• output connection: 2.5 mm x 5.5 mm Plug
• input connection: 2.1 mm x 5.5 mm socket
• Type of Plug: straight

2.5 mm x 5.5 mm plug to 2.1 mm x 5.5 mm socket

A hollow plug is a two-pole connector that is usually used to supply power to small devices with an external power supply unit or to charge batteries in devices.

Due to the open design, hollow plugs are only approved for operation with safe low voltage. Compared to jack plugs, they have the advantage that no short circuit can occur due to the internal contact when used as intended. Typical applications include portable audio devices, such as MP3 or CD players, as well as chargers, e.g. for camcorder batteries or electrically powered toys.

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