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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 60 W AC-DC Converter Power Supplies AC/DC Adapter 2-Pin (IEC) 12V dc Output, 5 A RS Stock No. 200-8934 Subtotal (1 unit) £25.74(exc. VAT) £25.74/unit Quantity	-	-	AC/DC Adapter	AC-DC Converter Power Supplies	12V dc	2-Pin (IEC)	-	-	-	-	-	60W	-	-	-	-	1	-	5A	C8	143mm	0°C	-	45°C	-	-	-	UL, TUV, FCC, cULus, CE, CCC	70mm	-	-	88%	-	240V ac	-
In Stock RS PRO 20 W AC/AC Adapter AC/AC Adapter Type G 24V ac Output, 800 mA RS Stock No. 139-1777 Subtotal (1 unit) £15.25(exc. VAT) £15.25/unit Quantity	-	-	AC/AC Adapter	AC/AC Adapter	24V ac	Type G	-	-	-	-	2.1 x 5.5 x 12 mm Centre Positive	20W	1.8m	-	-	-	1	-	800mA	UK Plug	87.2mm	-20°C	-	40°C	57mm	-	-	IEC/EN 61558	56.5mm	-	-	-	-	240V ac	-
In Stock RS PRO 18 W AC/DC Adapter UK, EU 9V Output, 2 A RS Stock No. 270-7395 Subtotal (1 unit) £35.01(exc. VAT) £35.01/unit Quantity	-	-	AC/DC Adapter	-	9V	UK, EU	-	-	-	-	DC Jack	18W	1.8m	-	-	-	1	-	2A	EU Plug	67.5mm	0°C	-	40°C	65.5mm	-	-	IEC/EN 62368-1	45.5mm	-	-	85%	-	264V ac	-
In Stock RS PRO 30 W Power Supply AC/DC Adapter UK 12V dc Output RS Stock No. 304-003 Subtotal (1 unit) £14.98(exc. VAT) £14.98/unit Quantity	-	-	AC/DC Adapter	Power Supply	12V dc	UK	-	-	-	-	2.5 mm Centre Positive	30W	1.5m	-	-	-	1	-	-	Global Interchangeable Heads	72mm	0°C	-	40°C	38mm	-	-	UKCA, UK, RCM, CE	43.2mm	-	-	86%	-	264V ac	-
Being discontinued RS PRO 120 W Power Adapter AC/DC Adapter 3-Pin (IEC) 12V dc Output, 10 A RS Stock No. 144-0990 Subtotal (1 unit) £82.38(exc. VAT) £82.38/unit Quantity	-	-	AC/DC Adapter	Power Adapter	12V dc	3-Pin (IEC)	-	-	-	-	4-Pin Power DIN	120W	1.2m	-	-	-	1	-	10A	IEC C14	173mm	0°C	-	40°C	71mm	-	-	UL, TUV, FCC, cULus, CE, CCC	71mm	-	-	88%	-	264V ac	-
In Stock RS PRO 24 W AC-DC Converter Power Supplies AC/DC Adapter 12V dc Output, 2 A RS Stock No. 175-3275 Subtotal (1 unit) £17.94(exc. VAT) £17.94/unit Quantity	-	-	AC/DC Adapter	AC-DC Converter Power Supplies	12V dc	-	-	-	-	-	2.1 x 5.5 x 12 mm Centre Positive - Right Angle	24W	80.6mm	-	-	-	1	-	2A	IEC 320-C8	80.6mm	0°C	Regulated	40°C	31mm	-	-	EN 60950-1, CE	50mm	-	-	86.2%	-	240V ac	-
In Stock RS PRO 36 W AC-DC Converter Power Supplies AC/DC Adapter 30V dc Output, 1.2 A RS Stock No. 139-2352 Subtotal (1 unit) £23.00(exc. VAT) £23.00/unit Quantity	-	-	AC/DC Adapter	AC-DC Converter Power Supplies	30V dc	-	-	-	-	-	2.1 x 5.5 x 12 mm, Centre	36W	1.5m	-	-	-	1	-	1.2A	IEC 320-C8	86mm	-20°C	Regulated	40°C	31mm	-	-	IEC/EN 61558	47mm	-	-	87.4%	-	240V ac	-
In Stock RS PRO 40 W Interchangeable AC-DC Power Adapter AC/DC Adapter Australia, EU, UK, US 24V dc Output, 1.66 A RS Stock No. 251-9228 Subtotal (1 unit) £25.47(exc. VAT) £25.47/unit Quantity	-	-	AC/DC Adapter	Interchangeable AC-DC Power Adapter	24V dc	Australia, EU, UK, US	-	-	-	-	2.5 x 5.5	40W	1.5m	-	-	-	1	-	1.66A	2-Pin	84.5mm	0°C	Regulated	40°C	35mm	-	-	IEC/EN/UL 62368-1	52mm	-	-	87.58%	-	240V ac	-
In Stock RS PRO 120 W Power Adapter AC/DC Adapter C14 24V dc Output, 5 A RS Stock No. 175-3290 Subtotal (1 unit) £86.06(exc. VAT) £86.06/unit Quantity	-	-	AC/DC Adapter	Power Adapter	24V dc	C14	-	-	-	-	2.5 x 5.5 mm Centre Positive	120W	-	-	-	-	1	-	5A	IEC 320-C14	168mm	0°C	-	40°C	39mm	-	-	EN 60950-1, CE	66mm	-	-	88%	-	240V ac	-
In Stock RS PRO 65 W AC/DC Adapter C14 19V dc Output, 3.43 A RS Stock No. 229-7865 Subtotal (1 unit) £34.95(exc. VAT) £34.95/unit Quantity	-	-	AC/DC Adapter	-	19V dc	C14	-	-	-	-	-	65W	1.5m	-	-	-	1	-	3.43A	-	119mm	0°C	-	40°C	60mm	-	-	CCC, CE, cULus, TUV, FCC, UL	60mm	-	-	89%	-	240V	-
Last RS stock RS PRO 15 W AC/DC Adapter AC/DC Adapter Australia, EU, UK, US 5.1V dc Output, 3 A RS Stock No. 187-1369 Subtotal (1 unit) £13.19(exc. VAT) £13.19/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	5.1V dc	Australia, EU, UK, US	-	-	-	-	USB Type C	15W	1.5m	-	-	-	1	-	3A	Universal Plug	74.5mm	0°C	Regulated	40°C	54mm	-	-	EN 60950-1, CE	36mm	-	-	81.97%	-	240V ac	-
In Stock RS PRO 30 W Switched Mode Power Supply AC/DC Adapter Interchangeable 12V dc Output RS Stock No. 303-995 Subtotal (1 unit) £11.62(exc. VAT) £11.62/unit Quantity	-	-	AC/DC Adapter	Switched Mode Power Supply	12V dc	Interchangeable	-	-	-	-	2.5 mm Centre Positive	30W	1.5m	-	-	-	1	-	-	Multiple	72mm	0°C	-	40°C	38mm	-	-	CE, RCM, UK, UKCA	42mm	-	-	86%	-	264V ac	-
In Stock RS PRO 7.5 W AC/DC Adapter Australia, EU, UK, US 9V dc Output, 840 mA RS Stock No. 124-2180 Subtotal (1 unit) £10.21(exc. VAT) £10.21/unit Quantity	-	-	AC/DC Adapter	-	9V dc	Australia, EU, UK, US	-	-	-	-	2.1 x 5.5 x 10 mm Centre Positive	7.5W	1.5m	-	-	-	1	-	840mA	Universal Plug	35.68mm	-10°C	-	40°C	34.43mm	-	-	EN 61000-3-2, CE, EN 55013, EN 55014-1, EN 55014-2, EN 55020, EN 55022, EN 55024, EN 61000-3-3, EU CoC V5, TUV/GS EN 60950-1, UL 60065	34.43mm	-	-	-	-	-	-
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 6 W Plug In Power Supply UK 24V dc, 5 V dc Output, 0.25 A RS Stock No. 625-749 Subtotal (1 unit) £9.45(exc. VAT) £9.45/unit Quantity	-	-	Plug In Power Supply	-	24, 5V dc	UK	-	-	-	-	Jack Connector 12+0.5mm	6W	1.5m	-	-	-	1	-	0.25A	UK Plug	62mm	-20°C	-	70°C	38mm	-	-	BS EN IEC 62368-1, CE, EMC Class B, REACH, RoHS, TUV-GS, UKCA	48mm	-	-	80%	-	264V ac	-
In Stock RS PRO 36 W Power Supply AC/DC Adapter C14 12V dc Output RS Stock No. 304-022 Subtotal (1 unit) £23.06(exc. VAT) £23.06/unit Quantity	-	-	AC/DC Adapter	Power Supply	12V dc	C14	-	-	-	-	2.5 x 5.5 mm Centre Positive	36W	1.5m	-	-	-	1	-	-	C14	119mm	0°C	-	40°C	39mm	-	-	CCC, UL, CE, UKCA, SAA, PSE, KCC	49mm	-	-	88%	-	264V ac	-
In Stock RS PRO 36 W AC/DC Adapter C14 18V dc Output, 2 A RS Stock No. 229-7857 Subtotal (1 unit) £31.62(exc. VAT) £31.62/unit Quantity	-	-	AC/DC Adapter	-	18V dc	C14	-	-	-	-	-	36W	1.5m	-	-	-	1	-	2A	-	100mm	0°C	-	40°C	50mm	-	-	CCC, UL, TUV, FCC, cULus, CE	50mm	-	-	89%	-	240V	-
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	-
In Stock RS PRO 12 W External AC/DC UK Plugtop Adapter Power Supply Plug In Power Supply UK 12V dc Output, 0.5 A RS Stock No. 625-741 Subtotal (1 unit) £10.62(exc. VAT) £10.62/unit Quantity	-	-	Plug In Power Supply	External AC/DC UK Plugtop Adapter Power Supply	12V dc	UK	-	-	-	-	Jack Connector 12+0.5mm	12W	1.5m	-	-	-	1	-	0.5A	UK Plug	48.5mm	-20°C	-	70°C	35.4mm	-	-	BS EN IEC 62368-1, CE, EMC Class B, REACH, RoHS, TUV-GS, UKCA	48mm	-	-	83%	-	264V ac	-
In Stock RS PRO 24 W AC-DC Converter Power Supplies AC/DC Adapter 24V dc Output, 1 A RS Stock No. 139-2346 Subtotal (1 unit) £18.82(exc. VAT) £18.82/unit Quantity	-	-	AC/DC Adapter	AC-DC Converter Power Supplies	24V dc	-	-	-	-	-	Centre, 2.1 x 5.5 x 12 mm	24W	1.5m	-	-	-	1	-	1A	IEC 320-C8	97mm	-20°C	-	40°C	31mm	-	-	IEC/EN 61558	45mm	-	-	88.01%	-	240V ac	-