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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 12 W AC/DC Adapter AC/DC Adapter Type G 12V dc Output, 1 A RS Stock No. 175-3303 Subtotal (1 unit) £8.85(exc. VAT) £8.85/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	12V dc	Type G	-	-	-	-	2.1 x 5.5 x 12 mm Centre Positive	12W	1.5m	-	-	-	1	-	1A	UK Plug	70mm	0°C	Regulated	40°C	73.2mm	-	-	EN 60950-1, CE	49.5mm	-	-	79.3%	-	240V ac	-
In Stock RS PRO 50.4 W AC/DC Adapter AC/DC Adapter 3-Pin (UK) 24V dc Output, 2.1 A RS Stock No. 201-2631 Subtotal (1 unit) £21.91(exc. VAT) £21.91/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	24V dc	3-Pin (UK)	-	-	-	-	-	50.4W	-	-	-	-	1	-	2.1A	3-Pin Plug	-	0°C	Regulated	45°C	-	-	-	FCC, CCC, TUV, UL, cULus, CE	-	-	-	88%	-	240V ac	-
In Stock RS PRO 36 W AC/DC Adapter C14 12V dc Output, 3 A RS Stock No. 229-7855 Subtotal (1 unit) £28.89(exc. VAT) £28.89/unit Quantity	-	-	AC/DC Adapter	-	12V dc	C14	-	-	-	-	-	36W	1.5m	-	-	-	1	-	3A	-	100mm	0°C	-	40°C	50mm	-	-	CCC, CE, cULus, FCC, TUV, UL	50mm	-	-	88%	-	240V	-
In Stock RS PRO 30 W Power Adapter AC/DC Adapter 3-Pin (IEC) 12V dc Output, 2.5 A RS Stock No. 144-0971 Subtotal (1 unit) £19.11(exc. VAT) £19.11/unit Quantity	-	-	AC/DC Adapter	Power Adapter	12V dc	3-Pin (IEC)	-	-	-	-	2.1 x 5.5 mm Connector	30W	1800mm	-	-	-	1	-	2.5A	IEC C14	99mm	0°C	-	40°C	36mm	-	-	cULus, CCC, UL, TUV, FCC, CE	52mm	-	-	87%	-	240V ac	-
In Stock RS PRO 24 W Interchangeable AC-DC Power Adapter AC/DC Adapter Australia, EU, UK, US 24V dc Output, 1 A RS Stock No. 251-9224 Subtotal (1 unit) £22.26(exc. VAT) £22.26/unit Quantity	-	-	AC/DC Adapter	Interchangeable AC-DC Power Adapter	24V dc	Australia, EU, UK, US	-	-	-	-	2.5 x 5.5	24W	1.5m	-	-	-	1	-	1A	Universal Plug	76.8mm	0°C	Regulated	40°C	35mm	-	-	IEC/EN/UL 62368-1	47.5mm	-	-	82.2%	-	240V ac	-
In Stock RS PRO 72 W Power Adapter AC/DC Adapter IEC 320 C14 24V dc Output, 3 A RS Stock No. 204-7566 Subtotal (1 unit) £28.27(exc. VAT) £28.27/unit Quantity	-	-	AC/DC Adapter	Power Adapter	24V dc	IEC 320 C14	-	-	-	-	2.1 x 5.5 x 11 mm Centre Positive	72W	-	-	-	-	1	-	3A	IEC 320-C14	120mm	0°C	-	40°C	36mm	-	-	CCC, CE, cULus, FCC, TUV, UL	52.5mm	-	-	88%	-	240V ac	-
In Stock RS PRO 18 W AC/DC Adapter Interchangeable 9V Output, 2 A RS Stock No. 270-7396 Subtotal (1 unit) £17.46(exc. VAT) £17.46/unit Quantity	-	-	AC/DC Adapter	-	9V	Interchangeable	-	-	-	-	2.1 x 5.5 mm Jack	18W	1500mm	-	-	-	1	-	2A	-	63.5mm	0°C	-	40°C	36mm	-	-	IEC/EN 62368-1	43.5mm	-	-	85%	-	240V ac	-
In Stock RS PRO 30 W AC-DC Converter Power Supplies AC/DC Adapter UK 12V dc Output, 2.5 A RS Stock No. 200-8939 Subtotal (1 unit) £16.23(exc. VAT) £16.23/unit Quantity	-	-	AC/DC Adapter	AC-DC Converter Power Supplies	12V dc	UK	-	-	-	-	-	30W	-	-	-	-	1	-	2.5A	-	94mm	0°C	Regulated	45°C	-	-	-	CCC, CE, cULus, FCC, TUV, UL	6mm	-	-	85%	-	240V ac	-
In Stock RS PRO 7.2 W Switched Mode Power Supply AC/DC Adapter C14 12V dc, 3 V dc, 4.5 V dc, 5 V dc, 6 V dc, 7.5 V dc, 9 V dc RS Stock No. 304-017 Subtotal (1 unit) £20.71(exc. VAT) £20.71/unit Quantity	-	-	AC/DC Adapter	Switched Mode Power Supply	12, 3, 4.5, 5, 6, 7.5, 9V dc	C14	-	-	-	-	Interchangeable	7.2W	1.8m	-	-	-	1	-	-	Global Interchangeable Heads	70mm	0°C	-	25°C	37mm	-	-	CE, RCM, UKCA, UL	42mm	-	-	80%	-	264V ac	-
Currently unavailable RS PRO 72 VA AC-DC Converter Power Supplies AC/AC Adapter AUS, 2-Pin (EU), UK, US, EU 24V ac Output, 3 A RS Stock No. 907-6251 Subtotal (1 unit) £55.86(exc. VAT) £55.86/unit Quantity	-	-	AC/AC Adapter	AC-DC Converter Power Supplies	24V ac	AUS, 2-Pin (EU), UK, US, EU	-	-	-	-	2.1mm Jack Plug	72VA	1800mm	-	-	-	2	-	3A	-	97mm	-	-	-	72mm	-	-	CE	68.5mm	-	-	79%	-	240V ac	-
In Stock RS PRO 60 W Switched Mode Power Supply AC/DC Adapter C14 12V dc Output, 5 A RS Stock No. 188-769 Subtotal (1 unit) £36.14(exc. VAT) £36.14/unit Quantity	-	-	AC/DC Adapter	Switched Mode Power Supply	12V dc	C14	-	-	-	-	2.1 x 5.5 x 11 mm Centre Positive	60W	1000mm	-	-	-	1	-	5A	IEC 320-C14	116.3mm	0°C	-	40°C	31.7mm	-	-	CE	51mm	-	-	87%	-	240V ac	-
In Stock RS PRO 18 W AC-DC Converter Power Supplies AC/DC Adapter UK 15V dc Output, 1.2 A RS Stock No. 200-8923 Subtotal (1 unit) £11.83(exc. VAT) £11.83/unit Quantity	-	-	AC/DC Adapter	AC-DC Converter Power Supplies	15V dc	UK	-	-	-	-	-	18W	-	-	-	-	1	-	1.2A	3-Pin Plug	90.5mm	0°C	Regulated	45°C	-	-	-	CCC, CE, cULus, FCC, TUV, UL	53.5mm	-	-	85%	-	240V ac	-
In Stock RS PRO 65 W Power Adapter AC/DC Adapter C8 18V dc, 20 V dc Output RS Stock No. 839-5785 Subtotal (1 unit) £37.10(exc. VAT) £37.10/unit Quantity	-	-	AC/DC Adapter	Power Adapter	18, 20V dc	C8	-	-	-	-	Interchangeable	65W	-	-	-	-	1	-	-	IEC 320-C8	114mm	-	-	-	32mm	-	-	CE	50mm	-	-	87%	-	240V ac	-
In Stock RS PRO 60 W AC/DC Adapter Fixed Bare end 12V dc Output, 5 A RS Stock No. 125-4247 Subtotal (1 unit) £37.81(exc. VAT) £37.81/unit Quantity	-	-	AC/DC Adapter	-	12V dc	Fixed Bare end	-	-	-	-	-	60W	1500mm	-	-	-	1	-	5A	-	114mm	0°C	-	40°C	32mm	-	-	EN 55022 + EN 60950	51mm	-	-	75%	-	90V	-
In Stock RS PRO 72 W Power Adapter AC/DC Adapter C14 12V dc Output, 6 A RS Stock No. 904-8480 Subtotal (1 unit) £33.10(exc. VAT) £33.10/unit Quantity	-	-	AC/DC Adapter	Power Adapter	12V 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	72W	1.2m	-	-	-	1	-	6A	C14	113mm	0°C	-	40°C	35mm	-	-	ULcUL, TUVSUD, GS, FCC, ENIEC609501, CE, CB	49mm	-	-	88%	-	240V ac	-
In Stock RS PRO 5 W AC/DC Adapter AC/DC Adapter Type G 5V dc Output, 1 A RS Stock No. 123-6687 Subtotal (1 unit) £9.55(exc. VAT) £9.55/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	5V dc	Type G	-	-	-	-	USB Type A	5W	-	-	-	-	1	-	1A	UK Plug	47.3mm	0°C	-	40°C	27.5mm	-	-	CE, EN 60950-1	49.5mm	-	-	79.3%	-	240V ac	-
In Stock RS PRO 240 W AC/DC Adapter AC/DC Adapter IEC 320 C14 48V Output, 5 A RS Stock No. 270-7386 Subtotal (1 unit) £115.12(exc. VAT) £115.12/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	48V	IEC 320 C14	-	-	-	-	4-Pin Plug	240W	1000mm	-	-	-	1	-	5A	C14	200mm	0°C	-	40°C	40mm	-	-	EN/UL 62368-1	88.5mm	-	-	88%	-	264V ac	-
In Stock RS PRO 20 W Power Adapter AC/DC Adapter 3-Pin (UK) 5V dc Output, 2.5 A RS Stock No. 255-8081 Subtotal (1 unit) £16.92(exc. VAT) £16.92/unit Quantity	-	-	AC/DC Adapter	Power Adapter	5V dc	3-Pin (UK)	-	-	-	-	2.1 x 5.5 x 9.5	20W	1200mm	-	-	-	1	-	2.5A	UK Plug	76.8mm	0°C	-	40°C	54.3mm	-	-	IEC/EN/UL 62368-1	50mm	-	-	83.08%	-	240V ac	-
In Stock RS PRO 30 W AC-DC Converter Power Supplies AC/DC Adapter UK 24V dc Output, 1.25 A RS Stock No. 200-8941 Subtotal (1 unit) £16.23(exc. VAT) £16.23/unit Quantity	-	-	AC/DC Adapter	AC-DC Converter Power Supplies	24V dc	UK	-	-	-	-	-	30W	-	-	-	-	1	-	1.25A	-	94mm	0°C	Regulated	45°C	-	-	-	UL, TUV, FCC, cULus, CE, CCC	6mm	-	-	85%	-	240V ac	-
In Stock RS PRO 24 W AC/DC Adapter AC/DC Adapter 2-Pin (EU) 12V ac, 3 V ac, 4.5 V ac, 5 V ac, 6 V ac, 7.5 V ac, 9 V ac Output, 2 RS Stock No. 206-4927 Subtotal (1 unit) £17.82(exc. VAT) £17.82/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	12, 3, 4.5, 5, 6, 7.5, 9V ac	2-Pin (EU)	-	-	-	-	Interchangeable	24W	1.5m	-	-	-	7	-	2A	EU Plug	92.2mm	0°C	Regulated	40°C	46.2mm	-	-	CE, UL	35.8mm	-	-	84%	-	240V ac	-