DC power socket terminal screws PC female 5.5/2.1mm AD-DC-F — panel-mounted PCB connector

Panel-mounted DC power socket (female) designed for PCB integration and front-panel installation. This connector accepts standard 5.5 mm outer / 2.1 mm inner barrel plugs and features screw terminal contacts that allow direct wire attachment without soldering. The compact housing and through-hole PCB pins make it suitable for power supplies, consumer electronics, instrumentation and DIY prototyping where a removable barrel connector and reliable wiring are needed.

Advantages

The screw terminal contacts provide a secure, tool-accessible method for connecting power wires while allowing easy replacement of the barrel plug. Panel-mounted construction ensures stable mechanical support when mated with a plug, reducing stress on PCB solder joints. The 5.5/2.1 mm barrel size is widely compatible with many adapter supplies and peripherals. The connector’s compact footprint simplifies integration into small enclosures and prototypes.

Suitable for

• Power input for small desktop power supplies and adapters
• Consumer electronics enclosures and control panels
• DIY electronics, hobby projects and prototypes
• Repair and replacement of existing barrel-jack connections

Key specifications

• Barrel plug compatibility: 5.5 mm outer diameter / 2.1 mm inner diameter
• Mounting type: panel-mounted with PCB through-hole pins
• Contact termination: screw terminal contacts for stranded or solid wire
• Electrical rating: designed for low-voltage DC power applications (check system requirements for current rating)
• Construction: compact plastic housing with metal contacts for mechanical and electrical reliability

How to use

Prepare the panel cutout and PCB footprint according to the connector outline. Insert the connector into the panel and PCB so that the housing seats flush and the through-hole pins align with the board. Strip the insulation from the power wires, insert them into the screw terminals and tighten the terminal screws evenly to ensure a solid electrical connection. When using the barrel plug, align the plug with the socket and push until fully seated; ensure the mating polarity and voltage match the powered device.

Usage recommendations

Verify the current and voltage requirements of your system before connecting power. Use appropriately sized wire for the expected current, and secure wires to prevent strain on the screw terminals. For permanent installations, confirm the panel mounting is fixed to avoid movement that could loosen connections. Periodically inspect the terminal screws and retighten if necessary to maintain reliable contact.