CWF1B104H3950

Temperature Sensors - NTC Thermistors

NTC thermistors (Negative Temperature Coefficient thermistors) are temperature-sensitive semiconductor devices with a negative temperature coefficient, and are widely used in different applications for temperature measurement and control. NTC thermistors are characterized by their accurate, linearized, and stable temperature coefficient of resistance (TCR). Constructed from a semiconductor material, NTC thermistors have a high level of sensitivity to temperature, enabling precise temperature measurement and control.

The CWF1B104H3950 is a NTC thermistor capable of measuring temperatures from -40°C to +70°C with a high degree of accuracy. It has a nominal resistance at 25°C of 10kΩ and a negative temperature coefficient of -4250ppm/°C from 20-100°C. This thermistor is also capable of measuring temperatures from -20°C to +80°C with a nominal resistance of 8.67kΩ and temperature coefficient of -4000ppm/°C from 20-80°C.

Application Field

The CWF1B104H3950 is suitable for many temperature sensing applications, such as temperature monitoring in electrical equipment, HVAC systems, ovens, refrigerators, washing machines, dryers, and many more. It is also widely used in temperature compensation for circuit components in various products. For instance, its accurate temperature measurement capability allows it to be used in temperature measurement and control instruments, such as thermometers, electronic thermometers, and infrared thermometers.

Working Principle

NTC thermistors exhibit a resistance-temperature relationship (known as the Curie law) which is close to a linear phenomenon, a direct relationship between the temperature and the resistance that it carries. In general, NTC thermistors have a negative temperature coefficient which makes them more sensitive to temperature changes. When the NTC thermistor is exposed to a temperature change, its resistance decreases with an increase in temperature, and vice versa. This means that the resistance of the NTC thermistor increases as its temperature decreases.

The CWF1B104H3950 uses a two-stage plate structure for accurate temperature measurement. The C-type thermistor is composed of a temperature-sensitive and temperature-compensating resistor substrate that is attached to a special metal plate. This architecture ensures that the thermistor has a linear temperature response with accurate and reliable temperature measurement.

Conclusion

The CWF1B104H3950 is a NTC thermistor that is capable of measuring temperatures from -40°C to +70°C with a high degree of accuracy in a variety of temperature sensing applications. Its two-stage plate structure enables accurate temperature measurement with a linear temperature response. It is used in HVAC systems, ovens, refrigerators, washing machines, dryers, and more to accurately measure and control temperature. This makes it an ideal thermistor for applications that require precise temperature measurement and control.