445R-58LF

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445R-58LF is a type of thermistor which has low temperature coefficient and wide temperature range of operation. It is a simple structure, yet reliable component for providing temperature feedback in a wide variety of applications. In this article, we will discuss the application field and working principle of 445R-58LF.

A thermistor is a resistive component that, unlike a resistor, changes its resistance with changing temperatures. A 445R-58LF thermistor is a NTC (negative thermal coefficient) type thermistor, which means that its resistance decreases with increasing temperatures. The resistance range of a 445R-58LF is between 4.35KΩ and 22.5KΩ (at 20°C to 200°C). It is constructed from sintered synthetic material or glass particles, and is coated with platinum or nickel. The device can also be made from a ceramic-like material with a thin film of metal on its surface.

In terms of its application field, a 445R-58LF thermistor can be found in a number of different devices and applications. It is commonly used as a temperature sensing device in applications such as temperature controllers, heaters, and air conditioners. It can also be used as a current sensing element in motor control applications, and as a key component in thermostatically controlled circuits. The 445R-58LF can also be used in automotive, consumer, and industrial applications.

Now that we’ve discussed the 445R-58LF’s application field, let’s examine its working principle. At its most basic level, the device works by changing its resistance with changing temperatures. A 445R-58LF thermistor contains two dissimilar metals that create a “see-saw” effect in resistance as the temperature changes. As the temperature rises, the resistance of the thermistor increases, and as the temperature decreases, the resistance of the thermistor decreases. This fluctuation of resistance is what makes the device extremely useful as a temperature sensing element.

The device also contains a special characteristic known as a self-heating point. Above this point, the thermistor causes a reaction within itself, and the resistance of the thermistor increases even further. This phenomenon is known as positive thermal coefficient. This self-heating point is generally set at a temperature higher than the temperature of operation, so that the device will remain stable in its desired temperature range.

The 445R-58LF thermistor is a low temperature coefficient, NTC type thermistor. Its resistance range is between 4.35KΩ and 22.5KΩ (at 20°C to 200°C), and it is used in a wide variety of applications, including temperature controllers, current sensing elements, and thermostatically controlled circuits. The device works by changing its resistance with changing temperatures, and contains a special self-heating point, that causes the resistance to increase even further beyond a certain temperature.

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