Unique-Bargains 10Pcs DC Power Jack Socket 5.5mmx2.1mm

10-piece DC jack kit

This pack contains ten panel-mount coaxial sockets with a 5.5 mm outer and 2.1 mm inner diameter. Each unit has three pins and an 8 mm thread for secure chassis mounting. The silver-tone bodies suit media players, audio-video gear, notebooks and car audio installations. Builders needing a bulk supply of standard barrel connectors will find the quantity convenient.

Sustained connection reliability

The through-hole PCB pins provide a mechanical bond that resists vibration better than surface-mount alternatives. Silver-tone plating on the contacts maintains low resistance over repeated insertions. The 21 mm by 11 mm body allows adequate heat dissipation during continuous power delivery. Users who require waterproof sealing or locking retention will need a different connector style.

5.5 mm by 2.1 mm interface limits

This barrel size carries up to 5 A in typical applications, so higher-current designs must choose a larger connector. The 8 mm mounting thread fits panels up to roughly 3 mm thick without extra hardware. Polarity follows the common centre-positive convention, but the three-pin layout also permits switched or detection circuits. Designers needing reverse-polarity protection or data lines should select a different interface.