PCB 设计计算器
完整工程工具包
PCB design estimates and reference guides. Differential and embedded microstrip calculations and numeric clearance/creepage results are temporarily unavailable.
电流与功率
阻抗与信号
焊盘与过孔
安全与标准
制造工艺
按行业
参考标准
为什么使用我们的计算器？
有说明的计算模型
走线宽度和过孔电流采用 IPC-2221 经验幂律；阻抗采用已发表的单端近似模型。结果均为估算值，各页面列有计算假设。
即时结果
输入时实时计算。无需页面刷新或等待结果
100% 免费
无需注册、无限制、无广告。为您的项目自由使用所有计算器
Definitions and References
A wire harness is an organized bundle of wires, terminals, and protective coverings used to route power and signals through equipment. Cable assembly refers to prepared and terminated cables used for a specific interconnect purpose, and those definitions matter because PCB calculators often sit upstream of real connector and harness decisions.
Frequently Asked Questions
Which calculator should I open first?
Start with the trace width calculator when current and copper heating are the main constraint, then move to impedance, creepage, or via tools as the layout problem becomes more specific.
Are these calculators based on recognized standards?
The trace-width tool implements an IPC-2221 power-law estimate. Numeric clearance/creepage, differential impedance and embedded microstrip results are unavailable pending validation.
Can one calculator replace a full stackup review?
No. The tools accelerate estimation, but controlled impedance and manufacturing decisions still need your actual laminate, copper, and fabricator limits.
Why are wire harness and cable assembly definitions relevant here?
Many boards connect into larger electromechanical products, so PCB routing decisions often influence connector, cable assembly, and harness choices.
Do the tools support both current and signal-integrity problems?
The toolkit includes current capacity, isolated-line impedance and panelization estimates. Clearance/creepage is a design-condition checklist; differential calculation is unavailable.
开始设计
从我们最受欢迎的工具开始 - PCB 走线宽度计算器。
打开走线宽度计算器