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Small black cylindrical DC plug with screw terminals, 5.5 by 2.1 mm

JacobsParts Inc.

JacobsParts Inc. LEDJACK-02 straight blade plug 5.5 x 2.1 mm 12 V

SKU CH-XPGP-3NRTD MPN LEDJACK-02

A 5.5 x 2.1 mm screw-terminal DC barrel plug for 12 V or 24 V LED strips, CCTV and general electronics

  • Voltage (volts)12
  • Fit and compatibilityMale
  • Number of items1
  • Product typeConnector
  • Tool-free screw terminals speed up wiring
  • 5 x 2.1 mm barrel fits most 12 V and 24 V gear
  • Male plug adds a DC jack to any cable
  • Works with LED strips, CCTV cameras and general electronics
  • Single connector supplied, ready to use

Male DC barrel plug for 12 V LED and CCTV use

This 5.5 mm by 2.1 mm male connector adds a standard barrel jack to any wire for 12 V and 24 V DC devices. It suits LED strip lighting, CCTV cameras and general low-voltage electronics. The straight blade design fits common female sockets without adapters. Installation needs only a small screwdriver.

Screw terminals avoid heat from soldering

The screw-on terminals make a secure joint without solder, crimps or tape, so there is no thermal stress on the wire insulation. No active cooling or power draw is introduced by the connector itself. Normal use stays cool and silent because the part is passive.

Supplied as a single plug for custom leads

One plug is included to terminate a custom cable length the installer chooses. No wire, heat-shrink or tools are bundled, so the builder supplies only the screwdriver and the cable. This keeps the kit minimal for panel-mount or in-line repairs.

How it compares

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

Price $3.99
Cheaper than about 93% of the 547 comparable items (median $17.99).

Specifications

Product
Brand nameJacobsParts
Model nameLEDJACK-02
Product typeConnector
Power
Voltage (volts)12
Compatibility
Fit and compatibilityMale
In the box
Number of items1

Questions about this item

How do I install the 5.5 x 2.1 mm plug onto my LED strip wires?

Loosen the two terminal screws, insert the stripped wire ends into the metal clamps, then tighten the screws with a small screwdriver. The step people often miss is fully tightening both screws so the connection stays secure under vibration.

What maintenance or replacement will the screw terminals need over time?

The screw terminals may loosen with thermal cycling or vibration. Periodically check and re-tighten them with a screwdriver. If the metal clamps fatigue or the plastic housing cracks, replace the entire plug.

What limit appears first when the plug runs continuously at 12 V on a 5050 strip?

The screw-terminal contact resistance is the first limit under sustained load. If the screws are not kept tight, the joint heats up and can melt the plastic housing or cause intermittent power to the strip.

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