Question 5: How Long Can a PPTC Remain in the Tripped State Without Being Damaged?
Under normal temperature and pressure conditions, safety regulations require that a PPTC must withstand remaining at maximum voltage for 1,000 hours without losing its PTC characteristics.
The longer the fuse remains in the tripped state, the greater the likelihood that its resistance may not fully recover to its original value, potentially causing it to fall outside initial specified requirements. The maximum allowable duration in the tripped state varies depending on the fault event and fuse type, making usage conditions a critical factor to consider.
