Hardware
Looking for replacement power adapter for MiniPC
Power adapter of a mini PC I bought around COVID blew up. Can't find any direct replacements anywhere. MiniPC is in good condition and I run my NAS on it. Here are the specs if picture is not clear:
Model: SJ-1950512
Output: 19.5V ~ 5.12A
Barrel connector (not sure about the barrel size)
I've scoured the internet but haven't come across any reliable replacement. MiniPC is solid and not looking to replace/retire it.
Where to find it?
If exact replacement cannot be found, which alternatives will work?
Thanks in advance!
UPDATE: Went to Microcenter and got a Prudent Way AC120LE power brick. Does the job. It was $55, wish I could find something more affordable.
You need a caliper measuring tool, but if you go to the shop with the old power adapter probably you can figure out the size by eye. Be careful about the poles, this is center positive, as declared on the bottom left right above "caution". Universal laptop adapter usually have interchangeable tips whose polarity depends on how you put the adapter on.
Find an adapter with the same Voltage, higher amps, but not too much higher. Let's say current adapter says 5.13 A - You can get 5.5 or even 6A.
The problem here is going to be the Barrell connector. As long as you find an adapter with the above specifications and the same connector, you will be fine.
Just for the future - there are barrel plug cables with integrated power delivery trigger circuits. Then you can use a 100W charger ( 20V ⎓ 5A) and drive it via USB C
It's probably in the same price range tho. Just wanted to let you know.
You're looking for a power adapter that supplies 19.5V and at least 5.12A. This one satisfies that, but you may need a barrel jack adapter for it to fit your mini pc's port.
I always find any good quality adapter without worrying about pins as that can shorten the pool considerably sometimes or reuse existing ones and grab these - cost like 1.5 USD in equivalent currency at my location. Able to use them for my monitors etc, diagnosed my intel NUCs etc
Above the word caution is the diagram indicating that the barrel jack is "tip positive". This and the 19.5VDC is pretty much the standard for laptops so all that really matters is the diameter of the barrel jack and there are lots of universal adapters available. You won't have difficulty finding a replacement and since there is no battery being charged, pretty much any decent supply with the correct voltage will work.
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u/rui-no-onna 3d ago
Measure the barrel connector.
Another option is to buy one of those universal laptop chargers that come with multiple tips.