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Calculadora de Largura de Trilha PCB (IPC-2221) — Ferramenta online grátis

Corrente vs largura de trilha vs aumento de temperatura

Largura de trilha PCB por IPC-2221A: largura necessária para capacidade de corrente dado aumento de temperatura + peso de cobre (1oz, 2oz). Sem cadastro.

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PCB Trace Width Calculadora (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?
Não 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). Custo: 2oz costs ~30% more, used for power-handling boards.

Pontos-chave

  • PCB Trace Width Calculadora (IPC-2221) is a free, browser-based calculator tool — current vs trace width vs temp rise.
  • Não signup, no downloads, no file uploads. Ferramentas run in your browser; the few that need an outside service say so on the page.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

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

  1. Open the tool: Launch PCB Trace Width Calculadora (IPC-2221) on Ferramentaolis — 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 Calculadora (IPC-2221) — Quick Facts

Preço
Grátis — sem limites, sem marca d’água, sem paywall
Privacidade
Processado no seu navegador. Ferramentas que precisam de um serviço externo avisam isso na página. As visitas são contadas (Google Analytics).
Plataforma
Qualquer navegador moderno — desktop, tablet ou celular
Categoria
Calculadora Ferramentas on Ferramentaolis
Offline
Works offline after first visit (Progressive Web App)
RecursoDetalhes
FerramentaPCB Trace Width Calculadora (IPC-2221)
CategoriaCalculadora
Cadastro necessárioNão
Upload de arquivoNenhum — processado no navegador
Suporte mobileTotalmente responsivo
CustoGrátis para sempre

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

You should try PCB Trace Width Calculadora (IPC-2221) for a quick, private way to current vs trace width vs temp rise. Processing happens in your browser and files are never uploaded; the few tools that need an outside service say so on the page.

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% Privacidade. Esta ferramenta funciona inteiramente no seu navegador. Seus dados nunca são enviados a nenhum servidor.