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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 Quantity	-	-	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 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 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 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 2.1 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 Quantity	-	-	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 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 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 2.5 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
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 Pos	18VA	1800mm	-	-	-	2	-	750mA	-	106mm	-	-	-	55.5mm	-	CE	48.5mm	-	-	79%	-	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/DC Adapter AC/DC Adapter Type G 6 W 12V dc Output, 500 mA RS stock no. 175-3294 Subtotal (1 unit) R 141,33(exc. VAT) R 141,33/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	12V dc	Type G	-	-	-	2.1 x 5.5 x 12 mm Centre Positive	6W	1.5m	-	-	-	1	-	500mA	UK Plug	67mm	0°C	Regulated	40°C	64.8mm	-	CE, EN 60950-1	49.55mm	-	-	79.3%	-	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 Positi	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 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 USB Type A AC/DC Adapter AC/DC Adapter Type C 7.5 W 5V dc Output, 1.5 A RS stock no. 124-2182 Subtotal (1 unit) R 214,70(exc. VAT) R 214,70/unit Quantity	-	-	AC/DC Adapter	AC/DC Adapter	5V dc	Type C	-	-	-	USB Type A	7.5W	66.75mm	-	-	-	1	-	1.5A	EU Plug	66.75mm	-10°C	-	40°C	53.5mm	-	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	26.7mm	-	-	-	-	100V ac, 110V ac, 115V ac, 120V ac, 127V ac, 220V ac, 230V ac, 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 Quantity	-	-	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 2.1 x 5.5 x 12 mm Centre Positive AC/AC Adapter 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	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	51mm	-	-	-	-	240V ac
In Stock RS PRO 2.1 x 5.5 mm Jack AC/DC Adapter Interchangeable 15 W 6V Output, 2.5 A RS stock no. 270-7394 Subtotal (1 unit) R 428,50(exc. VAT) R 428,50/unit Quantity	-	-	AC/DC Adapter	-	6V	Interchangeable	-	-	-	2.1 x 5.5 mm Jack	15W	1500mm	-	-	-	1	-	2.5A	-	63.5mm	0°C	-	40°C	36mm	-	IEC/EN 62368-1	43.5mm	-	-	81.38%	-	264V ac
In Stock RS PRO Centre, 2.1 x 5.5 x 12 mm AC-DC Converter Power Supplies AC/DC Adapter 48 W 24V dc Output, 2 A RS stock no. 139-2354 Subtotal (1 unit) R 718,09(exc. VAT) R 718,09/unit Quantity	-	-	AC/DC Adapter	AC-DC Converter Power Supplies	24V dc	-	-	-	-	Centre, 2.1 x 5.5 x 12 mm	48W	1.5m	-	-	-	1	-	2A	IEC 320-C8	116mm	-20°C	-	40°C	35mm	-	IEC/EN 61558	52mm	-	-	88%	-	240V ac
In Stock RS PRO 2.5 x 5.5 mm Centre Positive Power Adapter AC/DC Adapter C14 120 W 24V dc Output, 5 A RS stock no. 175-3290 Subtotal (1 unit) R 2 034,63(exc. VAT) R 2 034,63/unit Quantity	-	-	AC/DC Adapter	Power Adapter	24V dc	C14	-	-	-	2.5 x 5.5 mm Centre Positive	120W	-	-	-	-	1	-	5A	IEC 320-C14	168mm	0°C	-	40°C	39mm	-	EN 60950-1, CE	66mm	-	-	88%	-	240V ac
Last RS stock RS PRO 2.1 x 5.5 x 11 mm Centre Positive AC-DC Converter Power Supplies AC/DC Adapter Global 18 W 24V dc Output, 750 mA RS stock no. 126-2119 Subtotal (1 unit) R 819,90(exc. VAT) R 819,90/unit Quantity	-	-	AC/DC Adapter	AC-DC Converter Power Supplies	24V dc	Global	-	-	-	2.1 x 5.5 x 11 mm Centre Positive	18W	1.8m	-	-	-	1	-	750mA	Universal Plug	30mm	0°C	-	45°C	88mm	-	UL cUL, TUV, RCM, ITE s, IEC 60950-1, IEC 60601-1, EN 6100-4-8, EN 6100-4-6, EN 6100-4-5, EN 6100-4-4, EN 6100-4-3, EN 6100-4-2, EN 6100-4-11, EN 6100-3-3, EN 6100-3-2, EN 60601-1, cULus, C	57mm	-	-	80%	-	240V ac
Currently unavailable RS PRO 2 Output AC-DC Converter Power Supplies AC/AC Adapter 48 VA 24V ac Output, 2 A RS stock no. 907-6258 Subtotal (1 unit) R 1 227,62(exc. VAT) R 1 227,62/unit Quantity	-	-	AC/AC Adapter	AC-DC Converter Power Supplies	24V ac	-	-	-	-	-	48VA	1800mm	-	-	-	2	-	2A	-	97mm	-	-	-	72mm	-	CE	68.5mm	-	-	79%	-	240V ac