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.

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 its important to check whether its 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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Description Price Input Voltage Type Output Voltage Plug Type Output Current Maximum Temperature Output Connector Input Connector Number of Outputs Power Rating Length Regulated/Unregulated Cable Length Medical Approved
RS Stock No. 121-7141
Mfr. Part No.VEL12US120-EU-JA
BrandXP Power
HK$99.57
Each
units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Switched Mode Power Supply 12 V dc Type C 1A +60°C 2.1 x 5.5 x 12 mm Centre Positive EU Plug 1 12W 76mm - 1.5m -
RS Stock No. 121-7142
Mfr. Part No.VEL12US120-UK-JA
BrandXP Power
HK$103.67
Each
units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Switched Mode Power Supply 12 V dc Type G 1A +60°C 2.1 x 5.5 x 12 mm Centre Positive UK Plug 1 12W 76mm - 1.5m -
RS Stock No. 472-8421
Mfr. Part No.MPP6 9V
BrandFriwo
HK$254.98
Each
units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Switched Mode Power Supply 9 V dc Australia, European Plug, Japan, UK, US 550mA +40°C Interchangeable Universal Plug 1 6W 65mm - 2m -
RS Stock No. 121-7143
Mfr. Part No.VEL12US120-US-JA
BrandXP Power
HK$99.59
Each
units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Switched Mode Power Supply 12 V dc Type A 1A +60°C 2.1 x 5.5 x 12 mm Centre Positive US Plug 1 12W 76mm - 1.5m -
RS Stock No. 117-6180
Mfr. Part No.GST25E18-P1J
BrandMean Well
HK$121.08
Each
units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Switched Mode Power Supply 18 V dc Type C 1.38A +70°C 2.1 x 5.5 x 11 mm Centre Positive EU Plug 1 25W 79mm - 1.8m -
RS Stock No. 121-7144
Mfr. Part No.VEL18US090-EU-JA
BrandXP Power
HK$112.19
Each
units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Switched Mode Power Supply 9 V dc Type C 2A +60°C 2.1 x 5.5 x 12 mm Centre Positive EU Plug 1 12W 90mm - 1.5m -
RS Stock No. 121-7161
Mfr. Part No.VEL24US150-US-JA
BrandXP Power
HK$127.58
Each
units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Switched Mode Power Supply 15 V dc Type A 1.6A +60°C 2.1 x 5.5 x 12 mm Centre Positive US Plug 1 24W 90mm - 1.5m -
RS Stock No. 117-6181
Mfr. Part No.GST25E24-P1J
BrandMean Well
HK$121.08
Each
units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Switched Mode Power Supply 24 V dc Type C 1.04A +70°C 2.1 x 5.5 x 11 mm Centre Positive EU Plug 1 25W 79mm - 1.8m -
RS Stock No. 660-8420
Mfr. Part No.8194049
BrandAnsmann
HK$117.25
Each
units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Switched Mode Power Supply 12 V dc Type C 600mA +40°C Interchangeable EU Plug 1 7.2W 60mm Regulated 1.8m Yes
RS Stock No. 121-7114
Mfr. Part No.VEL05US050-EU-BB
BrandXP Power
HK$43.99
Each
units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Switched Mode Power Supply 5 V dc Type C 1A +60°C USB Type A EU Plug 1 5W 55.1mm - 1.5m -
RS Stock No. 472-8522
Mfr. Part No.PP8 UK 24V MED
BrandFriwo
HK$305.56
Each
units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Switched Mode Power Supply 24 V dc Type G 330mA +40°C Interchangeable UK Plug 1 8W 77mm - 2m Yes
RS Stock No. 121-7162
Mfr. Part No.VEL24US240-EU-JA
BrandXP Power
HK$127.58
Each
units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Switched Mode Power Supply 24 V dc Type C 1A +60°C 2.1 x 5.5 x 12 mm Centre Positive EU Plug 1 24W 90mm - 1.5m -
RS Stock No. 903-2908
BrandRS PRO
HK$170.00
Each
units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Power Supply 24 V dc Type C 1A +40°C 2.1 x 5.5 x 12 mm Centre Positive EU Plug 1 24W 79.1mm - 1.8m -
RS Stock No. 117-6182
Mfr. Part No.GST25E28-P1J
BrandMean Well
HK$191.96
Each
units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Switched Mode Power Supply 28 V dc Type C 890mA +70°C 2.1 x 5.5 x 11 mm Centre Positive EU Plug 1 25W 79mm - 1.8m -
RS Stock No. 121-7115
Mfr. Part No.VEL05US050-EU-JA
BrandXP Power
HK$57.19
Each
units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Switched Mode Power Supply 5 V dc Type C 1A +60°C 2.1 x 5.5 x 12 mm Centre Positive EU Plug 1 5W 55.1mm - 1.5m -
RS Stock No. 124-2182
BrandRS PRO
HK$71.16
Each
units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Power Supply 5 V dc Type C 1.5A +40°C USB Type A EU Plug 1 7.5W 66.75mm - - -
RS Stock No. 400-6765
Mfr. Part No.9581000046
BrandMascot
HK$151.35
Each
units
230V ac Linear Power Supply 9 V dc Type C 300mA +40°C Interchangeable EU Plug 1 2.7W 56mm - - -
RS Stock No. 124-2188
BrandRS PRO
HK$88.77
Each
units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Switched Mode Power Supply 5 V dc Type C 2.4A +40°C 2.1 x 5.5 x 10 mm Centre Positive EU Plug 1 12W 35.68mm - 1.5m -
RS Stock No. 136-0658
Mfr. Part No.ACM12US12
BrandXP Power
HK$123.17
Each
units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Power Adapter 12 V dc Optional 1A +60°C 2.5 x 5.5 x 11 mm Centre Positive Universal Plug 1 12W 76mm - 1.5m Yes
RS Stock No. 161-8176
Mfr. Part No.FW8030/09
BrandFriwo
HK$497.75
Each
units
100 V ac, 110 V ac, 115 V ac, 120 V ac, 127 V ac, 220 V ac, 230 V ac, 240 V ac Switched Mode Power Supply 9 V dc Global Plug 3.3A +45°C Interchangeable Universal Plug 1 39.7W 55mm - 1.83m -
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