9VDC 1A Arduino Compatible Power Supply Adapter 110V AC 5.5 x 2.1mm Tip Positive Part#LJH -186
$7.49
Price: $7.49
(as of Jan 11, 2025 00:39:10 UTC – Details)
High quality switching ‘wall wart’ AC to DC 9V 1000mA wall power supply manufactured specifically for Electronics. The output is Center/Tip positive 5.5mmx2.1mm connector. These are switch mode power supplies which mean the output is regulated to 9V and the capable output current is much higher (1000mA!). For use with Arduino Uno, Mega and MB102 Power supply boards. These will power most projects that don’t require more than 1000mA of current. Dimensions: 2.91 in x 1.57 in x 1.06 in (7.40 cm x 4.00 cm x 2.70 cm) Weight: 2.54 oz (72 g),
2-flat-pin plug
110V input voltage / 9VDC 1A output voltage
For use with Arduino Uno, Mega and MB102 Power supply boards
Connector size: 5.5 x 2.1mm with Center Tip positive, sleeve is negative
These adapters do not work for guitar pedals or label makers which require negative tip power adapters
Customers say
Customers find the charging adapter functional and reasonably priced. It works well with their Brother label maker and has a red light. However, some have reported issues with the power supply not working properly or stopping after a week of use. There are mixed opinions on durability, plug size, and power quality.
AI-generated from the text of customer reviews
8 reviews for 9VDC 1A Arduino Compatible Power Supply Adapter 110V AC 5.5 x 2.1mm Tip Positive Part#LJH -186
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$7.49
mr v –
Great product and great price
This is a great product and great price.it also has a little red light that tells you it is working.it powers up my stop barking devise.it has been doing a great jod for over 3 years.
RootSlash –
It works.
Does what it says it will do. No issues yet. Will update the review if/when it ever fails.
Diane Krafton –
perfect match
arrived quickly. just the right size and voltage. needed it to power chicken coop door in case solar didnt work
Nick B. –
Worked for what I needed it for.
Happy to have received the product in a timely manner. The computer power supply adapter worked as needed. It was the lowest price I could find and was an easy replacement cord needed for a piece of exercise equipment I picked up.
theodore LINDLEY –
Easily hacked
Ordered this power supply for an inhouse project, was going to use it as intended, however upon closer inspection, it was discovered it could be easily opened. The circuits were very well built and allowed for easy access to the primary solder joints which allowed us to connect to the projects main power inputs thus eliminating a second outlet. SO for someone whos looking to embed an Arduino or Pi into a larger project, this wall wort can be easily incorporated into a larger power management lay out
Amazon Customer –
RF noise
Mine had horrendous RF noise, if youâre buying this for an AM radio you might shouldnât. The cord is only about 2 foot long too.
Evan Rodgers –
Works On NES
This is a DC 9V 1A Power Adapter. The NES *should* be using an AC adapter, but it works great and adds no noise to the audio/video out. Only thing bad about it is the big LED on it. Just used some duct tape to cover it and it’s great now.
Jeff –
Great replacement for an NES power supply!
As someone who repairs retro video game systems, sometimes it’s hard to find OEM replacement NES AC adapters so I’m always on the lookout for something to take their place. It makes it easy when I can easily and affordably find an adapter with matching specs for under $10. Even better when the form factor is small enough to not take the space of 2-3 other nearby outlets, unlike the original NES adapter. This one does the job perfectly. The indicator LED is a nice addition as well. I know they make cheapy aftermarker NES/SNES/”Genesis” adapters but they feel very cheaply made, are as large as the OEM, and don’t have a cool indicator light like this one. This will likely turn into my go-to replacement for NES adapters from here on out.