5V DC Power Cords | McMaster-Carr

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26 Products

AC to DC Adapter Cords

Negative

NEMA 1-15 Plug

Positive

Plug these adapter cords into a standard outlet and they change AC voltage to DC voltage. These cords use switching regulation, so they produce the stated voltage even when your outlet’s power or the power drawn by your device fluctuates. It also means they won’t get too hot. They have an LPS low-voltage output and Class II shock protection, so if something fails inside these cords, they’ll limit the risk of electrical shocks. These cords meet U.S. and Canadian safety standards as well as U.S. DOE (Department of Energy) Level VI standards for energy efficiency.

When choosing an adapter, match the output voltage and polarity of your device. Look for the polarity illustration on your device or the adapter you're replacing. The current you choose should, at a minimum, match your device. You can choose a higher current, but it will not improve performance.

Barrel Output Connection					Straight-Blade Input Connection
Voltage	Current, A	End ID, mm	End OD, mm	End Shape	Voltage	Current, A	NEMA Style	End Shape	Lg., ft.	Protections Provided	Specifications Met		Each
Negative Polarity
5V DC	1.5	2.1	5.5	Straight	120V AC 240V AC	0.4	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	00000000	00000
5V DC	1.5	2.5	5.5	Straight	120V AC 240V AC	0.4	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	0000
5V DC	2	2.1	5.5	Straight	120V AC 240V AC	0.4	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	00000
5V DC	2	2.5	5.5	Straight	120V AC 240V AC	0.4	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	00000
5V DC	3	2.1	5.5	Straight	120V AC 240V AC	0.5	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	00000
5V DC	3	2.5	5.5	Straight	120V AC 240V AC	0.5	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	00000
5V DC	4	2.1	5.5	Straight	120V AC 240V AC	0.8	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	00000
5V DC	4	2.5	5.5	Straight	120V AC 240V AC	0.8	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	00000
Positive Polarity
5V DC	1.5	2.1	5.5	Straight	120V AC 240V AC	0.4	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	00000000	0000
5V DC	1.5	2.5	5.5	Straight	120V AC 240V AC	0.4	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	0000
5V DC	2	2.1	5.5	Straight	120V AC 240V AC	0.4	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	00000
5V DC	2	2.5	5.5	Straight	120V AC 240V AC	0.4	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	00000
5V DC	3	2.1	5.5	Straight	120V AC 240V AC	0.5	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	00000
5V DC	3	2.5	5.5	Straight	120V AC 240V AC	0.5	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	00000
5V DC	4	2.1	5.5	Straight	120V AC 240V AC	0.8	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	00000
5V DC	4	2.5	5.5	Straight	120V AC 240V AC	0.8	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	00000

Detachable-Cord AC to DC Adapters

IEC C8 Input and Barrel Output

IEC C14 Input and Barrel Output

Barrel Output

IEC C8 Input

Positive

IEC C14 Input

Couple these adapters with a cord that matches your outlet and length requirements to run DC-powered electronics. Instead of plugging directly into an outlet, the body of these adapters sits on the floor or other surface, so it remains out of the way and won’t block multiple outlets. These adapters use switching regulation—they produce the stated voltage even when your outlet’s power or the power drawn by your device fluctuates. Most have an LPS low-voltage output, so if something fails inside these adapters, they’ll limit the risk of electrical shocks. They meet U.S., Canadian, and European safety standards. Many also meet U.S. and European standards for energy efficiency.

Adapters with an IEC C8 input require power cords with a C7 socket. With Class II shock protection, they have two levels of insulation that prevent electrical shocks.

Adapters with an IEC C14 input require power cords with a C13 socket. They have Class I shock protection and prevent electrical shocks with a combination of insulation and a protective ground.

Barrel/Pin Output Connection						Straight-Blade Input Connection
Voltage	Current, A	Polarity	End ID, mm	End OD, mm	End Shape	Voltage	Current, A	End Shape	Lg., ft.	Shock Protection Class	Protections Provided	Color		Each
IEC C8 Input × Barrel Output
5V DC	3	Positive	2.1	5.5	Straight	120V AC, 240V AC	0.48	Straight	5	II	Overcurrent, Overvoltage, Short Circuit	Black	00000000	000000
5V DC	5	Positive	2.1	5.5	Straight	120V AC, 240V AC	1	Straight	5	II	Overcurrent, Overvoltage, Short Circuit	Black	00000000	00000
IEC C14 Input × Barrel Output
5V DC	3	Positive	2.1	5.5	Straight	120V AC, 240V AC	0.48	Straight	5	I	Overcurrent, Overvoltage, Short Circuit	Black	00000000	00000
5V DC	5	Positive	2.1	5.5	Straight	120V AC, 240V AC	1	Straight	5	I	Overcurrent, Overvoltage, Short Circuit	Black	00000000	00000

International AC to DC Adapter Cords

Adapter

AS 3112 Plug (Australia and New Zealand)

BS 1363 Plug (United Kingdom )

CEE 7/16 Plug (European Union)

NEMA 1-15 Plug (North America)

Negative

Positive

Swap the plug to match the outlet of the region you’re in instead of using separate cords for each country. These adapter cords convert AC voltage to power DC electronics. Designed with switching regulation, they maintain consistent voltage during power fluctuations and don’t get too hot. They meet U.S., Canadian, European, Australian, New Zealand, and Chinese safety standards.

A limited power source (LPS) low-voltage output decreases the risk of electric shock if something fails inside these cords. Class II shock protection means they have two levels of insulation. These cords meet U.S. DOE (Department of Energy) Level VI standards for energy efficiency when they're in-use, as well as when they're plugged in but not in use.

Choose an adapter cord with an output voltage that matches the voltage of your device. The polarity of the adapter cord and your device must also be the same. Look for the polarity illustration on your device or the adapter cord you’re replacing and pick a cord to match.

Barrel Output Connection					Straight-Blade Input Connection
Voltage	Current, A	End ID, mm	End OD, mm	End Shape	Voltage	Current, A	End Shape	Lg., ft.	Protections Provided	Color		Each
Negative Polarity
AS 3112, BS 1363, CEE 7/16, × NEMA 1-15 Plugs
5V DC	4	2.1	5.5	Straight	120V AC, 240V AC	0.8	90° Elbow	5	Overvoltage, Short Circuit	Black	0000000	000000
5V DC	4	2.5	5.5	Straight	120V AC, 240V AC	0.8	90° Elbow	5	Overvoltage, Short Circuit	Black	0000000	00000
Positive Polarity
AS 3112, BS 1363, CEE 7/16, × NEMA 1-15 Plugs
5V DC	4	2.1	5.5	Straight	120V AC, 240V AC	0.8	90° Elbow	5	Overvoltage, Short Circuit	Black	0000000	00000
5V DC	4	2.5	5.5	Straight	120V AC, 240V AC	0.8	90° Elbow	5	Overvoltage, Short Circuit	Black	0000000	00000

Nano M8/USB Adapter Cords

4-Pole M8 Plug × USB A Male

4 Pole

These cords have a Nano M8 connector (also known as a pico connector) on one end and an USB Type-A connector on the other. Use them to connect devices with these connections. The USB connection is backward compatible, so it will work with cords that meet the same or a lower USB standard.

For technical drawings and 3-D models, click on a part number.

Plug										Cord
Housing Thread Size	Number of Poles	Face Dia.	Lg., ft.	USB Standard	Transmission Speed, Mbps	Shielding	Current, A	Voltage	Wire Gauge	OD	Insulation Material	Temperature Range, °F	Color		Each
Plug (External Thread) × USB A Male
M8	4	0.2"	16	2.0	12	Unshielded	0.5	5V DC	24	0.2"	PVC Plastic	-10° to 150°	Black	0000000	000000

Barrel-Style DC Power Cords

Carry DC power in or out of electronic devices with these cords. All have industry standard barrel-style connections, letting you power electronics from power supplies. Link together multiple cords to carry electricity over long distances.

Plug × USB cords let you power devices from your computer or from other devices with USB ports.

For technical drawings and 3-D models, click on a part number.

Plug × USB

			Plug						Cord
Wire Gauge	Current, A	Voltage	End ID, mm	End OD, mm	End Lg., mm	USB Connection Type	Color	Lg., ft.	OD	Insulation Material	Temp. Range, °F		Each
22	1	5V DC	2.1	5.5	12	A	Black	6	0.15"	PVC Plastic	15° to 175°	0000000	00000