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Leiterbahnbreite-Rechner (IPC-2221) — Kostenloses Online-Tool

Strom vs. Leiterbahnbreite vs. Erwärmung

Leiterbahnbreite nach IPC-2221A: erforderliche Breite für Strombelastbarkeit bei gegebener Erwärmung + Kupfergewicht (1oz, 2oz). Innen- vs. Außenlagen.

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PCB Trace Width Rechner (IPC-2221A)

Calculate minimum PCB trace width for given current + allowed temperature rise. Per IPC-2221A standard. External vs internal layers, copper weight 0.5/1/2/3 oz.

How to use this tool

  1. 1

    Current + temp rise

    Trace current and allowed Δt.

  2. 2

    Copper weight + layer

    1oz/2oz, internal vs external.

  3. 3

    Min trace width

    Per IPC-2221A formula.

Frequently Asked Questions

IPC-2221A formula?
I = k × ΔT^0.44 × A^0.725. External: k = 0.048; internal: k = 0.024. ΔT in °C, A in mil² (cross-section), I in amps. Solved for required area.
Why are internal traces worse?
Nein air convection — heat trapped. Same trace width carries ~half the current vs external. Internal layers always need ~2× wider for same current.
1oz vs 2oz copper?
1oz = 35 µm thick, 2oz = 70 µm. 2oz roughly halves required width (more cross-section). Kosten: 2oz costs ~30% more, used for power-handling boards.

Wichtigste Punkte

  • PCB Trace Width Rechner (IPC-2221) is a free, browser-based calculator tool — current vs trace width vs temp rise.
  • Nein signup, no downloads, no file uploads — your data stays on your device.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use PCB Trace Width Rechner (IPC-2221)

  1. Open the tool: Launch PCB Trace Width Rechner (IPC-2221) on Toololis — no account or download needed.
  2. Enter your data: Paste text, enter values, or select a file directly in your browser.
  3. Get instant results: Everything is processed locally — results appear immediately.
  4. Copy or download: Save your output or share it. Bookmark for quick access next time.

PCB Trace Width Rechner (IPC-2221) — Quick Facts

Preis
Kostenlos — keine Limits, kein Wasserzeichen, keine Paywall
Privatsphäre
100% browser-basiert — keine Daten verlassen dein Gerät
Plattform
Jeder moderne Browser — Desktop, Tablet, Mobil
Kategorie
Rechner Tools on Toololis
Offline
Works offline after first visit (Progressive Web App)
MerkmalDetails
ToolPCB Trace Width Rechner (IPC-2221)
KategorieRechner
Anmeldung nötigNein
Datei-UploadKeine — wird im Browser verarbeitet
Mobile-UnterstützungVoll responsive
KostenFür immer kostenlos

Why Use PCB Trace Width Rechner (IPC-2221)?

You should try PCB Trace Width Rechner (IPC-2221) for a quick, private way to current vs trace width vs temp rise. All processing happens in your browser. Your files and data never leave your device. According to web.dev, client-side processing is the gold standard for privacy.

On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.

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100% Privatsphäre. Dieses Tool läuft komplett in deinem Browser. Deine Daten werden niemals auf einen Server hochgeladen.