B59119C1120A51

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PTC thermistors, also known as positive temperature coefficient thermistors, are temperature-measuring devices. These components are active resistors composed of polycrystalline ceramics with conductive layers deposited on its surface or embedded within it. A PTC thermistor is a semiconductor device with a wide range of application fields, including temperature sensors. B59119C1120A51 is a commonly used PTC thermistor for temperature sensing applications.Temperature monitoring and control are important in many applications. Temperature sensors are necessary for accurate temperature sensing. PTC thermistors offer several advantages, including long-term reliability, low cost and robustness. They are particularly suitable for temperature-sensing applications, making them renowned for their accuracy. The resistivity of a PTC thermistor dynamically changes as a result of shifts in temperature. It is usually represented by a curve in a graph which demonstrates an initially linear decrease in resistivity when the temperature rises from 0°C to 85°C. From 85°C onwards, the resistivity of the PTC thermistor increases with further rises in temperature; this is common in the B59119C1120A51 PTC thermistor. The negative temperature coefficient is simulated at a temperature range of -5°C to 50°C. At -5°C, the B59119C1120A51 PTC thermistor has a resistance of 18.14KΩ and a positive temperature coefficient of 1.16KΩ/°C.PTC thermistors offer a wide variety of application fields. They are commonly used as temperature sensing elements in heating appliances, mainly such as ovens, dishwashers, refrigerators and hair dryers. Additionally, PTC thermistors are often employed as over-temperature protection features in air-conditioners, power supplies, battery packs, motor drives and LED projects. The working principle of a PTC thermistor is based on its resistance which results from temperature changes. Heat energy passing through the crystal lattice of a PTC thermistor mobilizes the electrons, thus increasing the current in its circuit and lowering its resistance. When the temperature lowers, the electron motion reduces, hindering the current flow and increasing the resistance of the component.

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