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I've got a monitor which takes 19V 2A (AOC I2381FH) that I've lost the power supply to. I've got a power supply which will fit which says it produces 12V 2.5A which sounds like it might work.

Would I likely damage my monitor by using this? Trying to find a replacement supply seems difficult for it.

JRE
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Joe Simpson
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    It most likely won't work. Was the original power supply *external* to the monitor ? – AJN Jul 07 '20 at 10:40
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    Does this answer your question? [Choosing power supply, how to get the voltage and current ratings?](https://electronics.stackexchange.com/questions/34745/choosing-power-supply-how-to-get-the-voltage-and-current-ratings) – JRE Jul 07 '20 at 12:12

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Check the info label on your monitor to view the acceptable input voltages.

My guess is that it won't work as 12V won't be enough.

Swedgin
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You need a 19V, 2A power supply. The required power is 38W, the 12V 2.5A can only supply 30W.

Lior Bilia
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  • Thanks, is there any way of knowing what kind of connector will fit in it? – Joe Simpson Jul 07 '20 at 10:42
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    If you have to buy someting anyway, why buy random power supplies if you are unable to determine if they are suitable or not. Why not buy a replacement power supply from the monitor manufacturer, so you know that it's compatible. – Justme Jul 07 '20 at 10:46
  • They don't seem to sell them unfortunately, at least not in the UK – Joe Simpson Jul 07 '20 at 10:52
  • 19V is (or used to be) a standard laptop charging voltage - I have several old chargers with that output. You should be able to find a universal charger on Fleabay or similar. It is also likely that your monitor has a standard tubular connector, but you need to check. – user131342 Jul 07 '20 at 11:39
  • I bought one but it doesn't fit sadly. I have no idea how to really check if it fits properly or not :/ sadly it's not like usb where it's relatively standardised haha – Joe Simpson Jul 07 '20 at 11:43
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    @JoeSimpson: Barrel connectors are somewhat standardized. You need to measure the diameter of the center pin and the diameter of the hole for the barrel. Use a caliper. – JRE Jul 07 '20 at 13:11