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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 24 W AC/DC Adapter AC/DC Adapter Global 12V dc Output, 2 A RS Stock No. 126-2120 Subtotal (1 unit) £34.82(exc. VAT) £34.82/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	12V dc	Global	-	-	-	-	2.1 x 5.5 x 11 mm Centre Positive	24W	1.5m	-	-	-	1	-	2A	Universal Plug	30mm	0°C	-	45°C	88mm	-	-	CE, EN 60950-1	57mm	-	-	80%	-	240V ac	-
In Stock RS PRO 62.4 W Power Adapter AC/DC Adapter IEC 320 C14 48V dc Output, 1.3 A RS Stock No. 204-7568 Subtotal (1 unit) £28.27(exc. VAT) £28.27/unit Quantity	-	-	AC/DC Adapter	Power Adapter	48V dc	IEC 320 C14	-	-	-	-	2.1 x 5.5 x 11 mm Centre Positive	62.4W	-	-	-	-	1	-	1.3A	IEC 320-C14	120mm	0°C	-	40°C	36mm	-	-	UL, TUV, FCC, cULus, CE, CCC	52.5mm	-	-	88%	-	240V ac	-
In Stock RS PRO 180 W Switched Mode Power Supply AC/DC Adapter C14 24V dc Output RS Stock No. 303-978 Subtotal (1 unit) £76.93(exc. VAT) £76.93/unit Quantity	-	-	AC/DC Adapter	Switched Mode Power Supply	24V dc	C14	-	-	-	-	4 Pin DIN Connector	180W	1.2m	-	-	-	1	-	-	C14	145mm	0°C	-	40°C	31mm	-	-	CE, UKCA, UL	65mm	-	-	80%	-	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	-	-	-	-	-	-
In Stock RS PRO 18 W AC-DC Converter Power Supplies AC/DC Adapter Interchangeable 12V dc Output, 1.5 A RS Stock No. 200-8920 Subtotal (1 unit) £15.02(exc. VAT) £15.02/unit Quantity	-	-	AC/DC Adapter	AC-DC Converter Power Supplies	12V dc	Interchangeable	-	-	-	-	2.5 x 5.5 mm Centre Positive	18W	-	-	-	-	1	-	1.5A	-	210mm	0°C	Regulated	45°C	37mm	-	-	TUV, UL, cULus, CE, CCC, FCC	130mm	-	-	85.0%	-	240V ac	-
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 20 W AC/AC Adapter AC/AC Adapter Type G 12V ac Output, 1.6 A RS Stock No. 139-1775 Subtotal (1 unit) £17.34(exc. VAT) £17.34/unit Quantity	-	-	AC/AC Adapter	AC/AC Adapter	12V ac	Type G	-	-	-	-	2.1 x 5.5 x 12 mm Centre Positive	20W	1.8m	-	-	-	1	-	1.6A	UK Plug	87.2mm	-20°C	-	40°C	57mm	-	-	IEC/EN 61558	56.5mm	-	-	-	-	240V ac	-
In Stock RS PRO 12 W Switched Mode Power Supply AC/DC Adapter US, Australia, EU, UK 12V dc, 3 V dc, 4.5 V dc, 5 V dc, 6 V dc, 7.5 RS Stock No. 304-010 Subtotal (1 unit) £20.53(exc. VAT) £20.53/unit Quantity	-	-	AC/DC Adapter	Switched Mode Power Supply	12, 3, 4.5, 5, 6, 7.5, 9V dc	US, Australia, EU, UK	-	-	-	-	Multi-Choice	12W	1.8m	-	-	-	4	-	-	Multi-Head	79mm	0°C	-	25°C	40mm	-	-	CE, UKCA, UL, RCM	43mm	-	-	82%	-	264V ac	-
Currently unavailable RS PRO 24 W AC/DC Adapter Type G 12V Output, 2 A RS Stock No. 175-3322 Subtotal (1 unit) £11.33(exc. VAT) £11.33/unit Quantity	-	-	AC/DC Adapter	-	12V	Type G	-	-	-	-	2.1 x 5.5 x 12 mm Centre Positive	24W	1.5m	-	-	-	5	-	2A	UK Plug	74.5mm	0°C	Regulated	40°C	88.7mm	-	-	-	50.4mm	-	-	-	-	-	-
In Stock RS PRO 11 W AC/DC Adapter AC/DC Adapter Type G 18V dc Output, 600 mA RS Stock No. 139-2270 Subtotal (1 unit) £13.41(exc. VAT) £13.41/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	18V dc	Type G	-	-	-	-	2.1 x 5.5 x 12 mm Centre Positive	11W	1.8m	-	-	-	1	-	600mA	UK Plug	87mm	-20°C	Unregulated	40°C	57mm	-	-	IEC/EN 61558	58.5mm	-	-	-	-	240V ac	-
In Stock RS PRO 300 W AC/DC Adapter C14 14V dc Output, 25 A RS Stock No. 229-7885 Subtotal (1 unit) £212.52(exc. VAT) £212.52/unit Quantity	-	-	AC/DC Adapter	-	14V dc	C14	-	-	-	-	-	300W	1.5m	-	-	-	1	-	25A	-	254mm	0°C	-	40°C	116mm	-	-	FCC, CE, cULus, UL, TUV, CCC	116mm	-	-	89%	-	240V	-
In Stock RS PRO 12.5 W AC-DC Converter Power Supplies AC/DC Adapter 10V dc Output, 1.25 A RS Stock No. 139-2340 Subtotal (1 unit) £16.59(exc. VAT) £16.59/unit Quantity	-	-	AC/DC Adapter	AC-DC Converter Power Supplies	10V dc	-	-	-	-	-	Centre, 2.1 x 5.5 x 12 mm	12.5W	1.5m	-	-	-	1	-	1.25A	IEC 320-C8	97mm	-20°C	-	40°C	31mm	-	-	IEC/EN 61558	45mm	-	-	80.58%	-	240V ac	-
In Stock RS PRO 50 W AC/DC Adapter IEC 320 C8 12V Output, 4.16 A RS Stock No. 270-7408 Subtotal (1 unit) £37.75(exc. VAT) £37.75/unit Quantity	-	-	AC/DC Adapter	-	12V	IEC 320 C8	-	-	-	-	2.1 x 5.5 mm	50W	-	-	-	-	1	-	4.16A	C8	97.5mm	0°C	-	40°C	32.3mm	-	-	IEC/EN 60601-1	52.5mm	-	-	88%	-	264V ac	-
In Stock RS PRO 90 W Switched Mode Power Supply AC/DC Adapter C14 24V dc Output RS Stock No. 303-982 Subtotal (1 unit) £46.97(exc. VAT) £46.97/unit Quantity	-	-	AC/DC Adapter	Switched Mode Power Supply	24V dc	C14	-	-	-	-	2.5 mm Centre Positive	90W	1.2m	-	-	-	1	-	-	C14	135mm	0°C	-	40°C	35mm	-	-	CE, UL, UKCA	55mm	-	-	88%	-	264V 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	-
Temporarily out of 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 18 W AC/DC Adapter Interchangeable 24V Output, 0.75 A RS Stock No. 270-7398 Subtotal (1 unit) £18.95(exc. VAT) £18.95/unit Quantity	-	-	AC/DC Adapter	-	24V	Interchangeable	-	-	-	-	2.1 x 5.5 mm Jack	18W	1500mm	-	-	-	1	-	0.75A	-	63.5mm	0°C	-	40°C	36mm	-	-	IEC/EN 62368-1	43.5mm	-	-	81.38%	-	264V ac	-
In Stock RS PRO 12 W AC/DC Adapter AC/DC Adapter 2-Pin (EU) 12V dc, 3 V dc, 4.5 V dc, 5 V dc, 6 V dc, 7.5 V dc, 9 V dc Output, 1 RS Stock No. 206-4918 Subtotal (1 unit) £12.68(exc. VAT) £12.68/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	12, 3, 4.5, 5, 6, 7.5, 9V dc	2-Pin (EU)	-	-	-	-	Interchangeable	12W	1.5m	-	-	-	7	-	1A	EU Plug	75.5mm	0°C	Regulated	40°C	43.3mm	-	-	CE, UL	35.8mm	-	-	73%	-	240V ac	-
In Stock RS PRO 50 W AC/DC Adapter Interchangeable 12V Output, 4.16 A RS Stock No. 270-7407 Subtotal (1 unit) £33.45(exc. VAT) £33.45/unit Quantity	-	-	AC/DC Adapter	-	12V	Interchangeable	-	-	-	-	2.1 x 5.5 mm DC Plug	50W	1.5m	-	-	-	1	-	4.16A	-	-	0°C	-	45°C	-	-	-	IEC/EN 60601-1, EN 55032, FCC Part 15 Class B, IEC/EN 62368-1	-	-	-	87.76%	-	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	-