TFPT0805L1201FZ

Temperature Sensors - PTC Thermistors

PTC thermistors are temperature-sensitive components that provide over current protection and temperature sensing for many different electronic devices. The TFPT0805L1201FZ is one such thermistor specifically designed with a self-resetting feature, which helps to restore the current and voltage conditions of the circuit back to their normal, safe operation levels after an over current or temperature event.

In general, PTC thermistors are made from a polycrystalline ceramic material containing a mixture of semiconductor elements that are designed to act as a temperature-sensing switch, with electrons and holes generated by the applied heat energy. When the temperature of the thermistor rises beyond a set trigger point, its electrical resistance increases abruptly, thus creating a safe current limit.

The TFPT0805L1201FZ is a positive temperature coefficient (PTC) of resistance thermistor in a 0805 chip size package with a 1201 temperature rating. It features a low triggering current and low self-heating for high performance. The thermistor is specially designed with a self-resetting feature, so that the current and voltage conditions of the circuit can be returned to the normal safe operating parameters after over current or temperature events. It also has a high temperature accuracy (±1%) and fast response time, ensuring reliable temperature control.

The TFPT0805L1201FZ thermistor is versatile and can be used in a variety of applications, such as over-temperature protection, surge suppression, and temperature compensation. For example, it can be used to control the power output of an AC/DC power supply by sensing the temperature of the transistor, and reducing or increasing the voltage accordingly. Similarly, when used in HVAC systems, the thermistor can help to monitor and maintain room temperatures. It can also be used in medical and industrial equipment, where its temperature sensing capabilities can help to improve safety and accuracy.

In conclusion, the TFPT0805L1201FZ is an effective thermistor that offers a variety of uses in many different electrical and temperature-sensing applications. It offers high accuracy and a fast response time, as well as a self-reset feature that helps to restore the current and voltage conditions of the circuit back to safe operating parameters after an over-temperature event.