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DC Barrel Jack Screw Terminal Adapter – 5.5×2.1mm or 5.5×2.5mm, Male or Female – 5.5×2.5mm / Female socket

DC Barrel Jack Screw Terminal Adapter – 5.5×2.1mm or 5.5×2.5mm, Male or Female – 5.5×2.5mm / Female socket to Pinterest (opens in a new window)
DC Barrel Jack Screw Terminal Adapter - 5.5x2.1mm or 5.5x2.5mm, Male or Female - 5.5x2.5mm / Female socket

Brand NZN Electronics CLICK IT SKU CLICK-IT-800989 Category Components

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  • Brand NZN Electronics

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Overview

A DC barrel connector with a 2-way screw terminal on the back, so you can put a plug or socket on a power lead without soldering. Choose the female socket to accept a plug pack’s barrel plug, or the male plug to feed a device that has a DC socket. Both come in 5.5 x 2.1mm, the usual size on 12V plug packs, and 5.5 x 2.5mm. Each terminal is moulded with a + or – beside its screw.

Specifications

Barrel sizes5.5 x 2.1mm or 5.5 x 2.5mm
VersionsFemale socket or male plug
Wire connection2-way screw terminal, cross-head screws
Polarity+ and – moulded on the body, + to the centre pin
CurrentWe suggest up to 2A
SizeMale ~37mm, female ~30mm long; body ~14mm wide

What’s in the box

1×
DC barrel screw terminal adapter

Female socket or male plug in the size you select. Order one of each type for a joint you can unplug.

Great for

Powering a 12V LED strip from a plug pack
Replacing a cut or damaged plug on a CCTV camera lead
Feeding an Arduino Uno’s barrel jack from a bench supply
Making a plug-in joint in a low-voltage DC cable

Wiring & getting started

  1. Check the barrel size

    Look for 5.5 x 2.1mm or 5.5 x 2.5mm on your power supply or device label. The two sizes look almost the same, but a 2.5mm plug sits loose on a 2.1mm socket pin and a 2.1mm plug will not fit a 2.5mm socket.

  2. Strip and fit the wires

    Strip about 5mm from each wire, twist the strands, and push them into the square openings on the end of the green block. Tighten each screw firmly and tug the wire to check it holds. For a connector with the lead already fitted, see our 5.5×2.1mm DC power pigtail.

  3. Match the polarity

    Put the positive wire under the screw marked + and the negative under the screw marked -. The + terminal goes to the centre pin, which suits centre-positive supplies, the usual type on 12V plug packs.

  4. Check before you power up

    Measure the voltage and polarity at the far end with a multimeter before connecting your device, and keep the load to 2A or less.

Specification

Specification for DC Barrel Jack Screw Terminal Adapter - 5.5x2.1mm or 5.5x2.5mm, Male or Female - 5.5x2.5mm / Female socket
CLICK IT SKU CLICK-IT-800989
Brand NZN Electronics

Features

A DC barrel connector with a 2-way screw terminal on the back, so you can put a plug or socket on a power lead without soldering. Choose the female socket to accept a plug pack's barrel plug, or the male plug to feed a device…

  • Brand NZN Electronics

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