AC/DC Adapters

An AC/DC adapter, or plug-in power supply, is an electrical device that takes input power from a mains power supply and converts or derives the right current, frequency and voltage to power the component it is attached to. Main power supplies provide power to devices that run on batteries or have no other power source. These are suitable for applications such as chargers, set-top boxes, motor control and other office automation products. A plug-in power supply resides outside the main unit, unlike a computer power supply which is internal.

For popular Raspberry Pi power supplies, visit our sister site OKdo.com and all thing Raspberry Pi and SBC.

How does an AC/DC adapter work?

An AC/DC adapter is made up of a central unit which draws power from an AC outlet, it then converts the power to DC that is used to charge the device. Each AC adapter has a specific power rating, measured in volts or watts that it can handle and the output of a device. Because of the power rating and the type of plug on the end, an AC adapter is not universal and can only be used with devices with the same requirements and connector.

International Plug Power Supplies

Some plug-in power supplies come with interchangeable input connectors that you can swap when traveling to areas with different plug types such as the United Kingdom, USA, Europe, Japan and Australia. They may also come with protection features such as short circuit, over voltage and overload to suit the international safety approvals making them ideal for the global marketplace.

Are all AC/DC Adapters the same?

It is possible to use a power adapter on different devices, but its important to check whether its AC or DC output. Using close to, if not exactly the correct voltage and Amperage. If you're unsure it might be worth investing in a universal power adapter with lots of different plug fittings.


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Description Price Input Voltage Type Output Voltage Plug Type Output Current Maximum Temperature Output Connector Input Connector Number of Outputs Power Rating Length Regulated/Unregulated Cable Length Medical Approved
RS Stock No. 148-963
BrandRS PRO
£11.96
Each
Units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Switched Mode Power Supply 3 V dc, 4.5 V dc, 6 V dc, 7.5 V dc, 9 V dc, 12 V dc Type G 700 1600mA +25°C Interchangeable UK Plug 1 9.6W 82mm - 1.8m -
RS Stock No. 731-6068
BrandRS PRO
£16.94
Each
Units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac - 12V dc Type C 3A +40°C 2.5 x 5.5 x 9.5 mm Centre Positive EU Plug 1 36W 98mm - 1.2m -
RS Stock No. 123-6687
BrandRS PRO
£5.30
Each
Units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Power Supply 5V dc Type G 1A +40°C USB Type A UK Plug 1 5W 47.3mm - - -
RS Stock No. 148-957
BrandRS PRO
£11.96
Each
Units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Switched Mode Power Supply 3 V dc, 4.5 V dc, 6 V dc, 7.5 V dc, 9 V dc, 12 V dc Type C 700 1600mA +25°C Interchangeable EU Plug 1 9.6W 82mm - 1.8m -
RS Stock No. 731-6065
BrandRS PRO
£16.94
Each
Units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac - 24V dc Type C 1.5A +40°C 2.5 x 5.5 x 9.5 mm Centre Positive EU Plug 1 36W 98mm - 1.2m -
RS Stock No. 907-6255
BrandRS PRO
£7.14
Each
Units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac USB Adapter 5V dc Australia, European Plug, UK, US 1A +40°C USB Type A Universal Plug 1 5W 60.9mm - - -
RS Stock No. 726-2980
BrandRS PRO
£20.91
Each
Units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Switched Mode Power Supply 12V dc Type G 3A +40°C 2.1 x 5.5 x 9.5 mm Centre Positive UK Plug 1 36W 64mm - 1.2m -
RS Stock No. 903-2902
BrandRS PRO
£19.28
Each
Units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Power Supply 12V dc European, Interchangeable UK, US Plugtop 3A +40°C 2.1 x 5.5 x 12 mm Centre Positive Universal Plug 1 40W 90mm - 1.5m -
RS Stock No. 731-6024
BrandRS PRO
£15.03
Each
Units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac - 12V dc Australia/China, European Plug, UK, US/Japan 1.66A +40°C 2.5 x 5.5 x 9.5 mm Centre Positive Universal Plug 1 20W 98mm - 1.2m -
RS Stock No. 903-2905
BrandRS PRO
£14.86
Each
Units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Power Supply 12V dc Australia, European Plug, UK, US 2A +40°C 2.1 x 5.5 x 12 mm Centre Positive Universal Plug 1 24W 79.1mm - 1.8m -
RS Stock No. 731-6052
BrandRS PRO
£16.94
Each
Units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac - 24V dc Type C 1.25A +40°C 2.5 x 5.5 x 9.5 mm Centre Positive EU Plug 1 30W 98mm - 1.2m -
RS Stock No. 903-2911
BrandRS PRO
£19.28
Each
Units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Power Supply 24V dc European, Interchangeable UK, US Plugtop 1.7A +40°C 2.1 x 5.5 x 12 mm Centre Positive Universal Plug 1 40W 90mm - 1.5m -
RS Stock No. 731-6002
BrandRS PRO
£15.03
Each
Units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac - 5V dc Australia/China, European Plug, UK, US/Japan 4A +40°C 2.5 x 5.5 x 9.5 mm Centre Positive Universal Plug 1 20W 98mm - 1.2m -
RS Stock No. 899-8592
BrandRS PRO
£8.79
Each
Units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Universal 5V dc Australia, European Plug, UK, US 2A +40°C USB Type A Universal Plug 1 10W 60.9mm - - -
RS Stock No. 731-6056
BrandRS PRO
£16.94
Each
Units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac - 12V dc Australia/China, European Plug, UK, US/Japan 2.5A +40°C 2.5 x 5.5 x 9.5 mm Centre Positive Universal Plug 1 30W 98mm - 1.2m -
RS Stock No. 123-6686
BrandRS PRO
£5.23
Each
Units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Power Supply 5V dc Type C 1A +40°C USB Type A EU Plug 1 5W 36mm - - -
RS Stock No. 903-2863
BrandRS PRO
£12.16
Each
Units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Power Supply 12V dc European, Interchangeable UK, US Plugtop 500mA +40°C 2.1 x 5.5 x 12 mm Centre Positive Universal Plug 1 6W 64mm - 1.5m -
RS Stock No. 124-2207
BrandRS PRO
£18.67
Each
Units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Switched Mode Power Supply 5V dc Type C 5A +45°C USB Type A EU Plug 4 25W 72.4mm - - -
RS Stock No. 821-5351
BrandRS PRO
£22.58
Each
Units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Power Adapter 12V dc Type C 3A +45°C 2.1 x 5.5 x 10 mm Centre Positive EU Plug 1 40W 71.6mm - 1.5m -
RS Stock No. 903-2882
BrandRS PRO
£16.72
Each
Units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Power Supply 12V dc European, Interchangeable UK, US Plugtop 1.5A +40°C 2.1 x 5.5 x 12 mm Centre Positive Universal Plug 1 18W 74mm - 1.5m -
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