Communities

Writing
Writing
Codidact Meta
Codidact Meta
The Great Outdoors
The Great Outdoors
Photography & Video
Photography & Video
Scientific Speculation
Scientific Speculation
Cooking
Cooking
Electrical Engineering
Electrical Engineering
Judaism
Judaism
Languages & Linguistics
Languages & Linguistics
Software Development
Software Development
Mathematics
Mathematics
Christianity
Christianity
Code Golf
Code Golf
Music
Music
Physics
Physics
Linux Systems
Linux Systems
Power Users
Power Users
Tabletop RPGs
Tabletop RPGs
Community Proposals
Community Proposals
tag:snake search within a tag
answers:0 unanswered questions
user:xxxx search by author id
score:0.5 posts with 0.5+ score
"snake oil" exact phrase
votes:4 posts with 4+ votes
created:<1w created < 1 week ago
post_type:xxxx type of post
Search help
Notifications
Mark all as read See all your notifications »
Q&A

What is the popular 12 V DC jack connector?

+1
−3

I'm designing a PCB for a project. 12 volt input power supply is provided externally, so the user will buy a power adapter, so putting a popular DC jack on the PCB is the best choice.

History
Why does this post require attention from curators or moderators?
You might want to add some details to your flag.
Why should this post be closed?

1 comment thread

General comments (1 comment)

2 answers

You are accessing this answer with a direct link, so it's being shown above all other answers regardless of its score. You can return to the normal view.

+4
−0

One common 12 V DC power connector is the "2.1 mm plug": 2.1mm inner diameter, 5.5mm outer diameter. Jameco says it is one of the most common DC power connector.

Several Sparkfun power connectors are 2.1 mm plug compatible.

Several Adafruit power connectors are 2.1 mm plug compatible.

Many devices, including some GoTo telescope mounts, many CCTV cameras, the power socket on Arduino boards, etc. are 2.1 mm plug compatible. (Like most devices powered with barrel connectors, they require Tip Positive, and a range of voltages that includes 12 VDC).

History
Why does this post require attention from curators or moderators?
You might want to add some details to your flag.

1 comment thread

pros: - many replacement power supplies - makes ground connection first cons: - doesn't s... (1 comment)
+5
−0

There is no "standard" 12 V DC jack. Asking end users to buy a separate power supply is asking for trouble. Don't expect users to know about center-positive versus center-negative, and inner and outer barrel diameter.

If this is an OEM product, then you can provide binding posts or even just labeled solder pads for +12 V and the return. Otherwise, your product should come with whatever power supply is needed.

History
Why does this post require attention from curators or moderators?
You might want to add some details to your flag.

0 comment threads

Sign up to answer this question »