Footprint

TO-220-3 Vertical

Standard 3-pin through-hole power package — voltage regulators and power transistors

⚡ Install this footprint

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

Search the Adom Wiki for the footprint "TO-220-3 Vertical" (slug: to-220-3-vertical) at https://wiki-ufypy5dpx93o.adom.cloud/wiki/footprints/to-220-3-vertical. 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 Power Package
Library Package_TO_SOT_THT
Footprint TO-220-3_Vertical
Pads 3
Pitch 2.54mm
Body Size 10.0 x 4.5mm
Mounting Through-Hole
Footprint
3D Model

AI Skill Technical Reference

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TO-220-3 Vertical

Package: TO-220-3_Vertical Library: Package_TO_SOT_THT Category: Power Package Pads: 3 Pitch: 2.54mm Body Size: 10.0 x 4.5mm Mounting: Through-Hole

Description

The TO-220-3 is the most iconic power semiconductor package in electronics. With three leads at 2.54mm pitch and a large metal tab for heatsink mounting, it handles up to 150W with proper cooling. This vertical mount variant is the standard footprint for the 7805/7812 voltage regulator family, LM317 adjustable regulator, IRF520/IRF540 power MOSFETs, and TIP31/TIP41 power transistors. The through-hole mounting provides excellent mechanical stability and thermal connection to heatsinks or copper planes.

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 Package_TO_SOT_THT library. Full identifier: Package_TO_SOT_THT:TO-220-3_Vertical

To use in your project:

  1. Open the Footprint Library Manager in KiCad
  2. Search for TO-220-3_Vertical
  3. Assign to your schematic symbol in the Symbol Properties dialog

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0 revisions · KiCad Library: Package_TO_SOT_THT:TO-220-3_Vertical · Updated 2026-03-02 17:31:36