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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. You can learn more in our guide to AC/DC adapters.

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 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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In Stock RS PRO 30 W Power Adapter AC/DC Adapter 3-Pin (IEC) 30V dc Output, 1 A RS Stock No. 175-2784 Subtotal (1 unit) £19.67(exc. VAT) £19.67/unit Quantity	-	-	AC/DC Adapter	Power Adapter	30V dc	3-Pin (IEC)	-	-	-	-	2.1 x 5.5 mm Connector	30W	6ft	-	-	-	1	-	1A	IEC C14	99mm	0°C	-	40°C	36mm	-	-	CCC, CE, cULus, FCC, TUV, UL	52mm	-	-	86.95%	-	240V ac	-
Temporarily out of stock RS PRO 36 W AC/DC Adapter AC/DC Adapter Type G 12V dc Output, 3 A RS Stock No. 175-3326 Subtotal (1 unit) £17.76(exc. VAT) £17.76/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	12V dc	Type G	-	-	-	-	2.1 x 5.5 x 12 mm Centre Positive	36W	-	-	-	-	1	-	3A	UK Plug	115mm	0°C	Regulated	40°C	42mm	-	-	EN 60950-1, CE	52mm	-	-	87%	-	240V ac	-
In Stock RS PRO 9 W AC/AC Adapter AC/AC Adapter Type G 9V ac Output, 950 mA RS Stock No. 139-1769 Subtotal (1 unit) £12.87(exc. VAT) £12.87/unit Quantity	-	-	AC/AC Adapter	AC/AC Adapter	9V ac	Type G	-	-	-	-	2.1 x 5.5 x 12 mm Centre Positive	9W	1.8m	-	-	-	1	-	950mA	UK Plug	79mm	-20°C	-	40°C	52mm	-	-	IEC/EN 61558	52mm	-	-	-	-	240V ac	-
Temporarily out of stock RS PRO 18 W AC/DC Adapter AC/DC Adapter Type G 12V dc Output, 1.5 A RS Stock No. 175-3310 Subtotal (1 unit) £10.42(exc. VAT) £10.42/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	12V dc	Type G	-	-	-	-	2.1 x 5.5 x 12 mm Centre Positive	18W	1.5m	-	-	-	1	-	1.5A	UK Plug	74.5mm	0°C	Regulated	40°C	77.7mm	-	-	CE, EN 60950-1	50.9mm	-	-	79.3%	-	240V ac	-
In Stock RS PRO 7.2 W AC/DC Adapter AC/DC Adapter 2-Pin (EU) 12V dc, 3 V dc Output, 600 mA RS Stock No. 206-4908 Subtotal (1 unit) £11.51(exc. VAT) £11.51/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	12, 3V dc	2-Pin (EU)	-	-	-	-	Interchangeable	7.2W	150mm	-	-	-	7	-	600mA	EU Plug	69mm	0°C	Regulated	40°C	39.5mm	-	-	CE, UL	68mm	-	-	72.1%	-	240V ac	-
In Stock RS PRO 12 W AC/DC Adapter AC/DC Adapter Fixed Bare end 12V dc Output, 1 A RS Stock No. 136-4896 Subtotal (1 unit) £12.27(exc. VAT) £12.27/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	12V dc	Fixed Bare end	-	-	-	-	2.1 x 5.5 x 12 mm Centre Positive	12W	-	-	-	-	1	-	1A	Fixed AC Mains Lead	95mm	-20°C	-	80°C	30.6mm	-	-	CE, EN 60950-1	43mm	-	-	82.95%	-	240V ac	-
In Stock RS PRO 12 W Interchangeable AC-DC Power Adapter AC/DC Adapter US, UK, EU, Australia 12V dc Output, 1 A RS Stock No. 251-9230 Subtotal (1 unit) £29.83(exc. VAT) £29.83/unit Quantity	-	-	AC/DC Adapter	Interchangeable AC-DC Power Adapter	12V dc	US, UK, EU, Australia	-	-	-	-	2.5 x 5.5	12W	1.5m	-	-	-	1	-	1A	Universal Plug	80.2mm	0°C	Regulated	40°C	-	-	-	IEC/EN 60601-1 (Medical)	46mm	-	-	83.26%	-	240V ac	-
In Stock RS PRO 12 W AC/DC Adapter AC/DC Adapter 2-Pin (EU) 12V dc Output, 2 A RS Stock No. 206-4916 Subtotal (1 unit) £11.29(exc. VAT) £11.29/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	12V dc	2-Pin (EU)	-	-	-	-	5.5 x 2.1 x 12mm DC Jack	12W	1.5m	-	-	-	1	-	2A	EU Plug	76.4mm	0°C	Regulated	40°C	33.7mm	-	-	UL, CE	23mm	-	-	84.02%	-	240V ac	-
In Stock RS PRO 24 W Power Adapter AC/DC Adapter C14 6V dc Output, 4 A RS Stock No. 904-8483 Subtotal (1 unit) £22.44(exc. VAT) £22.44/unit Quantity	-	-	AC/DC Adapter	Power Adapter	6V dc	C14	-	-	-	-	1.75 x 4.75 x 11 mm Centre Positive Female Coaxial Plug, 2.1 x 5.5 x 10.5 mm Centre Positive Female Coaxial Plug, 2.5 x 5.5 x 12.5 mm Centre Positive Female Coaxial Plug, 3 x 6.3 x 12 mm Centre Positive	24W	1.2m	-	-	-	1	-	4A	C14	100mm	0°C	-	40°C	31mm	-	-	ENIEC609501, CB, CE, FCC, GS, TUVSUD, ULcUL	45mm	-	-	-	-	240V ac	-
In Stock RS PRO 24 W Power Adapter AC/DC Adapter C14 5V dc Output, 4 A RS Stock No. 904-8474 Subtotal (1 unit) £21.21(exc. VAT) £21.21/unit Quantity	-	-	AC/DC Adapter	Power Adapter	5V dc	C14	-	-	-	-	1.75 x 4.75 x 11 mm Centre Positive Female Coaxial Plug, 2.1 x 5.5 x 10.5 mm Centre Positive Female Coaxial Plug, 2.5 x 5.5 x 12.5 mm Centre Positive Female Coaxial Plug, 3 x 6.3 x 12 mm Centre Positive	24W	1.2m	-	-	-	1	-	4A	C14	100mm	0°C	-	40°C	31mm	-	-	CB, ULcUL, CE, TUVSUD, GS, ENIEC609501, FCC	45mm	-	-	-	-	240V ac	-
In Stock RS PRO 24 W AC/DC Adapter AC/DC Adapter Type C 24V dc Output, 1 A RS Stock No. 175-3325 Subtotal (1 unit) £12.92(exc. VAT) £12.92/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	24V dc	Type C	-	-	-	-	2.1 x 5.5 x 12 mm Centre Positive	24W	-	-	-	-	1	-	1A	EU Plug	74.5mm	0°C	Regulated	40°C	88.7mm	-	-	EN 60950-1, CE	50.4mm	-	-	86.8%	-	240V ac	-
Temporarily out of stock RS PRO 18 W AC/DC Adapter AC/DC Adapter Type G 9V dc Output, 2 A RS Stock No. 175-3309 Subtotal (1 unit) £12.86(exc. VAT) £12.86/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	9V dc	Type G	-	-	-	-	2.1 x 5.5 x 12 mm Centre Positive	18W	1.5m	-	-	-	1	-	2A	UK Plug	74.5mm	0°C	Regulated	40°C	77.7mm	-	-	CE, EN 60950-1	50.9mm	-	-	85%	-	240V ac	-
In Stock RS PRO 5 W USB Adapter AC/DC Adapter Australia, EU, UK, US 5V dc Output, 1 A RS Stock No. 907-6255 Subtotal (1 unit) £9.81(exc. VAT) £9.81/unit Quantity	-	-	AC/DC Adapter	USB Adapter	5V dc	Australia, EU, UK, US	-	-	-	-	USB Type A	5W	60.9mm	-	-	-	1	-	1A	Universal Plug	60.9mm	0°C	-	40°C	38mm	-	-	CCC, CE, C-Tick, TUV GS, cULus	31.4mm	-	-	79%	-	240V ac	-
In Stock RS PRO 65 W Power Adapter AC/DC Adapter IEC 320 C14 15V dc Output, 4.33 A RS Stock No. 204-7564 Subtotal (1 unit) £28.27(exc. VAT) £28.27/unit Quantity	-	-	AC/DC Adapter	Power Adapter	15V dc	IEC 320 C14	-	-	-	-	2.1 x 5.5 x 11 mm Centre Positive	65W	-	-	-	-	1	-	4.33A	IEC 320-C14	120mm	0°C	-	40°C	36mm	-	-	CCC, CE, cULus, FCC, TUV, UL	52.5mm	-	-	88%	-	240V ac	-
Temporarily out of stock RS PRO 10 W Power Supply AC/DC Adapter UK 5V dc Output RS Stock No. 303-990 Subtotal (1 unit) £8.41(exc. VAT) £8.41/unit Quantity	-	-	AC/DC Adapter	Power Supply	5V dc	UK	-	-	-	-	USB Type A	10W	-	-	-	-	1	-	-	UK Plug	59mm	0°C	-	40°C	26mm	-	-	CE/UKCA Declarations	49mm	-	-	78.7%	-	264V ac	-
In Stock RS PRO 30 W AC/DC Adapter AC/DC Adapter Australia, EU, UK, US 12V dc Output, 2.5 A RS Stock No. 144-0955 Subtotal (1 unit) £19.65(exc. VAT) £19.65/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	12V dc	Australia, EU, UK, US	-	-	-	-	2.1 x 5.5 x 12 mm Centre Positive	30W	6ft	-	-	-	1	-	2.5A	Universal Plug	52mm	0°C	Regulated	40°C	36mm	-	-	CE, cULus, RCM (CTick), RoHS, TUV, UKCA	101mm	-	-	86.95%	-	240V ac	-
In Stock RS PRO 18 W Power Adapter AC/DC Adapter 3-Pin (IEC) 6V dc Output, 3 A RS Stock No. 144-0969 Subtotal (1 unit) £19.11(exc. VAT) £19.11/unit Quantity	-	-	AC/DC Adapter	Power Adapter	6V dc	3-Pin (IEC)	-	-	-	-	2.1 x 5.5 mm Connector	18W	1200mm	-	-	-	1	-	3A	IEC C14	99mm	0°C	-	40°C	36mm	-	-	UL, TUV, FCC, cULus, CE, CCC	52mm	-	-	85%	-	240V ac	-
In Stock RS PRO 12 W AC-DC Power Adapter AC/DC Adapter EU 12V dc Output, 1 A RS Stock No. 251-9221 Subtotal (1 unit) £12.50(exc. VAT) £12.50/unit Quantity	-	-	AC/DC Adapter	AC-DC Power Adapter	12V dc	EU	-	-	-	-	2.1 x 5.5 mm	12W	1.8m	-	-	-	1	-	1A	2-Pin	60.65mm	0°C	Regulated	40°C	58.1mm	-	-	TUV-GS, RoHS, REACH & EN 62368-1/IEC 62368-1 Standards, IEC/EN 62368-1, CE	29.14mm	-	-	82.96%	-	240V ac	-
In Stock RS PRO 30 W AC/DC Adapter AC/DC Adapter IEC 320 C14 24V Output, 1.25 A RS Stock No. 270-7415 Subtotal (1 unit) £20.19(exc. VAT) £20.19/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	24V	IEC 320 C14	-	-	-	-	2.1 x 5.5 mm	30W	1800mm	-	-	-	1	-	1.25A	C14	99mm	0°C	-	40°C	36mm	-	-	EN/UL 62368-1	52mm	-	-	85%	-	264V ac	-
In Stock RS PRO 15 W AC/DC Adapter Interchangeable 6V Output, 2.5 A RS Stock No. 270-7394 Subtotal (1 unit) £17.69(exc. VAT) £17.69/unit Quantity	-	-	AC/DC Adapter	-	6V	Interchangeable	-	-	-	-	2.1 x 5.5 mm Jack	15W	1500mm	-	-	-	1	-	2.5A	-	63.5mm	0°C	-	40°C	36mm	-	-	IEC/EN 62368-1	43.5mm	-	-	81.38%	-	264V ac	-