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. 903-2873
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 9V dc European, Interchangeable UK, US Plugtop 2A +40°C 2.1 x 5.5 x 12 mm Centre Positive Universal Plug 1 18W 74mm - 1.5m -
RS Stock No. 866-0067
BrandRS PRO
£9.80
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 2.1A +40°C USB Type A EU Plug 1 10.5W 71.6mm Regulated - No
RS Stock No. 124-2193
BrandRS PRO
£7.24
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 Type C 2.4A +40°C USB Type A EU Plug 1 12W 66.75mm - - -
RS Stock No. 124-2192
BrandRS PRO
£12.36
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 24V dc Australia, European Plug, UK, US 500mA +40°C 2.1 x 5.5 x 10 mm Centre Positive Universal Plug 1 12W 54.8mm - 1.5m -
RS Stock No. 124-2179
BrandRS PRO
£6.89
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 1.5A +40°C 2.1 x 5.5 x 10 mm Centre Positive EU Plug 1 7.5W 35.68mm - 1.5m -
RS Stock No. 903-2851
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 5V dc European Plug, UK, US 1.2A +40°C 2.1 x 5.5 x 12 mm Centre Positive Universal Plug 1 6W 64mm - 1.5m -
RS Stock No. 124-2199
BrandRS PRO
£13.11
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 2.5A +40°C Micro USB Type B Universal Plug 1 12.5W 54.8mm - 1.5m -
RS Stock No. 124-4703
BrandRS PRO
£12.70
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 6V dc Australia, European Plug, Japan, UK, US 2A +40°C 2.1 x 5.5 x 12 mm Centre Positive Universal Plug 1 12W 713.8mm - 1.5m -
RS Stock No. 124-2202
BrandRS PRO
£10.64
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 C 1.5A +40°C 2.1 x 5.5 x 10 mm Centre Positive EU Plug 1 18W 69.3mm - 1.5m -
RS Stock No. 124-2191
BrandRS PRO
£7.76
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 24V dc Type C 500mA +40°C 2.1 x 5.5 x 10 mm Centre Positive EU Plug 1 12W 35.68mm - 1.5m -
RS Stock No. 124-2181
BrandRS PRO
£6.89
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 Type C 630mA +40°C 2.1 x 5.5 x 10 mm Centre Positive EU Plug 1 7.5W 35.68mm - 1.5m -
RS Stock No. 903-2885
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 15V dc European, Interchangeable UK, US Plugtop 1.2A +40°C 2.1 x 5.5 x 12 mm Centre Positive Universal Plug 1 18W 74mm - 1.5m -
RS Stock No. 124-4705
BrandRS PRO
£12.21
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 Australia, European Plug, Japan, UK, US 1A +40°C 2.1 x 5.5 x 12 mm Centre Positive Universal Plug 1 12W 713.8mm - 1.5m -
RS Stock No. 124-2188
BrandRS PRO
£7.76
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 2.4A +40°C 2.1 x 5.5 x 10 mm Centre Positive EU Plug 1 12W 35.68mm - 1.5m -
RS Stock No. 124-4706
BrandRS PRO
£12.21
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 15V dc Australia, European Plug, Japan, UK, US 1A +40°C 2.1 x 5.5 x 12 mm Centre Positive Universal Plug 1 15W 713.8mm - 1.5m -
RS Stock No. 124-2185
BrandRS PRO
£9.80
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 1.5A +40°C USB Type A Universal Plug 1 7.5W 54.8mm - - -
RS Stock No. 126-2120
BrandRS PRO
£23.53
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 Global 2A +45°C 2.1 x 5.5 x 11 mm Centre Positive Universal Plug 1 24W 30mm - 1.5m Yes
RS Stock No. 124-2200
BrandRS PRO
£10.64
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 3A +40°C 2.1 x 5.5 x 10 mm Centre Positive EU Plug 1 18W 69.3mm - 1.5m -
RS Stock No. 124-2196
BrandRS PRO
£9.38
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 9V dc Type C 1.67A +40°C 2.1 x 5.5 x 10 mm Centre Positive EU Plug 1 15W 35.68mm - 1.5m -
RS Stock No. 903-2895
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 9V dc Australia, European Plug, UK, US 2.66A +40°C 2.1 x 5.5 x 12 mm Centre Positive Universal Plug 1 24W 79.1mm - 1.8m -
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