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SEFUSE NEC SF Cutoffs Thermal Fuse OEM/ODM Service
How to tell if a sefuse NEC temperature fuse (الصمامات الحرارية) is good or bad?
The following steps can be used to measure the quality of a temperature fuse (الصمامات الحرارية) :
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.
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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, it should be bent from a part more than 6 mm away from the root, and the root and lead should not be damaged. Do not forcibly pull, press, or twist the lead.
Welding operation: When welding the lead, the heating humidity should be limited to a minimum, and be careful not to apply high temperature to the thermal fuse. Do not forcibly pull, press, or twist the thermal fuse and lead. After welding, it should be cooled for more than 30 seconds immediately.
Use conditions: Thermal fuses can only be used under the conditions of specified rated voltage, current and specified temperature. 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. Usually, 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.
| Product Name | الصمامات الحرارية, الصمامات درجة الحرارة, Thermal Cutoff |
| مادة الجسم | Plastic, سيراميك, Metal |
| التصنيف الحالي | 1-30أ |
| Rated Voltage | 250V |
| Lead Type | Axial, Radial |
| Temperature | 70C-260C |
| Application | Over-Temperature Protection |
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
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المنتجات ذات الصلة
SET Square TCO Thermal Fuse use Flat iron
A piece of fusible alloy wire is connected between the two pins of the thermal fuse, which is covered by a special transparent resin square shell. Current can flow from one pin to another. When the temperature around the thermal fuse rises to its set operating temperature, its fusible alloy wire melts and shrinks into a spherical shape, and is attached to the ends of the two pins with the help of surface tension and special resin. In this way, the circuit is permanently cut off.
Set square Thermal Limit Cutoffs Fuse use for Coffee maker
تعيين / اجلس / ري / Uchibashi The thermal fuse is a thermal protection device designed for electronic equipment to provide overheating protection. It adopts a tubular structure, and the spiral melt material is an alloy, which has the characteristics of fast melting. The model of this fuse is BF216, which is small in size and suitable for a variety of electronic equipment.
thermal fuse and circuit breaker cutoff temperature
They are the same in that they can achieve short circuit protection. The principle of a thermal fuse is to use a current flowing through a conductor to cause the conductor to heat up. When the melting point of the conductor is reached, the conductor is melted so that the circuit-protected electrical appliances and lines are not burned.