Sefuse

Làm thế nào để biết nếu một cầu chì nhiệt độ NEC SEFUSE (Cầu chì nhiệt) tốt hay xấu?
The following steps can be used to measure the quality of a temperature fuse (Cầu chì nhiệt) :

Use a multimeter to measure the resistance value: Set the multimeter to the resistance value measurement position, and then connect two test pens to the two ends of the Thermal Fuse . If the fuse is not blown, its resistance value should be very small. If the fuse is blown, the resistance value will be a larger number. If you are not sure about the correct resistance value, you can refer to the product manual or consult the manufacturer. ‌

SF240E SEFUSE NEC Cắt cầu chì nhiệt OEM ODM Dịch vụ

SF96E SEFUSE Cutoffs NEC Thermal Fuse 99 Degree 10A 250V

SCHOTT SEFUSE® – Reliable thermal fuses for the protection

Observe the color change: If the Thermal Fuse turns black or the resistance value is abnormally high, it needs to be replaced.

The following matters need to be noted during the measurement process:
Lead bending: When bending the lead, nó nên được uốn cong từ một phần hơn 6 mm away from the root, and the root and lead should not be damaged. Đừng buộc phải kéo, nhấn, or twist the lead. ‌
Welding operation: When welding the lead, Độ ẩm làm nóng phải được giới hạn ở mức tối thiểu, and be careful not to apply high temperature to the thermal fuse. Đừng buộc phải kéo, nhấn, or twist the thermal fuse and lead. Sau khi hàn, Nó nên được làm mát cho nhiều hơn 30 giây ngay lập tức.
Use conditions: Thermal fuses can only be used under the conditions of specified rated voltage, nhiệt độ hiện tại và được chỉ định. Pay special attention to the maximum continuous temperature that the thermal fuse can withstand.

Additional suggestions and common problems:
Replacing fuses: When a thermal fuse burns out, it needs to be replaced with a new fuse with the same voltage and rated temperature. Thường xuyên, thermal fuses are designed to be push-pull, so you only need to gently pull out the old fuse and insert the new one.
Regular inspection: When using electrical appliances, electronic equipment, and automobiles, it is very important to regularly check whether the thermal fuse is burned out.

Thermal cut-off fuses of different brands and types:

Black Square 250V Thermal Fuse Cutoff LED Fuses

250V Circuit Cut-off Temperature Thermal Fuse Ceramics

SEFUSE NEC SF Cutoffs Thermal Fuse