What Is a Ceramic Resistor?
Positive temperature coefficient thermal ceramic resistor is also called PTC. Thermal ceramic resistor. Semiconductor thermal ceramic with significant positive temperature coefficient characteristics. A type of semiconducting ceramic material with barium octoate or barium octoate-based solid solution as the main crystal phase. Its main characteristic is that the resistivity can change within a narrow temperature range of 20-30 ° C. The Curie temperature of many gates is usually between -8 and 380 ° C. High withstand voltage strength. Using barium carbonate and dioxin as raw materials, using donor doping technology, trivalent ions such as lanthanum, cerium, neodymium, praseodymium, yttrium, bismuth, antimony, etc. partially replace the tetravalent recognition ions. ) Sintering can form a solid solution to achieve semiconductivity. Its resistivity can reach below 100 · cm. The two formulations often add AI2O3, SiO2, TiO2 (also known as AST) to form a glass phase, and absorb harmful impurities in the raw materials that affect semiconductivity ( (Such as potassium, sodium, ferrous, magnesium, etc.). In order to improve the positive temperature coefficient effect and improve the physical properties, a small amount of thorium oxide and manganese oxide are often added. In order to increase the Curie temperature of barium cinnamate semiconductor ceramics, lead cinnamate can be introduced; if the Curie temperature is lowered, the cinnamate button can be added to make (Ba .Pb, Sr) Ti03 high temperature or low temperature resistance positive temperature coefficient Min ceramic. The requirements for the composition of the ingredients and the firing system are very strict. If the composition of the ingredients changes, the firing temperature is unstable, and improper control will affect the product performance and even form an insulator. It can be used to make liquid level depth detectors, temperature controllers, current limiters, motor and transistor overheat protectors, self-controlling heating elements (such as heaters, beauty care devices, etc.) and so on. [1]
Positive temperature coefficient thermistor ceramic resistor
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- Chinese name
- Positive temperature coefficient thermistor ceramic resistor
- Positive temperature coefficient thermal ceramic resistor is also called PTC. Thermal ceramic resistor. Semiconductor thermal ceramic with significant positive temperature coefficient characteristics. A type of semiconducting ceramic material with barium octoate or barium octoate-based solid solution as the main crystal phase. Its main characteristic is that the resistivity can change within a narrow temperature range of 20-30 ° C. The Curie temperature of many gates is usually between -8 and 380 ° C. High withstand voltage strength. Using barium carbonate and dioxin as raw materials, using donor doping technology, trivalent ions such as lanthanum, cerium, neodymium, praseodymium, yttrium, bismuth, antimony, etc. partially replace the tetravalent recognition ions. ) Sintering can form a solid solution to achieve semiconductivity. Its resistivity can reach below 100 · cm. The two formulations often add AI2O3, SiO2, TiO2 (also known as AST) to form a glass phase, and absorb harmful impurities in the raw materials that affect semiconductivity ( (Such as potassium, sodium, ferrous, magnesium, etc.). In order to improve the positive temperature coefficient effect and improve the physical properties, a small amount of thorium oxide and manganese oxide are often added. In order to increase the Curie temperature of barium cinnamate semiconductor ceramics, lead cinnamate can be introduced; if the Curie temperature is lowered, a cinnamate button can be added to make (Ba .Pb, Sr) Ti03 high temperature or low temperature resistance positive temperature coefficient heat Min ceramic. The requirements for the composition of the ingredients and the firing system are very strict. If the composition of the ingredients changes, the firing temperature is unstable, and improper control will affect the product performance and even form an insulator. It can be used to make liquid level depth detectors, temperature controllers, current limiters, motor and transistor overheat protectors, self-controlling heating elements (such as heaters, beauty care devices, etc.) and so on. [1]