How to select an AC DC adapter for your device?

This shows the voltage range, frequency and current consumption of the power adapter. They are used with 100V to 240 input. North America /Japan/Korea/South America: 100-120v Input

 

1. Check with Input Voltage

This shows the voltage range, frequency and current consumption of the power adapter. They are used with 100V to 240 input.

North America /Japan/Korea/South America: 100-120v Input

European Union: 220V to 240V input

Australia: 230V to 240V Input

West Asia: 220V input

Choosing an adapter with a right AC input ,please check your input voltage in your country and area. TDX adapters with a wide of range for 100V to 240V input. Don’t worried about this, Wherever you are, the adapter can work.

 

 

 

2. Check with output voltage of device

This is the most important information we require. Using the same rating label, the output states the output voltage, whether the output is AC or DC and the Maximum Current output.

 

With a higher or lower voltage or current rating may cause the connected device to malfunction.Voltage is lower than the device’s input voltage even when their current ratings are the same. Using an adapter with a higher voltage will cause the connected device to detect an over voltage. An AC adapter supplying electricity at a higher voltage than required will cause the overheat. Sending power at a higher voltage will also shorten the lifespan of the device and may fry its internal circuits.

 

Using an AC adapter with a different current rating can be an issue. When considering how to choose an AC adapter, avoid picking one that delivers a lower current than required by the device. Even when both the adapter and the device have the same voltage rating, the device will attempt to draw more current than the AC adapter can manage.The issue is that adapter becomes overheat. The device may fail to power on or struggle to stay on. If the current is too low, the electronic device may not start to work, but its battery will not charge.

 

This recommendation holds true, as long as both devices have the same voltage rating. For example, a 12V/1A adapter can safely power a 12V/500mA device.

 

 

3. Check with polarity of connector

The last thing to consider when researching how to choose the right power adapter is polarity. The polarity of the AC adapter’s connector must match that of the power input or port on the device. There are two types of connector polarities: center positive and center negative. It is worth noting in an AC adapter buying guide that most power adapters use center-positive connectors.

 

You can check with you device the icon on your device , A center-positive connector in the AC adapter has a tip that has a positive polarity. Its barrel or ring has negative polarity. A center negative connector has the opposite arrangement. It is essential to differentiate the symbols for both types of connectors when learning how to choose the right AC adapter for your device. Manufacturers may denote polarity by putting + (positive) and - (negative) signs in front of voltage ratings. Alternatively, there many size of connectors for choosing,Such as 5.5*2.1*10mm,5.5*2.5*10mm ,Then you need to measure the inside size and outside size with calipers.If you don’t know how to measure,Please contact us,we will help you with a guidance.