3D Component

QFN-20

20-pin quad flat no-lead — compact leadless IC package with exposed pad

⚡ Install this 3D model

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

Search the Adom Wiki for the 3D component "QFN-20" (slug: 3d-qfn-20) at https://wiki-ufypy5dpx93o.adom.cloud/wiki/3dcomps/3d-qfn-20. Download the .glb and .step files from the wiki page's static assets into my current project's 3dmodels/ directory.
Category IC Package
Library Package_DFN_QFN
Footprint QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm
3D Model QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm.step
Format STEP
3D Model

Downloads

Download STEPDownload GLB

AI Skill Technical Reference

Edit AI Skill

QFN-20

Package: QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm Library: Package_DFN_QFN Category: IC Package 3D Model: QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm.step Format: STEP

Description

The QFN-20 is a 20-pin leadless package with an exposed thermal pad. At 4 x 4mm with 0.5mm pitch, it provides excellent thermal performance and a small footprint — roughly half the area of an equivalent TSSOP. The exposed pad connects directly to a PCB copper pour for heat dissipation. Popular for sensor ICs, small MCUs, and RF transceivers.

3D Model Details

This 3D model is from the official KiCad Package_DFN_QFN.3dshapes library. The model is available in STEP format and can be used in any 3D CAD tool.

Formats Available

  • STEP — Industry-standard 3D CAD format, importable into Fusion 360, SolidWorks, FreeCAD
  • GLB — Web-optimized binary glTF for real-time 3D rendering

KiCad Library Reference

Footprint: Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm 3D Model: Package_DFN_QFN.3dshapes/QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm.step

Sub-Skills
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What are Sub-Skills?

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

Examples:

  • A manufacturer’s configuration tool for a motor controller
  • 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 · 3D Model: Package_DFN_QFN.3dshapes/QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm.step · Updated 2026-03-02 17:31:36