The 1.2K PTC Positive Temperature Coefficient Thermistor MZ5 is a temperature-sensitive resistor that exhibits an increase in resistance as the temperature rises. With a nominal resistance of 1.2K ohms at room temperature, it is commonly used in applications for overcurrent protection, temperature sensing, and circuit stabilization. The MZ5 model is ideal for use in circuits where thermal protection is needed. When the temperature exceeds a certain level, the resistance of the thermistor increases, thereby limiting the current and protecting sensitive components from overheating or electrical surges. This thermistor is widely used in power supplies, motor controllers, and other electronic devices requiring thermal regulation and protection.