PCB Thermal Relief Calculator


In the realm of printed circuit board (PCB) design, thermal relief plays a crucial role in managing heat dissipation. The PCB Thermal Relief Calculator provides a handy tool to efficiently calculate thermal relief for components on a PCB. This article will guide you through its usage, the underlying formula, a practical example, and frequently asked questions.

How to Use

To utilize the PCB Thermal Relief Calculator, input the relevant values in the provided text fields. The calculator allows you to specify parameters such as copper trace width, current, and ambient temperature. Once the inputs are set, click the “Calculate” button to obtain the thermal relief value.


The thermal relief calculation involves intricate factors, and the formula used by the calculator is:

This formula takes into account the critical aspects of the PCB design to provide an accurate thermal relief value.

Example Solve

Let’s consider an example where the copper trace width is 0.5 mm, the current is 2 A, and the ambient temperature is 25°C. Plugging these values into the formula:


Q: What is PCB thermal relief?

A: PCB thermal relief is a technique used in PCB design to enhance heat dissipation from components, typically through copper traces.

Q: Why is thermal relief important in PCB design?

A: Thermal relief ensures efficient heat dissipation, preventing components from overheating and maintaining overall circuit integrity.

Q: How does the calculator determine thermal relief?

A: The calculator uses a formula that considers copper trace width, current, and ambient temperature to calculate the thermal relief.


The PCB Thermal Relief Calculator serves as a valuable tool for designers to optimize heat management in their PCB layouts. By understanding how to use the calculator and the underlying formula, engineers can make informed decisions to enhance the reliability and performance of their electronic circuits.

Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *