Epoxy-encapsulated NTC temperature sensor

Main Features:

An epoxy‑encapsulated NTC temperature sensor specially designed for miniaturized, high‑reliability temperature monitoring in automotive electronics. Featuring a compact, pointed epoxy package and a high‑precision NTC thermistor, it offers a small footprint, excellent water and moisture resistance, and rapid response. With outstanding thermal stability across extreme temperatures and superior aging resistance, it is widely used for embedded or surface‑mount temperature sensing in critical components such as automotive power‑battery modules, vehicle‑mounted electronic control units, charging management systems, and HVAC systems, providing stable, reliable core data to enable intelligent thermal management and overheat protection in automotive electronic devices.

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Category:

Automotive Electronics

Keyword: Epoxy-encapsulated NTC temperature sensor

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Key Features

Miniature pointed epoxy resin encapsulation, compact in size and easy to install.
Waterproof, moisture-resistant, and aging‑resistant, designed to withstand the demanding in‑vehicle environment.
High-precision, high-sensitivity NTC chip with accurate temperature measurement and rapid response.
High-temperature-resistant insulated wire, suitable for automotive wiring harness applications.
High stability and low drift, reducing maintenance costs.

Typical application scenarios

Power battery module temperature monitoring: Embedded within the battery module or mounted on the cell surface, it continuously tracks the battery’s operating temperature, providing data to the BMS to ensure safe operation and optimal charging efficiency.
Vehicle-mounted electronic control unit (ECU) temperature monitoring: Mounted on the surface of the ECU module to track its operating temperature, preventing high‑temperature‑induced malfunctions and enhancing system stability.
Charging System / Onboard Power Temperature Monitoring: Enables internal or surface temperature monitoring of onboard chargers, DC‑DC converters, and other devices, ensuring the safe and stable operation of the charging system.
Vehicle‑mounted air conditioning / Refrigeration system temperature sensing: Enables embedded temperature monitoring of components such as the evaporator and condenser, supporting precise temperature control and improving the energy efficiency of the air‑conditioning system.
Automotive sensors / Temperature monitoring for auxiliary systems: Enables temperature monitoring in tire pressure monitoring, lighting control, seat heating, and other auxiliary systems, enhancing overall system reliability.

Technical Specifications

Sensor Type: Epoxy-Encapsulated NTC Thermistor Temperature Sensor
Temperature measurement accuracy: ±0.5°C (typical value)
Temperature measurement range: -40°C to +125°C (can be extended to higher temperatures upon request)
Probe encapsulation: All‑in‑one epoxy resin encapsulation (tapered micro‑design, waterproof and moisture‑proof)
Probe dimensions: Miniature size (diameter and length can be customized to suit the installation space)
Wire material: High-temperature-resistant insulated wire (black, aging-resistant and interference-proof)
Wire length: Standard 300 mm / 500 mm (custom lengths available upon request)
Termination type: bare wire / terminal / connector (customizable to match the customer’s equipment interface)
Protection rating: IP67 (fully encapsulated in epoxy resin, resistant to water, moisture, and oil contamination)
Applicable scenarios: Temperature monitoring of critical automotive components such as power batteries, electronic control units, charging systems, and air-conditioning systems.

Customized Services

We can provide end-to-end customization services tailored to your specific application scenarios and equipment requirements—covering everything from temperature measurement range, probe size, cable length, tip configuration, and packaging processes to overall performance—ensuring seamless compatibility between the sensor and your in-vehicle systems. We also support mass production and rigorous quality inspection, guaranteeing delivery efficiency and product consistency.

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