KW102J2

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

NTC thermistors are types of temperature sensors with the acronym NTC meaning "Negative Temperature Coefficient". The KW102J2 is a popular NTC Thermistor with an application field and working principle that make it an ideal choice for precision temperature measurement.

Application Field

The use of the KW102J2 NTC thermistor is versatile; it can be used for controlling temperatures in air, liquid or in soil. In an industrial application, it can be used to limit the temperature during storage, manufacturing, and transportation. Additionally, it can be used in weather or environment measurements as well as in HVAC or refrigeration. Related applications include the use of items such as housing, appliances, cars, and other electronic products.

It is also suitable for use in laboratories, medical equipment as well as in kitchen appliances, measuring the temperature of foods. What sets the KW102J2 apart is its resistance within a temperature range of -40° to +150°. This means that it can detect temperature variations in a -40° to +150° centigrade range which is much superior to many thermistors on the market.

Working Principle

NTC thermistors work by changing their resistance to changes in temperature and the KW102J2 is no different. It works by producing a different voltage drop depending on the temperature. It does this by using a semiconductor material in a disc or chip form that is mainly composed of metal oxides such as manganese, nickel, cobalt and other materials. The material has a negatively-charged resistance, so upon a change in temperature the resistance increases or decreases, respectively. When the temperature rises, resistance decreases and vice versa.

The specific circuit of this type of thermistor works on the principle of a transistor system. When the electrons pass through the semiconductor material, the electrons and holes stack on each other and conduct electricity. The conductivity of the thermistor depends on the temperature factor as well as the voltage applied, creating a small current which is then proportional to temperature.

The inverse and direct linearity of the KW102J2 thermistor\'s resistance means that it can adjust its own heat flow quite perfectly and changes in the circuit will be proportional to temperature changes. This makes the KW102J2 thermistor particularly suitable when an electronic temperature control is needed.

Advantages and Disadvantages

NTC thermistors, including the KW102J2, have many advantages. They are relatively small and offer reliable, precise measurements. Additionally, they are resistant to shock and other external impacts as well as being stable in long-term use. They are widely used and easy to handle thanks to their low cost. Their fast responding time and wide temperature range also make them an excellent choice for temperature measurement.

The primary disadvantage of NTC thermistors is that they are sensitive to humidity. If the humidity in the environment is too high, it can affect the accuracy of the measurements taken. Additionally, due to their material composition, NTC thermistors can be prone to wear and tear.

Conclusion

The KW102J2 is a popular NTC Thermistor with an application field and working principle that make it an ideal choice for precision temperature measurement. It is particularly suitable for applications where a fast response and a wide temperature range are needed. It also offers reliable and precise measurement that is resistant to shock and external impacts. Its cost efficiency and ease of use make it an attractive choice, but the downside of it is that it is sensitive to humidity and has the potential to be affected by wear and tear.

The specific data is subject to PDF, and the above content is for reference