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.


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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庫存編號 615-8880
BrandRS PRO
HK$75.90
單位
230V ac Linear Power Supply 3 V dc, 4.5 V dc, 6 V dc, 7.5 V dc, 9 V dc, 12 V dc Type G - British 3-Pin 500mA Unregulated - +25°C 0.75 x 2.35 x 10 mm Hollow Plug, 1.35 x 3.5 x 10 mm Hollow Plug, 1.7 x 4 x 10 mm Hollow Plug, 1.75 x 4.75 x 10 mm Hollow Plug, 2.1 x 5 x 12 mm Hollow Plug, 2.5 x 12 mm Jack Plug, 2.5 x 5.5 x 12 mm Hollow Plug, 3.5 x 15 mm Jack Plug 12W 1 92mm 1.8m -
RS庫存編號 148-963
BrandRS PRO
HK$133.13
單位
100 → 240V ac Switched Mode Power Supply 3 V dc, 4.5 V dc, 6 V dc, 7.5 V dc, 9 V dc, 12 V dc Type G - British 3-Pin - - - +25°C 2.35 x 10 mm Female Coaxial Plug, 2.5 x 12 mm Male Jack Plug, 3.5 x 10 mm Female Coaxial Plug, 3.5 x 15 mm Male Jack Plug, 4 x 10 mm Female Coaxial Plug, 4.75 x 10 mm Female Coaxial Plug, 5 x 12 mm Female Coaxial Plug, 5.5 x 12 mm Female Coaxial Plug 9.6W 1 82mm 1.8m -
RS庫存編號 907-6255
BrandRS PRO
HK$53.09
單位
90 → 264V ac USB Adapter 5 V dc Australia, European Plug, UK, US 0 → 1A - - +40°C USB Type A 5W 1 60.9mm - -
RS庫存編號 731-6065
BrandRS PRO
HK$231.04
單位
90 → 264V ac - 24 V dc European Plug 1.5A - - +40°C 2.5 x 5.5 x 9.5 mm Centre Positive 36W 1 98mm 1.2m -
RS庫存編號 903-2867
BrandRS PRO
HK$108.13
單位
90 → 264V ac Power Supply 15 V dc European, Interchangeable UK, US Plugtop 0 → 400mA - - +40°C - 6W 1 64mm 1.5m -
RS庫存編號 148-957
BrandRS PRO
HK$116.16
單位
100 → 240V ac Switched Mode Power Supply 3 V dc, 4.5 V dc, 6 V dc, 7.5 V dc, 9 V dc, 12 V dc European Plug - - - +25°C 2.35 x 10 mm Female Coaxial Plug, 2.5 x 12 mm Male Jack Plug, 3.5 x 10 mm Female Coaxial Plug, 3.5 x 15 mm Male Jack Plug, 4 x 10 mm Female Coaxial Plug, 4.75 x 10 mm Female Coaxial Plug, 5 x 12 mm Female Coaxial Plug, 5.5 x 12 mm Female Coaxial Plug 9.6W 1 82mm 1.8m -
RS庫存編號 903-2902
BrandRS PRO
HK$187.80
單位
90 → 264V ac Power Supply 12 V dc European, Interchangeable UK, US Plugtop 0 → 3A - - +40°C - 40W 1 90mm 1.5m -
RS庫存編號 726-2731
BrandRS PRO
HK$140.14
單位
90 → 264V ac - 15 V dc 2-Pin Type C - EuroPlug 400mA - - +40°C 2.1 x 5.5 x 9.5 mm Centre Positive 6W 1 64mm 1.2m -
RS庫存編號 131-4662
BrandRS PRO
HK$52.65
單位
90 → 264V ac Power Supply 5 V dc 2-Pin UK 0.05 → 1A - - +40°C Micro USB 5W 1 67mm 1.5m -
RS庫存編號 903-2879
BrandRS PRO
HK$148.53
單位
90 → 264V ac Power Supply 5 V dc European, Interchangeable UK, US Plugtop 0 → 3A - - +40°C - 18W 1 74mm 1.5m -
RS庫存編號 726-2738
BrandRS PRO
HK$140.14
單位
90 → 264V ac - 12 V dc 2-Pin Type C - EuroPlug 500mA - - +40°C 2.1 x 5.5 x 9.5 mm Centre Positive 6W 1 64mm 1.2m -
RS庫存編號 139-1780
BrandRS PRO
HK$80.14
單位
230 → 240V ac Linear Power Supply 12 V dc Type G - British 3-Pin 250mA Unregulated AC Plug +40°C 2.1 x5.5mm Centre Positive 3W 1 56mm 1.8m No
RS庫存編號 126-2119
BrandRS PRO
HK$165.12
單位
90 → 264V ac Power Adapter 24 V dc Global 750mA - - +45°C DC Plug 18W 1 30mm 1.8m Yes
RS庫存編號 124-2189
BrandRS PRO
HK$71.00
單位
90 → 264V ac Switched Mode Power Supply 9 V dc 2-Pin Type C - EuroPlug 0 → 1.33A - - +40°C 2.1 x 5.5 x 10 mm Centre Positive 12W 1 35.68mm 1.5m -
RS庫存編號 139-1781
BrandRS PRO
HK$92.34
單位
230 → 240V ac Linear Power Supply 5 V dc Type G - British 3-Pin 900mA Unregulated AC Plug +40°C 2.1 x5.5mm Centre Positive 4.5W 1 79mm 1.8m No
RS庫存編號 124-2179
BrandRS PRO
HK$63.22
單位
90 → 264V ac Switched Mode Power Supply 5 V dc European Plug 0 → 1.5A - - +40°C 2.1 x 5.5 x 10 mm Centre Positive 7.5W 1 35.68mm 1.5m -
RS庫存編號 124-4702
BrandRS PRO
HK$117.85
單位
90 → 264V ac Power Adapter 5 V dc Australia, European Plug, Japan, UK, US 2.4A - - +40°C 2.1 x 5.5 x 12 mm 12W 1 713.8mm 1.5m -
RS庫存編號 126-2120
BrandRS PRO
HK$210.47
單位
90 → 264V ac Power Supply 12 V dc Global 2A - - +45°C DC Plug 24W 1 30mm 1.5m Yes
RS庫存編號 126-2114
BrandRS PRO
HK$131.50
單位
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RS庫存編號 903-2882
BrandRS PRO
HK$144.13
單位
90 → 264V ac Power Supply 12 V dc European, Interchangeable UK, US Plugtop 0 → 1.5A - - +40°C - 18W 1 74mm 1.5m -