Semiconductor fuses are used in electronic circuits to provide sharp and reliable protection for sensitive components such as diodes, transistors, and thyristors. These components can easily be damaged by short circuit or overcurrent conditions, and semiconductor fuses are designed to react much faster than standard fuses. Their quick response helps reduce damage and prevent expensive system failures. Semiconductor fuses are usually used in power supplies, motor drives, inverters, and other high-speed electronic systems where accurate security is important. By quickly separating the defects, they ensure the safety, performance, and longevity of the entire circuit.