SEFUSE NEC SF 熔断器热熔断器 OEM/ODM 服务

如何判断 sefuse 是否是 NEC 温度保险丝 (热熔断器) 是好是坏?
The following steps can be used to measure the quality of a temperature fuse (热熔断器) :

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 熔断器热熔断器 OEM ODM 服务

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, 它应该从一个零件弯曲超过 6 距根部毫米, and the root and lead should not be damaged. 请勿强行拉扯, 按, or twist the lead. ‌
Welding operation: 焊接引线时, 加热湿度应限制在最低限度, and be careful not to apply high temperature to the thermal fuse. 请勿强行拉扯, 按, 或扭转热熔断器和引线. 焊接后, 应冷却超过 30 立即秒.
Use conditions: Thermal fuses can only be used under the conditions of specified rated voltage, 当前和指定温度. 特别注意热熔断器能承受的最高连续温度.

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. 通常, 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, 电子设备, 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