NCP15XV103E03RC

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Temperature sensors like NTC thermistors are widely used in various electronic circuits for temperature measurement and control. NCP15XV103E03RC is a 110°C NTC thermistor from ON Semiconductor, which features a nominal 3900 kilo-ohm resistance at 25°C.

Application Field

NCP15XV103E03RC thermistor has a large range of applications in many industries. One typical example is motor temperature protection in auto and industrial applications. The thermistor can be used as an ambient temperature sensor, a motor temperature sensor, or a motor control system over temperature protection sensor. Its small size, high precision, low cost, and excellent temperature reaction enable it to provide accurate motor temperature detection and over temperature protection in a variety of motors.

In addition to motor temperature protection, NCP15XV103E03RC is also suitable for use in consumer electronics such as notebook computers, LED display panels, and operators’ handsets. The thermistor can also be used in industrial control, automotive electronics and other applications.

Working Principle

The working principle of a thermistor is based on the physical property of temperature-dependent electrical resistance. It is a type of resistor characterized by its negative temperature coefficient, meaning that resistance value decreases as temperatures increase.

NCP15XV103E03RC thermistor has a nominal resistance of 3900 kilo-ohm at 25°C. The thermistor also has a thermal time constant of 0.015 second. This thermal time constant is important because it determines how quickly the thermistor reacts to temperature changes.

The thermistor is connected in a simple two-wire circuit. When the temperature rises, the resistance value of the thermistor decreases. Thus, a voltage drop is created across the thermistor, which can be measured by a controller. By measuring and analyzing this voltage drop, the temperature can be accurately determined and motor overheating can be prevented.

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