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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 complete 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 2.1 x 5.5 x 12 mm Centre Positive AC/AC Adapter AC/AC Adapter Type G 20 W 12V ac Output, 1.6 A RS stock no. 139-1775 Subtotal (1 unit) R 478,05(exc. VAT) R 478,05/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 2.1 x 5.5 mm AC-DC Power Adapter AC/DC Adapter EU 12 W 24V dc Output, 0.5 A RS stock no. 251-9222 Subtotal (1 unit) R 287,24(exc. VAT) R 287,24/unit Quantity	-	-	AC/DC Adapter	AC-DC Power Adapter	24V dc	EU	-	-	-	-	2.1 x 5.5 mm	12W	1.5m	-	-	-	1	-	0.5A	2-Pin	60.65mm	0°C	Regulated	40°C	58.1mm	-	-	-	IEC EN 62368-1, TUV, CE	29.14mm	-	-	82.96%	-	240V ac	-
In Stock RS PRO 2.1 x 5.5 x 12 mm Centre Positive AC/AC Adapter AC/AC Adapter Type C 20 W 12V ac Output, 1.6 A RS stock no. 139-1774 Subtotal (1 unit) R 472,84(exc. VAT) R 472,84/unit Quantity	-	-	AC/AC Adapter	AC/AC Adapter	12V ac	Type C	-	-	-	-	2.1 x 5.5 x 12 mm Centre Positive	20W	1.8m	-	-	-	1	-	1.6A	EU Plug	89mm	-20°C	-	40°C	51mm	-	-	-	IEC/EN 61558	60mm	-	-	-	-	240V ac	-
In Stock RS PRO 2.1 x 5.5 mm AC/DC Adapter IEC 320 C8 24 W 9V Output, 3 A RS stock no. 270-7405 Subtotal (1 unit) R 323,21(exc. VAT) R 323,21/unit Quantity	-	-	AC/DC Adapter	-	9V	IEC 320 C8	-	-	-	-	2.1 x 5.5 mm	24W	1800mm	-	-	-	1	-	3A	C8	90.5mm	0°C	-	45°C	31.5mm	-	-	-	EN 55032, IEC/EN/UL/AS/NZS 62368-1, GB 4943.1, FCC Part 15 Class B, EN 55035	49mm	-	-	86.62%	-	264V ac	-
In Stock RS PRO 5.5 x 2.1 x 12mm DC Jack AC/DC Adapter AC/DC Adapter 2-Pin (EU) 7 W 5V dc Output, 1.5 A RS stock no. 206-4909 Subtotal (1 unit) R 227,36(exc. VAT) R 227,36/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	5V dc	2-Pin (EU)	-	-	-	-	5.5 x 2.1 x 12mm DC Jack	7W	1.5m	-	-	-	1	-	1.5A	EU Plug	76.4mm	0°C	Regulated	40°C	33.7mm	-	-	-	UL, CE	23mm	-	-	77%	-	240V ac	-
In Stock RS PRO AC/DC Adapter C14 36 W 12V dc Output, 3 A RS stock no. 229-7855 Subtotal (1 unit) R 686,95(exc. VAT) R 686,95/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	33mm	-	-	88%	-	240V	-
Last RS stock RS PRO 2 Output 4-Way Connector, 6 x 1.5 mm, 8 Tip Connector, 2.1 x 5.5 mm Connector, 2.5 x 5.5 x 9.5mm, 2.5 x 5.5 x RS stock no. 907-6249 Subtotal (1 unit) R 293,48(exc. VAT) R 293,48/unit Quantity	-	-	AC/AC Adapter	AC-DC Converter Power Supplies	24V ac	EU, UK, 2-Pin (EU), US, AUS	-	-	-	-	4-Way Connector, 6 x 1.5 mm, 8 Tip Connector, 2.1 x 5.5 mm Connector, 2.5 x 5.5 x 9.5mm, 2.5 x 5.5 x 12mm, 6.3 x 3 mm, 5 x 1 mm, 3.5 x 1.35 mm, 2.1 x 5.5 x 10 mm, 2.1 x 5.5 x 10.5 mm Centre Positive Fema	18VA	1800mm	-	-	-	2	-	750mA	-	106mm	-	-	-	55.5mm	-	-	-	CE	48.5mm	-	-	79%	-	240V ac	-
In Stock RS PRO USB Type C AC/DC Adapter AC/DC Adapter 2-Pin (EU) 15 W 5V dc Output, 3 A RS stock no. 206-4924 Subtotal (1 unit) R 290,49(exc. VAT) R 290,49/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	5V dc	2-Pin (EU)	-	-	-	-	USB Type C	15W	1.5m	-	-	-	1	-	3A	EU Plug	73mm	-10°C	Regulated	40°C	56mm	-	-	-	CE, UL	30mm	-	-	82.1%	-	240V ac	-
In Stock RS PRO 2.1 x 5.5 x 11 mm Centre Positive Power Adapter AC/DC Adapter IEC 320 C14 72 W 24V dc Output, 3 A RS stock no. 204-7566 Subtotal (1 unit) R 679,91(exc. VAT) R 679,91/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 2.1 x 5.5 mm AC/DC Adapter AC/DC Adapter IEC 320 C14 20 W 5V Output, 4 A RS stock no. 270-7412 Subtotal (1 unit) R 550,91(exc. VAT) R 550,91/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	5V	IEC 320 C14	-	-	-	-	2.1 x 5.5 mm	20W	1800mm	-	-	-	1	-	4A	C14	99mm	0°C	-	40°C	36mm	-	-	-	EN/UL 62368-1	52mm	-	-	85%	-	264V ac	-
In Stock RS PRO 2.1 x 5.5 mm AC/DC Adapter AC/DC Adapter IEC 320 C8 25 W 5V Output, 5 A RS stock no. 270-7387 Subtotal (1 unit) R 572,40(exc. VAT) R 572,40/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	5V	IEC 320 C8	-	-	-	-	2.1 x 5.5 mm	25W	1000mm	-	-	-	1	-	5A	C8	104.6mm	0°C	-	40°C	33mm	-	-	-	UL 668, approved	46.9mm	-	-	84%	-	264V ac	-
In Stock RS PRO 2.1 x 5.5 mm Centre Positive AC/DC Adapter AC/DC Adapter Global 50.4 W 12V dc Output, 4.2 A RS stock no. 200-8928 Subtotal (1 unit) R 608,19(exc. VAT) R 608,19/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	12V dc	Global	-	-	-	-	2.1 x 5.5 mm Centre Positive	50.4W	-	-	-	-	1	-	4.2A	2-Pin	-	0°C	Regulated	45°C	-	-	-	-	CE, cULus, FCC, UL, TUV, CCC	-	-	-	88%	-	240V ac	-
In Stock RS PRO 2.1 x 5.5 mm AC-DC Power Adapter AC/DC Adapter EU 40 W 24V dc Output, 1.66 A RS stock no. 251-9227 Subtotal (1 unit) R 533,40(exc. VAT) R 533,40/unit Quantity	-	-	AC/DC Adapter	AC-DC Power Adapter	24V dc	EU	-	-	-	-	2.1 x 5.5 mm	40W	1.5m	-	-	-	1	-	1.66A	2-Pin	83.5mm	0°C	Regulated	40°C	50.2mm	-	-	-	RoHS, TUV-GS, REACH, EU 2019/1782, EN 62368-1/IEC 62368-1, EMC FCC Class B, CE	52mm	-	-	87.58%	-	240V ac	-
In Stock RS PRO 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, RS stock no. 904-8480 Subtotal (1 unit) R 800,61(exc. VAT) R 800,61/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 Centre, 2.1 x 5.5 x 12 mm AC-DC Converter Power Supplies AC/DC Adapter 12.5 W 10V dc Output, 1.25 A RS stock no. 139-2340 Subtotal (1 unit) R 398,17(exc. VAT) R 398,17/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 2.1 x 5.5 x 12 mm Centre Positive AC/DC Adapter AC/DC Adapter EU, Interchangeable, US 40 W 24V dc Output, 1.7 A RS stock no. 903-2911 Subtotal (1 unit) R 800,05(exc. VAT) R 800,05/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	24V dc	EU, Interchangeable, US	-	-	-	-	2.1 x 5.5 x 12 mm Centre Positive	40W	1.5m	-	-	-	1	-	1.7A	Universal Plug	90mm	0°C	-	40°C	59.4mm	-	-	-	CE, EN 60950-1	38mm	-	-	88.3%	-	240V ac	-
In Stock RS PRO 2.5 x 5.5 Interchangeable AC-DC Power Adapter AC/DC Adapter Australia, EU, UK, US 40 W 24V dc Output, 1.66 A RS stock no. 251-9228 Subtotal (1 unit) R 609,97(exc. VAT) R 609,97/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 2.1 x 5.5 x 12 mm AC-DC Converter Power Supplies AC/DC Adapter 12.5 W 12V dc Output, 1 A RS stock no. 139-2341 Subtotal (1 unit) R 325,77(exc. VAT) R 325,77/unit Quantity	-	-	AC/DC Adapter	AC-DC Converter Power Supplies	12V dc	-	-	-	-	-	2.1 x 5.5 x 12 mm	12.5W	1.5m	-	-	-	1	-	1A	IEC 320-C8	97mm	-20°C	Regulated	40°C	31mm	-	-	-	IEC/EN 61558	45mm	-	-	80.58%	-	240V ac	-
In Stock RS PRO 2.5 x 5.5 mm Centre Positive Switched Mode Power Supply AC/DC Adapter C14 50 W 24V dc Output, 2.1 A RS stock no. 303-973 Subtotal (1 unit) R 545,36(exc. VAT) R 545,36/unit Quantity	-	-	AC/DC Adapter	Switched Mode Power Supply	24V dc	C14	-	-	-	-	2.5 x 5.5 mm Centre Positive	50W	1.5m	-	-	-	1	-	2.1A	C14	121mm	0°C	-	40°C	35mm	-	-	-	UL, UKCA, SAA, PSE, KCC, CE, CCC	50mm	-	-	88%	-	264V ac	-
In Stock RS PRO Micro USB Type B AC/DC Adapter AC/DC Adapter Type C 7.5 W 5V dc Output, 1.5 A RS stock no. 124-2184 Subtotal (1 unit) R 239,28(exc. VAT) R 239,28/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	5V dc	Type C	-	-	-	-	Micro USB Type B	7.5W	1.5m	-	-	-	1	-	1.5A	EU Plug	35.68mm	-10°C	-	40°C	34.43mm	-	-	-	UL 60065, TUV/GS EN 60950-1, EU CoC V5, EN 61000-3-3, EN 61000-3-2, EN 55024, EN 55022, EN 55020, EN 55014-2, EN 55014-1, EN 55013, CE	17.25mm	-	-	-	-	100, 110, 115, 120, 127, 220, 230, 240V ac	-