Wall Power Adapter: 12VDC, 3A, 5.5×2.1mm Barrel Jack, Center-Positive

Details for item #1774

This UL-certified AC-to-DC converter gives you an easy way to power your DC electronics project from a US-style AC electrical socket. It uses a switching regulator to efficiently output up to 3 A at a near-constant regulated 12 VDC, even when no load is applied. The DC power cable is 5 ft (1.5 m) long and terminated with a center-positive, 5.5 × 2.1 mm barrel connector that works with the DC power adapter barrel jack and the DC barrel jack to terminal block adapter. It also works with the barrel jack on many Arduino boards and our Arduino-compatible A-Star 32U4 Prime controllers.

Full selection of power adapters

We have wall power adapters available in a range of voltages and maximum output currents:

Product	Connector	Output voltage	Typical max output current	Wattage	Power brick?	Price
#1469	center-positive 5.5×2.1 barrel jack	5 V	1 A	5 W		$6.95
#1461			3 A	15 W		$11.95
#1470		9 V	1 A	9 W		$7.49
#1465			5 A	45 W		$24.95
#1471		12 V	1 A	12 W		$7.95
#1774			3 A	36 W		$14.95
#1468			5 A	60 W		$27.95
#1773	USB micro-B	5.15 V	2.5 A	12.9 W		$9.95

People often buy this product together with:

DC Barrel Jack to 2-Pin Terminal Block Adapter

A-Star 32U4 Mini SV

Pololu 400-Point Breadboard with Mounting Holes