Calculadora de Largura de Trilha PCB
Calcule a largura ideal da trilha de acordo com os padrões IPC-2221
Calculadora de Largura de Trilha PCB
Use IPC-2221 based estimation to size copper trace width and review the electrical impact on resistance, voltage drop, and power loss.
Compatível com IPC-2221
When to use this calculator
Use it during routing to estimate whether your copper width is in the right range before stackup and DFM review.
Review resistance, voltage drop, and power loss when you need to understand electrical impact beyond width only.
Use the result as a conversation starter with fabrication or assembly engineers when planning copper weight and routing strategy.
Principais Recursos
Compatível com IPC-2221
Cálculos baseados em fórmulas padrão da indústria IPC-2221 para confiabilidade.
Interna e Externa
Suporte para cálculos de camadas internas e externas com diferentes propriedades térmicas.
Resultados Abrangentes
Obtenha largura, resistência, queda de tensão e perda de potência em um único cálculo.
Related resources & next steps
Check how much current a given trace can safely carry after you estimate width.
Review controlled impedance requirements when routing high-speed or RF traces.
Move from rough estimation to manufacturable copper, stackup, and tolerance planning.
Send your files to discuss DFM, copper weight, trace width, and fabrication constraints with engineering.
Perguntas Frequentes
O que é o padrão IPC-2221?
IPC-2221 é o Padrão Genérico sobre Design de Placas Impressas. Ele fornece as fórmulas usadas para calcular a relação entre a capacidade de condução de corrente da trilha de cobre, aumento de temperatura e geometria da trilha.
Por que a largura da trilha é importante?
A largura adequada da trilha garante que o PCB possa suportar a corrente necessária sem superaquecer, o que poderia levar a falhas ou danos à placa.
Can I use this calculator as the final manufacturing value?
Use it as an engineering estimate, not a final fabrication rule. Finished copper thickness, etching tolerance, stackup details, and thermal environment can change the real requirement, so final values should be reviewed with your PCB manufacturer.
Need help turning this estimate into a manufacturable PCB?
If you are balancing copper weight, current capacity, voltage drop, and DFM constraints, our team can review your stackup, routing assumptions, and fabrication targets before production.