-3228
製造零件編號TMPS 03-105
BrandTRACOPOWER
HK$140.22
單位
5 V dc - 600mA 3W 85 264 V, 120 370 V 1 PCB Mount Encapsulated 25.4mm 25.4mm 15.3mm - - 17.4g
RS庫存編號 706-6293
製造零件編號TXL 150-05S
BrandTRACOPOWER
HK$831.41
單位
5 V dc - 30A 150W 85 264V ac 1 Chassis Mount Enclosed 211mm 99mm 50mm - - 890g
RS庫存編號 418-2386
製造零件編號TXL 100-0522TI
BrandTRACOPOWER
HK$956.34
單位
5/12 V dc - 1.5 A, 5 A, 12 A 100W 85 264V ac 3 Chassis Mount Enclosed 208mm 95mm 38mm - - 800g
RS庫存編號 665-5811
製造零件編號TEX 120-112
BrandTRACOPOWER
HK$2,940.44
單位
12 V dc - 8A 96W 85 264 V ac, 85 375 V dc 1 Chassis Mount Enclosed 174mm 93mm 56mm - - 1kg
RS庫存編號 706-6161
製造零件編號TML 40112C
BrandTRACOPOWER
HK$755.58
單位
12 V dc - 3.333A 40W 90 264 V ac, 100 375 V dc 1 Chassis Mount Encapsulated 112mm 63.7mm 32.5mm - - 325g
RS庫存編號 418-2077
製造零件編號TML 30112
BrandTRACOPOWER
HK$745.41
單位
12 V dc - 2.5A 30W 85 264 V ac, 100 370 V dc 1 PCB Mount Encapsulated 88.9mm 63.5mm 25mm - - 230g