Footprint

SOT-223-3

Medium-power SMD package — popular for LDO regulators like AMS1117 and AP2112

⚡ Install this footprint

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

Search the Adom Wiki for the footprint "SOT-223-3" (slug: sot-223-3) at https://wiki-ufypy5dpx93o.adom.cloud/wiki/footprints/sot-223-3. 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 / Voltage Regulator
Library Package_TO_SOT_SMD
Footprint SOT-223-3_TabPin2
Pads 4
Pitch 2.30mm
Body Size 6.5 x 3.5mm
Mounting Surface Mount
Footprint
3D Model

AI Skill Technical Reference

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SOT-223-3

Package: SOT-223-3_TabPin2 Library: Package_TO_SOT_SMD Category: Power / Voltage Regulator Pads: 4 Pitch: 2.30mm Body Size: 6.5 x 3.5mm Mounting: Surface Mount

Description

The SOT-223 is a medium-power surface-mount package that bridges the gap between tiny SOT-23 and bulky TO-220 packages. With a 6.5 x 3.5mm body and a large tab for heat dissipation, it handles up to 1-2W without a heatsink. The three signal pins plus a large tab (connected to pin 2) provide excellent thermal performance through the PCB copper. This is the standard package for the AMS1117 and AP1117 LDO regulator families, NCP1117, and many other voltage regulators up to 1A output current.

Usage Notes

  • Designed for reflow soldering (paste stencil recommended)
  • Pad size optimized for 2.30mm pitch components
  • Follow IPC-7351 land pattern guidelines

KiCad Library Reference

This footprint is from the official KiCad Package_TO_SOT_SMD library. Full identifier: Package_TO_SOT_SMD:SOT-223-3_TabPin2

To use in your project:

  1. Open the Footprint Library Manager in KiCad
  2. Search for SOT-223-3_TabPin2
  3. Assign to your schematic symbol in the Symbol Properties dialog

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0 revisions · KiCad Library: Package_TO_SOT_SMD:SOT-223-3_TabPin2 · Updated 2026-03-02 17:31:36