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 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.


...
Read more Read less

Filters

Viewing 1 - 20 of 124 products
Results per page
Description Price Input Voltage Type Output Voltage Plug Type Output Current Regulated/Unregulated Input Connector Maximum Temperature Output Connector Power Rating Number of Outputs Length Cable Length Medical Approved
RS Stock No. 121-7206
Mfr. Part No.VER18US090-JA
BrandXP Power
HK$135.79
Each
units
90 → 264V ac Switched Mode Power Supply 9 V dc Interchangeable 2A - - +60°C 5.5 x 2.1 x 12 DC Plug mm 18W 1 90.5mm 1.5m -
RS Stock No. 121-7145
Mfr. Part No.VEL18US090-UK-JA
BrandXP Power
HK$109.10
Each
units
90 → 264V ac Switched Mode Power Supply 9 V dc 2-Pin UK 2A - - +60°C 5.5 x 2.1 x 12 DC Plug mm 18W 1 90mm 1.5m -
RS Stock No. 121-7183
Mfr. Part No.VEP24US12
BrandXP Power
HK$146.25
Each
units
80 → 264V ac Switched Mode Power Supply 12 V dc Interchangeable 2A - - +40°C 2.5 x 5.5 mm DC Plug 24W 1 88mm 1.5m Yes
RS Stock No. 121-7179
Mfr. Part No.VEP24US05
BrandXP Power
HK$144.84
Each
units
80 → 264V ac Switched Mode Power Supply 5 V dc Interchangeable 2.5A - - +40°C 2.5 x 5.5 mm DC Plug 12.5W 1 88mm 1.5m Yes
RS Stock No. 121-7172
Mfr. Part No.VEP08US12
BrandXP Power
HK$120.70
Each
units
80 → 264V ac Switched Mode Power Supply 12 V dc Interchangeable 660mA - - +40°C 2.5 x 5.5 mm DC Plug 8W 1 72mm 1.8m Yes
RS Stock No. 121-7215
Mfr. Part No.VER24US150-JA
BrandXP Power
HK$165.96
Each
units
90 → 264V ac Switched Mode Power Supply 15 V dc Interchangeable 1.5A - - +60°C 5.5 x 2.1 x 12 DC Plug mm 24W 1 90.5mm 1.5m -
RS Stock No. 121-7119
Mfr. Part No.VEL05US050-UK-JA
BrandXP Power
HK$55.62
Each
units
90 → 264V ac Switched Mode Power Supply 5 V dc 2-Pin UK 1A - - +60°C 5.5 x 2.1 x 12 DC Plug mm 5W 1 55.1mm 1.5m -
RS Stock No. 121-7170
Mfr. Part No.VEP08US05
BrandXP Power
HK$120.70
Each
units
80 → 264V ac Switched Mode Power Supply 5 V dc Interchangeable 1.6A - - +40°C 2.5 x 5.5 mm DC Plug 8W 1 72mm 1.8m Yes
RS Stock No. 121-7216
Mfr. Part No.VER24US240-JA
BrandXP Power
HK$165.96
Each
units
90 → 264V ac Switched Mode Power Supply 24 V dc Interchangeable 1A - - +60°C 5.5 x 2.1 x 12 DC Plug mm 24W 1 90.5mm 1.5m -
RS Stock No. 121-7120
Mfr. Part No.VEL05US050-UK-MB
BrandXP Power
HK$61.44
Each
units
90 → 264V ac Switched Mode Power Supply 5 V dc 2-Pin UK 1A - - +60°C Mini USB Type B 5W 1 55.1mm 1.5m -
RS Stock No. 124-1929
Mfr. Part No.ACM06US05
BrandXP Power
HK$107.35
Each
units
90 → 264V ac Switched Mode Power Supply 5 V dc Interchangeable 1A - - +60°C 5.5 x 2.1 x 12 DC Plug mm 6W 1 73.5mm 1.8m Yes
RS Stock No. 121-7121
Mfr. Part No.VEL05US050-UK-UB
BrandXP Power
HK$55.62
Each
units
90 → 264V ac Switched Mode Power Supply 5 V dc 2-Pin UK 1A - - +60°C Micro USB 5W 1 55.1mm 1.5m -
RS Stock No. 121-7209
Mfr. Part No.VER18US150-JA
BrandXP Power
HK$135.79
Each
units
90 → 264V ac Switched Mode Power Supply 15 V dc Interchangeable 1.25A - - +60°C 5.5 x 2.1 x 12 DC Plug mm 18W 1 90.5mm 1.5m -
RS Stock No. 172-0727
Mfr. Part No.ACM36US36
BrandXP Power
HK$179.52
Each
units
92 → 264V ac Power Adapter 36 V dc Interchangeable 1A - - +60°C 2.5 x 5.5 x 11 mm Female Coaxial Plug 36W 1 96.7mm 1.5m Yes
RS Stock No. 124-1930
Mfr. Part No.ACM06US09
BrandXP Power
HK$102.60
Each
units
90 → 264V ac Switched Mode Power Supply 9 V dc Interchangeable 600mA - - +60°C 5.5 x 2.1 x 11 DC Plug mm 6W 1 73.5mm 1.8m Yes
RS Stock No. 172-0718
Mfr. Part No.VEU10US050-UK
BrandXP Power
HK$66.73
Each
units
92 → 264V ac USB Adapter 5 V dc 2-Pin UK 2.1A - - +60°C USB 10W 1 51mm - -
RS Stock No. 121-7122
Mfr. Part No.VEL05US050-US-BB
BrandXP Power
HK$46.95
Each
units
90 → 264V ac Switched Mode Power Supply 5 V dc US 1A - - +60°C USB Type A 5W 1 55.1mm 1.5m -
RS Stock No. 121-7211
Mfr. Part No.VER18US240-JA
BrandXP Power
HK$135.06
Each
units
90 → 264V ac Switched Mode Power Supply 24 V dc Interchangeable 750mA - - +60°C 5.5 x 2.1 x 12 DC Plug mm 18W 1 90.5mm 1.5m -
RS Stock No. 121-7204
Mfr. Part No.VER12US120-JA
BrandXP Power
HK$115.78
Each
units
90 → 264V ac Switched Mode Power Supply 12 V dc Interchangeable 1A - - +60°C 5.5 x 2.1 x 12 DC Plug mm 12W 1 76.5mm 1.5m -
RS Stock No. 136-0658
Mfr. Part No.ACM12US12
BrandXP Power
HK$132.77
Each
units
90 → 264V ac Power Adapter 12 V dc - 1A - - +60°C - 12W 1 76mm 1.5m Yes