Footprint

Barrel Jack (Horizontal)

DC power barrel jack — 5.5/2.1mm, the standard DC power input connector

⚡ Install this footprint

Paste this into Claude Code (VS Code panel, Adom editor, or terminal) to install:

Search the Adom Wiki for the footprint "Barrel Jack (Horizontal)" (slug: barrel-jack) at https://wiki-ufypy5dpx93o.adom.cloud/wiki/footprints/barrel-jack. Download the .kicad_mod file and any .glb 3D model from the wiki page's static assets. Add the footprint to my current KiCad project's footprints/ directory and register in fp-lib-table.
Category Connector
Library Connector_BarrelJack
Footprint BarrelJack_Horizontal
Pads 3
Pitch N/A
Body Size 13.8 x 8.9mm
Mounting Through-Hole
Footprint
3D Model

AI Skill Technical Reference

Edit AI Skill

Barrel Jack (Horizontal)

Package: BarrelJack_Horizontal Library: Connector_BarrelJack Category: Connector Pads: 3 Pitch: N/A Body Size: 13.8 x 8.9mm Mounting: Through-Hole

Description

The barrel jack is the most common DC power input connector in consumer and industrial electronics. This horizontal-mount variant accepts standard 5.5mm outer / 2.1mm inner barrel plugs from wall adapters. Found on Arduino boards, routers, LED strips, and countless embedded systems. Three pins provide center-positive, ground, and switch-detect connections. The through-hole mounting provides excellent mechanical strength for frequent plug/unplug cycles. Rated for 5A at 12-24V in most variants.

Usage Notes

  • Standard through-hole mounting with wave or hand soldering
  • Drill sizes follow IPC-2222 specifications
  • Compatible with standard 2.54mm breadboard pitch

KiCad Library Reference

This footprint is from the official KiCad Connector_BarrelJack library. Full identifier: Connector_BarrelJack:BarrelJack_Horizontal

To use in your project:

  1. Open the Footprint Library Manager in KiCad
  2. Search for BarrelJack_Horizontal
  3. Assign to your schematic symbol in the Symbol Properties dialog

Sub-Skills
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Sub-skills are community-contributed AI skill extensions for this component. They teach AI assistants about specific tools, configurators, or workflows.

Examples:

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  • A community-written design guide for an amplifier circuit
  • An automated test/validation script for a sensor module

How to add one: Click Add Sub-Skill, provide the URL to your skill and a brief description. Submissions are reviewed by the Adom team before going live.

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0 revisions · KiCad Library: Connector_BarrelJack:BarrelJack_Horizontal · Updated 2026-03-02 17:31:36