Adafruit
USB-C PD to 5.5mm/2.1mm DC Barrel Jack Adapter
· MPN: ADA6031
This compact adapter lets you power gear with a 5.5mm / 2.1mm DC barrel socket from a USB Type C connection. It is handy for projects, development boards, an...
This compact adapter lets you power gear with a 5.5mm / 2.1mm DC barrel socket from a USB Type C connection. It is handy for projects, development boards, and small devices that use the common centre-positive barrel jack format.
With a suitable USB PD power supply, it provides 9V DC output at up to 3A, or up to whatever the connected power adapter can supply. The reversible USB-C connector also means you can flip the adapter to suit a left-angle or right-angle cable layout.
Please note that your USB PD power supply must explicitly support 9V output. If it does not, this adapter will provide 5V or some other lower voltage. This adapter is centre positive; for centre-negative devices, use a 5.5mm/2.1mm DC barrel polarity reversing cable adapter on the end.
Specifications:
- USB connector: USB Type C 3.1
- DC barrel size: 5.5mm / 2.1mm
- Output voltage: 9V DC
- Output current: up to 3A (or whatever the power adapter can do)
- Polarity: center positive
Jargon buster
Plain-language definitions for the technical terms used above.
- center positive
- Center positive describes the polarity of a barrel-style DC power plug, where the centre pin is positive and the outer sleeve is negative. Using a power supply with the wrong polarity can stop the board from working or damage it.
- DC
- DC means direct current, where electricity flows in one direction, like from USB ports, batteries, and many plug-pack power supplies. For this fan controller, it matters because it is meant for low-voltage DC fans rather than mains-powered AC fans.
- USB-C
- A modern reversible USB connector used for power and data connections. On this product it matters because it can connect directly to a computer as well as to a microcontroller project.
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Supplier page — adafruit.com
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