Electric Fan Motor Axial Ceramic Case Resistor Type Temperature Fuse Thermal Cutoff Fuse

Structure
The thermal fuse is composed of ceramic shell, low melting point alloy wire, special resin, pin copper wire and sealing resin.

Apprearance
The marking must be clear; the sealing resin should fill the mouth and it is acceptable; the lead tin-plated layer is good; there is no oxidized black spot damage; the shell has no damage marks, perforations, etc.

Experimental Method
The experimental conditions are temperature 25±10℃, humidity 65±15%M
1 Action humidity accuracy: Rely on the IE691: 1995 inspection method and measure with the built-in silicone oil pool in the thermostat.
2 Size: Measure the finished product with a micrometer/vernier ruler.
3 Appearance: visual inspection.
4 Insulation resistance: Measure the finished product with SP-3A digital megohmmeter, and measure the voltage DC500V.
5 Withstand voltage: Use the ZNY-12 withstand voltage test to determine the finished product, which takes 1 minute.
6 Tensile force: Measure the finished product with a push-pull tester, and the pin bears 1.5 pounds of pulling force for 10 minutes without damaging the components.
7 Torsion: Bend the lead at 10mm at 90°C, and then reverse it at 180°C without damaging the component.

Test Requirements
1. Rated operating temperature (Tf): The temperature at which the thermal fuse is tested according to the standard method to change its conductive state. (The Japanese Electrical Appliances Management Law stipulates that the tolerance range is ±7℃ for operation).

2. Measured operating temperature: The temperature fuse is heated in the silicone oil bath at a rate of 0.5-1°C per minute, and the fusing temperature obtained when the detection current is less than 100MA. It is the actual temperature of the thermal fuse.

3. Holding temperature (Tc): The maximum temperature at which the thermal fuse can maintain 168 hours without changing its conductive state when passing the rated current.

4. Limit temperature (Tm): The maximum temperature at which the thermal fuse can withstand 10 minutes without reconnection.

5. Rated voltage (Ur): The highest working voltage of the thermal fuse.

Dongguan Tianrui Electronics Co., Ltd. was founded in 2010. It covers an area of 4,000 square meters and has a monthly production capacity of 50 million pieces. We are committed to be a comprehensive circuit protection component manufacturer and solution supplier. We are specialized in the design, development, production and sale of over-current protection, over-temperature protection, and over-voltage protection. Our products are widely used in consumer electronics, automobiles, ships, communications, power supplies, power tools, new energy and other fields. Our products cover auto-fuse, auto-fuse holder, current fuse, current fuse holder, temperature fuse, SMD fuse, resettable fuse, circuit breaker, thermal switch and so on. our products meet international standards including UL,

UR,CSA,CUL,VDE,TUV,PSE,CE,CCC,ROHS certification etc.

Partners:

Our products not only sell well in mainland China but also in North & South America, Southeast Asia and many other countries and regions. Our company has independent development and design capabilities, plastic molding, and metal stamping departments, and is equipped with multiple automatic fuse production lines and testing equipment and strives to find the best raw material suppliers. As we always put the quality at the first place, we have built a complete quality assurance system, which is the guarantee of the safety and stability of each product. Meanwhile, If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us.

We are looking forward to the cooperation with you in the near future.