PTC heaters, short for Positive Temperature Coefficient heaters, have gained significant popularity in various heating applications due to their unique properties and advantages. These heaters utilize PTC materials that exhibit a positive temperature coefficient, meaning their resistance increases as the temperature rises. This self-regulating characteristic not only provides safety benefits but also contributes to energy efficiency and durability. In this article, we will explore the working principle, advantages, and applications of PTC heaters.

    Understanding the Working Principle of PTC Heaters

    The core principle behind PTC heaters lies in the behavior of the PTC materials. PTC materials, typically made of ceramic or polymer composites, exhibit a special property： when the material's temperature increases, its electrical resistance also increases. As the resistance rises, the current flowing through the material decreases, which results in a natural limit to the temperature. This self-regulating feature ensures that the heater does not overheat, preventing the risk of fires or damage to the heating system.