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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 mm Centre Positive AC-DC Converter Power Supplies AC/DC Adapter EU 30 W 12V dc Output, 2.5 A RS stock no. 200-8942 Subtotal (1 unit) R 358,39(exc. VAT) R 358,39/unit Units	-	-	AC/DC Adapter	AC-DC Converter Power Supplies	12V dc	EU	-	-	-	2.1 x 5.5 mm Centre Positive	30W	-	-	-	-	1	-	2.5A	-	94mm	0°C	Regulated	45°C	-	-	CCC, CE, cULus, FCC, TUV, UL	6mm	-	-	85%	-	240V ac
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 Units	-	-	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 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 Units	-	-	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 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 Units	-	-	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 2.1 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 Units	-	-	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 x 12 mm Centre Positive AC/DC Adapter AC/DC Adapter Type C 36 W 12V dc Output, 3 A RS stock no. 175-3327 Subtotal (1 unit) R 420,08(exc. VAT) R 420,08/unit Units	-	-	AC/DC Adapter	AC/DC Adapter	12V dc	Type C	-	-	-	2.1 x 5.5 x 12 mm Centre Positive	36W	-	-	-	-	1	-	3A	EU Plug	74.5mm	0°C	Regulated	40°C	88.7mm	-	EN 60950-1, CE	50.4mm	-	-	86.8%	-	240V ac
In Stock RS PRO AC/DC Adapter C14 65 W 36V dc Output, 1.81 A RS stock no. 229-7871 Subtotal (1 unit) R 1 102,00(exc. VAT) R 1 102,00/unit Units	-	-	AC/DC Adapter	-	36V dc	C14	-	-	-	-	65W	1.5m	-	-	-	1	-	1.81A	-	119mm	0°C	-	40°C	60mm	-	TUV, FCC, cULus, CE, CCC, UL	36mm	-	-	89%	-	240V
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 Units	-	-	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 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 Units	-	-	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/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 Units	-	-	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 2.1 x 5.5 x 12 mm Centre Positive AC/DC Adapter AC/DC Adapter Type C 5 W 5V dc Output, 1 A RS stock no. 175-3297 Subtotal (1 unit) R 143,29(exc. VAT) R 143,29/unit Units	-	-	AC/DC Adapter	AC/DC Adapter	5V dc	Type C	-	-	-	2.1 x 5.5 x 12 mm Centre Positive	5W	1.5m	-	-	-	1	-	1A	EU Plug	67mm	0°C	Regulated	40°C	72.2mm	-	EN 60950-1, CE	26mm	-	-	82.95%	-	240V ac
In Stock RS PRO 2.1 x 5.5 x 10 mm Centre Positive AC/DC Adapter AC/DC Adapter Type C 7.5 W 5V dc Output, 1.5 A RS stock no. 124-2179 Subtotal (1 unit) R 249,26(exc. VAT) R 249,26/unit Units	-	-	AC/DC Adapter	AC/DC Adapter	5V dc	Type C	-	-	-	2.1 x 5.5 x 10 mm Centre Positive	7.5W	1.5m	-	-	-	1	-	1.5A	EU Plug	35.68mm	-10°C	-	40°C	34.43mm	-	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, TUV/GS EN 60950-1, UL 60065	17.25mm	-	-	-	-	240V ac
In Stock RS PRO 2.1 x 5.5 x 12 mm Centre Positive AC/AC Adapter AC/DC Adapter Type C 8 W 18V ac Output, 460 mA RS stock no. 139-1771 Subtotal (1 unit) R 320,13(exc. VAT) R 320,13/unit Units	-	-	AC/DC Adapter	AC/AC Adapter	18V ac	Type C	-	-	-	2.1 x 5.5 x 12 mm Centre Positive	8W	1.8m	-	-	-	1	-	460mA	EU Plug	62mm	-20°C	-	40°C	42mm	-	IEC/EN 61558	51mm	-	-	-	-	240V ac
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 Units	-	-	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 Pos	18VA	1800mm	-	-	-	2	-	750mA	-	106mm	-	-	-	55.5mm	-	CE	48.5mm	-	-	79%	-	240V ac
Last RS stock RS PRO 2.1 x 5.5 x 12 mm Centre Positive - Straight AC-DC Converter Power Supplies AC/DC Adapter C14 45 W 36V dc Output, RS stock no. 175-3279 Subtotal (1 unit) R 1 304,38(exc. VAT) R 1 304,38/unit Units	-	-	AC/DC Adapter	AC-DC Converter Power Supplies	36V dc	C14	-	-	-	2.1 x 5.5 x 12 mm Centre Positive - Straight	45W	47mm	-	-	-	1	-	1.21A	IEC 320-C14	47mm	0°C	-	40°C	107mm	-	CE, EN 60950-1	30.1mm	-	-	83%	-	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 Units	-	-	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 Positi	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 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 Units	-	-	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 x 12 mm Centre Positive AC/DC Adapter AC/DC Adapter Type C 11 W 12V dc Output, 900 mA RS stock no. 139-1790 Subtotal (1 unit) R 386,63(exc. VAT) R 386,63/unit Units	-	-	AC/DC Adapter	AC/DC Adapter	12V dc	Type C	-	-	-	2.1 x 5.5 x 12 mm Centre Positive	11W	1.8m	-	-	-	1	-	900mA	EU Plug	89mm	-20°C	Unregulated	40°C	51mm	-	IEC/EN 61558	60mm	-	-	-	-	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 Units	-	-	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 2.1 x 5.5 x 12 mm Centre Positive AC/AC Adapter AC/AC Adapter Type C 8 W 9V ac Output, 950 mA RS stock no. 139-1768 Subtotal (1 unit) R 332,76(exc. VAT) R 332,76/unit Units	-	-	AC/AC Adapter	AC/AC Adapter	9V ac	Type C	-	-	-	2.1 x 5.5 x 12 mm Centre Positive	8W	1.8m	-	-	-	1	-	950mA	EU Plug	62mm	-20°C	Regulated	40°C	42mm	-	IEC/EN 61558	51mm	-	-	-	-	240V ac