The Circular DC Jack 5.5x2.1mm Panel Mount is a high-quality barrel connector designed for reliable DC power input in electronic enclosures, cases, and devices. Featuring a standard 5.5mm outer diameter and a 2.1mm center pin, this jack is compatible with widely used 5.5x2.1mm DC plugs from power adapters. It supports a maximum current of 5A and a voltage rating of up to 24V, making it suitable for powering equipment like LED lighting, small appliances, and DIY projects such as custom audio setups or Raspberry Pi enclosures. The circular design typically includes a threaded body (e.g., 8mm or 10mm diameter thread) and a locking nut for secure mounting on panels up to 3-5mm thick, with solder or screw terminals for easy wiring (positive center pin, negative sleeve). With a contact resistance of ≤30mΩ and insulation resistance of ≥100MΩ at 500VDC, it ensures efficient power transfer. This RoHS-compliant jack operates within a temperature range of -30°C to 70°C, offering durability and versatility for hobbyists and professionals alike.