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DC Power Jack Connector Kit — 5.5×2.1mm Male/Female Panel Mount & PCB Mount
A comprehensive 5.5×2.1mm DC power jack connector kit including male and female connectors in both panel-mount and PCB-mount configurations. The 5.5×2.1mm barrel connector is the universal standard for Arduino, Raspberry Pi, and most electronics power supplies — the same connector used on the Arduino Uno power jack. This kit covers every common mounting style for complete power connector flexibility in custom electronics projects.
Kit Contents
- Panel-mount female socket: Threaded nut mount for enclosure panels
- PCB-mount female socket: Through-hole and right-angle variants
- Male plug: For cable termination
- Waterproof cap: Dust and moisture protection
Key Specifications
- Size: 5.5mm OD / 2.1mm ID (center pin)
- Current rating: 5A | Voltage: 24V DC max
- Polarity: Center positive (standard)
- Mounting: Panel mount and PCB mount
- Compliance: RoHS compliant
5.5×2.1mm vs 5.5×2.5mm
- 5.5×2.1mm (this kit): Most common — Arduino, Raspberry Pi, and most electronics power supplies
- 5.5×2.5mm: Slightly larger center pin — some laptop power supplies and industrial equipment
Typical Applications
- Arduino and Raspberry Pi power input connector
- DIY bench power supply DC output jack
- Electronics enclosure panel-mount power input
- Custom PCB DC power jack
- 12V/24V power supply connector for electronics projects

