PTFT0805L1001JV

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PTFT0805L1001JV is a temperature sensor under the category of PTC (positive temperature coefficient) thermistors. Typically, the PTFT0805L1001JV is a bead-like semiconductor device that show a large increase of its resistance proportional to its temperature rise. It generally has a ceramic body with a pair of metal wires at its ends for connections.

Application Fields

The PTFT0805L1001JV serves a wide range of industries where temperature monitoring is of paramount importance. This thermistor is most commonly used for temperature measurement and control of various equipment, for example, HVAC, gas appliances, transformers, welding, and refrigerators, to name a few. It is also useful for temperature protection of motor drives, MOSFET circuits, and LED lighting systems.

Working Principle

The fundamental concept behind a PTC thermistor is that the resistance increases as temperature increases, and vice versa; a process known as the positive temperature coefficient. The higher the temperature, the more electric current is restricted, resulting in a rise in resistance. This property is primarily exploited in heating and overcurrent protection devices.

The PTFT0805L1001JV may be hooked up in series or parallel configurations. In series operation, the PTFT0805L1001JV acts as a thermal switch. When the resistance reaches a certain value, electric current starts to decrease, thus affecting the connected load that experiences a drop in power. On the other hand, in a parallel configuration, the resistance-temperature curve is used to calculate the ambient temperature based on the accumulated electric current.

To sum up, the PTFT0805L1001JV is a useful temperature sensing device. It finds applications in a variety of industries due to its ability to directly sense changes in temperature. As a PTC thermistor, its working principle is based on the elevated resistance due to temperature rise.

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