Questions about Voltage and Milliamps

[Mangazo]

Hello

I have the following problem, I lost an adapter for an electrical item, the thing is that I want to buy an adapter and in the market I can't find the specific one, so my doubt is how to avoid burning my item, what characteristics should I look for when buying

The item uses these characteristics
Input 100-240V 50/60HZ 0.2A (which is the standard in Chile)
Output 3V 0.9A 2.7W
And the device supports 3V / 300mA

And in the market I find adapters:
of 5V / 300mA
or of 3V / 1200mA
or of DC 6.0V +- 0.5V / DC 200-300mA

Does voltage over 3 damage it? Does 1200mA damage it? +- 0.5V means it varies from 6V? many doubts.. hehe

Thanks in advance for your help

[cobito]

@mangazo The conditions for the adapter to work are that it has exactly the same voltage (volts) and can provide at least the same current (amperior) or more. In the list you provide, the only one that will work is the one that is 3V and 1200mA because the voltage matches what your device needs and the current it can supply is higher.

The 5 and 6V sources will burn your device. Also, keep in mind the output polarities. There is usually a diagram like this.

In this case, the central part of the connector is positive and the outer part is negative. It is crucial that this matches the original source or the label of the characteristics of the device in question.

[Mangazo]

Okay, thanks for the help.

[lorTnuyosoN]

¡Esta publicación está eliminada!

[whoololon]

@mangazo I don't recommend supplying more voltage than the manufacturer specifies.
Obviously, not knowing what device we're talking about, overvoltage can cause irreparable damage, malfunction, or nothing at all... but I repeat, it's not recommended.
As for amperage, the more the better.