AC/DC Adapters

A 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's 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.

Types of plug in power supplies
Plug in power supplies are available as switched mode, linear and universal types and including single fixed voltage, selectable voltage, AC/AC or AC/DC mains power and other variable outputs.

AC/DC Adapters (also known as AC Adaptors or AC/DC converters)
An AC 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.

AC stands for alternating current and comes from the wall (input), anything that plugs straight in is AC, if it requires an adapter it will convert either AC to a lower AC voltage or AC to DC.

DC stands for direct current and flows in one direction, AC flows back and forth, polarity shows which direction it moves.

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 a the global marketplace.

Are all AC/DC Adapters the same?
It is possible to use a power adapter on different devices, but it’s important to check whether it’s 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 Output Voltage Output Current Plug Type Regulated/Unregulated Input Connector Output Connector Power Rating Type Number of Outputs Length Cable Length Ripple And Noise Medical Approved
RS Stock No. 909-8126
Mfr. Part No.T5875DV
£6.50
Each
Units
90 → 264V ac 5.1 V 2.5A - - Socket Micro USB 13W - 1 73.2mm 1.5m <120mV -
RS Stock No. 103-4301
Mfr. Part No.T5875DV
£5.99
Each (In a Box of 60)
Units
90 → 264V ac 5.1 V 2.5A - - Socket Micro USB 13W - 1 73.2mm 1.5m <120mV -
RS Stock No. 103-4302
Mfr. Part No.T5989DV
£5.99
Each (In a Box of 60)
Units
90 → 264V ac 5.1 V 2.5A - - Socket Micro USB 13W - 1 73.2mm 1.5m <120mV -
RS Stock No. 909-8135
Mfr. Part No.T5989DV
£6.50
Each
Units
90 → 264V ac 5.1 V 2.5A - - Socket Micro USB 13W - 1 73.2mm 1.5m <120mV -
RS Stock No. 615-8919
BrandRS Pro
£9.99
Each
Units
230V ac 1.5 V dc, 3 V dc, 4.5 V dc, 6 V dc, 7.5 V dc, 9 V dc, 12 V dc - Type G - British 3-Pin - - 0.75 x 2.35 x 10 mm Hollow Plug, 1.35 x 3.5 x 10 mm Hollow Plug, 1.7 x 4 x 10 mm Hollow Plug, 1.75 x 4.75 x 10 mm Hollow Plug, 2.1 x 5 x 12 mm Hollow Plug, 2.5 x 12 mm Jack Plug, 2.5 x 5.5 x 12 mm Hollow Plug, 3.5 x 15 mm Jack Plug 14W - 1 92mm 1.8m 1.6V -
RS Stock No. 822-6373
£5.99
Each
Units
90 → 264V ac 5 V dc 2A Australia, European Plug, UK - Aus Changeable Heads, Euro Plugtop, UK Plugtop Micro USB 10W - 1 36mm 1.5m 300mV Pk-Pk -
RS Stock No. 615-8880
BrandRS Pro
£7.48
Each
Units
230V ac 3 V dc, 4.5 V dc, 6 V dc, 7.5 V dc, 9 V dc, 12 V dc 500mA Type G - British 3-Pin - - 0.75 x 2.35 x 10 mm Hollow Plug, 1.35 x 3.5 x 10 mm Hollow Plug, 1.7 x 4 x 10 mm Hollow Plug, 1.75 x 4.75 x 10 mm Hollow Plug, 2.1 x 5 x 12 mm Hollow Plug, 2.5 x 12 mm Jack Plug, 2.5 x 5.5 x 12 mm Hollow Plug, 3.5 x 15 mm Jack Plug 12W - 1 92mm 1.8m 1.5V -
RS Stock No. 148-963
BrandRS Pro
£11.68
Each
Units
100 → 240V ac 3 V dc, 4.5 V dc, 6 V dc, 7.5 V dc, 9 V dc, 12 V dc 1 A, 1.2 A, 1.5 A, 1.6 A, 700 mA, 800 mA, 900 mA Type G - British 3-Pin - - 2.35 x 10 mm Female Coaxial Plug, 2.5 x 12 mm Male Jack Plug, 3.5 x 10 mm Female Coaxial Plug, 3.5 x 15 mm Male Jack Plug, 4 x 10 mm Female Coaxial Plug, 4.75 x 10 mm Female Coaxial Plug, 5 x 12 mm Female Coaxial Plug, 5.5 x 12 mm Female Coaxial Plug 9.6W Switched Mode Power Supply 1 82mm 1.8m 300mV -
RS Stock No. 121-5944
Mfr. Part No.T6142DV
£4.99
Each
Units
90 → 264V 5.1 V 2.5A US - Socket Micro USB 12.75W - 1 - 1.5m 120mV -
RS Stock No. 702-3255
Mfr. Part No.5311103
BrandAnsmann
£10.65
Each
Units
100 → 240V ac 3 V dc, 4.5 V dc, 5 V dc, 6 V dc, 7.5 V dc, 9 V dc, 12 V dc 300mA, 400mA, 450mA, 600mA Australia, European Plug, Japan, UK, US - - 0.75 x 2.35 x 10 mm Female Coaxial Plug, 1.35 x 3.5 x 10 mm Female Coaxial Plug, 1.7 x 4 x 10 mm Female Coaxial Plug, 2.1 x 5 x 12 mm Female Coaxial Plug, 2.5 x 12 mm Male Jack Plug, 2.5 x 5.5 x 12 mm Female Coaxial Plug, 3.5 x 15 mm Male Jack Plug - Switched Mode Power Supply 1 69mm 1.8m 300mV -
RS Stock No. 765-3327
Mfr. Part No.PSA60R-240(RS)
BrandPhihong
£38.38
Each
Units
90 → 264V ac 24 V dc 2.5A Australia/China, European Plug, UK, US/Japan - - Barrel - Power Adapter 1 103mm 1.5m 240mV Pk-Pk -
RS Stock No. 679-6707
Mfr. Part No.8594004
BrandAnsmann
£17.48
Each
Units
100 → 240V ac 3 V dc, 4.5 V dc, 5 V dc, 6 V dc, 7.5 V dc, 9 V dc, 12 V dc - Type G - British 3-Pin - - 1.35 x 3.5 x 10 mm Hollow Plug, 1.7 x 4 x 10 mm Hollow Plug, 2.1 x 5 x 12 mm Hollow Plug, 2.35 x 0.75 x 10 mm Hollow Plug, 2.5 x 5.5 x 12 mm Hollow Plug, 3.5 x 15 mm Jack Plug 16.8W Switched Mode Power Supply 1 82mm 1.8m 300mV -
RS Stock No. 123-5272
Mfr. Part No.T6143DV
£4.95
Each (In a Box of 60)
Units
90 → 264V ac 5.1 V 2.5A Type G - British 3-Pin, 2-Pin Type C - EuroPlug - Socket Micro USB 13W - 1 73.2mm 1.5m <120mV -
RS Stock No. 765-3323
Mfr. Part No.PSA60R-120
BrandPhihong
£38.38
Each
Units
90 → 264V ac 12 V dc 5A Australia/China, European Plug, UK, US/Japan - - Barrel - Power Adapter 1 103mm 1.25m 150mV Pk-Pk -
RS Stock No. 478-4689
Mfr. Part No.MW1P100FK
BrandOEP
£16.72
Each
Units
120V ac 230 V ac - Type G - British 3-Pin - - - - - - 130mm - - -
RS Stock No. 469-3959
Mfr. Part No.MW2P045UK
BrandOEP
£9.33
Each
Units
240V ac 120 V ac - Type G - British 3-Pin - Socket - - - 1 62mm - - -
RS Stock No. 737-8158
BrandRS Pro
£12.41
Each
Units
230V ac 1.5 V dc, 3 V dc, 4.5 V dc, 6 V dc, 7.5 V dc, 9 V dc, 12 V dc 1 A, 500 mA, 600 mA, 700 mA, 800 mA Type G - British 3-Pin, 2-Pin Type C - EuroPlug - - 0.75 x 2.35 x 10 mm Female Coaxial Plug, 1.35 x 3.5 x 10 mm Female Coaxial Plug, 1.7 x 4 x 10 mm Female Coaxial Plug, 1.75 x 4.75 x 10 mm Female Coaxial Plug, 2.1 x 5 x 12 mm Female Coaxial Plug, 2.5 x 12 mm Male Jack Plug, 2.5 x 5.5 x 12 mm Female Coaxial Plug, 3.5 x 15 mm Male Jack Plug - Linear Power Supply 1 84mm 1.8m 1V -
RS Stock No. 400-6541
Mfr. Part No.9780000045
BrandMascot
£15.82
Each
Units
230V ac 12 V ac 1.5A Type G - British 3-Pin - - 1 x 2.1 mm with Snap-Lock, 1 x 2.5 mm with Snap-Lock - Linear Power Supply 1 83mm 2m - -
RS Stock No. 731-6068
BrandRS Pro
£21.18
Each
Units
90 → 264V ac 12 V dc 3A Australia/China, European Plug, UK, US/Japan - - 2.5 x 5.5 x 9.5 mm Centre Positive 36W - 1 98mm 1.2m ±1.3% -
RS Stock No. 472-8572
Mfr. Part No.MPP15 12V MED
BrandFriwo
£43.25
Each
Units
100 → 240V ac 12 V dc 1.25A Australia, European Plug, Japan, UK, US - - 1.3 x 3.5 x 9.5 mm Female Coaxial Plug, 1.7 x 4 x 11 mm Female Coaxial Plug, 2.1 x 5.5 x 11.5 mm Female Coaxial Plug, 2.1 x 5.5 x 9.5 mm Female Coaxial Plug, 2.5 x 13 mm Jack Plug, 2.5 x 5.5 x 9.5 mm Female Coaxial Plug, 3.5 x 14 mm Jack Plug 15W Switched Mode Power Supply 1 87.5mm 2m 120mV Pk-Pk Yes
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