Views: 0 Author: Site Editor Publish Time: 2022-11-15 Origin: Site
The continuous advancement of electronic integrated system technology has promoted the continuous optimization of the thermistor's functions and characteristics.The epoxy thermistor has high heat resistance, can effectively protect the thermistor from damage caused by excessive temperature, can help people detect the temperature, maintain the temperature in a safe range, and make the equipment Operate at a more suitable temperature to improve output efficiency.
Why is epoxy thermistor using advanced epoxy resin material better than traditional silicone resin material?
What are the characteristics of the semiconductor thermistor material used in epoxy thermistors?
How does epoxy thermistor improve performance?
High-grade high-voltage resistant epoxy resin encapsulation is significantly better than traditional silicone encapsulation, avoiding partial discharge caused by secondary encapsulation, and improving the reliability and stability of the high-voltage system. It is recommended to clean the surface of the high-voltage resistor before filling it. The surfactant coating is conducive to the perfect combination of the filling material and the surface of the resistor. High-voltage resistors are often used in power systems such as resistance transformers and are often filled with secondary filling. The surface of the resistor package must be smooth and must match the secondary filling material. Otherwise, a small gap may be formed between the resistor surface and the filling material, resulting in partial discharge in a high-voltage environment, thereby carbonizing the packaging material. High-grade high-voltage resistant epoxy resin encapsulation is significantly better than traditional silicone encapsulation, avoiding partial discharge caused by secondary encapsulation, and improving the reliability and stability of the high-voltage system. It is recommended to clean the surface of the high-voltage resistor before filling it. The surfactant coating is conducive to the perfect combination of the filling material and the surface of the resistor.
Such materials include single-crystal semiconductors, polycrystalline semiconductors, glass semiconductors, organic semiconductors, and metal oxides. They all have a very large temperature coefficient of resistance and a high resistance rate, and the thermistors made with them are also very sensitive. According to the temperature coefficient of resistance, it can also be divided into negative resistance temperature coefficient materials and positive resistance temperature coefficient materials. Within a limited temperature range, negative resistance temperature coefficient materials can reach -6*10-2/℃, and positive resistance temperature coefficient materials can be Up to -60*10-2/℃ above. For example, barium ceramic is an ideal semiconductor material with a positive temperature coefficient of resistance. The above two materials are widely used in temperature measurement, temperature control, temperature compensation, switching circuit, overload protection, and time delay, etc., such as making thermistor thermometer, thermistor switch, and thermistor thermometer, thermal The sensitive resistance switch and the thermistor delay relay error, etc.
This type of material has an exponential relationship between resistance and fluidity, so the temperature measurement range is narrow and the uniformity is poor.
1. Use electronic-grade epoxy resin.
2. Use a high-functional polymer curing agent.
3. High-temperature post-treatment.
4. Use white hollow microspheres as fillers.
5. All materials have no water or very low moisture.
6. The filler has a higher resistivity.
Epoxy thermistors are widely used in electronic equipment in modern society and have high sensitivity for temperature detection. Our company has a scientific production management system that can provide you with quality-guaranteed products. In addition, we have an efficient express service that can quickly deliver the products to your hands. If you want to know more about epoxy thermistor-related information, please click our company website: https://www.cnjept.com/.
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