Product Description
The 2.1 x 5.5mm DC Power Jack Socket is a heavy-duty female connector designed for mounting onto enclosures, project boxes, and control panels. Featuring a threaded metal body and a hexagonal nut, it provides a secure, vibration-resistant mechanical connection for external DC power adapters. This specific size (2.1mm internal pin) is the global standard for most electronics, including Arduino boards, CCTV cameras, and LED lighting systems. The 3-pin internal configuration includes a specialized "shunt" or "switched" pin, allowing the circuit to automatically toggle between internal battery power and external adapter power when a plug is inserted.
Key Features
Standard 2.1mm Center Pin: Guaranteed compatibility with the vast majority of 12V and 24V "wall-wart" power adapters.
Rugged Panel Mounting: The included nut and washer allow for a professional, flush-mount finish on plastic or metal panels up to 5mm thick.
Integrated Battery Switch: Features a normally-closed (NC) pin that disconnects internal batteries when an external power plug is inserted, preventing battery damage.
High-Temperature Insulation: Constructed with heat-resistant polymers to prevent the socket from melting or warping during high-power soldering or heavy current draw.
Corrosion-Resistant Terminals: Tinned solder tabs ensure excellent electrical conductivity and long-term oxidation resistance in various environmental conditions.
