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Fifty black cylindrical DC male plugs 5.5mm x 2.1mm

Unique-Bargains

Unique-Bargains 50 Pcs DC Male Plug 5.5mm x 2.1mm

SKU CH-NMR0-4KNM6

Pack of 50 DC male plugs with 5.5mm outer and 2.1mm inner diameters for standard power supplies

  • 50-piece pack covers multiple repairs or builds
  • 5 mm outer diameter matches common barrel jack sizes
  • 1 mm inner diameter fits standard centre-pin connectors
  • 9 mm contact length ensures secure electrical engagement
  • 90 g total weight keeps cable assemblies light

50-Pack DC Male Plugs 5.5 mm x 2.1 mm

This pack contains fifty straight-blade DC male plugs with a 5.5 mm outside diameter and 2.1 mm inside diameter. Each connector has a 9 mm contact length. They suit repair work, prototyping or bulk cable assembly for standard DC-powered devices.

Solder-Type Inline Connector Limits

These plugs require soldering or crimping to bare wire ends; no screw terminals are present. The 5.5 mm by 2.1 mm barrel size fits only matching female jacks. Polarity follows the centre-positive convention common on many power supplies, so verify the device jack before wiring.

Jack Compatibility Check

Confirm that the target equipment uses a 5.5 mm outer and 2.1 mm inner diameter jack. Measure the existing port if the specification is unclear. Ensure the 9 mm contact depth matches the socket depth to avoid a loose or non-conductive fit.

How it compares

Measured against everything we stock in AC Plugs & USB Wall Chargers, at today’s prices. Recalculated every night.

Price $8.99
Cheaper than about 76% of the 547 comparable items (median $17.99).

Specifications

Product
Brand nameUnique Bargains

Questions about this item

Should I choose the 5.5 mm outside diameter version or the 2.1 mm inside diameter version?

This pack contains a single specification: 5.5 mm outside diameter and 2.1 mm inside diameter on every plug.

What does the 9 mm contact length mean once the plug is inserted into my device?

The 9 mm contact length determines how deep the centre pin and barrel engage inside the jack for a solid electrical connection.

Is the 5.5 mm x 2.1 mm size a standard DC barrel interface and what current does it cap in practice?

Yes, 5.5 mm x 2.1 mm is the common barrel standard; the plug itself carries no current rating, so the limit comes from the power supply and cable you attach.

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