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.


...
Read more Read less

Filters

Viewing 121 - 140 of 931 products
Results per page
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. 139-2270
BrandRS PRO
£9.11
Each
Units
230 V ac, 240 V ac Linear Power Supply 18V dc Type G 600mA +40°C 2.1 x 5.5 x 12 mm Centre Positive UK Plug 1 11W 87mm Unregulated 1.8m No
RS Stock No. 175-2802
BrandRS PRO
£10.38
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 5V dc Interchangeable 1.2A +40°C 2.1 x 5.5 x 12 mm Centre Positive Universal Plug 1 6W 65mm Regulated 1.8m -
RS Stock No. 175-3310
BrandRS PRO
£7.40
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 G 1.5A +40°C 2.1 x 5.5 x 12 mm Centre Positive UK Plug 1 18W 74.5mm Regulated 1500mm -
RS Stock No. 175-2815
BrandRS PRO
£12.60
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 2.5A +45°C 2.1 x 5.5 x 12 mm Centre Positive UK Plug 1 30W 76.8mm Regulated 1.5m -
RS Stock No. 139-1765
BrandRS PRO
£6.36
Each
Units
230 V ac, 240 V ac Linear Power Supply 12V ac Type G 400mA +40°C 2.1 x 5.5 x 12 mm Centre Positive UK Plug 1 5W 78mm - 1.8m No
RS Stock No. 175-3320
BrandRS PRO
£7.42
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 G 1.67A +40°C 2.1 x 5.5 x 12 mm Centre Positive UK Plug 1 15W 85mm Regulated - -
RS Stock No. 139-1770
BrandRS PRO
£6.38
Each
Units
230 V ac, 240 V ac Linear Power Supply 12V ac Type C 700mA +40°C 2.1 x 5.5 x 12 mm Centre Positive EU Plug 1 9W 62mm - 1.8m No
RS Stock No. 179-9522
BrandRS PRO
£13.20
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 AC-DC Power Adapter 3 V dc, 4.5 V dc, 5 V dc, 6 V dc, 7.5 V dc, 9 V dc, 12 V dc Type C 2.25A +40°C Interchangeable EU Plug 1 27W 92.2mm Regulated 1.5m No
RS Stock No. 175-2822
BrandRS PRO
£11.84
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 - 1.25A +45°C 2.1 x 5.5 x 12 mm Centre Positive EU Plug 1 30W 76.8mm Regulated 1.5m No
RS Stock No. 175-3293
BrandRS PRO
£6.74
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 9V dc Type G 660mA +40°C 2.1 x 5.5 x 12 mm Centre Positive UK Plug 1 6W 61.6mm Regulated 1500mm -
RS Stock No. 175-2812
BrandRS PRO
£9.00
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 3.5A +40°C 2.1 x 5.5 x 12 mm Centre Positive EU Plug 1 17.5W 76.8mm Regulated 1.2m -
RS Stock No. 175-3317
BrandRS PRO
£7.60
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 15V dc Type C 1A +40°C 2.1 x 5.5 x 12 mm Centre Positive EU Plug 1 15W 74.5mm Regulated - -
RS Stock No. 144-0958
BrandRS PRO
£19.58
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 Switched Mode Power Supply 9V dc Australia, European Plug, UK, US 4A +40°C 2.1 x 5.5 x 12 mm Centre Positive Universal Plug 1 36W 52mm Regulated 1.2m -
RS Stock No. 144-0961
BrandRS PRO
£19.58
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 Switched Mode Power Supply 18V dc Australia, European Plug, UK, US 2.8A +40°C 2.1 x 5.5 x 12 mm Centre Positive Universal Plug 1 50.4W 52mm Regulated 1.2m -
RS Stock No. 175-3324
BrandRS PRO
£7.67
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 12V dc Type C 2A +40°C 2.1 x 5.5 x 12 mm Centre Positive EU Plug 1 24W 74.5mm Regulated - -
RS Stock No. 175-3330
BrandRS PRO
£16.58
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 Switched Mode Power Supply 24V dc Type G 2.5A +40°C 2.1 x 5.5 x 12 mm Centre Positive UK Plug 1 60W 117mm Regulated - -
RS Stock No. 139-1774
BrandRS PRO
£8.93
Each
Units
230 V ac, 240 V ac Linear Power Supply 12V ac Type C 1.6A +40°C 2.1 x 5.5 x 12 mm Centre Positive EU Plug 1 20W 89mm - 1.8m No
RS Stock No. 175-3306
BrandRS PRO
£6.33
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 +50°C 2.1 x 5.5 x 12 mm Centre Positive EU Plug 1 12W 78.98mm Regulated - -
RS Stock No. 179-9518
BrandRS PRO
£12.53
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 AC-DC Power Adapter 24V dc Type C 1A +40°C 2.1 x 5.5 x 10 mm Centre Positive EU Plug 1 24W 69.3mm Regulated 1.5m No
RS Stock No. 139-1781
BrandRS PRO
£7.16
Each
Units
230 V ac, 240 V ac Linear Power Supply 5V dc Type G 900mA +40°C 2.1 x 5.5 x 12 mm Centre Positive UK Plug 1 4.5W 79mm Unregulated 1.8m No
Related Products
From RS Pro a plug-in AC-DC power adapter ...
Description:
From RS Pro a plug-in AC-DC power adapter with a low profile compact design for converting AC mains current into DC voltage for a wide range of DC applications. This AC adapter has a 2-pin Europlug style enclosure and is terminated with a DC cable with a 2.1 x 5.5 ...
RS Pro 12 W Medical approved wall mount ...
Description:
RS Pro 12 W Medical approved wall mount power adapter12V 700mA Universal input, customized design Applications for: medical equipment, health devices. High-reliability LED indication Light and convenient plug-in High-efficiency: consumption, meet US Energy Start/CEC/AS/MEPS/EUP/ERPSuit medical equipment, health device.
Very low-ripple and noise Very good regulation, low-disturbance ...
Description:
Very low-ripple and noise Very good regulation, low-disturbance noise, but heavier, bigger size, than switching power supply Used for antenna, fan, radio, video, toy, aquarium, desk lamp, LED lamp Leakage current: 0.25mA at 264V AC (maximum)Burn-in: 100% full load, 40°C, 4 hours (minimum)MTBF: meet MIL-HDBK-217F over 50,000hrs, full load, 25°CWithstanding ...
The RS Pro Range of Class II 6watt ...
Description:
The RS Pro Range of Class II 6watt AC/DC United Kingdom power supplies provide 6 watts of continuous power in a compact fixed wall plug enclosure suitable for use in many general power applications.