Series:	Accu-Curve™
Packaging:	Bulk
Part Status:	Active
Resistance in Ohms @ 25°C:	2.252k
Resistance Tolerance:	±4.4%
B Value Tolerance:	±1%
B0/50:	3892K
B25/50:	3934K
B25/75:	3960K
B25/85:	3988K
B25/100:	3999K
Operating Temperature:	0°C ~ 70°C
Power - Max:	250mW
Length - Lead Wire:	2.00" (50.8mm)
Mounting Type:	Free Hanging
Package / Case:	Bead

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Introduction to ACC021 Application Field and Working Principle

Temperature sensors are necessary components for most modern household and commercial electronic systems. Temperature sensors measure temperature changes or other variations in a given environment. The most common type of temperature sensors is the NTC thermistor. NTC thermistors are usually made of ceramic material, contain metal oxide semiconductors and are temperature dependent resistors that provide a highly precise and accurate temperature measurement value.

What is an ACC021 NTC Thermistor?

The ACC021 NTC thermistor is a type of temperature sensor developed by the company Honeywell. The ACC021 is characterized by its ability to provide both long-term stability and high accuracy at moderate cost. It offers a wide range of temperature sensing capabilities for all types of electronic systems. The ACC021 features a stainless steel casing, which serves to increase durability and provides extra protection against external influences. In addition, its high temperature measurement range of -200°C to 250°C ensures that it is suitable for most types of applications.

Applications of ACC021 NTC Thermistor

The ACC021 NTC thermistor is used in a variety of applications that require precise temperature measurement, such as automotive systems, hot water tanks, air conditioners, refrigerators and many others. It is particularly well-suited for temperature measurement in areas with limited or indirect access, such as engine compartments and PC boards.The ACC021 is also used in precision temperature instruments, where its high accuracy and long-term stability make it ideal. It is even capable of being used as a reference sensor in laboratory equipment for more precise measurements.

Working Principle of ACC021 NTC Thermistor

The ACC021 uses semiconductor metal oxide as a temperature sensing element. When exposed to temperature changes, the resistance of the metal oxide changes proportionally. The circuit containing the ACC021 is designed such that the resistance is measured by a voltage or current measurement.The ACC021 is designed to maintain an accurate and predictable resistance-temperature curve. It is also designed to retain its resistance-temperature characteristics over its operating lifespan, so it can be used in applications requiring long-term stability even in very harsh environments.

Conclusion

The ACC021 NTC thermistor is a highly accurate and reliable temperature sensor that is suitable for a wide range of applications. Its stainless steel construction gives it excellent durability, and its high temperature sensing range makes it appropriate for virtually any temperature measurement. Its predictable and accurate resistance-temperature curve make it an ideal choice for precision temperature control and measurement in laboratory equipment and other demanding applications.

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