Language 
A resettable fuse is an overcurrent protection device. Unlike conventional fuses that require replacement after a fault, it automatically resets once the fault is removed — no manual intervention needed.
Its scientific name is Polymeric Positive Temperature Coefficient (PPTC) thermistor, which reveals its operating principle. It is produced by blending conductive particles with high‑molecular organic polymers under high pressure, high temperature, and a sulfurization reaction, using a specialized process. Mainly used for overcurrent and short‑circuit protection, it helps safeguard your products every step of the way.
