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Thermistors & Thermistor Probes
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Surface Mount
EI Sensor offers a versatile and reliable collection of surface mount thermistors designed to meet the precise needs of various industries.
Surface Mount Thermistors
These thermistors are crafted for applications requiring compact, durable, and accurate temperature-sensing solutions. With their space-saving design, surface-mount thermistors are ideal for environments where traditional sensors may be too bulky or difficult to implement.

Our surface-mount thermistors deliver outstanding performance in temperature-sensitive applications, offering consistent resistance changes across a wide temperature range. Whether you’re working on HVAC-R systems, medical devices, or industrial controls, EI Sensor’s surface mount thermistors provide the precision and reliability you can count on. Explore our collection to find the best fit for your specific application.
Uses & Applications
Featured Surface Mount Thermistors
Surface mount thermistors from EI Sensor are widely utilized in a range of industries due to their precision, reliability, and compact design. Below are some of the most common applications:
HVAC-R Systems: In heating, ventilation, air conditioning, and refrigeration systems, surface mount thermistors are essential for monitoring and regulating temperature. They help ensure energy efficiency by providing accurate temperature data that allows the system to adjust heating and cooling levels as needed, improving overall performance and reducing energy costs.
Medical Devices: Precision is critical in the medical field, and surface-mount thermistors are frequently used in devices such as patient monitoring equipment, diagnostic tools, and laboratory instruments. Their ability to provide consistent and accurate temperature readings makes them vital for maintaining the safety and effectiveness of medical equipment in temperature-sensitive environments.
Industrial Control Systems: In industrial settings, surface mount thermistors are integrated into control systems to monitor and prevent overheating in machinery and electronics. Their high level of accuracy ensures that systems remain within optimal temperature ranges, which helps to prolong equipment life and reduce the risk of malfunction or failure.
These are just a few examples of how EI Sensor’s surface mount thermistors can be used across various industries, ensuring optimal performance and longevity of temperature-sensitive systems.
EI Sensor’s epoxy thermistors are designed for durability and precision in demanding environments. Their protective epoxy coating offers excellent resistance to chemicals and physical wear, making them ideal for harsh conditions.
These thermistors provide reliable temperature measurements over a wide operating range, from -55°C to +150°C, ensuring accuracy in both low and high temperatures. Their fast response time allows for quick temperature adjustments, which is essential in applications that require precise control.
Customization is a key feature, with options for various resistance values and temperature coefficients to match specific application needs. These sensors are also engineered for long-term reliability, providing consistent performance and reducing maintenance needs over time.

Let’s discuss your temperature-sensing needs! Contact EI Sensor today for a custom solution tailored to your application. Email us for a quote or engineering assistance.
Thermistor Probes
our collection
EL31 LL-31 SURFACE MOUNT MELF PACKAGE
EL34 LL-34 SURFACE MOUNT MELF PACKAGE
EPT4 LL-34 SURFACE MOUNT PRECISION INTERCHANGEABLE, MELF PACKAGE
EL41 LL-41 SURFACE MOUNT MELF PACKAGE
SURFACE MOUNT QUADRO-MELF
E201 SURFACE MOUNT END-BANDED
E402 SURFACE MOUNT END-BANDED
E603 SURFACE MOUNT END-BANDED
E805 SURFACE MOUNT END-BANDED
E120 SURFACE MOUNT END-BANDED
partner with ei sensor
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.
