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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 Type C 20 W 12V ac Output, 1.6 A RS stock no. 139-1774 Subtotal (1 unit) R 476,86(exc. VAT) R 476,86/unit Quantity	-	-	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	51mm	-	-	-	-	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 288,92(exc. VAT) R 288,92/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 G 20 W 12V ac Output, 1.6 A RS stock no. 139-1775 Subtotal (1 unit) R 480,42(exc. VAT) R 480,42/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	-
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 295,01(exc. VAT) R 295,01/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 Centre, 2.1 x 5.5 x 12 mm AC-DC Converter Power Supplies AC/DC Adapter 35 W 13.5V dc Output, 2.6 A RS stock no. 139-2348 Subtotal (1 unit) R 550,88(exc. VAT) R 550,88/unit Quantity	-	-	AC/DC Adapter	AC-DC Converter Power Supplies	13.5V dc	-	-	-	-	-	Centre, 2.1 x 5.5 x 12 mm	35W	1.5m	-	-	-	1	-	2.6A	IEC 320-C8	86mm	-20°C	-	40°C	31mm	-	-	-	IEC/EN 61558	47mm	-	-	87.4%	-	240V ac	-
Temporarily out of stock RS PRO 2.1 x 5.5 x 12 mm Centre Positive AC/DC Adapter AC/DC Adapter Type G 36 W 12V dc Output, 3 A RS stock no. 175-3326 Subtotal (1 unit) R 430,22(exc. VAT) R 430,22/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	12V dc	Type G	-	-	-	-	2.1 x 5.5 x 12 mm Centre Positive	36W	-	-	-	-	1	-	3A	UK Plug	115mm	0°C	Regulated	40°C	42mm	-	-	-	EN 60950-1, CE	52mm	-	-	87%	-	240V ac	-
In Stock RS PRO 2.5 x 5.5 Power Adapter AC/DC Adapter 3-Pin (IEC) 140 W 20V dc Output, 7 A RS stock no. 175-2799 Subtotal (1 unit) R 1 952,30(exc. VAT) R 1 952,30/unit Quantity	-	-	AC/DC Adapter	Power Adapter	20V dc	3-Pin (IEC)	-	-	-	-	2.5 x 5.5	140W	1.2m	-	-	-	1	-	7A	IEC C14	173mm	0°C	-	45°C	37mm	-	-	-	CCC, UL, FCC, TUV, cULus, CE	71mm	-	-	88%	-	240V ac	-
In Stock RS PRO AC-DC Converter Power Supplies AC/DC Adapter 2-Pin (IEC) 60 W 12V dc Output, 5 A RS stock no. 200-8934 Subtotal (1 unit) R 624,40(exc. VAT) R 624,40/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 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. 731-6122 Subtotal (1 unit) R 2 388,28(exc. VAT) R 2 388,28/unit Quantity	-	-	AC/DC Adapter	Linear Power Supply	24V dc	C8	-	-	-	-	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	90W	1200mm	-	-	-	1	-	3.75A	IEC 320-C8	118mm	0°C	-	40°C	16.8mm	-	-	-	ENIEC609501, FCC, GS, ULcUL, CB, CE, TUVSUD	64mm	-	-	87%	-	240V ac	-
In Stock RS PRO 2.1 x 5.5 x 12 mm Centre Positive AC/AC Adapter Type C 5 W 12V ac Output, 400 mA RS stock no. 139-1764 Subtotal (1 unit) R 270,38(exc. VAT) R 270,38/unit Quantity	-	-	AC/AC Adapter	-	12V ac	Type C	-	-	-	-	2.1 x 5.5 x 12 mm Centre Positive	5W	1.8m	-	-	-	1	-	400mA	EU Plug	62mm	-20°C	-	40°C	42mm	-	-	-	IEC/EN 61558	42mm	-	-	-	-	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 691,29(exc. VAT) R 691,29/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 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 805,91(exc. VAT) R 805,91/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 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 321,05(exc. VAT) R 321,05/unit Quantity	-	-	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	-
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 415,17(exc. VAT) R 415,17/unit Quantity	-	-	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 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 554,25(exc. VAT) R 554,25/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 x 12 mm AC/AC Adapter AC/AC Adapter Type C 14 W 24V ac Output, 580 mA RS stock no. 139-1773 Subtotal (1 unit) R 406,29(exc. VAT) R 406,29/unit Quantity	-	-	AC/AC Adapter	AC/AC Adapter	24V ac	Type C	-	-	-	-	2.1 x 5.5 x 12 mm	14W	1.8m	-	-	-	1	-	580mA	EU Plug	89mm	-20°C	-	40°C	61mm	-	-	-	IEC/EN 61558	60mm	-	-	-	-	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. 904-8486 Subtotal (1 unit) R 581,85(exc. VAT) R 581,85/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	36W	1.2m	-	-	-	1	-	3A	C14	100mm	0°C	-	40°C	31mm	-	-	-	ULcUL, TUVSUD, GS, FCC, ENIEC609501, CE, CB	45mm	-	-	-	-	240V ac	-
In Stock RS PRO AC/DC Adapter C14 36 W 18V dc Output, 2 A RS stock no. 229-7857 Subtotal (1 unit) R 749,18(exc. VAT) R 749,18/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 2.1 x 5.5 mm AC/DC Adapter IEC 320 C8 20 W 5V Output, 4 A RS stock no. 270-7403 Subtotal (1 unit) R 705,50(exc. VAT) R 705,50/unit Quantity	-	-	AC/DC Adapter	-	5V	IEC 320 C8	-	-	-	-	2.1 x 5.5 mm	20W	1200mm	-	-	-	1	-	4A	C8	90.5mm	0°C	-	40°C	30.6mm	-	-	-	FCC Part 18 Class B, IEC/EN 60601-1-2	31.5mm	-	-	83%	-	264V ac	-
In Stock RS PRO 2.5 x 5.5 Power Adapter AC/DC Adapter 3-Pin (IEC) 150 W 24V dc Output, 6.25 A RS stock no. 175-2800 Subtotal (1 unit) R 1 967,85(exc. VAT) R 1 967,85/unit Quantity	-	-	AC/DC Adapter	Power Adapter	24V dc	3-Pin (IEC)	-	-	-	-	2.5 x 5.5	150W	1.5m	-	-	-	1	-	6.25A	IEC C14	173mm	0°C	-	40°C	37mm	-	-	-	FCC, CCC, CE, cULus, TUV, UL	71mm	-	-	88%	-	240V ac	-