TFPT0805L4701FM

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PTC thermistors are solid-state semiconductor devices in the form of an axially symmetrical disc constructed from polycrystalline material. Their electrical resistance is inversely proportional to the ambient temperature, meaning that as the temperature increases, the resistance decreases. The TFPT0805L4701FM PTC thermistor uses a resistance element made of a material that is sensitive to temperature change to vary its resistance according to the sensed temperature.

The TFPT0805L4701FM PTC thermistor is used as a temperature sensing device for a variety of applications. It is most often employed in consumer products, such as portable devices, as a temperature compensation circuit or a protection circuit. It can also be used for the detection and control of fluid temperatures in automotive and HVAC systems. In addition, it has been effectively integrated into battery packs and systems as a safety component.

The working of the TFPT0805L4701FM PTC thermistor is based on the PTC material’s Curie temperature property. The Curie temperature is the temperature above which the PTC thermistor materials exhibits resistance changes due to temperature increase. As the temperature increases, the resistance decreases exponentially, and as the temperature decreases, the resistance increases exponentially. This enables the thermistor to accurately detect and respond to changing temperatures.

The TFPT0805L4701FM PTC thermistor is rather simple in its operation and construction, making it a highly reliable and cost effective temperature sensing option. It is capable of a wide operating temperature range, from -40°C to +150°C, with a tolerance of ±2°C. The thermistor features a total resistance of 47K when measured at 25°C in a dry environment. This resistance is relatively constant over most of the operating temperature range, before increasing exponentially at temperatures close to the Curie temperature.

The typical application for the TFPT0805L4701FM PTC thermistor includes temperature control in consumer electronics, automated process control, HVAC systems, automotive and battery safety systems. Despite its relatively simple technology, the thermistor has a wide range of applications across industries.

In conclusion, the TFPT0805L4701FM PTC thermistor is a reliable and cost effective temperature sensing option for a variety of applications. Its highly repeatable electrical readings, simple operating principle, wide operating temperature range, and accurate response to temperature change, make it a popular choice in applications such as consumer electronics, automotive, and medical. As such, the thermistor is classified as a Temperature Sensor – PTC Thermistor.

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