The 1K PTC Positive Temperature Coefficient Thermistor MZ5 is a type of temperature-sensitive resistor that increases its resistance as the temperature rises. With a nominal resistance of 1K ohms at room temperature, this thermistor is commonly used for overcurrent protection, temperature sensing, and circuit stabilization. The MZ5 model is typically designed for applications requiring thermal protection in circuits, such as in power supplies or motor control systems. When the temperature exceeds a certain threshold, the thermistor’s resistance increases, limiting the current flow and preventing damage to components. It is ideal for protecting sensitive electronics from overheating or current surges.