which USB adaptor to choose?

devagup · May 21, 2021

Hi All, I have a product with the below techincal data and it comes only with a USB cable for now. I am unsure which USB adaptor I should choose. Can I use any usb adaptor with 100-240VAC, 5V DC and 1A or 2A specifications? Do i need to know the input voltage also perhaps? Thanks in advance.

[ElectriciansForums.net] which USB adaptor to choose?

Jim_e_Jib · May 22, 2021

Hi, yes, any adaptor with the specs you mention will do. The standard voltage for USB devices such as this is 5V and the current required to charge your device is less than 1A. A typical phone charger will do the job.

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Something like this should fit the bill if the charger end of your cable is USB A:

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telectrix · May 22, 2021

you need an adapter suited to your supply voltage.

Jim_e_Jib · May 22, 2021

telectrix said:
you need an adapter suited to your supply voltage.

These things are usually 'universal' and will work on most ac mains supply voltages and frequencies in common use. The OP's spec of 100-240v is a typical input range.