High Stability 10K Ohm 3950B 1% Tolerance Epoxy Encapsulated NTC Thermistor

Product Description

This epoxy encapsulated NTC thermistor temperature sensor is designed for high-accuracy temperature detection in industrial, automotive, consumer electronics and home appliance applications. It operates on the negative temperature coefficient principle, in which resistance decreases as temperature increases, enabling fast and reliable temperature feedback in a wide range of operating conditions. The model is built around a high-sensitivity ceramic NTC chip, encapsulated in epoxy resin to provide stable mechanical support and environmental protection. With a 10K Ohm nominal resistance at 25°C and a B-value of 3950K, this sensor delivers consistent thermal sensitivity across its entire operating range.

The ±1% tolerance on both resistance and B-value ensures excellent interchangeability between batches, making it suitable for OEM production lines that require strict parameter control. The epoxy bead structure also helps reduce thermal drift over long-term operation, maintaining accurate temperature readings even under continuous electrical stress. This NTC temperature sensor is widely used in thermostat controls, temperature compensation circuits, battery management systems, industrial controllers and household appliances.

Each sensor is equipped with a 2-meter PVC insulated lead wire, which provides good electrical insulation, flexibility and ease of installation. The wire is resistant to common mechanical stress and moderate environmental exposure, making it suitable for general-purpose temperature monitoring applications. Customers can also request customized lead lengths, terminal connectors, epoxy coating thickness and probe shapes according to their project requirements.

Product Features

• 10KΩ nominal resistance at 25°C
• B-value 3950K with ±1% tolerance
• Epoxy encapsulated thermistor chip
• -40°C to 125°C operating temperature range
• 2M PVC insulated lead wire
• High long-term stability and low drift
• Fast thermal response
• RoHS compliant material
• Customizable wire length and connectors

Typical Applications

• Smart thermostats
• Household appliances
• Industrial control modules
• Battery management systems
• Temperature compensation circuits
• LED lighting drivers
• Automotive interior sensors

Technical Specifications

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Advantages & Selling Points

This sensor stands out for its high stability, tight tolerance and reliable performance in general industrial applications. The epoxy encapsulation protects the NTC chip from moisture, dust and mechanical damage, while the 2-meter lead wire simplifies field wiring and equipment integration. Compared with ordinary bead-type thermistors, this model offers better parameter consistency, which reduces calibration workload during mass production.

FAQ

Q1: What does B-value mean?

A: The B-value is a thermal constant that describes the relationship between resistance and temperature. A higher B-value usually means higher sensitivity in the medium temperature range.

Q2: Can I get a custom cable length?

A: Yes, we support customization of cable length, wire type, terminal connector and probe shape based on your requirements.

Q3: Is this sensor waterproof?

A: The epoxy version has limited moisture resistance. For immersion use, we recommend our IP67 or IP68 waterproof stainless steel probe series.