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Thermistors & Thermistor Probes

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Our ptc thermistor collection

EI Sensor Technologies’ PTC thermistor collection is engineered for applications requiring reliable overcurrent protection, temperature sensing, or self-regulating heating. These thermistors exhibit a sharp increase in resistance at a specific threshold temperature, making them ideal for resettable circuit protection and temperature control. Available in a variety of resistance values, package styles, and response characteristics, our PTC solutions are built for precision and durability. Whether you're designing for industrial, automotive, or consumer electronics, our PTC thermistors deliver consistent performance in demanding environments.

EI Sensor offers a comprehensive range of Positive Temperature Coefficient (PTC) Thermistors designed to provide precise temperature control and protection in various applications. Our PTC thermistors are engineered to increase resistance as temperature rises, ensuring reliable performance and safety in critical systems. With our decades of expertise and commitment to quality, we deliver PTC thermistors that meet the highest standards and cater to the specific needs of our customers.

Our PTC Thermistor Collection

At EI Sensor, we offer a diverse selection of PTC thermistors to suit a variety of applications and requirements. Our collection includes:


  • Standard PTC Thermistors: Reliable and cost-effective solutions for general temperature sensing and protection needs. These thermistors are designed to meet common industry requirements while providing exceptional performance.
  • Customized PTC Thermistors: Tailored designs to meet unique specifications and challenging applications. Our engineering team works closely with customers to develop thermistors that precisely match their needs.
  • Probe Assemblies: Robust PTC thermistor probes for easy integration into systems requiring precise temperature monitoring and control. These assemblies are built to withstand harsh environments and provide consistent performance.


EI Sensor and its distributors maintain a comprehensive inventory of thermistors, leads, and probes to provide customers with quick access to essential products.


If you have questions about which stock products best fit your application, please contact us. We will work closely with you to ensure you select the appropriate thermistor or other components for reliable and accurate temperature sensing and control. Additionally, we are pleased to offer custom solutions for customers with unique temperature measurement requirements.

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Using the highest quality materials, state of the art equipment and proprietary production techniques, EI Sensor is dedicated to producing a temperature sensor that meets or exceeds our customers’ requirements. With a strong commitment to quality, continuous improvement is necessary. Our team continues to invest in research and development of new processes as well as enhancing existing processes that will result in a precise, efficient, cost effective thermistor, RTD or temperature probe assembly.