121-303HAF-W01

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NTC thermistors are temperature sensors that measure the voltage, current, or resistance output to determine a temperature change. They are most commonly used in the automotive and consumer electronics industries. The 121-303HAF-W01 is an example of an NTC thermistor. This section will discuss the application field and working principle of 121-303HAF-W01.

The 121-303HAF-W01 is designed for various industrial temperature sensing applications including glass and steel processing, furnace control, liquid level, and dielectric heat transfer. It can accurately measure temperatures ranging from -40°C to +250°C with a two-wire 4-20 mA loop power supply. The thermistor has a small size which makes it suitable for space-limited applications and its temperature range is well suited for industrial use. In addition, it has a high operating temperature range of -60°C to +150°C and is resistant to corrosion, making it suitable for both interior and exterior environments.

The working principle of the 121-303HAF-W01 is based on the principle of negative temperature coefficient (NTC). NTC thermistors are made of a semiconductor material that changes its electrical resistance when the temperature changes. The thermal coefficient of the thermistor (β) can be determined from the temperature of the reference junction and the resistance of the thermistor. The resistance can then be converted into a voltage output, which can be used as the control signal.

The thermistor also has a simple digital interface that allows for easy connection to data acquisition systems for temperature monitoring and control. It is resistant to electrical noise and has an extremely fast response time of up to 1 μs. In addition, the 121-303HAF-W01 is sealed and waterproof with a pressure rating of up to 180 PSI, making it suitable for a wide range of industrial applications.

In summary, the 121-303HAF-W01 is an NTC thermistor that is designed for various industrial temperature sensing applications. It has a small size, high operating temperature range, and is resistant to corrosion. The working principle of the thermistor is based on the principle of negative temperature coefficient (NTC) and it has a digital interface for easy connection to data acquisition systems. The thermistor is also sealed and waterproof with a pressure rating of up to 180 PSI, making it suitable for a wide range of industrial applications.

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